BAL - Bitcoin After Life Electrum plugin (v0.2.8)

Behavior-preserving refactor of the original BAL plugin with clean separation
of business logic from the PyQt GUI.

Layout:
  bal/core/   GUI-free logic (util, plugin_base, heirs, will, willexecutors)
  bal/gui/qt/ PyQt6 presentation (theme, common, widgets, calendar, dialogs,
              lists, window, plugin)
  bal/qt.py   Qt entry-point shim (works as internal and external zip plugin)
  bal/manifest.json  standard-conforming metadata

Tooling:
  build_zip.py            deterministic, zipimport-friendly archive builder
  tests/smoke_test.py     imports + behavior regression test
  tests/external_zip_test.py  reproduces Electrum's external-zip loading

Targets Electrum 4.7.2 + PyQt6. Logic kept byte-identical where possible.

.gitignore

@@ -0,0 +1,5 @@
+**/__pycache__/
+*.pyc
+*.zip
+bal-electrum-plugin.zip
+electrum-src/

README.md

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+# BAL — Bitcoin After Life (Electrum plugin)
+
+Free and decentralized **Bitcoin inheritance** support for the
+[Electrum](https://electrum.org) wallet. Build time-locked "will" transactions
+that transfer your funds to your heirs if you stop refreshing them
+(dead-man's switch), optionally relayed by will-executor servers.
+
+This repository contains a **behavior-preserving refactor** of the original
+plugin. The logic was kept byte-identical wherever possible; only the file
+layout was reorganized to cleanly separate **business logic** from the
+**PyQt GUI**.
+
+## Repository layout
+
+```
+bal/                     the installable Electrum plugin package
+├── manifest.json        plugin metadata (Electrum reads this)
+├── qt.py                Qt entry-point shim (re-exports Plugin)
+├── core/                GUI-free logic (importable without Qt)
+│   ├── util.py
+│   ├── plugin_base.py
+│   ├── heirs.py
+│   ├── will.py
+│   └── willexecutors.py
+├── gui/qt/              PyQt6 presentation layer
+│   ├── theme.py         status → color mapping
+│   ├── common.py        shared imports / helpers
+│   ├── widgets.py       leaf widgets
+│   ├── calendar.py      calendar widget
+│   ├── dialogs.py       dialog windows
+│   ├── lists.py         tree/list views
+│   ├── window.py        per-wallet GUI controller
+│   └── plugin.py        Plugin (Electrum @hooks → GUI)
+├── icons/  wallet_util/  LICENSE  VERSION  README.md
+build_zip.py             builds a clean, zipimport-friendly distribution zip
+tests/                   smoke + external-zip regression tests
+```
+
+## Requirements
+
+- **Electrum 4.7.2** — the last stable release exposing `json_db.register_dict`,
+  which this plugin relies on. Newer versions removed it.
+- **PyQt6** (bundled with the Electrum desktop GUI).
+
+## Installation
+
+### Build the distribution archive
+
+```bash
+python3 build_zip.py
+# -> bal-electrum-plugin.zip  (prints size + SHA-256 for integrity checks)
+```
+
+The builder writes a `zipimport`-friendly archive (files only, standard
+DEFLATE, deterministic order) to avoid loader errors seen on some Electrum
+portable builds.
+
+### Install as an external plugin (zip)
+
+1. Electrum → **Tools → Plugins** → install from file → pick the built zip.
+2. Enable **Bitcoin After Life** and restart Electrum.
+3. (Recommended) verify the downloaded zip's SHA-256 matches the value printed
+   by `build_zip.py`.
+
+### Install as an internal plugin
+
+Copy the `bal/` directory into your Electrum installation's
+`electrum/plugins/` directory, so that `electrum/plugins/bal/manifest.json`
+exists, then enable it from **Tools → Plugins**.
+
+## Testing
+
+```bash
+# imports + behavior
+QT_QPA_PLATFORM=offscreen PYTHONPATH=<electrum-src> \
+    python3 tests/smoke_test.py electrum.plugins.bal
+
+# external-zip loading regression
+QT_QPA_PLATFORM=offscreen PYTHONPATH=<electrum-src> \
+    python3 tests/external_zip_test.py bal-electrum-plugin.zip
+```
+
+## ⚠️ Safety
+
+This plugin builds real Bitcoin inheritance transactions with time-locks. Test
+on **testnet** or a fund-less wallet first, and review the generated
+transactions before broadcasting.
+
+## License
+
+MIT — see [`bal/LICENSE`](bal/LICENSE).

bal/LICENSE

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+MIT License
+
+Copyright (c) 2024 copronista
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

bal/README.md

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+# BalPlugin
+Bitcoin After Life Electrum Plugin

bal/VERSION

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+0.2.8

bal/__init__.py

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+"""BAL - Bitcoin After Life Electrum plugin.
+
+Free and decentralized Bitcoin inheritance support for the Electrum wallet.
+
+This package was reorganized (Approach A: conservative, behavior-preserving)
+to cleanly separate logic from presentation. The original monolithic plugin
+mixed the business logic with the PyQt GUI; here the two concerns live in
+distinct sub-packages:
+
+    bal/
+        core/            GUI-free business logic (importable without Qt)
+            util.py          Generic helpers (encoding, validation, ...)
+            plugin_base.py   BasePlugin subclass, config, timestamp handling
+            heirs.py         Heir list model + transaction building
+            will.py          Will / WillItem domain model
+            willexecutors.py Will-executor (dead-man's switch) networking
+        gui/
+            qt/          PyQt6 presentation layer
+                theme.py     Colors / status -> color mapping (status_color)
+                common.py    Shared imports and small GUI helpers
+                widgets.py   Leaf widgets (editors, labels, checkboxes, ...)
+                calendar.py  BalCalendar widget
+                dialogs.py   Dialog windows (wizard, build-will, detail, ...)
+                lists.py     Tree/list views (heirs, preview, will-executors)
+                window.py    BalWindow controller (per-wallet GUI state)
+                plugin.py    Plugin class wiring Electrum @hooks to the GUI
+        qt.py            Thin loader shim re-exporting `Plugin` for Electrum
+
+Electrum discovers the plugin through ``manifest.json`` and loads the GUI
+entry point from ``qt.py`` (the shim), which imports the real ``Plugin``
+from ``gui.qt.plugin``.
+
+The plugin targets Electrum 4.7.2 (the last stable release exposing
+``json_db.register_dict``) and PyQt6.
+"""
+
+__version__ = "0.2.8"

bal/bal_resources.py

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+import os
+
+PLUGIN_DIR = os.path.split(os.path.realpath(__file__))[0]
+DEFAULT_ICON = "bal32x32.png"
+DEFAULT_ICON_PATH = "icons"
+
+
+def icon_path(icon_basename: str = DEFAULT_ICON):
+    path = resource_path(DEFAULT_ICON_PATH, icon_basename)
+    return path
+
+
+def resource_path(*parts):
+    return os.path.join(PLUGIN_DIR, *parts)

bal/core/__init__.py

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+"""
+bal.core
+========
+
+Pure business-logic layer of the Bitcoin After Life (BAL) Electrum plugin.
+
+Everything in this sub-package MUST stay completely free of any GUI / Qt
+imports.  The rule of thumb is:
+
+    * ``bal.core``      -> "what the plugin does" (inheritance rules, building
+                           and validating transactions, talking to
+                           will-executor servers, persistence helpers).
+    * ``bal.gui``       -> "how it looks" (Qt widgets, dialogs, list views).
+
+Keeping the two apart is the main motivation behind this rewrite: the original
+code mixed transaction-building logic and presentation inside a single
+4000-line ``qt.py`` module, which made the delicate Bitcoin logic hard to audit.
+
+No behaviour is changed with respect to the original plugin; the code has only
+been reorganised and documented.
+"""

bal/core/heirs.py

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+"""
+bal.core.heirs
+==============
+
+Heir management and inheritance-transaction building.
+
+This is the heart of the plugin's Bitcoin logic and the most delicate part of
+the whole codebase, so the implementation below is kept byte-for-byte identical
+to the original ``heirs.py``; only the dead commented-out imports were removed
+and documentation was added.
+
+An *heir* is stored as a small list addressed by the ``HEIR_*`` column
+constants defined below.  ``Heirs`` is a ``dict`` subclass persisted inside the
+wallet DB under the ``"heirs"`` key.
+
+The ``prepare_transactions`` / ``Heirs.buildTransactions`` functions turn the
+heir list plus the wallet UTXOs into a set of time-locked inheritance
+transactions (optionally including a will-executor fee output).
+
+Will-executor "heirs" are synthetic entries whose key starts with the
+``w!ll3x3c"`` marker; they are skipped by most heir comparisons.
+"""
+
+import math
+import random
+import re
+import threading
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Dict,
+    Optional,
+    Tuple,
+)
+
+import dns
+from dns.exception import DNSException
+from electrum import (
+    bitcoin,
+    constants,
+    dnssec,
+)
+from electrum.logging import Logger, get_logger
+from electrum.transaction import (
+    PartialTransaction,
+    PartialTxInput,
+    PartialTxOutput,
+    TxOutpoint,
+)
+from electrum.util import (
+    BitcoinException,
+    bfh,
+    read_json_file,
+    to_string,
+    trigger_callback,
+    write_json_file,
+)
+
+from .util import Util
+from .willexecutors import Willexecutors
+
+if TYPE_CHECKING:
+    from electrum.simple_config import SimpleConfig
+
+
+_logger = get_logger(__name__)
+
+# Column layout of a stored heir list.  These indices are part of the on-disk
+# wallet format and are relied upon all over the codebase, so they must NEVER
+# be reordered.
+HEIR_ADDRESS = 0       # destination Bitcoin address
+HEIR_AMOUNT = 1        # requested amount (satoshis or "<n>%")
+HEIR_LOCKTIME = 2      # locktime after which the heir may claim the funds
+HEIR_REAL_AMOUNT = 3   # resolved amount once percentages are computed
+HEIR_DUST_AMOUNT = 4   # amount when below dust threshold (marked "DUST: ...")
+TRANSACTION_LABEL = "inheritance transaction"
+
+
+class AliasNotFoundException(Exception):
+    pass
+
+
+def reduce_outputs(in_amount, out_amount, fee, outputs):
+    if in_amount < out_amount:
+        for output in outputs:
+            output.value = math.floor((in_amount - fee) / out_amount * output.value)
+
+
+def create_op_return_script(data_hex: str) -> bytes:
+    """Crea scriptpubkey OP_RETURN in bytes"""
+    data = bytes.fromhex(data_hex)
+
+    if len(data) > 80:
+        raise ValueError("OP_RETURN data too big (max 80 bytes)")
+
+    # Costruzione manuale: OP_RETURN + push data
+    if len(data) <= 75:
+        # Formato più comune: OP_RETURN + 1-byte length + data
+        script = b'\x6a' + bytes([len(data)]) + data
+    else:
+        # Per dati più grandi (fino a 80) si usa OP_PUSHDATA1
+        script = b'\x6a\x4c' + bytes([len(data)]) + data
+
+    return script
+
+def prepare_transactions(locktimes, available_utxos, fees, wallet):
+    available_utxos = sorted(
+        available_utxos,
+        key=lambda x: "{}:{}:{}".format(
+            x.value_sats(), x.prevout.txid, x.prevout.out_idx
+        ),
+    )
+    # total_used_utxos = []
+    txsout = {}
+    locktime, _ = Util.get_lowest_locktimes(locktimes)
+    if not locktime:
+        _logger.info("prepare transactions, no locktime")
+        return
+    locktime = locktime[0]
+
+    heirs = locktimes[locktime]
+    true = True
+    while true:
+        true = False
+        fee = fees.get(locktime, 0)
+        out_amount = fee
+        description = ""
+        outputs = []
+        paid_heirs = {}
+        for name, heir in heirs.items():
+            if len(heir) > HEIR_REAL_AMOUNT and "DUST" not in str(
+                heir[HEIR_REAL_AMOUNT]
+            ):
+                try:
+                    real_amount = heir[HEIR_REAL_AMOUNT]
+                    outputs.append(
+                        PartialTxOutput.from_address_and_value(
+                            heir[HEIR_ADDRESS], real_amount
+                        )
+                    )
+                    out_amount += real_amount
+                    description += f"{name}\n"
+                except BitcoinException as e:
+                    _logger.info("exception decoding output {} - {}".format(type(e), e))
+                    heir[HEIR_REAL_AMOUNT] = e
+
+                except Exception as e:
+                    heir[HEIR_REAL_AMOUNT] = e
+                    _logger.error(f"error preparing transactions: {e}")
+                    pass
+            paid_heirs[name] = heir
+
+        in_amount = 0.0
+        used_utxos = []
+        try:
+            while utxo := available_utxos.pop():
+                value = utxo.value_sats()
+                in_amount += value
+                used_utxos.append(utxo)
+                if in_amount >= out_amount:
+                    break
+
+        except IndexError as e:
+            _logger.error(
+                f"error preparing transactions index error {e} {in_amount}, {out_amount}"
+            )
+            pass
+        if int(in_amount) < int(out_amount):
+            _logger.error(
+                "error preparing transactions in_amount < out_amount ({} < {})      "
+            )
+            continue
+        heirsvalue = out_amount
+        change = get_change_output(wallet, in_amount, out_amount, fee)
+        if change:
+            outputs.append(change)
+        for i in range(0, 100):
+            random.shuffle(outputs)
+
+        #op_return_text = "Hello Bal!"
+
+        ## Convert text to hex
+        #op_return_hex = op_return_text.encode('utf-8').hex()
+        #op_return_script = create_op_return_script(op_return_hex)
+        #outputs.append(PartialTxOutput(value=0, scriptpubkey=op_return_script))
+        tx = PartialTransaction.from_io(
+            used_utxos,
+            outputs,
+            locktime=Util.parse_locktime_string(locktime, wallet),
+            version=2,
+        )
+        if len(description) > 0:
+            tx.description = description[:-1]
+        else:
+            tx.description = ""
+        tx.heirsvalue = heirsvalue
+        tx.set_rbf(True)
+        tx.remove_signatures()
+        txid = tx.txid()
+        if txid is None:
+            raise Exception(f"txid is none: {tx}")
+
+        tx.heirs = paid_heirs
+        tx.my_locktime = locktime
+        txsout[txid] = tx
+
+        if change:
+            change_idx = tx.get_output_idxs_from_address(change.address)
+            prevout = TxOutpoint(txid=bfh(tx.txid()), out_idx=change_idx.pop())
+            txin = PartialTxInput(prevout=prevout)
+            txin._trusted_value_sats = change.value
+            txin.script_descriptor = change.script_descriptor
+            txin.is_mine = True
+            txin._TxInput__address = change.address
+            txin._TxInput__scriptpubkey = change.scriptpubkey
+            txin._TxInput__value_sats = change.value
+            txin.utxo = tx
+            available_utxos.append(txin)
+        txsout[txid].available_utxos = available_utxos[:]
+    return txsout
+
+
+def get_utxos_from_inputs(tx_inputs, tx, utxos):
+    for tx_input in tx_inputs:
+        prevoutstr = tx_input.prevout.to_str()
+        utxos[prevoutstr] = utxos.get(prevoutstr, {"input": tx_input, "txs": []})
+        utxos[prevoutstr]["txs"].append(tx)
+    return utxos
+
+
+# TODO calculate de minimum inputs to be invalidated
+def invalidate_inheritance_transactions(wallet):
+    # listids = []
+    utxos = {}
+    dtxs = {}
+    for k, v in wallet.get_all_labels().items():
+        tx = None
+        if TRANSACTION_LABEL == v:
+            tx = wallet.adb.get_transaction(k)
+        if tx:
+            dtxs[tx.txid()] = tx
+            get_utxos_from_inputs(tx.inputs(), tx, utxos)
+
+    for key, utxo in utxos.items():
+        txid = key.split(":")[0]
+        if txid in dtxs:
+            for tx in utxo["txs"]:
+                txid = tx.txid()
+                del dtxs[txid]
+
+    utxos = {}
+    for txid, tx in dtxs.items():
+        get_utxos_from_inputs(tx.inputs(), tx, utxos)
+
+    utxos = sorted(utxos.items(), key=lambda item: len(item[1]))
+
+    remaining = {}
+    invalidated = []
+    for key, value in utxos:
+        for tx in value["txs"]:
+            txid = tx.txid()
+            if txid not in invalidated:
+                invalidated.append(tx.txid())
+                remaining[key] = value
+
+
+def print_transaction(heirs, tx, locktimes, tx_fees):
+    jtx = tx.to_json()
+    print(f"TX: {tx.txid()}\t-\tLocktime: {jtx['locktime']}")
+    print("---")
+    for inp in jtx["inputs"]:
+        print(f"{inp['address']}: {inp['value_sats']}")
+    print("---")
+    for out in jtx["outputs"]:
+        heirname = ""
+        for key in heirs.keys():
+            heir = heirs[key]
+            if heir[HEIR_ADDRESS] == out["address"] and str(heir[HEIR_LOCKTIME]) == str(
+                jtx["locktime"]
+            ):
+                heirname = key
+        print(f"{heirname}\t{out['address']}: {out['value_sats']}")
+
+    print()
+    size = tx.estimated_size()
+    print(
+        "fee: {}\texpected: {}\tsize: {}".format(
+            tx.input_value() - tx.output_value(), size * tx_fees, size
+        )
+    )
+
+    print()
+    try:
+        print(tx.serialize_to_network())
+    except Exception:
+        print("impossible to serialize")
+    print()
+
+
+def get_change_output(wallet, in_amount, out_amount, fee):
+    change_amount = int(in_amount - out_amount - fee)
+    if change_amount > wallet.dust_threshold():
+        change_addresses = wallet.get_change_addresses_for_new_transaction()
+        out = PartialTxOutput.from_address_and_value(change_addresses[0], change_amount)
+        out.is_change = True
+        return out
+
+
+class Heirs(dict, Logger):
+
+    def __init__(self, wallet):
+        Logger.__init__(self)
+        self.db = wallet.db
+        self.wallet = wallet
+        d = self.db.get("heirs", {})
+        try:
+            self.update(d)
+        except Exception:
+            return
+
+    def invalidate_transactions(self, wallet):
+        invalidate_inheritance_transactions(wallet)
+
+    def save(self):
+        self.db.put("heirs", dict(self))
+
+    def import_file(self, path):
+        data = read_json_file(path)
+        data = Heirs._validate(data)
+        self.update(data)
+        self.save()
+
+    def export_file(self, path):
+        write_json_file(path, self)
+
+    def __setitem__(self, key, value):
+        dict.__setitem__(self, key, value)
+        self.save()
+
+    def pop(self, key):
+        if key in self.keys():
+            res = dict.pop(self, key)
+            self.save()
+            return res
+
+    def get_locktimes(self, from_locktime, a=False):
+        locktimes = {}
+        for key in self.keys():
+            locktime = Util.parse_locktime_string(self[key][HEIR_LOCKTIME])
+            if locktime > from_locktime and not a or locktime <= from_locktime and a:
+                locktimes[int(locktime)] = None
+        return list(locktimes.keys())
+
+    def check_locktime(self):
+        return False
+
+    def normalize_perc(
+        self, heir_list, total_balance, relative_balance, wallet, real=False
+    ):
+        amount = 0
+        for key, v in heir_list.items():
+            try:
+                column = HEIR_AMOUNT
+                if real:
+                    column = HEIR_REAL_AMOUNT
+                if "DUST" in str(v[column]):
+                    column = HEIR_DUST_AMOUNT
+                value = int(
+                    math.floor(
+                        total_balance
+                        / relative_balance
+                        * self.amount_to_float(v[column])
+                    )
+                )
+                if value > wallet.dust_threshold():
+                    heir_list[key].insert(HEIR_REAL_AMOUNT, value)
+                    amount += value
+                else:
+                    heir_list[key].insert(HEIR_REAL_AMOUNT, f"DUST: {value}")
+                    heir_list[key].insert(HEIR_DUST_AMOUNT, value)
+                    _logger.info(f"{key}, {value} is dust will be ignored")
+
+            except Exception as e:
+                raise e
+        return amount
+
+    def amount_to_float(self, amount):
+        try:
+            return float(amount)
+        except Exception:
+            try:
+                return float(amount[:-1])
+            except Exception:
+                return 0.0
+
+    def fixed_percent_lists_amount(self, from_locktime, dust_threshold, reverse=False):
+        fixed_heirs = {}
+        fixed_amount = 0.0
+        percent_heirs = {}
+        percent_amount = 0.0
+        fixed_amount_with_dust = 0.0
+        for key in self.keys():
+            try:
+                cmp = (
+                    Util.parse_locktime_string(self[key][HEIR_LOCKTIME]) - from_locktime
+                )
+                if cmp <= 0:
+                    _logger.debug(
+                        "cmp < 0 {} {} {} {}".format(
+                            cmp, key, self[key][HEIR_LOCKTIME], from_locktime
+                        )
+                    )
+                    continue
+                if Util.is_perc(self[key][HEIR_AMOUNT]):
+                    percent_amount += float(self[key][HEIR_AMOUNT][:-1])
+                    percent_heirs[key] = list(self[key])
+                else:
+                    heir_amount = int(math.floor(float(self[key][HEIR_AMOUNT])))
+                    fixed_amount_with_dust += heir_amount
+                    fixed_heirs[key] = list(self[key])
+                    if heir_amount > dust_threshold:
+                        fixed_amount += heir_amount
+                        fixed_heirs[key].insert(HEIR_REAL_AMOUNT, heir_amount)
+                    else:
+                        fixed_heirs[key] = list(self[key])
+                        fixed_heirs[key].insert(
+                            HEIR_REAL_AMOUNT, f"DUST: {heir_amount}"
+                        )
+                        fixed_heirs[key].insert(HEIR_DUST_AMOUNT, heir_amount)
+            except Exception as e:
+                _logger.error(e)
+        return (
+            fixed_heirs,
+            fixed_amount,
+            percent_heirs,
+            percent_amount,
+            fixed_amount_with_dust,
+        )
+
+    def prepare_lists(
+        self, balance, total_fees, wallet, willexecutor=False, from_locktime=0
+    ):
+        if balance<total_fees or balance < wallet.dust_threshold():
+            raise BalanceTooLowException(balance,wallet.dust_threshold(),total_fees)
+        willexecutors_amount = 0
+        willexecutors = {}
+        heir_list = {}
+        onlyfixed = False
+        newbalance = balance - total_fees
+        locktimes = self.get_locktimes(from_locktime)
+        if willexecutor:
+            for locktime in locktimes:
+                if int(Util.int_locktime(locktime)) > int(from_locktime):
+                    try:
+                        base_fee = int(willexecutor["base_fee"])
+                        willexecutors_amount += base_fee
+                        h = [None] * 4
+                        h[HEIR_AMOUNT] = base_fee
+                        h[HEIR_REAL_AMOUNT] = base_fee
+                        h[HEIR_LOCKTIME] = locktime
+                        h[HEIR_ADDRESS] = willexecutor["address"]
+                        willexecutors[
+                            'w!ll3x3c"' + willexecutor["url"] + '"' + str(locktime)
+                        ] = h
+                    except Exception:
+                        return [], False
+                else:
+                    _logger.error(
+                        f"heir excluded from will locktime({locktime}){Util.int_locktime(locktime)}<minimum{from_locktime}"
+                    ),
+            heir_list.update(willexecutors)
+            newbalance -= willexecutors_amount
+            if newbalance < 0:
+                raise WillExecutorFeeException(willexecutor)
+        (
+            fixed_heirs,
+            fixed_amount,
+            percent_heirs,
+            percent_amount,
+            fixed_amount_with_dust,
+        ) = self.fixed_percent_lists_amount(from_locktime, wallet.dust_threshold())
+        if fixed_amount > newbalance:
+            fixed_amount = self.normalize_perc(
+                fixed_heirs, newbalance, fixed_amount, wallet
+            )
+            onlyfixed = True
+
+        heir_list.update(fixed_heirs)
+
+        newbalance -= fixed_amount
+        if newbalance > 0:
+            perc_amount = self.normalize_perc(
+                percent_heirs, newbalance, percent_amount, wallet
+            )
+            newbalance -= perc_amount
+            heir_list.update(percent_heirs)
+        if newbalance > 0:
+            newbalance += fixed_amount
+            fixed_amount = self.normalize_perc(
+                fixed_heirs, newbalance, fixed_amount_with_dust, wallet, real=True
+            )
+            newbalance -= fixed_amount
+            heir_list.update(fixed_heirs)
+
+        heir_list = sorted(
+            heir_list.items(),
+            key=lambda item: Util.parse_locktime_string(item[1][HEIR_LOCKTIME], wallet),
+        )
+
+        locktimes = {}
+        for key, value in heir_list:
+            locktime = Util.parse_locktime_string(value[HEIR_LOCKTIME])
+            if locktime not in locktimes:
+                locktimes[locktime] = {key: value}
+            else:
+                locktimes[locktime][key] = value
+        return locktimes, onlyfixed
+
+    def is_perc(self, key):
+        return Util.is_perc(self[key][HEIR_AMOUNT])
+
+    def buildTransactions(
+        self, bal_plugin, wallet, tx_fees=None, utxos=None, from_locktime=0
+    ):
+        Heirs._validate(self)
+        if len(self) <= 0:
+            _logger.info("while building transactions there was no heirs")
+            return
+        balance = 0.0
+        len_utxo_set = 0
+        available_utxos = []
+        if not utxos:
+            utxos = wallet.get_utxos()
+        willexecutors = Willexecutors.get_willexecutors(bal_plugin) or {}
+        self.decimal_point = bal_plugin.get_decimal_point()
+        no_willexecutors = bal_plugin.NO_WILLEXECUTOR.get()
+        for utxo in utxos:
+            if utxo.value_sats() > 0 * tx_fees:
+                balance += utxo.value_sats()
+                len_utxo_set += 1
+                available_utxos.append(utxo)
+        if len_utxo_set == 0:
+            _logger.info("no usable utxos")
+            return
+        j = -2
+        willexecutorsitems = list(willexecutors.items())
+        willexecutorslen = len(willexecutorsitems)
+        alltxs = {}
+        while True:
+            j += 1
+            if j >= willexecutorslen:
+                break
+            elif 0 <= j:
+                url, willexecutor = willexecutorsitems[j]
+                if not Willexecutors.is_selected(willexecutor) or willexecutor["base_fee"] < wallet.dust_threshold():
+                    continue
+                else:
+                    willexecutor["url"] = url
+            elif j == -1:
+                if not no_willexecutors:
+                    continue
+                url = willexecutor = False
+            else:
+                break
+            fees = {}
+            i = 0
+            while i < 10:
+                txs = {}
+                redo = False
+                i += 1
+                total_fees = 0
+                for fee in fees:
+                    total_fees += int(fees[fee])
+                # newbalance = balance
+                try:
+                    locktimes, onlyfixed = self.prepare_lists(
+                        balance, total_fees, wallet, willexecutor, from_locktime
+                    )
+                except WillExecutorFeeException:
+                    i = 10
+                    continue
+                if locktimes:
+                    try:
+                        txs = prepare_transactions(
+                            locktimes, available_utxos[:], fees, wallet
+                        )
+                        if not txs:
+                            return {}
+                    except Exception as e:
+                        _logger.error(
+                            f"build transactions: error preparing transactions: {e}"
+                        )
+                        try:
+                            if "w!ll3x3c" in e.heirname:
+                                Willexecutors.is_selected(
+                                    e.heirname[len("w!ll3x3c") :], False
+                                )
+                                break
+                        except Exception:
+                            raise e
+                    total_fees = 0
+                    total_fees_real = 0
+                    total_in = 0
+                    for txid, tx in txs.items():
+                        tx.willexecutor = willexecutor
+                        fee = tx.estimated_size() * tx_fees
+                        txs[txid].tx_fees = tx_fees
+                        total_fees += fee
+                        total_fees_real += tx.get_fee()
+                        total_in += tx.input_value()
+                        rfee = tx.input_value() - tx.output_value()
+                        if rfee < fee or rfee > fee + wallet.dust_threshold():
+                            redo = True
+                        # oldfees = fees.get(tx.my_locktime, 0)
+                        fees[tx.my_locktime] = fee
+
+                    if balance - total_in > wallet.dust_threshold():
+                        redo = True
+                    if not redo:
+                        break
+                    if i >= 10:
+                        break
+                else:
+                    _logger.info(
+                        f"no locktimes for willexecutor {willexecutor} skipped"
+                    )
+                    break
+            alltxs.update(txs)
+
+        return alltxs
+
+    def get_transactions(
+        self, bal_plugin, wallet, tx_fees, utxos=None, from_locktime=0
+    ):
+        txs = self.buildTransactions(bal_plugin, wallet, tx_fees, utxos, from_locktime)
+        if txs:
+            temp_txs = {}
+            for txid in txs:
+                if txs[txid].available_utxos:
+                    temp_txs.update(
+                        self.get_transactions(
+                            bal_plugin,
+                            wallet,
+                            tx_fees,
+                            txs[txid].available_utxos,
+                            txs[txid].locktime,
+                        )
+                    )
+            txs.update(temp_txs)
+        return txs
+
+    def resolve(self, k):
+        if bitcoin.is_address(k):
+            return {"address": k, "type": "address"}
+        if k in self.keys():
+            _type, addr = self[k]
+            if _type == "address":
+                return {"address": addr, "type": "heir"}
+        if openalias := self.resolve_openalias(k):
+            return openalias
+        raise AliasNotFoundException("Invalid Bitcoin address or alias", k)
+
+    @classmethod
+    def resolve_openalias(cls, url: str) -> Dict[str, Any]:
+        out = cls._resolve_openalias(url)
+        if out:
+            address, name, validated = out
+            return {
+                "address": address,
+                "name": name,
+                "type": "openalias",
+                "validated": validated,
+            }
+        return {}
+
+    def by_name(self, name):
+        for k in self.keys():
+            _type, addr = self[k]
+            if addr.casefold() == name.casefold():
+                return {"name": addr, "type": _type, "address": k}
+        return None
+
+    def fetch_openalias(self, config: "SimpleConfig"):
+        self.alias_info = None
+        alias = config.OPENALIAS_ID
+        if alias:
+            alias = str(alias)
+
+            def f():
+                self.alias_info = self._resolve_openalias(alias)
+                trigger_callback("alias_received")
+
+            t = threading.Thread(target=f)
+            t.daemon = True
+            t.start()
+
+    @classmethod
+    def _resolve_openalias(cls, url: str) -> Optional[Tuple[str, str, bool]]:
+        # support email-style addresses, per the OA standard
+        url = url.replace("@", ".")
+        try:
+            records, validated = dnssec.query(url, dns.rdatatype.TXT)
+        except DNSException as e:
+            _logger.info(f"Error resolving openalias: {repr(e)}")
+            return None
+        prefix = "btc"
+        for record in records:
+            string = to_string(record.strings[0], "utf8")
+            if string.startswith("oa1:" + prefix):
+                address = cls.find_regex(string, r"recipient_address=([A-Za-z0-9]+)")
+                name = cls.find_regex(string, r"recipient_name=([^;]+)")
+                if not name:
+                    name = address
+                if not address:
+                    continue
+                return address, name, validated
+
+    @staticmethod
+    def find_regex(haystack, needle):
+        regex = re.compile(needle)
+        try:
+            return regex.search(haystack).groups()[0]
+        except AttributeError:
+            return None
+
+    def validate_address(address):
+        if not bitcoin.is_address(address, net=constants.net):
+            raise NotAnAddress(f"not an address,{address}")
+        return address
+
+    def validate_amount(amount):
+        try:
+            famount = float(amount[:-1]) if Util.is_perc(amount) else float(amount)
+            if famount <= 0.00000001:
+                raise AmountNotValid(f"amount have to be positive {famount} < 0")
+        except Exception as e:
+            raise AmountNotValid(f"amount not properly formatted, {e}")
+        return amount
+
+    def validate_locktime(locktime, timestamp_to_check=False):
+        try:
+            if timestamp_to_check:
+                if Util.parse_locktime_string(locktime, None) < timestamp_to_check:
+                    raise HeirExpiredException()
+        except Exception as e:
+            raise LocktimeNotValid(f"locktime string not properly formatted, {e}")
+        return locktime
+
+    def validate_heir(k, v, timestamp_to_check=False):
+        address = Heirs.validate_address(v[HEIR_ADDRESS])
+        amount = Heirs.validate_amount(v[HEIR_AMOUNT])
+        locktime = Heirs.validate_locktime(v[HEIR_LOCKTIME], timestamp_to_check)
+        return (address, amount, locktime)
+
+    def _validate(data, timestamp_to_check=False):
+
+        for k, v in list(data.items()):
+            if k == "heirs":
+                return Heirs._validate(v, timestamp_to_check)
+            try:
+                Heirs.validate_heir(k, v, timestamp_to_check)
+            except Exception as e:
+                _logger.info(f"exception heir removed {e}")
+                data.pop(k)
+        return data
+
+
+class NotAnAddress(ValueError):
+    pass
+
+
+class AmountNotValid(ValueError):
+    pass
+
+
+class LocktimeNotValid(ValueError):
+    pass
+
+
+class HeirExpiredException(LocktimeNotValid):
+    pass
+
+
+class HeirAmountIsDustException(Exception):
+    pass
+
+
+class NoHeirsException(Exception):
+    pass
+
+
+class WillExecutorFeeException(Exception):
+    def __init__(self, willexecutor):
+        self.willexecutor = willexecutor
+
+    def __str__(self):
+        return "WillExecutorFeeException: {} fee:{}".format(
+            self.willexecutor["url"], self.willexecutor["base_fee"]
+        )
+class BalanceTooLowException(Exception):
+    def __init__(self,balance, dust_threshold, fees):
+        self.balance=balance
+        self.dust_threshold = dust_threshold
+        self.fees = fees
+    def __str__(self):
+        return f"Balance too low, balance: {self.balance}, dust threshold: {self.dust_threshold}, fees: {self.fees}"

bal/core/plugin_base.py

@@ -0,0 +1,351 @@
+"""
+bal.core.plugin_base
+=====================
+
+GUI-agnostic foundation of the plugin.
+
+It contains:
+    * :class:`BalConfig`   - a thin typed wrapper around an Electrum config key
+                             with a default value.
+    * :class:`BalPlugin`   - the base plugin class (extends Electrum's
+                             ``BasePlugin``) holding every configuration option
+                             and the default "will settings".  The Qt-specific
+                             ``Plugin`` subclass lives in ``bal.gui.qt.plugin``.
+    * :class:`BalTimestamp`- helper to convert between relative durations
+                             (``"30d"``, ``"1y"``) and absolute timestamps.
+
+It also registers the three custom persisted dictionaries (``heirs``,
+``will`` and ``will_settings``) with Electrum's JSON database so they are
+serialised together with the wallet file.
+
+This module performs **no** GUI work and imports nothing from PyQt / electrum.gui.
+"""
+
+import os
+import platform
+from datetime import date, datetime, timedelta
+
+from electrum import constants, json_db
+from electrum.logging import get_logger
+from electrum.plugin import BasePlugin
+from electrum.transaction import tx_from_any
+
+_logger = get_logger(__name__)
+
+
+# --------------------------------------------------------------------------- #
+# Wallet-DB registration
+# --------------------------------------------------------------------------- #
+# Electrum needs to know how to (de)serialise the custom dictionaries the
+# plugin stores inside the wallet file.  ``register_dict`` associates a key
+# name with a conversion callable applied to each value when the wallet is
+# loaded.  ``will`` values run through ``get_will`` so the stored transaction
+# hex is turned back into a ``Transaction`` object.
+def get_will(x):
+    """Deserialise a stored will entry, rebuilding its ``tx`` object."""
+    try:
+        x["tx"] = tx_from_any(x["tx"])
+    except Exception as e:
+        raise e
+    return x
+
+
+json_db.register_dict("heirs", tuple, None)
+json_db.register_dict("will", dict, None)
+json_db.register_dict("will_settings", lambda x: x, None)
+
+
+class BalConfig:
+    """Typed accessor for a single Electrum configuration key.
+
+    Wraps ``config.get`` / ``config.set_key`` and supplies a default value
+    when the key is missing.
+    """
+
+    def __init__(self, config, name, default):
+        self.config = config
+        self.name = name
+        self.default = default
+
+    def get(self, default=None):
+        """Return the stored value, falling back to ``default`` then ``self.default``."""
+        v = self.config.get(self.name, default)
+        if v is None:
+            if default is not None:
+                v = default
+            else:
+                v = self.default
+        return v
+
+    def set(self, value, save=True):
+        """Persist ``value`` for this key."""
+        self.config.set_key(self.name, value, save=save)
+
+
+class BalPlugin(BasePlugin):
+    """Base plugin: holds configuration and default inheritance settings.
+
+    The GUI layer subclasses this in ``bal.gui.qt.plugin.Plugin`` and adds the
+    Electrum ``@hook`` methods.  Keeping the configuration here means the CLI
+    layer (or unit tests) can use the plugin logic without importing Qt.
+    """
+
+    _version = None
+    __version__ = "0.2.8"  # AUTOMATICALLY GENERATED DO NOT EDIT
+
+    # Command used to open an .ics calendar file, per operating system.
+    default_app = {
+        "Linux": "xdg-open",
+        "Windows": "cmd /c start",
+        "Darwin": "open",
+    }
+
+    # Human-readable chain name ("bitcoin", "testnet", "regtest", ...).
+    chainname = (
+        constants.net.NET_NAME if constants.net.NET_NAME != "mainnet" else "bitcoin"
+    )
+
+    # Default geometry hint for some dialogs (kept from the original code).
+    SIZE = (159, 97)
+
+    def version(self):
+        """Return the plugin version, read once from the ``VERSION`` file."""
+        if not self._version:
+            try:
+                f = ""
+                with open("{}/VERSION".format(self.plugin_dir), "r") as fi:
+                    f = str(fi.read())
+                self._version = f.strip()
+            except Exception as e:
+                _logger.error(f"failed to get version: {e}")
+                self._version = "unknown"
+        return self._version
+
+    def __init__(self, parent, config, name):
+        self.logger = get_logger(__name__)
+        BasePlugin.__init__(self, parent, config, name)
+
+        # Base directory for plugin data inside the Electrum data dir.
+        self.base_dir = os.path.join(config.electrum_path(), "bal")
+        self.plugin_dir = os.path.split(os.path.realpath(__file__))[0]
+
+        # Make the plugin importable when loaded from a zip (legacy behaviour:
+        # the parent directory of this file is added to ``sys.path``).
+        zipfile = "/".join(self.plugin_dir.split("/")[:-1])
+        import sys
+
+        sys.path.insert(0, zipfile)
+
+        self.parent = parent
+        self.config = config
+        self.name = name
+
+        # ---------------------------------------------------------------- #
+        # Configuration options (all persisted via Electrum's config).
+        # ---------------------------------------------------------------- #
+        self.ASK_BROADCAST = BalConfig(config, "bal_ask_broadcast", True)
+        self.BROADCAST = BalConfig(config, "bal_broadcast", True)
+        self.LOCKTIME_TIME = BalConfig(config, "bal_locktime_time", 90)
+        self.LOCKTIME_BLOCKS = BalConfig(config, "bal_locktime_blocks", 144 * 90)
+        self.LOCKTIMEDELTA_TIME = BalConfig(config, "bal_locktimedelta_time", 7)
+        self.LOCKTIMEDELTA_BLOCKS = BalConfig(
+            config, "bal_locktimedelta_blocks", 144 * 7
+        )
+        self.ENABLE_MULTIVERSE = BalConfig(config, "bal_enable_multiverse", False)
+        self.TX_FEES = BalConfig(config, "bal_tx_fees", 100)
+        self.INVALIDATE = BalConfig(config, "bal_invalidate", True)
+        self.ASK_INVALIDATE = BalConfig(config, "bal_ask_invalidate", True)
+        self.PREVIEW = BalConfig(config, "bal_preview", True)
+        self.SAVE_TXS = BalConfig(config, "bal_save_txs", True)
+
+        self.NO_WILLEXECUTOR = BalConfig(config, "bal_no_willexecutor", True)
+        self.HIDE_REPLACED = BalConfig(config, "bal_hide_replaced", True)
+        self.HIDE_INVALIDATED = BalConfig(config, "bal_hide_invalidated", True)
+        self.ALLOW_REPUSH = BalConfig(config, "bal_allow_repush", True)
+        self.FIRST_EXECUTION = BalConfig(config, "bal_first_execution", True)
+        self.WELIST_SERVER = BalConfig(
+            config, "bal_welist_server", "https://welist.bitcoin-after.life/"
+        )
+        self.EVENT_DESCRIPTION = BalConfig(
+            config,
+            "bal_event_description",
+            "BAL will execution of $wallet_name\r\n heirs list:  \r\n$heirs_complete",
+        )
+        self.EVENT_SUMMARY = BalConfig(
+            config, "bal_event_summary", "BAL -Will execution of $wallet_name"
+        )
+
+        # Default will-executor servers, keyed by network.
+        self.WILLEXECUTORS = BalConfig(
+            config,
+            "bal_willexecutors",
+            {
+                "mainnet": {
+                    "https://we.bitcoin-after.life": {
+                        "base_fee": 100000,
+                        "status": "New",
+                        "info": "Bitcoin After Life Will Executor",
+                        "address": "bc1qusymuetsz2psaqzqxv8qmzcy64d9meckj3lxxf",
+                        "selected": True,
+                    }
+                },
+                "testnet": {
+                    "https://we.bitcoin-after.life": {
+                        "base_fee": 100000,
+                        "status": "New",
+                        "info": "Bitcoin After Life Will Executor",
+                        "address": "bcrt1qa5cntu4hgadw8zd3n6sq2nzjy34sxdtd9u0gp7",
+                        "selected": True,
+                    }
+                },
+                "testnet4": {
+                    "https://we.bitcoin-after.life": {
+                        "base_fee": 100000,
+                        "status": "New",
+                        "info": "Bitcoin After Life Will Executor",
+                        "address": "bcrt1qa5cntu4hgadw8zd3n6sq2nzjy34sxdtd9u0gp7",
+                        "selected": True,
+                    }
+                },
+                "regtest": {
+                    "https://we.bitcoin-after.life": {
+                        "base_fee": 100000,
+                        "status": "New",
+                        "info": "Bitcoin After Life Will Executor",
+                        "address": "bcrt1qa5cntu4hgadw8zd3n6sq2nzjy34sxdtd9u0gp7",
+                        "selected": True,
+                    }
+                },
+            },
+        )
+        self.WILL_SETTINGS = BalConfig(
+            config,
+            "bal_will_settings",
+            BalPlugin.default_will_settings(),
+        )
+
+        self.system = platform.system()
+        self.CALENDAR_APP = BalConfig(
+            config, "bal_open_app", self.default_app.get(self.system, "")
+        )
+
+        # Cached toggles used by the GUI list filters.
+        self._hide_invalidated = self.HIDE_INVALIDATED.get()
+        self._hide_replaced = self.HIDE_REPLACED.get()
+
+    def resource_path(self, *parts):
+        """Absolute path to a file bundled inside the plugin directory."""
+        return os.path.join(self.plugin_dir, *parts)
+
+    def hide_invalidated(self):
+        """Toggle (and persist) the "hide invalidated transactions" filter."""
+        self._hide_invalidated = not self._hide_invalidated
+        self.HIDE_INVALIDATED.set(self._hide_invalidated)
+
+    def hide_replaced(self):
+        """Toggle (and persist) the "hide replaced transactions" filter."""
+        self._hide_replaced = not self._hide_replaced
+        self.HIDE_REPLACED.set(self._hide_replaced)
+
+    def validate_will_settings(self, will_settings):
+        """Fill in any missing will-setting with its default value."""
+        defaults = BalPlugin.default_will_settings()
+        if not will_settings:
+            will_settings = []
+        if int(will_settings.get("baltx_fees", 0)) < 1:
+            will_settings["baltx_fees"] = defaults['baltx_fees']
+        if not will_settings.get("threshold"):
+            will_settings["threshold"] = defaults['threshold']
+        if not will_settings.get("locktime"):
+            will_settings["locktime"] = defaults['locktime']
+        return will_settings
+
+    @staticmethod
+    def default_will_settings():
+        """Default will settings: a fee rate plus absolute threshold/locktime."""
+        will_settings = {"baltx_fees": 100}
+        will_settings.update(BalPlugin.default_will_settings_absolute())
+        return will_settings
+
+    @staticmethod
+    def default_will_settings_absolute():
+        """Convert the default relative dates into absolute timestamps (from today)."""
+        relative_dates = BalPlugin.default_will_settings_relative()
+        today = date.today()
+        dt = datetime(today.year, today.month, today.day, 0, 0, 0)
+        threshold = (
+            dt + timedelta(days=BalTimestamp(relative_dates["threshold"]).duration_to_days())
+        ).timestamp()
+        locktime = (
+            dt + timedelta(days=BalTimestamp(relative_dates["locktime"]).duration_to_days())
+        ).timestamp()
+        return {"threshold": threshold, "locktime": locktime}
+
+    @staticmethod
+    def default_will_settings_relative():
+        """Default relative dates: 30 days threshold, 1 year locktime."""
+        return {"threshold": "30d", "locktime": "1y"}
+
+
+class BalTimestamp:
+    """Parse and convert relative durations / absolute timestamps.
+
+    A value may be:
+        * ``"<n>y"`` -> ``n`` years (unit ``"y"``)
+        * ``"<n>d"`` -> ``n`` days  (unit ``"d"``)
+        * an integer -> an absolute UNIX timestamp (``unit is None``)
+    """
+
+    value = None
+    unit = None
+
+    def __init__(self, value):
+        str_value = str(value)
+        if str_value and str_value[-1].lower() in ("y", "d"):
+            self.value = int(str_value[:-1])
+            self.unit = str_value[-1]
+        else:
+            try:
+                self.value = int(value)
+            except Exception as _e:
+                self.value = 1
+            self.unit = None
+
+    def duration_to_days(self):
+        """Return the duration expressed in days (years are ``*365``)."""
+        return self.value * 365 if self.unit == 'y' else self.value
+
+    def to_date(self, from_date=None, reverse=False):
+        """Resolve to a ``datetime``.
+
+        For absolute values the stored timestamp is returned; for relative ones
+        the duration is added to (or, if ``reverse``, subtracted from)
+        ``from_date`` (defaulting to *now*), normalised to midnight.
+        """
+        if self.unit is None:
+            return datetime.fromtimestamp(self.value)
+        else:
+            if from_date is None:
+                from_date = datetime.now()
+            if isinstance(from_date, (int, float)):
+                from_date = datetime.fromtimestamp(from_date)
+            reverse = 1 if not reverse else -1
+            return (
+                from_date + (reverse * timedelta(days=self.duration_to_days()))
+            ).replace(hour=0, minute=0, second=0, microsecond=0)
+
+    def to_timestamp(self, from_date=None, reverse=False):
+        """Same as :meth:`to_date` but returns a UNIX timestamp."""
+        return self.to_date(from_date, reverse).timestamp()
+
+    def __str__(self):
+        if self.unit is None:
+            return datetime.fromtimestamp(self.value).isoformat()
+        else:
+            return f"{self.value}{self.unit}"
+
+    def __repr__(self):
+        if self.unit is None:
+            return datetime.fromtimestamp(self.value).to_date().timestamp()
+        else:
+            return f"{self.value}{self.unit}"

bal/core/util.py

@@ -0,0 +1,614 @@
+"""
+bal.core.util
+=============
+
+Small, stateless helper functions shared across the whole plugin.
+
+This module is intentionally GUI-free: it only deals with locktimes, amount
+encoding/decoding, and comparing transactions / inputs / outputs / heirs.
+
+Historical note
+---------------
+The original ``util.py`` also contained a set of ``print_*`` debugging helpers
+(``print_var``, ``print_utxo``, ``print_prevout``) that dumped objects to
+``stdout``.  Those were development-only scaffolding, never called by the
+plugin logic, so they have been removed during the rewrite.  No behavioural
+function has been changed: every method below is logically identical to the
+original implementation.
+"""
+
+import bisect
+from datetime import datetime, timedelta
+
+from electrum.transaction import PartialTxOutput
+
+# Bitcoin consensus rule: an nLockTime value strictly below this threshold is
+# interpreted as a *block height*, otherwise it is interpreted as a *UNIX
+# timestamp*.  This single constant drives most of the locktime handling below.
+LOCKTIME_THRESHOLD = 500000000
+
+
+class Util:
+    """Namespace of static helpers (kept as a class to preserve the original
+    ``Util.method(...)`` call sites used throughout the plugin)."""
+
+    # ------------------------------------------------------------------ #
+    # Locktime helpers
+    # ------------------------------------------------------------------ #
+    @staticmethod
+    def locktime_to_str(locktime):
+        """Render a locktime for display.
+
+        If the value looks like a timestamp (``> LOCKTIME_THRESHOLD``) it is
+        formatted as an ISO date string; otherwise it is returned as-is.
+        """
+        try:
+            locktime = int(locktime)
+            if locktime > LOCKTIME_THRESHOLD:
+                dt = datetime.fromtimestamp(locktime).isoformat()
+                return dt
+
+        except Exception:
+            pass
+        return str(locktime)
+
+    @staticmethod
+    def str_to_locktime(locktime):
+        """Parse a user-entered locktime string into its stored form.
+
+        Relative values keep their suffix (``"30d"``, ``"1y"``, ``"144b"``);
+        absolute ISO dates are converted to an integer UNIX timestamp.
+        """
+        try:
+            if locktime[-1] in ("y", "d", "b"):
+                return locktime
+            else:
+                return int(locktime)
+        except Exception:
+            pass
+        dt_object = datetime.fromisoformat(locktime)
+        timestamp = dt_object.timestamp()
+        return int(timestamp)
+
+    @staticmethod
+    def parse_locktime_string(locktime, w=None):
+        """Resolve a (possibly relative) locktime string into a concrete int.
+
+        Supported forms:
+            * plain int / timestamp -> returned unchanged
+            * ``"<n>y"``            -> n years from now (as a timestamp)
+            * ``"<n>d"``            -> n days from now (as a timestamp)
+            * ``"<n>b"``            -> current block height + n (needs wallet
+                                       ``w`` to read the chain height)
+        """
+        try:
+            return int(locktime)
+
+        except Exception:
+            pass
+        try:
+            now = datetime.now()
+            if locktime[-1] == "y":
+                locktime = str(int(locktime[:-1]) * 365) + "d"
+            if locktime[-1] == "d":
+                return int(
+                    (now + timedelta(days=int(locktime[:-1])))
+                    .replace(hour=0, minute=0, second=0, microsecond=0)
+                    .timestamp()
+                )
+            if locktime[-1] == "b":
+                locktime = int(locktime[:-1])
+                height = 0
+                if w:
+                    height = Util.get_current_height(w.network)
+                locktime += int(height)
+            return int(locktime)
+        except Exception:
+            pass
+        return 0
+
+    @staticmethod
+    def int_locktime(seconds=0, minutes=0, hours=0, days=0, blocks=0):
+        """Convert a human duration into seconds (blocks counted as 600s each)."""
+        return int(
+            seconds
+            + minutes * 60
+            + hours * 60 * 60
+            + days * 60 * 60 * 24
+            + blocks * 600
+        )
+
+    # ------------------------------------------------------------------ #
+    # Amount helpers
+    # ------------------------------------------------------------------ #
+    @staticmethod
+    def encode_amount(amount, decimal_point):
+        """Convert a displayed BTC amount into integer satoshis.
+
+        Percentage amounts (e.g. ``"50%"``) are passed through unchanged, since
+        they are resolved later against the wallet balance.
+        """
+        if Util.is_perc(amount):
+            return amount
+        else:
+            try:
+                return int(float(amount) * pow(10, decimal_point))
+            except Exception:
+                return 0
+
+    @staticmethod
+    def decode_amount(amount, decimal_point):
+        """Inverse of :meth:`encode_amount`: satoshis -> displayed string."""
+        if Util.is_perc(amount):
+            return amount
+        else:
+            basestr = "{{:0.{}f}}".format(decimal_point)
+            try:
+                return basestr.format(float(amount) / pow(10, decimal_point))
+            except Exception:
+                return str(amount)
+
+    @staticmethod
+    def is_perc(value):
+        """True if ``value`` is a percentage string such as ``"25%"``."""
+        try:
+            return value[-1] == "%"
+        except Exception:
+            return False
+
+    # ------------------------------------------------------------------ #
+    # Heir / will-executor comparison helpers
+    # ------------------------------------------------------------------ #
+    @staticmethod
+    def cmp_array(heira, heirb):
+        """Element-wise equality of two sequences (length-safe)."""
+        try:
+            if len(heira) != len(heirb):
+                return False
+            for h in range(0, len(heira)):
+                if heira[h] != heirb[h]:
+                    return False
+            return True
+        except Exception:
+            return False
+
+    @staticmethod
+    def cmp_heir(heira, heirb):
+        """Two heirs are "the same" when address (0) and amount (1) match."""
+        if heira[0] == heirb[0] and heira[1] == heirb[1]:
+            return True
+        return False
+
+    @staticmethod
+    def cmp_willexecutor(willexecutora, willexecutorb):
+        """Compare two will-executor dicts by url / address / base_fee."""
+        if willexecutora == willexecutorb:
+            return True
+        try:
+            if (
+                willexecutora["url"] == willexecutorb["url"]
+                and willexecutora["address"] == willexecutorb["address"]
+                and willexecutora["base_fee"] == willexecutorb["base_fee"]
+            ):
+                return True
+        except Exception:
+            return False
+        return False
+
+    @staticmethod
+    def search_heir_by_values(heirs, heir, values):
+        """Return the key of the first heir in ``heirs`` matching ``heir`` on
+        every column listed in ``values`` (or ``False`` if none)."""
+        for h, v in heirs.items():
+            found = False
+            for val in values:
+                if val in v and v[val] != heir[val]:
+                    found = True
+
+            if not found:
+                return h
+        return False
+
+    @staticmethod
+    def cmp_heir_by_values(heira, heirb, values):
+        """True when two heirs agree on every column index in ``values``."""
+        for v in values:
+            if heira[v] != heirb[v]:
+                return False
+        return True
+
+    @staticmethod
+    def cmp_heirs_by_values(
+        heirsa, heirsb, values, exclude_willexecutors=False, reverse=True
+    ):
+        """Set-equality of two heir collections, comparing only ``values``.
+
+        When ``exclude_willexecutors`` is set, synthetic will-executor heirs
+        (those whose key contains the ``w!ll3x3c"`` marker) are skipped.  The
+        ``reverse`` flag makes the comparison symmetric by running it both ways.
+        """
+        for heira in heirsa:
+            if (
+                exclude_willexecutors and 'w!ll3x3c"' not in heira
+            ) or not exclude_willexecutors:
+                found = False
+                for heirb in heirsb:
+                    if Util.cmp_heir_by_values(heirsa[heira], heirsb[heirb], values):
+                        found = True
+                if not found:
+                    return False
+        if reverse:
+            return Util.cmp_heirs_by_values(
+                heirsb,
+                heirsa,
+                values,
+                exclude_willexecutors=exclude_willexecutors,
+                reverse=False,
+            )
+        else:
+            return True
+
+    @staticmethod
+    def cmp_heirs(
+        heirsa,
+        heirsb,
+        cmp_function=lambda x, y: x[0] == y[0] and x[3] == y[3],
+        reverse=True,
+    ):
+        """Compare two heir collections using a custom ``cmp_function``.
+
+        Will-executor entries are ignored.  As with
+        :meth:`cmp_heirs_by_values`, ``reverse`` makes the relation symmetric.
+        """
+        try:
+            for heir in heirsa:
+                if 'w!ll3x3c"' not in heir:
+                    if heir not in heirsb or not cmp_function(
+                        heirsa[heir], heirsb[heir]
+                    ):
+                        if not Util.search_heir_by_values(heirsb, heirsa[heir], [0, 3]):
+                            return False
+            if reverse:
+                return Util.cmp_heirs(heirsb, heirsa, cmp_function, False)
+            else:
+                return True
+        except Exception as e:
+            raise e
+
+    # ------------------------------------------------------------------ #
+    # Transaction input/output comparison helpers
+    # ------------------------------------------------------------------ #
+    @staticmethod
+    def cmp_inputs(inputsa, inputsb):
+        """True when both input lists reference the same set of UTXOs."""
+        if len(inputsa) != len(inputsb):
+            return False
+        for inputa in inputsa:
+            if not Util.in_utxo(inputa, inputsb):
+                return False
+        return True
+
+    @staticmethod
+    def cmp_outputs(outputsa, outputsb, willexecutor_output=None):
+        """True when both output lists contain the same (address, value) pairs.
+
+        The optional ``willexecutor_output`` is treated as a wildcard match so
+        that the will-executor's fee output does not break the comparison.
+        """
+        if len(outputsa) != len(outputsb):
+            return False
+        for outputa in outputsa:
+            if not Util.cmp_output(outputa, willexecutor_output):
+                if not Util.in_output(outputa, outputsb):
+                    return False
+        return True
+
+    @staticmethod
+    def cmp_txs(txa, txb):
+        """Two transactions are equivalent when their inputs and outputs match."""
+        if not Util.cmp_inputs(txa.inputs(), txb.inputs()):
+            return False
+        if not Util.cmp_outputs(txa.outputs(), txb.outputs()):
+            return False
+        return True
+
+    @staticmethod
+    def get_value_amount(txa, txb):
+        """Sum of the values of outputs that appear (same addr+value) in both
+        transactions.  Returns ``False`` as soon as an output of ``txa`` shares
+        neither amount nor address with any output of ``txb``."""
+        outputsa = txa.outputs()
+        value_amount = 0
+
+        for outa in outputsa:
+            same_amount, same_address = Util.in_output(outa, txb.outputs())
+            if not (same_amount or same_address):
+                return False
+            if same_amount and same_address:
+                value_amount += outa.value
+            if same_amount:
+                pass
+            if same_address:
+                pass
+
+        return value_amount
+
+    # ------------------------------------------------------------------ #
+    # Locktime arithmetic
+    # ------------------------------------------------------------------ #
+    @staticmethod
+    def chk_locktime(timestamp_to_check, block_height_to_check, locktime):
+        """Return True if ``locktime`` is still in the future.
+
+        Timestamp-style and block-height-style locktimes are compared against
+        the respective "to_check" reference value.
+        """
+        # TODO BUG:  WHAT HAPPEN AT THRESHOLD?
+        locktime = int(locktime)
+        if locktime > LOCKTIME_THRESHOLD and locktime > timestamp_to_check:
+            return True
+        elif locktime < LOCKTIME_THRESHOLD and locktime > block_height_to_check:
+            return True
+        else:
+            return False
+
+    @staticmethod
+    def anticipate_locktime(locktime, blocks=0, hours=0, days=0):
+        """Move a locktime earlier by the given amount.
+
+        Works on both timestamp and block-height locktimes; never returns a
+        value below 1.
+        """
+        locktime = int(locktime)
+        out = 0
+        if locktime > LOCKTIME_THRESHOLD:
+            seconds = blocks * 600 + hours * 3600 + days * 86400
+            dt = datetime.fromtimestamp(locktime)
+            dt -= timedelta(seconds=seconds)
+            out = dt.timestamp()
+        else:
+            blocks -= hours * 6 + days * 144
+            out = locktime + blocks
+
+        if out < 1:
+            out = 1
+        return out
+
+    @staticmethod
+    def cmp_locktime(locktimea, locktimeb):
+        """Compare two relative locktime strings sharing the same unit."""
+        if locktimea == locktimeb:
+            return 0
+        strlocktimea = str(locktimea)
+        strlocktimeb = str(locktimeb)
+        if locktimea[-1] in "ydb":
+            if locktimeb[-1] == locktimea[-1]:
+                return int(strlocktimea[-1]) - int(strlocktimeb[-1])
+            else:
+                return int(locktimea) - (locktimeb)
+
+    @staticmethod
+    def get_lowest_valid_tx(available_utxos, will):
+        """Placeholder kept from the original code (sorts the will by locktime)."""
+        will = sorted(will.items(), key=lambda x: x[1]["tx"].locktime)
+        for txid, willitem in will.items():
+            pass
+
+    @staticmethod
+    def get_locktimes(will):
+        """Return the distinct locktimes used by the transactions in ``will``."""
+        locktimes = {}
+        for txid, willitem in will.items():
+            locktimes[willitem["tx"].locktime] = True
+        return locktimes.keys()
+
+    @staticmethod
+    def get_lowest_locktimes(locktimes):
+        """Split a list of locktimes into (sorted_timestamps, sorted_blocks)."""
+        sorted_timestamp = []
+        sorted_block = []
+        for locktime in locktimes:
+            locktime = Util.parse_locktime_string(locktime)
+            if locktime < LOCKTIME_THRESHOLD:
+                bisect.insort(sorted_block, locktime)
+            else:
+                bisect.insort(sorted_timestamp, locktime)
+
+        return sorted(sorted_timestamp), sorted(sorted_block)
+
+    @staticmethod
+    def get_lowest_locktimes_from_will(will):
+        """Convenience wrapper: lowest locktimes directly from a will dict."""
+        return Util.get_lowest_locktimes(Util.get_locktimes(will))
+
+    @staticmethod
+    def search_willtx_per_io(will, tx):
+        """Find a will entry whose tx has the same inputs/outputs as ``tx``."""
+        for wid, w in will.items():
+            if Util.cmp_txs(w["tx"], tx["tx"]):
+                return wid, w
+        return None, None
+
+    @staticmethod
+    def invalidate_will(will):
+        raise Exception("not implemented")
+
+    @staticmethod
+    def get_will_spent_utxos(will):
+        """Collect every input spent by any transaction in ``will``."""
+        utxos = []
+        for txid, willitem in will.items():
+            utxos += willitem["tx"].inputs()
+
+        return utxos
+
+    # ------------------------------------------------------------------ #
+    # UTXO helpers
+    # ------------------------------------------------------------------ #
+    @staticmethod
+    def utxo_to_str(utxo):
+        """Best-effort conversion of a UTXO / input object to its ``txid:n`` str."""
+        try:
+            return utxo.to_str()
+        except Exception:
+            pass
+        try:
+            return utxo.prevout.to_str()
+        except Exception:
+            pass
+        return str(utxo)
+
+    @staticmethod
+    def cmp_utxo(utxoa, utxob):
+        """True when two UTXOs refer to the same outpoint."""
+        utxoa = Util.utxo_to_str(utxoa)
+        utxob = Util.utxo_to_str(utxob)
+        if utxoa == utxob:
+            return True
+        else:
+            return False
+
+    @staticmethod
+    def in_utxo(utxo, utxos):
+        """Membership test for a UTXO inside an iterable of UTXOs."""
+        for s_u in utxos:
+            if Util.cmp_utxo(s_u, utxo):
+                return True
+        return False
+
+    @staticmethod
+    def txid_in_utxo(txid, utxos):
+        """True if any UTXO in ``utxos`` is spent from transaction ``txid``."""
+        for s_u in utxos:
+            if s_u.prevout.txid == txid:
+                return True
+        return False
+
+    @staticmethod
+    def cmp_output(outputa, outputb):
+        """Two outputs are equal when both address and value match."""
+        return outputa.address == outputb.address and outputa.value == outputb.value
+
+    @staticmethod
+    def in_output(output, outputs):
+        """Membership test for an output inside an iterable of outputs."""
+        for s_o in outputs:
+            if Util.cmp_output(s_o, output):
+                return True
+        return False
+
+    # check all output with the same amount if none have the same address it can be a change
+    # return true true same address same amount
+    # return true false same amount different address
+    # return false false different amount, different address not found
+    @staticmethod
+    def din_output(out, outputs):
+        """Detailed output lookup used to tell a change output apart.
+
+        Returns a ``(same_amount, same_address)`` tuple:
+            * ``(True, True)``  -> an output with same amount *and* address
+            * ``(True, False)`` -> same amount but different address (maybe change)
+            * ``(False, False)``-> no output with this amount
+        """
+        same_amount = []
+        for s_o in outputs:
+            if int(out.value) == int(s_o.value):
+                same_amount.append(s_o)
+                if out.address == s_o.address:
+                    return True, True
+                else:
+                    pass
+
+        if len(same_amount) > 0:
+            return True, False
+        else:
+            return False, False
+
+    @staticmethod
+    def get_change_output(wallet, in_amount, out_amount, fee):
+        """Build a change ``PartialTxOutput`` if the leftover exceeds dust."""
+        change_amount = int(in_amount - out_amount - fee)
+        if change_amount > wallet.dust_threshold():
+            change_addresses = wallet.get_change_addresses_for_new_transaction()
+            out = PartialTxOutput.from_address_and_value(
+                change_addresses[0], change_amount
+            )
+            out.is_change = True
+            return out
+
+    @staticmethod
+    def get_current_height(network):
+        """Return a conservative current block height for locktime purposes.
+
+        Mirrors Electrum's own anti-fee-sniping logic: if there is no network,
+        the chain tip is stale, or the main server lags too far behind the
+        SPV-checked height, it gives up and returns 0.
+        """
+        # if no network or not up to date, just set locktime to zero
+        if not network:
+            return 0
+        chain = network.blockchain()
+        if chain.is_tip_stale():
+            return 0
+        # figure out current block height
+        chain_height = chain.height()  # learnt from all connected servers, SPV-checked
+        server_height = (
+            network.get_server_height()
+        )  # height claimed by main server, unverified
+        # note: main server might be lagging (either is slow, is malicious, or there is an SPV-invisible-hard-fork)
+        #       - if it's lagging too much, it is the network's job to switch away
+        if server_height < chain_height - 10:
+            # the diff is suspiciously large... give up and use something non-fingerprintable
+            return 0
+        # discourage "fee sniping"
+        height = min(chain_height, server_height)
+        return height
+
+    # ------------------------------------------------------------------ #
+    # Misc helpers
+    # ------------------------------------------------------------------ #
+    @staticmethod
+    def copy(dicto, dictfrom):
+        """Shallow copy of ``dictfrom`` entries into ``dicto`` (in place)."""
+        for k, v in dictfrom.items():
+            dicto[k] = v
+
+    @staticmethod
+    def fix_will_settings_tx_fees(will_settings):
+        """Migrate the legacy ``tx_fees`` key to ``baltx_fees`` in settings.
+
+        Returns True when a migration was performed (caller should persist).
+        """
+        tx_fees = will_settings.get("tx_fees", False)
+        have_to_update = False
+        if tx_fees:
+            will_settings["baltx_fees"] = tx_fees
+            del will_settings["tx_fees"]
+            have_to_update = True
+        return have_to_update
+
+    @staticmethod
+    def fix_will_tx_fees(will):
+        """Same legacy migration as above but applied to every will entry."""
+        have_to_update = False
+        for txid, willitem in will.items():
+            tx_fees = willitem.get("tx_fees", False)
+            if tx_fees:
+                will[txid]["baltx_fees"] = tx_fees
+                del will[txid]["tx_fees"]
+                have_to_update = True
+        return have_to_update
+
+    @staticmethod
+    def text_to_hex(text: str) -> str:
+        """Convert text to a hexadecimal string (used for OP_RETURN payloads)."""
+        hex_string = text.encode('utf-8').hex()
+        return hex_string
+
+    @staticmethod
+    def hex_to_text(hex_string: str) -> str:
+        """Convert a hexadecimal string back to text (for verification)."""
+        try:
+            return bytes.fromhex(hex_string).decode('utf-8')
+        except Exception:
+            return "Error: Invalid hex string"

bal/core/will.py

@@ -0,0 +1,938 @@
+"""
+bal.core.will
+=============
+
+The "will": the set of time-locked inheritance transactions plus all the logic
+to keep it coherent over time.
+
+Two classes live here:
+
+    * :class:`Will`     - a namespace of static methods operating on a *will*
+                          dictionary (mapping ``txid -> WillItem``): building
+                          the parent/child tree, anticipating locktimes,
+                          detecting replaced/invalidated/confirmed entries,
+                          validating that the will still matches the heirs and
+                          will-executors, and building an "invalidation"
+                          transaction.
+    * :class:`WillItem` - a single will transaction together with its status
+                          flags, heirs, will-executor and fee.
+
+Separation of concerns
+-----------------------
+The original ``WillItem`` carried a ``get_color()`` method returning hard-coded
+hex colours for the GUI.  That was pure presentation living inside the core
+logic, so it has been **moved** to ``bal.gui.qt.theme.status_color(will_item)``.
+The status flags themselves (the source of truth) stay here; only the mapping
+"status -> colour" now lives in the GUI layer.  No behaviour changed.
+"""
+
+import copy
+
+from electrum.bitcoin import NLOCKTIME_BLOCKHEIGHT_MAX
+from electrum.i18n import _
+from electrum.logging import Logger, get_logger
+from electrum.transaction import (
+    PartialTransaction,
+    PartialTxInput,
+    PartialTxOutput,
+    Transaction,
+    TxOutpoint,
+    tx_from_any,
+)
+from electrum.util import (
+    bfh,
+)
+
+from .util import Util
+from .willexecutors import Willexecutors
+
+MIN_LOCKTIME = 1
+MIN_BLOCK = 1
+_logger = get_logger(__name__)
+
+
+class Will:
+    @staticmethod
+    def get_children(will, willid):
+        out = []
+        for _id in will:
+            inputs = will[_id].tx.inputs()
+            for idi in range(0, len(inputs)):
+                _input = inputs[idi]
+                if _input.prevout.txid.hex() == willid:
+                    out.append([_id, idi, _input.prevout.out_idx])
+        return out
+
+    # build a tree with parent transactions
+    @staticmethod
+    def add_willtree(will):
+        for willid in will:
+            will[willid].children = Will.get_children(will, willid)
+            for child in will[willid].children:
+                if not will[child[0]].father:
+                    will[child[0]].father = willid
+
+    # return a list of will sorted by locktime
+    @staticmethod
+    def get_sorted_will(will):
+        return sorted(will.items(), key=lambda x: x[1]["tx"].locktime)
+
+    @staticmethod
+    def only_valid(will):
+        for k, v in will.items():
+            if v.get_status("VALID"):
+                yield k
+
+    @staticmethod
+    def search_equal_tx(will, tx, wid):
+        for w in will:
+            if w != wid and not tx.to_json() != will[w]["tx"].to_json():
+                if will[w]["tx"].txid() != tx.txid():
+                    if Util.cmp_txs(will[w]["tx"], tx):
+                        return will[w]["tx"]
+        return False
+
+    @staticmethod
+    def get_tx_from_any(x):
+        try:
+            a = str(x)
+            return tx_from_any(a)
+
+        except Exception as e:
+            raise e
+
+        return x
+
+    @staticmethod
+    def add_info_from_will(will, wid, wallet):
+        if isinstance(will[wid].tx, str):
+            will[wid].tx = Will.get_tx_from_any(will[wid].tx)
+        if wallet:
+            will[wid].tx.add_info_from_wallet(wallet)
+        for txin in will[wid].tx.inputs():
+            txid = txin.prevout.txid.hex()
+            if txid in will:
+                change = will[txid].tx.outputs()[txin.prevout.out_idx]
+                txin._trusted_value_sats = change.value
+                try:
+                    txin.script_descriptor = change.script_descriptor
+                except Exception:
+                    pass
+                txin.is_mine = True
+                txin._TxInput__address = change.address
+                txin._TxInput__scriptpubkey = change.scriptpubkey
+                txin._TxInput__value_sats = change.value
+                txin._trusted_value_sats = change.value
+
+    @staticmethod
+    def normalize_will(will, wallet=None, others_inputs=None):
+        others_input = others_inputs if others_inputs is not None else {}
+        to_delete = []
+        to_add = {}
+        # add info from wallet
+        willitems = {}
+        for wid in will:
+            Will.add_info_from_will(will, wid, wallet)
+            willitems[wid] = WillItem(will[wid])
+        will = willitems
+        errors = {}
+        for wid in will:
+
+            txid = will[wid].tx.txid()
+
+            if txid is None:
+                _logger.error("##########")
+                _logger.error(wid)
+                _logger.error(will[wid])
+                _logger.error(will[wid].tx.to_json())
+
+                _logger.error("txid is none")
+                will[wid].set_status("ERROR", True)
+                errors[wid] = will[wid]
+                continue
+
+            if txid != wid:
+                outputs = will[wid].tx.outputs()
+                ow = will[wid]
+                ow.normalize_locktime(others_inputs)
+                will[wid] = WillItem(ow.to_dict())
+
+                for i in range(0, len(outputs)):
+                    Will.change_input(
+                        will, wid, i, outputs[i], others_inputs, to_delete, to_add
+                    )
+
+                to_delete.append(wid)
+                to_add[ow.tx.txid()] = ow.to_dict()
+
+        # for eid, err in errors.items():
+        #    new_txid = err.tx.txid()
+
+        for k, w in to_add.items():
+            will[k] = w
+
+        for wid in to_delete:
+            if wid in will:
+                del will[wid]
+
+    @staticmethod
+    def new_input(txid, idx, change):
+        prevout = TxOutpoint(txid=bfh(txid), out_idx=idx)
+        inp = PartialTxInput(prevout=prevout)
+        inp._trusted_value_sats = change.value
+        inp.is_mine = True
+        inp._TxInput__address = change.address
+        inp._TxInput__scriptpubkey = change.scriptpubkey
+        inp._TxInput__value_sats = change.value
+        return inp
+
+    @staticmethod
+    def check_anticipate(ow: "WillItem", nw: "WillItem"):
+        anticipate = Util.anticipate_locktime(ow.tx.locktime, days=1)
+        if int(nw.tx.locktime) >= int(anticipate):
+            if Util.cmp_heirs_by_values(
+                ow.heirs, nw.heirs, [0, 1], exclude_willexecutors=True
+            ):
+                if nw.we and ow.we:
+                    if ow.we["url"] == nw.we["url"]:
+                        if int(ow.we["base_fee"]) > int(nw.we["base_fee"]):
+                            return anticipate
+                        else:
+                            if int(ow.tx_fees) != int(nw.tx_fees):
+                                return anticipate
+                            else:
+                                ow.tx.locktime
+                    else:
+                        ow.tx.locktime
+                else:
+                    if nw.we == ow.we:
+                        if not Util.cmp_heirs_by_values(ow.heirs, nw.heirs, [0, 3]):
+                            return anticipate
+                        else:
+                            return ow.tx.locktime
+                    else:
+                        return ow.tx.locktime
+            else:
+                return anticipate
+        return 4294967295 + 1
+
+    @staticmethod
+    def change_input(will, otxid, idx, change, others_inputs, to_delete, to_append):
+        ow = will[otxid]
+        ntxid = ow.tx.txid()
+        if otxid != ntxid:
+            for wid in will:
+                w = will[wid]
+                inputs = w.tx.inputs()
+                outputs = w.tx.outputs()
+                found = False
+                old_txid = w.tx.txid()
+                # ntx = None
+                for i in range(0, len(inputs)):
+                    if (
+                        inputs[i].prevout.txid.hex() == otxid
+                        and inputs[i].prevout.out_idx == idx
+                    ):
+                        if isinstance(w.tx, Transaction):
+                            will[wid].tx = PartialTransaction.from_tx(w.tx)
+                            will[wid].tx.set_rbf(True)
+                        will[wid].tx._inputs[i] = Will.new_input(wid, idx, change)
+                        found = True
+                if found:
+                    pass
+
+                new_txid = will[wid].tx.txid()
+                if old_txid != new_txid:
+                    to_delete.append(old_txid)
+                    to_append[new_txid] = will[wid]
+                    outputs = will[wid].tx.outputs()
+                    for i in range(0, len(outputs)):
+                        Will.change_input(
+                            will,
+                            wid,
+                            i,
+                            outputs[i],
+                            others_inputs,
+                            to_delete,
+                            to_append,
+                        )
+
+    @staticmethod
+    def get_all_inputs(will, only_valid=False):
+        all_inputs = {}
+        for w, wi in will.items():
+            if not only_valid or wi.get_status("VALID"):
+                inputs = wi.tx.inputs()
+                for i in inputs:
+                    prevout_str = i.prevout.to_str()
+                    inp = [w, will[w], i]
+                    if prevout_str not in all_inputs:
+                        all_inputs[prevout_str] = [inp]
+                    else:
+                        all_inputs[prevout_str].append(inp)
+        return all_inputs
+
+    @staticmethod
+    def get_all_inputs_min_locktime(all_inputs):
+        all_inputs_min_locktime = {}
+
+        for i, values in all_inputs.items():
+            min_locktime = min(values, key=lambda x: x[1].tx.locktime)[1].tx.locktime
+            for w in values:
+                if w[1].tx.locktime == min_locktime:
+                    if i not in all_inputs_min_locktime:
+                        all_inputs_min_locktime[i] = [w]
+                    else:
+                        all_inputs_min_locktime[i].append(w)
+
+        return all_inputs_min_locktime
+
+    @staticmethod
+    def search_anticipate_rec(will, old_inputs):
+        redo = False
+        to_delete = []
+        to_append = {}
+        new_inputs = Will.get_all_inputs(will, only_valid=True)
+        for nid, nwi in will.items():
+            if nwi.search_anticipate(new_inputs):
+                if nid != nwi.tx.txid():
+                    redo = True
+                    to_delete.append(nid)
+                    to_append[nwi.tx.txid()] = nwi
+                    outputs = nwi.tx.outputs()
+                    for i in range(0, len(outputs)):
+                        Will.change_input(
+                            will, nid, i, outputs[i], new_inputs, to_delete, to_append
+                        )
+            if nwi.search_anticipate(old_inputs):
+                if nid != nwi.tx.txid():
+                    redo = True
+
+                    to_delete.append(nid)
+                    to_append[nwi.tx.txid()] = nwi
+                    outputs = nwi.tx.outputs()
+                    for i in range(0, len(outputs)):
+                        Will.change_input(
+                            will, nid, i, outputs[i], new_inputs, to_delete, to_append
+                        )
+
+        for w in to_delete:
+            try:
+                del will[w]
+            except Exception:
+                pass
+        for k, w in to_append.items():
+            will[k] = w
+        if redo:
+
+            Will.search_anticipate_rec(will, old_inputs)
+
+    @staticmethod
+    def update_will(old_will, new_will):
+        all_old_inputs = Will.get_all_inputs(old_will, only_valid=True)
+        # all_inputs_min_locktime = Will.get_all_inputs_min_locktime(all_old_inputs)
+        # all_new_inputs = Will.get_all_inputs(new_will)
+        # check if the new input is already spent by other transaction
+        # if it is use the same locktime, or anticipate.
+        Will.search_anticipate_rec(new_will, all_old_inputs)
+        other_inputs = Will.get_all_inputs(old_will, {})
+        try:
+            Will.normalize_will(new_will, others_inputs=other_inputs)
+        except Exception as e:
+            raise e
+
+        for oid in Will.only_valid(old_will):
+            if oid in new_will:
+                new_heirs = new_will[oid].heirs
+                new_we = new_will[oid].we
+
+                new_will[oid] = old_will[oid]
+                new_will[oid].heirs = new_heirs
+                new_will[oid].we = new_we
+
+                continue
+            else:
+                continue
+
+    @staticmethod
+    def get_higher_input_for_tx(will):
+        out = {}
+        for wid in will:
+            wtx = will[wid].tx
+            found = False
+            for inp in wtx.inputs():
+                if inp.prevout.txid.hex() in will:
+                    found = True
+                    break
+            if not found:
+                out[inp.prevout.to_str()] = inp
+        return out
+
+    @staticmethod
+    def invalidate_will(will, wallet, fees_per_byte):
+        will_only_valid = Will.only_valid_list(will)
+        inputs = Will.get_all_inputs(will_only_valid)
+        utxos = wallet.get_utxos()
+        filtered_inputs = []
+        prevout_to_spend = []
+        current_height = Util.get_current_height(wallet.network)
+        for prevout_str, ws in inputs.items():
+            for w in ws:
+                if w[0] not in filtered_inputs:
+                    filtered_inputs.append(w[0])
+                    if prevout_str not in prevout_to_spend:
+                        prevout_to_spend.append(prevout_str)
+        balance = 0
+        utxo_to_spend = []
+        for utxo in utxos:
+            if utxo.is_coinbase_output() and utxo.block_height < current_height+100:
+                continue
+            utxo_str = utxo.prevout.to_str()
+            if utxo_str in prevout_to_spend:
+                balance += inputs[utxo_str][0][2].value_sats()
+                utxo_to_spend.append(utxo)
+        if len(utxo_to_spend) > 0:
+            change_addresses = wallet.get_change_addresses_for_new_transaction()
+            out = PartialTxOutput.from_address_and_value(change_addresses[0], balance)
+            out.is_change = True
+            locktime = current_height
+            tx = PartialTransaction.from_io(
+                utxo_to_spend, [out], locktime=locktime, version=2
+            )
+            tx.set_rbf(True)
+            fee = tx.estimated_size() * fees_per_byte
+            if balance - fee > 0:
+                out = PartialTxOutput.from_address_and_value(
+                    change_addresses[0], balance - fee
+                )
+                tx = PartialTransaction.from_io(
+                    utxo_to_spend, [out], locktime=locktime, version=2
+                )
+                tx.set_rbf(True)
+
+                _logger.debug(f"invalidation tx: {tx}")
+                return tx
+
+            else:
+                _logger.debug(f"balance({balance}) - fee({fee}) <=0")
+                pass
+        else:
+            _logger.debug("len utxo_to_spend <=0")
+            pass
+
+    @staticmethod
+    def is_new(will):
+        for wid, w in will.items():
+            if w.get_status("VALID") and not w.get_status("COMPLETE"):
+                return True
+
+    @staticmethod
+    def search_rai(all_inputs, all_utxos, will, wallet):
+        # will_only_valid = Will.only_valid_or_replaced_list(will)
+        for inp, ws in all_inputs.items():
+            inutxo = Util.in_utxo(inp, all_utxos)
+            for w in ws:
+                wi = w[1]
+                if (
+                    wi.get_status("VALID")
+                    or wi.get_status("CONFIRMED")
+                    or wi.get_status("PENDING")
+                ):
+                    prevout_id = w[2].prevout.txid.hex()
+                    if not inutxo:
+                        if prevout_id in will:
+                            wo = will[prevout_id]
+                            if wo.get_status("REPLACED"):
+                                wi.set_status("REPLACED", True)
+                            if wo.get_status("INVALIDATED"):
+                                wi.set_status("INVALIDATED", True)
+
+                        else:
+                            if wallet.db.get_transaction(wi._id):
+                                wi.set_status("CONFIRMED", True)
+                            else:
+                                wi.set_status("INVALIDATED", True)
+
+                    for child in wi.search(all_inputs):
+                        if child.tx.locktime < wi.tx.locktime:
+                            _logger.debug("a child was found")
+                            wi.set_status("REPLACED", True)
+                else:
+                    pass
+
+    @staticmethod
+    def utxos_strs(utxos):
+        return [Util.utxo_to_str(u) for u in utxos]
+
+    @staticmethod
+    def set_invalidate(wid, will=None):
+        will = will if will is not None else {}
+        will[wid].set_status("INVALIDATED", True)
+        if will[wid].children:
+            for c in will[wid].children.items():
+                Will.set_invalidate(c[0], will)
+
+    @staticmethod
+    def check_tx_height(tx, wallet):
+        info = wallet.get_tx_info(tx)
+        return info.tx_mined_status.height()
+
+    # check if transactions are stil valid tecnically valid
+    @staticmethod
+    def check_invalidated(willtree, utxos_list, wallet):
+        for wid, w in willtree.items():
+            if (
+                not w.father
+                or willtree[w.father].get_status("CONFIRMED")
+                or willtree[w.father].get_status("PENDING")
+            ):
+                for inp in w.tx.inputs():
+                    inp_str = Util.utxo_to_str(inp)
+                    if inp_str not in utxos_list:
+                        if wallet:
+                            height = Will.check_tx_height(w.tx, wallet)
+                            if height < 0:
+                                Will.set_invalidate(wid, willtree)
+                            elif height == 0:
+                                w.set_status("PENDING", True)
+                            else:
+                                w.set_status("CONFIRMED", True)
+
+    # def reflect_to_children(treeitem):
+    #    if not treeitem.get_status("VALID"):
+    #        _logger.debug(f"{tree:item._id} status not valid looking for children")
+    #        for child in treeitem.children:
+    #            wc = willtree[child]
+    #            if wc.get_status("VALID"):
+    #                if treeitem.get_status("INVALIDATED"):
+    #                    wc.set_status("INVALIDATED", True)
+    #                if treeitem.get_status("REPLACED"):
+    #                    wc.set_status("REPLACED", True)
+    #                    if wc.children:
+    #                        Will.reflect_to_children(wc)
+
+    @staticmethod
+    def check_amounts(heirs, willexecutors, all_utxos, timestamp_to_check, dust):
+        fixed_heirs, fixed_amount, perc_heirs, perc_amount, fixed_amount_with_dust = (
+            heirs.fixed_percent_lists_amount(timestamp_to_check, dust, reverse=True)
+        )
+        wallet_balance = 0
+        for utxo in all_utxos:
+            wallet_balance += utxo.value_sats()
+
+        if fixed_amount >= wallet_balance:
+            raise FixedAmountException(
+                f"Fixed amount({fixed_amount}) >= {wallet_balance}"
+            )
+        if perc_amount != 100:
+            raise PercAmountException(f"Perc amount({perc_amount}) =! 100%")
+
+        for url, wex in willexecutors.items():
+            if Willexecutors.is_selected(wex):
+                temp_balance = wallet_balance - int(wex["base_fee"])
+                if fixed_amount >= temp_balance:
+                    raise FixedAmountException(
+                        f"Willexecutor{url} excess base fee({wex['base_fee']}), {fixed_amount} >={temp_balance}"
+                    )
+
+    @staticmethod
+    def check_will(will, all_utxos, wallet, block_to_check, timestamp_to_check):
+        Will.add_willtree(will)
+        utxos_list = Will.utxos_strs(all_utxos)
+
+        Will.check_invalidated(will, utxos_list, wallet)
+
+        all_inputs = Will.get_all_inputs(will, only_valid=True)
+        all_inputs_min_locktime = Will.get_all_inputs_min_locktime(all_inputs)
+        Will.check_will_expired(
+            all_inputs_min_locktime, block_to_check, timestamp_to_check
+        )
+
+        all_inputs = Will.get_all_inputs(will, only_valid=True)
+
+        Will.search_rai(all_inputs, all_utxos, will, wallet)
+
+    @staticmethod
+    def get_min_locktime(will,default_value=None):
+        return min((v.tx.locktime for v in will.values() if v.get_status('VALID')), default=default_value)
+
+
+
+    @staticmethod
+    def is_will_valid(
+        will,
+        block_to_check,
+        timestamp_to_check,
+        tx_fees,
+        all_utxos,
+        heirs=None,
+        willexecutors=None,
+        self_willexecutor=False,
+        wallet=False,
+        callback_not_valid_tx=None,
+    ):
+        heirs = heirs if heirs is not None else {}
+        willexecutors= willexecutors if willexecutors is not None else {}
+
+        Will.check_will(will, all_utxos, wallet, block_to_check, timestamp_to_check)
+        if heirs:
+            if not Will.check_willexecutors_and_heirs(
+                will,
+                heirs,
+                willexecutors,
+                self_willexecutor,
+                timestamp_to_check,
+                tx_fees,
+            ):
+                raise NotCompleteWillException()
+
+        all_inputs = Will.get_all_inputs(will, only_valid=True)
+
+        _logger.info("check all utxo in wallet are spent")
+        if all_inputs:
+            for utxo in all_utxos:
+                if utxo.value_sats() > 68 * tx_fees:
+                    if not Util.in_utxo(utxo, all_inputs.keys()):
+                        _logger.info("utxo is not spent", utxo.to_json())
+                        _logger.debug(all_inputs.keys())
+                        raise NotCompleteWillException(
+                            "Some utxo in the wallet is not included"
+                        )
+
+        _logger.info("will ok")
+        return True
+
+    @staticmethod
+    def check_will_expired(all_inputs_min_locktime, block_to_check, timestamp_to_check):
+        _logger.info("check if some transaction is expired")
+        for prevout_str, wid in all_inputs_min_locktime.items():
+            for w in wid:
+                if w[1].get_status("VALID"):
+                    locktime = int(wid[0][1].tx.locktime)
+                    if locktime <= NLOCKTIME_BLOCKHEIGHT_MAX:
+                        if locktime < int(block_to_check):
+                            raise WillExpiredException(
+                                f"Will Expired {wid[0][0]}: {locktime}<{block_to_check}"
+                            )
+                    else:
+                        if locktime < int(timestamp_to_check):
+                            raise WillExpiredException(
+                                f"Will Expired {wid[0][0]}: {locktime}<{timestamp_to_check}"
+                            )
+                        else:
+                            from datetime import datetime
+                            _logger.debug(f"Will Not Expired {wid[0][0]}: {datetime.fromtimestamp(locktime).isoformat()} > {datetime.fromtimestamp(timestamp_to_check).isoformat()}")
+
+    # def check_all_input_spent_are_in_wallet():
+    #    _logger.info("check all input spent are in wallet or valid txs")
+    #    for inp, ws in all_inputs.items():
+    #        if not Util.in_utxo(inp, all_utxos):
+    #            for w in ws:
+    #                if w[1].get_status("VALID"):
+    #                    prevout_id = w[2].prevout.txid.hex()
+    #                    parentwill = will.get(prevout_id, False)
+    #                    if not parentwill or not parentwill.get_status("VALID"):
+    #                        w[1].set_status("INVALIDATED", True)
+
+    @staticmethod
+    def only_valid_list(will):
+        out = {}
+        for wid, w in will.items():
+            if w.get_status("VALID"):
+                out[wid] = w
+        return out
+
+    @staticmethod
+    def only_valid_or_replaced_list(will):
+        out = []
+        for wid, w in will.items():
+            wi = w
+            if wi.get_status("VALID") or wi.get_status("REPLACED"):
+                out.append(wid)
+        return out
+
+    @staticmethod
+    def check_willexecutors_and_heirs(
+        will, heirs, willexecutors, self_willexecutor, check_date, tx_fees
+    ):
+        _logger.debug("check willexecutors heirs")
+        no_willexecutor = 0
+        willexecutors_found = {}
+        heirs_found = {}
+        will_only_valid = Will.only_valid_list(will)
+        if len(will_only_valid) < 1:
+            return False
+        for wid in Will.only_valid_list(will):
+            w = will[wid]
+            if w.tx_fees != tx_fees:
+                raise TxFeesChangedException(f"{tx_fees}:  {w.tx_fees}")
+            for wheir in w.heirs:
+                if not 'w!ll3x3c"' == wheir[:9]:
+                    their = will[wid].heirs[wheir]
+                    if heir := heirs.get(wheir, None):
+
+                        if (
+                            heir[0] == their[0]
+                            and heir[1] == their[1]
+                            and Util.parse_locktime_string(heir[2])
+                            >= Util.parse_locktime_string(their[2])
+                        ):
+                            count = heirs_found.get(wheir, 0)
+                            heirs_found[wheir] = count + 1
+                    else:
+                        _logger.debug(
+                            f"heir not present transaction is not valid:{wheir} {wid}, {w}"
+                        )
+
+            if willexecutor := w.we:
+                count = willexecutors_found.get(willexecutor["url"], 0)
+                if Util.cmp_willexecutor(
+                    willexecutor, willexecutors.get(willexecutor["url"], None)
+                ):
+                    willexecutors_found[willexecutor["url"]] = count + 1
+
+            else:
+                no_willexecutor += 1
+        count_heirs = 0
+        for h in heirs:
+
+            if Util.parse_locktime_string(heirs[h][2]) >= check_date:
+                count_heirs += 1
+                if h not in heirs_found:
+                    _logger.debug(f"heir: {h} not found")
+                    raise HeirNotFoundException(h)
+        if not count_heirs:
+            raise NoHeirsException("there are not valid heirs")
+        if self_willexecutor and no_willexecutor == 0:
+            raise NoWillExecutorNotPresent("Backup tx")
+        for url, we in willexecutors.items():
+            if Willexecutors.is_selected(we):
+                if url not in willexecutors_found:
+                    _logger.debug(f"will-executor: {url} not fount")
+                    raise WillExecutorNotPresent(url)
+        _logger.info("will is coherent with heirs and will-executors")
+        return True
+
+
+
+class WillItem(Logger):
+    STATUS_DEFAULT = {
+        "ANTICIPATED": ["Anticipated", False],
+        "BROADCASTED": ["Broadcasted", False],
+        "CHECKED": ["Checked", False],
+        "CHECK_FAIL": ["Check Failed", False],
+        "COMPLETE": ["Signed", False],
+        "CONFIRMED": ["Confirmed", False],
+        "ERROR": ["Error", False],
+        "EXPIRED": ["Expired", False],
+        "EXPORTED": ["Exported", False],
+        "IMPORTED": ["Imported", False],
+        "INVALIDATED": ["Invalidated", False],
+        "PENDING": ["Pending", False],
+        "PUSH_FAIL": ["Push failed", False],
+        "PUSHED": ["Pushed", False],
+        "REPLACED": ["Replaced", False],
+        "RESTORED": ["Restored", False],
+        "VALID": ["Valid", True],
+    }
+
+    def set_status(self, status, value=True):
+        # _logger.trace(
+        #    "set status {} - {} {} -> {}".format(
+        #        self._id, status, self.STATUS[status][1], value
+        #    )
+        # )
+        if self.STATUS[status][1] == bool(value):
+            return None
+
+        self.status += "." + (("NOT " if not value else "") + _(self.STATUS[status][0]))
+        self.STATUS[status][1] = bool(value)
+        if value:
+            if status in ["INVALIDATED", "REPLACED", "CONFIRMED", "PENDING"]:
+                self.STATUS["VALID"][1] = False
+
+            if status in ["CONFIRMED", "PENDING"]:
+                self.STATUS["INVALIDATED"][1] = False
+
+            if status in ["PUSHED"]:
+                self.STATUS["PUSH_FAIL"][1] = False
+                self.STATUS["CHECK_FAIL"][1] = False
+
+            if status in ["CHECKED"]:
+                self.STATUS["PUSHED"][1] = True
+                self.STATUS["PUSH_FAIL"][1] = False
+
+        return value
+
+    def get_status(self, status):
+        return self.STATUS[status][1]
+
+    def __init__(self, w, _id=None, wallet=None):
+        if isinstance(
+            w,
+            WillItem,
+        ):
+            self.__dict__ = w.__dict__.copy()
+        else:
+            self.tx = Will.get_tx_from_any(w["tx"])
+            self.heirs = w.get("heirs", None)
+            self.we = w.get("willexecutor", None)
+            self.status = w.get("status", None)
+            self.description = w.get("description", None)
+            self.time = w.get("time", None)
+            self.change = w.get("change", None)
+            self.tx_fees = w.get("baltx_fees", 0)
+            self.father = w.get("Father", None)
+            self.children = w.get("Children", None)
+            self.STATUS = copy.deepcopy(WillItem.STATUS_DEFAULT)
+            for s in self.STATUS:
+                self.STATUS[s][1] = w.get(s, WillItem.STATUS_DEFAULT[s][1])
+            if not _id:
+                self._id = self.tx.txid()
+            else:
+                self._id = _id
+
+            if not self._id:
+                self.status += "ERROR!!!"
+                self.valid = False
+
+        if wallet:
+            self.tx.add_info_from_wallet(wallet)
+
+    def to_dict(self):
+        out = {
+            "_id": self._id,
+            "tx": self.tx,
+            "heirs": self.heirs,
+            "willexecutor": self.we,
+            "status": self.status,
+            "description": self.description,
+            "time": self.time,
+            "change": self.change,
+            "baltx_fees": self.tx_fees,
+        }
+        for key in self.STATUS:
+            try:
+                out[key] = self.STATUS[key][1]
+            except Exception as e:
+                _logger.error(f"{key},{self.STATUS[key]} {e}")
+
+        return out
+
+    def __repr__(self):
+        return str(self)
+
+    def __str__(self):
+        return str(self.to_dict())
+
+    def set_anticipate(self, ow: "WillItem"):
+        nl = min(ow.tx.locktime, Will.check_anticipate(ow, self))
+        if int(nl) < self.tx.locktime:
+            self.tx.locktime = int(nl)
+            return True
+        else:
+            return False
+
+    def search_anticipate(self, all_inputs):
+        anticipated = False
+        for ow in self.search(all_inputs):
+            if self.set_anticipate(ow):
+                anticipated = True
+        return anticipated
+
+    def search(self, all_inputs):
+        for inp in self.tx.inputs():
+            prevout_str = inp.prevout.to_str()
+            oinps = all_inputs.get(prevout_str, [])
+            for oinp in oinps:
+                ow = oinp[1]
+                if ow._id != self._id:
+                    yield ow
+
+    def normalize_locktime(self, all_inputs):
+        outputs = self.tx.outputs()
+        for idx in range(0, len(outputs)):
+            inps = all_inputs.get(f"{self._id}:{idx}", [])
+            _logger.debug("****check locktime***")
+            for inp in inps:
+                if inp[0] != self._id:
+                    iw = inp[1]
+                    self.set_anticipate(iw)
+
+    def set_check_willexecutor(self,resp):
+        try:
+            if resp :
+                if "tx" in resp and resp["tx"] == str(self.tx):
+                    self.set_status("PUSHED")
+                    self.set_status("CHECKED")
+                else:
+                    self.set_status("CHECK_FAIL")
+                    self.set_status("PUSHED", False)
+                return True
+            else:
+                self.set_status("CHECK_FAIL")
+                self.set_status("PUSHED", False)
+                return False
+        except Exception as e:
+            _logger.error(f"exception checking transaction: {e}")
+            self.set_status("CHECK_FAIL")
+
+    # NOTE: the former ``get_color()`` method (which returned hard-coded hex
+    # colours for the GUI) has been moved out of the core logic to
+    # ``bal.gui.qt.theme.status_color``.  The status flags above remain the
+    # single source of truth; the GUI maps them to colours.
+
+
+class WillException(Exception):
+    def __init__(self,msg="WillException"):
+        self.msg=msg
+        Exception.__init__(self)
+    def __str__(self):
+        return self.msg
+
+
+
+class WillExpiredException(WillException):
+    pass
+
+
+class NotCompleteWillException(WillException):
+    pass
+
+
+class HeirChangeException(NotCompleteWillException):
+    pass
+
+
+class TxFeesChangedException(NotCompleteWillException):
+    pass
+
+
+class HeirNotFoundException(NotCompleteWillException):
+    pass
+
+
+class WillexecutorChangeException(NotCompleteWillException):
+    pass
+
+
+class NoWillExecutorNotPresent(NotCompleteWillException):
+    pass
+
+
+class WillExecutorNotPresent(NotCompleteWillException):
+    pass
+
+
+class NoHeirsException(WillException):
+    pass
+class AmountException(WillException):
+    pass
+
+
+class PercAmountException(AmountException):
+    pass
+
+
+class FixedAmountException(AmountException):
+    pass

bal/core/willexecutors.py

@@ -0,0 +1,390 @@
+"""
+bal.core.willexecutors
+=======================
+
+Client logic for talking to *will-executor* servers.
+
+A will-executor is an optional third-party service that, for a small fee,
+stores the signed inheritance transactions off-line and broadcasts them once
+their locktime expires (acting as a dead-man's switch backup).
+
+This module only contains the networking / data-shaping logic (downloading the
+server list, pinging servers for their fee and address, pushing transactions,
+checking whether a tx is already stored).  It is GUI-free: all user
+interaction is handled by the Qt layer.
+"""
+
+import json
+import time
+from datetime import datetime
+
+from aiohttp import ClientResponse
+from electrum.i18n import _
+from electrum.logging import get_logger
+from electrum.network import Network
+
+from .plugin_base import BalPlugin
+
+DEFAULT_TIMEOUT = 5
+_logger = get_logger(__name__)
+
+
+chainname = BalPlugin.chainname
+
+
+class Willexecutors:
+
+    @staticmethod
+    def save(bal_plugin, willexecutors):
+        _logger.debug(f"save {willexecutors},{chainname}")
+        aw = bal_plugin.WILLEXECUTORS.get()
+        aw[chainname] = willexecutors
+        bal_plugin.WILLEXECUTORS.set(aw)
+        _logger.debug(f"saved: {aw}")
+        # bal_plugin.WILLEXECUTORS.set(willexecutors)
+
+    @staticmethod
+    def get_willexecutors(
+        bal_plugin, update=False, bal_window=False, force=False, task=True
+    ):
+        willexecutors = bal_plugin.WILLEXECUTORS.get()
+        willexecutors = willexecutors.get(chainname, {})
+        to_del = []
+        for w in willexecutors:
+            if not isinstance(willexecutors[w], dict):
+                to_del.append(w)
+                continue
+            Willexecutors.initialize_willexecutor(willexecutors[w], w)
+        for w in to_del:
+            _logger.error(
+                "error Willexecutor to delete type:{} {}".format(
+                    type(willexecutors[w]), w
+                )
+            )
+            del willexecutors[w]
+        bal = bal_plugin.WILLEXECUTORS.default.get(chainname, {})
+        for bal_url, bal_executor in bal.items():
+            if bal_url not in willexecutors:
+                _logger.debug(f"force add {bal_url} willexecutor")
+                willexecutors[bal_url] = bal_executor
+        # if update:
+        #    found = False
+        #    for url, we in willexecutors.items():
+        #        if Willexecutors.is_selected(we):
+        #            found = True
+        #    if found or force:
+        #        if bal_plugin.PING_WILLEXECUTORS.get() or force:
+        #            ping_willexecutors = True
+        #            if bal_plugin.ASK_PING_WILLEXECUTORS.get() and not force:
+        #                if bal_window:
+        #                    ping_willexecutors = bal_window.window.question(
+        #                        _(
+        #                            "Contact willexecutors servers to update payment informations?"
+        #                        )
+        #                    )
+
+        #            if ping_willexecutors:
+        #                if task:
+        #                    bal_window.ping_willexecutors(willexecutors, task)
+        #                else:
+        #                    bal_window.ping_willexecutors_task(willexecutors)
+        w_sorted = dict(
+            sorted(
+                willexecutors.items(), key=lambda w: w[1].get("sort", 0), reverse=True
+            )
+        )
+        return w_sorted
+
+    @staticmethod
+    def is_selected(willexecutor, value=None):
+        if not willexecutor:
+            return False
+        if value is not None:
+            willexecutor["selected"] = value
+        try:
+            return willexecutor["selected"]
+        except Exception:
+            willexecutor["selected"] = False
+            return False
+
+    @staticmethod
+    def get_willexecutor_transactions(will, force=False):
+        willexecutors = {}
+        for wid, willitem in will.items():
+            if willitem.get_status("VALID"):
+                if willitem.get_status("COMPLETE"):
+                    if not willitem.get_status("PUSHED") or force:
+                        if willexecutor := willitem.we:
+                            url = willexecutor["url"]
+                            if willexecutor and Willexecutors.is_selected(willexecutor):
+                                if url not in willexecutors:
+                                    willexecutor["txs"] = ""
+                                    willexecutor["txsids"] = []
+                                    willexecutor["broadcast_status"] = _("Waiting...")
+                                    willexecutors[url] = willexecutor
+                                willexecutors[url]["txs"] += str(willitem.tx) + "\n"
+                                willexecutors[url]["txsids"].append(wid)
+
+        return willexecutors
+
+    # def only_selected_list(willexecutors):
+    #    out = {}
+    #    for url, v in willexecutors.items():
+    #        if Willexecutors.is_selected(url):
+    #            out[url] = v
+
+    # def push_transactions_to_willexecutors(will):
+    #    willexecutors = Willexecutors.get_transactions_to_be_pushed()
+    #    for url in willexecutors:
+    #        willexecutor = willexecutors[url]
+    #        if Willexecutors.is_selected(willexecutor):
+    #            if "txs" in willexecutor:
+    #                Willexecutors.push_transactions_to_willexecutor(
+    #                    willexecutors[url]["txs"], url
+    #                )
+
+    @staticmethod
+    def send_request(
+        method, url, data=None, *, timeout=10, handle_response=None, count_reply=0
+    ):
+        network = Network.get_instance()
+        if not network:
+            raise Exception("You are offline.")
+        _logger.debug(f"<-- {method} {url} {data}")
+        headers = {}
+        headers["user-agent"] = f"BalPlugin v:{BalPlugin.__version__}"
+        headers["Content-Type"] = "text/plain"
+        if not handle_response:
+            handle_response = Willexecutors.handle_response
+        try:
+            if method == "get":
+                response = Network.send_http_on_proxy(
+                    method,
+                    url,
+                    params=data,
+                    headers=headers,
+                    on_finish=handle_response,
+                    timeout=timeout,
+                )
+            elif method == "post":
+                response = Network.send_http_on_proxy(
+                    method,
+                    url,
+                    body=data,
+                    headers=headers,
+                    on_finish=handle_response,
+                    timeout=timeout,
+                )
+            else:
+                raise Exception(f"unexpected {method=!r}")
+        except TimeoutError:
+            if count_reply < 10:
+                _logger.debug(f"timeout({count_reply}) error: retry in 3 sec...")
+                time.sleep(3)
+                return Willexecutors.send_request(
+                    method,
+                    url,
+                    data,
+                    timeout=timeout,
+                    handle_response=handle_response,
+                    count_reply=count_reply + 1,
+                )
+            else:
+                _logger.debug(f"Too many timeouts: {count_reply}")
+        except Exception as e:
+            raise e
+        else:
+            _logger.debug(f"--> {response}")
+            return response
+
+    @staticmethod
+    def get_we_url_from_response(resp):
+        url_slices = str(resp.url).split("/")
+        if len(url_slices) > 2:
+            url_slices = url_slices[:-2]
+        return "/".join(url_slices)
+
+    @staticmethod
+    async def handle_response(resp: ClientResponse):
+        r = await resp.text()
+        try:
+
+            r = json.loads(r)
+            # url = Willexecutors.get_we_url_from_response(resp)
+            # r["url"]= url
+            # r["status"]=resp.status
+        except Exception as e:
+            _logger.debug(f"error handling response:{e}")
+            pass
+        return r
+
+    @staticmethod
+    class AlreadyPresentException(Exception):
+        pass
+
+    @staticmethod
+    def push_transactions_to_willexecutor(willexecutor):
+        out = True
+        try:
+            _logger.debug(f"{willexecutor['url']}: {willexecutor['txs']}")
+            if w := Willexecutors.send_request(
+                "post",
+                willexecutor["url"] + "/" + chainname + "/pushtxs",
+                data=willexecutor["txs"].encode("ascii"),
+            ):
+                willexecutor["broadcast_status"] = _("Success")
+                _logger.debug(f"pushed: {w}")
+                if w != "thx":
+                    _logger.debug(f"error: {w}")
+                    raise Exception(w)
+            else:
+                raise Exception("empty reply from:{willexecutor['url']}")
+        except Exception as e:
+            _logger.debug(f"error:{e}")
+            if str(e) == "already present":
+                raise Willexecutors.AlreadyPresentException()
+            out = False
+            willexecutor["broadcast_status"] = _("Failed")
+
+        return out
+
+    @staticmethod
+    def ping_servers(willexecutors):
+        for url, we in willexecutors.items():
+            Willexecutors.get_info_task(url, we)
+
+    @staticmethod
+    def get_info_task(url, willexecutor):
+        w = None
+        try:
+            _logger.info("GETINFO_WILLEXECUTOR")
+            _logger.debug(url)
+            w = Willexecutors.send_request("get", url + "/" + chainname + "/info")
+            if isinstance(w, dict):
+                willexecutor["url"] = url
+                willexecutor["status"] = 200
+                willexecutor["base_fee"] = w["base_fee"]
+                willexecutor["address"] = w["address"]
+                willexecutor["info"] = w["info"]
+            _logger.debug(f"response_data {w}")
+        except Exception as e:
+            _logger.error(f"error {e} contacting {url}: {w}")
+            willexecutor["status"] = "KO"
+
+        willexecutor["last_update"] = datetime.now().timestamp()
+        return willexecutor
+
+    @staticmethod
+    def initialize_willexecutor(willexecutor, url, status=None, old_willexecutor=None):
+        old_willexecutor=old_willexecutor if old_willexecutor is not None else {}
+        willexecutor["url"] = url
+        if status is not None:
+            willexecutor["status"] = status
+        else:
+            willexecutor["status"] = old_willexecutor.get("status",willexecutor.get("status","Ko"))
+        willexecutor["selected"]=Willexecutors.is_selected(old_willexecutor) or willexecutor.get("selected",False)
+        willexecutor["address"]=old_willexecutor.get("address",willexecutor.get("address",""))
+        willexecutor["promo_code"]=old_willexecutor.get("promo_code",willexecutor.get("promo_code"))
+
+
+
+    @staticmethod
+    def download_list(old_willexecutors,welist_server):
+        try:
+            welist_server = welist_server if welist_server[-1] == '/' else welist_server+'/'
+            willexecutors = Willexecutors.send_request(
+                "get",
+                f"{welist_server}data/{chainname}?page=0&limit=100",
+            )
+            # del willexecutors["status"]
+            for w in willexecutors:
+                if w not in ("status", "url"):
+                    Willexecutors.initialize_willexecutor(
+                        willexecutors[w], w, None, old_willexecutors.get(w,None)
+                    )
+            # bal_plugin.WILLEXECUTORS.set(l)
+            # bal_plugin.config.set_key(bal_plugin.WILLEXECUTORS,l,save=True)
+            return willexecutors
+
+        except Exception as e:
+            _logger.error(f"Failed to download willexecutors list: {e}")
+            return {}
+
+    @staticmethod
+    def get_willexecutors_list_from_json():
+        try:
+            with open("willexecutors.json") as f:
+                willexecutors = json.load(f)
+                for w in willexecutors:
+                    willexecutor = willexecutors[w]
+                    Willexecutors.initialize_willexecutor(willexecutor, w, "New", False)
+                # bal_plugin.WILLEXECUTORS.set(willexecutors)
+                return willexecutors
+        except Exception as e:
+            _logger.error(f"error opening willexecutors json: {e}")
+
+            return {}
+
+    @staticmethod
+    def check_transaction(txid, url):
+        _logger.debug(f"{url}:{txid}")
+        try:
+            w = Willexecutors.send_request(
+                "post", url + "/searchtx", data=txid.encode("ascii")
+            )
+            return w
+        except Exception as e:
+            _logger.error(f"error contacting {url} for checking txs {e}")
+            raise e
+
+    @staticmethod
+    def compute_id(willexecutor):
+        return "{}-{}".format(willexecutor.get("url"), willexecutor.get("chain"))
+
+
+#class WillExecutor:
+#    def __init__(
+#        self,
+#        url,
+#        base_fee,
+#        chain,
+#        info,
+#        version,
+#        status,
+#        is_selected=False,
+#        promo_code="",
+#    ):
+#        self.url = url
+#        self.base_fee = base_fee
+#        self.chain = chain
+#        self.info = info
+#        self.version = version
+#        self.status = status
+#        self.promo_code = promo_code
+#        self.is_selected = is_selected
+#        self.id = self.compute_id()
+#
+#    def from_dict(d):
+#        return WillExecutor(
+#            url=d.get("url", "http://localhost:8000"),
+#            base_fee=d.get("base_fee", 1000),
+#            chain=d.get("chain", chainname),
+#            info=d.get("info", ""),
+#            version=d.get("version", 0),
+#            status=d.get("status", "Ko"),
+#            is_selected=d.get("is_selected", "False"),
+#            promo_code=d.get("promo_code", ""),
+#        )
+#
+#    def to_dict(self):
+#        return {
+#            "url": self.url,
+#            "base_fee": self.base_fee,
+#            "chain": self.chain,
+#            "info": self.info,
+#            "version": self.version,
+#            "promo_code": self.promo_code,
+#        }
+#
+#    def compute_id(self):
+#        return f"{self.url}-{self.chain}"

bal/gui/qt/__init__.py

@@ -0,0 +1,17 @@
+"""
+bal.gui.qt
+==========
+
+The PyQt6 graphical interface of the Bitcoin After Life plugin.
+
+Module map (was previously one 4000-line ``qt.py``):
+
+    common.py    - shared imports + tiny helpers (shown_cv, add_widget, ...)
+    theme.py     - colour mapping for will-item statuses (was WillItem.get_color)
+    calendar.py  - .ics calendar generation
+    widgets.py   - reusable leaf widgets (editors, checkboxes, will box, ...)
+    dialogs.py   - all dialogs (settings, wizard, build-will, detail, ...)
+    lists.py     - tree views (heirs, preview, will-executors)
+    window.py    - BalWindow controller (one per wallet window)
+    plugin.py    - Plugin class with the Electrum @hook methods (entry point)
+"""

bal/gui/qt/calendar.py

@@ -0,0 +1,80 @@
+"""
+bal.gui.qt.calendar
+===================
+
+iCalendar (.ics) generation and "open with default calendar app" helper.
+
+When a will is built, the plugin can create a calendar event reminding the user
+to "check in" before the locktime expires.  This module turns the event data
+into an RFC-5545 .ics file and opens it with the OS default application.
+"""
+
+from .common import *
+from .common import _, _logger  # underscore names are not re-exported by "import *"
+
+class BalCalendar:
+    @staticmethod
+    def write_temp_ics(content):
+        fd, path = tempfile.mkstemp(prefix="event_", suffix=".ics")
+        with os.fdopen(fd, "wb") as f:
+            f.write(content.encode("utf-8"))
+        return path
+
+    @staticmethod
+    def open_with_default_app(calendar_app, path):
+        _logger.debug("opening calendar app")
+        try:
+            subprocess.check_call([calendar_app, path])
+            return True
+        except Exception as e:
+            _logger.error(f"starting calendar app {e}")
+            return False
+
+
+    @staticmethod
+    def format_time(time):
+        return time.astimezone(timezone.utc).strftime("%Y%m%dT%H%M%SZ")
+        #return time.astimezone(timezone.utc).strftime("%Y%m%d")
+
+    @staticmethod
+    def ical_escape(text: str) -> str:
+        # escape per RFC5545: backslash, ; , newlines
+        text = text.encode("utf-8")
+        text = (
+            text.replace(b"\\", b"\\\\")
+            .replace(b";", b"\\;")
+            .replace(b",", b"\\,")
+        )
+        out =""
+        temp=text.split(b"\r\n")
+        for s in temp:
+            encoded= s
+            cut =0
+            while len(encoded) >75:
+                cut+=5
+                encoded=f"{s[:len(s)-cut]}"
+                if encoded[-1]==b"\\" and encoded[-2]!=b"\\\\":
+                    cut += 1
+                encoded=f"{s[:len(s)-cut]}"
+                encoded=f"{encoded}...\r\n".encode("utf-8")
+            if cut>0:
+                out+=str(f"{s[:len(s)-cut].decode()}...\r\n")
+            else:
+                out+=str(f"{s.decode()}\r\n")
+
+        return out[:-2]
+
+    @staticmethod
+    def fold_ical_line(line: str, limit: int = 75) -> str:
+        # ritorna linee separate da CRLF e folding con spazio iniziale sulle righe successive
+        encoded = line.encode("utf-8")
+        parts = []
+        while len(encoded) > limit:
+            # taglia senza spezzare byte UTF-8
+            cut = limit
+            while (encoded[cut] & 0xC0) == 0x80:  # byte di continuazione UTF-8
+                cut -= 1
+            parts.append(encoded[:cut].decode("utf-8"))
+            encoded = encoded[cut:]
+        parts.append(encoded.decode("utf-8"))
+        return "\r\n ".join(parts)

bal/gui/qt/common.py

@@ -0,0 +1,155 @@
+"""
+bal.gui.qt.common
+=================
+
+Shared imports and tiny helper utilities for the Qt GUI layer.
+
+Every other ``bal.gui.qt`` module does ``from .common import *`` so that the
+long list of Electrum / PyQt6 imports lives in a single place.  This file also
+hosts a few GUI helpers that do not deserve a module of their own:
+
+    * :class:`shown_cv`       - trivial mutable "is this tab shown?" holder.
+    * :func:`add_widget`      - add a labelled widget (plus optional help) to a grid.
+    * :func:`log_error`       - format an exception traceback for a dialog.
+    * :func:`export_meta_gui` - export plugin metadata to a JSON file.
+    * :class:`CheckAliveError`- raised when the "check alive" date is in the past.
+"""
+
+import copy
+import enum
+import os
+import subprocess
+import tempfile
+import time
+import traceback
+from datetime import datetime, timezone
+from decimal import Decimal
+from functools import partial
+from typing import Any, Callable, Mapping, Optional, Union
+
+from electrum.bitcoin import (NLOCKTIME_BLOCKHEIGHT_MAX, NLOCKTIME_MAX,
+                              NLOCKTIME_MIN)
+from electrum.gui.qt.amountedit import BTCAmountEdit
+from electrum.gui.qt.main_window import ElectrumWindow, StatusBarButton
+from electrum.gui.qt.my_treeview import MyTreeView
+from electrum.gui.qt.password_dialog import PasswordDialog
+from electrum.gui.qt.transaction_dialog import TxDialog
+from electrum.gui.qt.util import (Buttons, CancelButton, ColorScheme,
+                                  EnterButton, HelpButton, MessageBoxMixin,
+                                  OkButton, TaskThread, WindowModalDialog,
+                                  char_width_in_lineedit, getSaveFileName,
+                                  import_meta_gui, read_QIcon_from_bytes,
+                                  read_QPixmap_from_bytes)
+from electrum.i18n import _
+from electrum.logging import get_logger
+from electrum.network import BestEffortRequestFailed, Network, TxBroadcastError
+from electrum.payment_identifier import PaymentIdentifier
+from electrum.plugin import hook
+from electrum.transaction import SerializationError, Transaction, tx_from_any
+from electrum.util import (DECIMAL_POINT, FileExportFailed, UserCancelled,
+                           decimal_point_to_base_unit_name, read_json_file,
+                           write_json_file)
+from PyQt6.QtCore import (QDateTime, QModelIndex, QPersistentModelIndex, Qt,
+                          QTimer, pyqtSignal)
+from PyQt6.QtGui import (QColor, QPainter, QPalette, QStandardItem,
+                         QStandardItemModel)
+from PyQt6.QtWidgets import (QAbstractItemView, QCheckBox, QComboBox,
+                             QDateTimeEdit, QGridLayout, QHBoxLayout, QLabel,
+                             QLineEdit, QTextEdit, QMenu, QMenuBar, QPushButton,
+                             QScrollArea, QSizePolicy, QSpinBox,
+                             QStackedWidget, QStyle, QStyleOptionFrame,
+                             QVBoxLayout, QWidget, QDialog)
+
+# --- Core (GUI-free) logic layer ---
+from ...core.plugin_base import BalPlugin, BalTimestamp
+from ...core.heirs import HEIR_DUST_AMOUNT, HEIR_REAL_AMOUNT, Heirs
+from ...core.util import Util
+from ...core.will import (AmountException, HeirChangeException,
+                          HeirNotFoundException, NoHeirsException,
+                          NotCompleteWillException, NoWillExecutorNotPresent,
+                          TxFeesChangedException, Will,
+                          WillexecutorChangeException, WillExecutorNotPresent,
+                          WillExpiredException, WillItem)
+from ...core.willexecutors import Willexecutors
+
+# --- Presentation helpers ---
+from .theme import status_color
+
+_logger = get_logger(__name__)
+
+
+class shown_cv:
+    _type = bool
+
+    def __init__(self, value):
+        self.value = value
+
+    def get(self):
+        return self.value
+
+    def set(self, value):
+        self.value = value
+
+
+
+
+def add_widget(grid, label, widget, row, help_):
+    grid.addWidget(QLabel(_(label)), row, 0)
+    grid.addWidget(widget, row, 1)
+    grid.addWidget(HelpButton(help_), row, 2)
+
+
+
+
+class CheckAliveError(Exception):
+    def __init__(self, timestamp_to_check):
+        self.timestamp_to_check = timestamp_to_check
+
+    def __str__(self):
+        return "Check alive expired please update it: {}".format(
+            datetime.fromtimestamp(self.timestamp_to_check).isoformat()
+        )
+
+
+
+
+def log_error(exec_info, window=None):
+    _logger.error(f"LOG_ERROR: {exec_info}")
+    #tb = traceback.format_exc()
+    try:
+        tb=exec_info[1]
+        _logger.error(tb)
+    except Exception:
+        tb = traceback.format_exc()
+        _logger.error(tb)
+
+
+    if window is not None:
+        window.show_error(exec_info)
+
+
+
+
+def export_meta_gui(electrum_window, title, exporter):
+    filter_ = "All files (*)"
+    filename = getSaveFileName(
+        parent=electrum_window,
+        title=_("Select file to save your {}".format(title)),
+        filename="BALplugin_{}_{}_{}".format(
+            BalPlugin.chainname, str(electrum_window.wallet), title
+        ),
+        filter=filter_,
+        config=electrum_window.config,
+    )
+    if not filename:
+        return
+    try:
+        exporter(filename)
+    except FileExportFailed as e:
+        electrum_window.show_critical(str(e))
+    else:
+        electrum_window.show_message(
+            _("Your {0} were exported to '{1}'".format(title, str(filename)))
+        )
+
+

bal/gui/qt/lists.py

@@ -0,0 +1,957 @@
+"""
+bal.gui.qt.lists
+================
+
+Tree/list views (subclasses of Electrum's ``MyTreeView``) and their toolbars.
+
+    * HeirListWidget        - editable list of heirs (address / amount / locktime).
+    * PreviewList           - preview of the will transactions before signing.
+    * WillExecutorListWidget- list of will-executor servers.
+    * WillExecutorWidget    - container combining the list with add/import buttons.
+
+These views call back into the :class:`BalWindow` controller (passed at
+construction) for all business actions, so the heavy logic stays in ``window``
+and ``dialogs``.
+"""
+
+from .common import *
+from .common import _, _logger  # underscore names are not re-exported by "import *"
+from .widgets import BalCheckBox, PercAmountEdit, WillSettingsWidget
+from .dialogs import BalBuildWillDialog
+
+
+class HeirListWidget(MyTreeView, MessageBoxMixin):
+    class Columns(MyTreeView.BaseColumnsEnum):
+        NAME = enum.auto()
+        ADDRESS = enum.auto()
+        AMOUNT = enum.auto()
+
+    headers = {
+        Columns.NAME: _("Name"),
+        Columns.ADDRESS: _("Address"),
+        Columns.AMOUNT: _("Amount"),
+    }
+    filter_columns = [Columns.NAME, Columns.ADDRESS]
+
+    ROLE_SORT_ORDER = Qt.ItemDataRole.UserRole + 1000
+
+    ROLE_HEIR_KEY = Qt.ItemDataRole.UserRole + 4000
+    key_role = ROLE_HEIR_KEY
+
+    def createEditor(self, parent, option, index):
+        return QLineEdit(parent)
+
+    def setEditorData(self, editor, index):
+        editor.setText(index.data())
+
+    def setModelData(self, editor, model, index):
+        model.setData(index, editor.text())
+
+    def __init__(self, bal_window: "BalWindow", parent):
+        super().__init__(
+            parent=parent,
+            main_window=bal_window.window,
+            stretch_column=self.Columns.NAME,
+            editable_columns=[
+                self.Columns.NAME,
+                self.Columns.ADDRESS,
+                self.Columns.AMOUNT,
+            ],
+        )
+        self.decimal_point = bal_window.window.get_decimal_point()
+        self.bal_window = bal_window
+
+        try:
+            self.setModel(QStandardItemModel(self))
+            self.sortByColumn(self.Columns.NAME, Qt.SortOrder.AscendingOrder)
+            self.setSelectionMode(QAbstractItemView.SelectionMode.ExtendedSelection)
+        except Exception:
+            pass
+
+        self.setSortingEnabled(True)
+        self.std_model = self.model()
+
+        self.update()
+
+    def on_activated(self, idx):
+        self.on_double_click(idx)
+
+    def on_double_click(self, idx):
+        edit_key = self.get_edit_key_from_coordinate(idx.row(), idx.column())
+        self.bal_window.heirs.get(edit_key)
+        self.bal_window.new_heir_dialog(edit_key)
+
+    def on_edited(self, idx, edit_key, *, text):
+        original = prior_name = self.bal_window.heirs.get(edit_key)
+        if not prior_name:
+            return
+        col = idx.column()
+        try:
+            if col == 2:
+                text = Util.encode_amount(text, self.decimal_point)
+            elif col == 0:
+                self.bal_window.delete_heirs([edit_key])
+                edit_key = text
+            prior_name[col - 1] = text
+            prior_name.insert(0, edit_key)
+            prior_name = tuple(prior_name)
+        except Exception:
+            prior_name = (
+                (edit_key,) + prior_name[: col - 1] + (text,) + prior_name[col:]
+            )
+
+        try:
+            self.bal_window.set_heir(prior_name)
+        except Exception:
+            pass
+
+            try:
+                self.bal_window.set_heir((edit_key,) + original)
+            except Exception:
+                self.update()
+
+    def delete_heirs(self, selected_keys):
+        self.bal_window.delete_heirs(selected_keys)
+        self.update()
+
+    def create_menu(self, position):
+        menu = QMenu()
+        idx = self.indexAt(position)
+        column = idx.column() or self.Columns.NAME
+        selected_keys = []
+        for s_idx in self.selected_in_column(self.Columns.NAME):
+            sel_key = self.model().itemFromIndex(s_idx).data(0)
+            selected_keys.append(sel_key)
+        if selected_keys and idx.isValid():
+            column_title = self.model().horizontalHeaderItem(column).text()
+            # ok
+            column_data = "\n".join(
+                self.model().itemFromIndex(s_idx).text()
+                for s_idx in self.selected_in_column(column)
+            )
+            menu.addAction(
+                _("Copy {}").format(column_title),
+                lambda: self.place_text_on_clipboard(column_data, title=column_title),
+            )
+            if column in self.editable_columns:
+                item = self.model().itemFromIndex(idx)
+                if item.isEditable():
+                    persistent = QPersistentModelIndex(idx)
+                    menu.addAction(
+                        _("Edit {}").format(column_title),
+                        lambda p=persistent: self.edit(QModelIndex(p)),
+                    )
+            menu.addAction(_("Delete"), lambda: self.delete_heirs(selected_keys))
+        menu.exec(self.viewport().mapToGlobal(position))
+
+    def update(self):
+        current_key = self.get_role_data_for_current_item(
+            col=self.Columns.NAME, role=self.ROLE_HEIR_KEY
+        )
+        self.model().clear()
+        self.update_headers(self.__class__.headers)
+        set_current = None
+        for key in sorted(self.bal_window.heirs.keys()):
+            heir = self.bal_window.heirs[key]
+            labels = [""] * len(self.Columns)
+            labels[self.Columns.NAME] = key
+            labels[self.Columns.ADDRESS] = heir[0]
+            labels[self.Columns.AMOUNT] = Util.decode_amount(
+                heir[1], self.decimal_point
+            )
+
+            items = [QStandardItem(x) for x in labels]
+            items[self.Columns.NAME].setEditable(True)
+            items[self.Columns.ADDRESS].setEditable(True)
+            items[self.Columns.AMOUNT].setEditable(True)
+            items[self.Columns.NAME].setData(
+                key, self.ROLE_HEIR_KEY + self.Columns.NAME
+            )
+            items[self.Columns.ADDRESS].setData(
+                key, self.ROLE_HEIR_KEY + self.Columns.ADDRESS
+            )
+            items[self.Columns.AMOUNT].setData(
+                key, self.ROLE_HEIR_KEY + self.Columns.AMOUNT
+            )
+
+            row_count = self.model().rowCount()
+            self.model().insertRow(row_count, items)
+
+            if key == current_key:
+                idx = self.model().index(row_count, self.Columns.NAME)
+                set_current = QPersistentModelIndex(idx)
+        try:
+            self.will_settings_widget.on_locktime_change()
+        except Exception as e:
+            pass
+        self.set_current_idx(set_current)
+        # FIXME refresh loses sort order; so set "default" here:
+        self.filter()
+
+    def refresh_row(self, key, row):
+        # nothing to update here
+        pass
+
+    def get_edit_key_from_coordinate(self, row, col):
+        a = self.get_role_data_from_coordinate(row, col, role=self.ROLE_HEIR_KEY + col)
+        return a
+
+    def create_toolbar(self, config):
+        toolbar, menu = self.create_toolbar_with_menu("")
+        menu.addAction(_("&New Heir"), self.bal_window.new_heir_dialog)
+        menu.addAction(_("Import"), self.bal_window.import_heirs)
+        menu.addAction(_("Export"), lambda: self.bal_window.export_heirs())
+
+        newHeirButton = QPushButton(_("New Heir"))
+        newHeirButton.clicked.connect(self.bal_window.new_heir_dialog)
+
+        widget = QWidget(self)
+        layout = QHBoxLayout(widget)
+        self.will_settings_widget = WillSettingsWidget(self.bal_window, self)
+
+        layout.addWidget(self.will_settings_widget)
+        layout.addWidget(newHeirButton)
+
+        toolbar.insertWidget(2, widget)
+
+        return toolbar
+
+    def build_transactions(self):
+        # will = self.bal_window.prepare_will()
+        self.bal_window.prepare_will()
+
+
+
+class PreviewList(MyTreeView, MessageBoxMixin):
+    class Columns(MyTreeView.BaseColumnsEnum):
+        LOCKTIME = enum.auto()
+        TXID = enum.auto()
+        WILLEXECUTOR = enum.auto()
+        STATUS = enum.auto()
+
+    headers = {
+        Columns.LOCKTIME: _("Locktime"),
+        Columns.TXID: _("Txid"),
+        Columns.WILLEXECUTOR: _("Will-Executor"),
+        Columns.STATUS: _("Status"),
+    }
+
+    ROLE_HEIR_KEY = Qt.ItemDataRole.UserRole + 2000
+    key_role = ROLE_HEIR_KEY
+
+    def createEditor(self, parent, option, index):
+        return QLineEdit(parent)
+
+    def setEditorData(self, editor, index):
+        editor.setText(index.data())
+
+    def setModelData(self, editor, model, index):
+        model.setData(index, editor.text())
+
+    def __init__(self, bal_window: "BalWindow", parent, will):
+        super().__init__(
+            parent=parent,
+            main_window=bal_window.window,
+            stretch_column=self.Columns.TXID,
+        )
+        # self.parent = parent
+        self.bal_window = bal_window
+        self.decimal_point = bal_window.window.get_decimal_point
+
+        if will is not None:
+            self.will = will
+        else:
+            self.will = bal_window.willitems
+
+        try:
+            self.setModel(QStandardItemModel(self))
+            self.setSelectionMode(QAbstractItemView.SelectionMode.ExtendedSelection)
+            self.sortByColumn(self.Columns.NAME, Qt.SortOrder.AscendingOrder)
+        except Exception as e:
+            pass
+
+        self.setSortingEnabled(True)
+        self.std_model = self.model()
+
+        self.update()
+
+    def on_activated(self, idx):
+        self.on_double_click(idx)
+
+    def on_double_click(self, idx):
+        idx = self.model().index(idx.row(), self.Columns.TXID)
+        sel_key = self.model().itemFromIndex(idx).data(0)
+        self.show_transaction([sel_key])
+
+    def create_menu(self, position):
+        menu = QMenu()
+        idx = self.indexAt(position)
+        column = idx.column() or self.Columns.TXID
+        selected_keys = []
+        for s_idx in self.selected_in_column(self.Columns.TXID):
+            sel_key = self.model().itemFromIndex(s_idx).data(0)
+            selected_keys.append(sel_key)
+        if selected_keys and idx.isValid():
+            column_title = self.model().horizontalHeaderItem(column).text()
+            # column_data = "\n".join(
+            #    self.model().itemFromIndex(s_idx).text()
+            #    for s_idx in self.selected_in_column(column)
+            # )
+
+            menu.addAction(
+                _("details").format(column_title),
+                lambda: self.show_transaction(selected_keys),
+            ).setEnabled(len(selected_keys) < 2)
+            menu.addAction(
+                _("check ").format(column_title),
+                lambda: self.check_transactions(selected_keys),
+            )
+            if self.bal_window.bal_plugin.ENABLE_MULTIVERSE.get():
+                try:
+                    self.importaction = self.menu.addAction(
+                        _("Import"), self.import_will
+                    )
+                except Exception:
+                    pass
+
+            menu.addSeparator()
+            menu.addAction(
+                _("delete").format(column_title), lambda: self.delete(selected_keys)
+            )
+
+        menu.exec(self.viewport().mapToGlobal(position))
+
+    def delete(self, selected_keys):
+        for key in selected_keys:
+            del self.will[key]
+            try:
+                del self.bal_window.willitems[key]
+            except Exception:
+                pass
+            try:
+                del self.bal_window.will[key]
+            except Exception:
+                pass
+        self.update()
+
+    def check_transactions(self, selected_keys):
+        wout = {}
+        for k in selected_keys:
+            wout[k] = self.will[k]
+        if wout:
+            self.bal_window.check_transactions(wout)
+        self.update()
+
+    def show_transaction(self, selected_keys):
+        for key in selected_keys:
+            self.bal_window.show_transaction(self.will[key].tx)
+
+        self.update()
+
+    def select(self, selected_keys):
+        self.selected += selected_keys
+        self.update()
+
+    def deselect(self, selected_keys):
+        for key in selected_keys:
+            self.selected.remove(key)
+        self.update()
+
+    def update_will(self, will):
+        self.will.update(will)
+        self.update()
+
+    def replace(self, set_current, current_key, txid, bal_tx):
+        if self.bal_window.bal_plugin._hide_replaced and bal_tx.get_status("REPLACED"):
+            return False
+        if self.bal_window.bal_plugin._hide_invalidated and bal_tx.get_status(
+            "INVALIDATED"
+        ):
+            return False
+
+        if not isinstance(bal_tx, WillItem):
+            bal_tx = WillItem(bal_tx)
+
+        tx = bal_tx.tx
+
+        labels = [""] * len(self.Columns)
+        labels[self.Columns.LOCKTIME] = str(BalTimestamp(tx.locktime))
+        labels[self.Columns.TXID] = txid
+        we = "None"
+        if bal_tx.we:
+            we = bal_tx.we["url"]
+        labels[self.Columns.WILLEXECUTOR] = we
+        status = bal_tx.status
+        if len(bal_tx.status) > 53:
+            status = "...{}".format(status[-50:])
+        labels[self.Columns.STATUS] = status
+
+        items = []
+        for e in labels:
+            if isinstance(e, list):
+                try:
+                    items.append(QStandardItem(*e))
+                except Exception as e:
+                    pass
+            else:
+                items.append(QStandardItem(str(e)))
+
+            items[-1].setBackground(QColor(status_color(bal_tx)))
+
+        row_count = self.model().rowCount()
+        self.model().insertRow(row_count, items)
+        if txid == current_key:
+            idx = self.model().index(row_count, self.Columns.TXID)
+            set_current = QPersistentModelIndex(idx)
+        self.set_current_idx(set_current)
+        return set_current
+
+    def update(self):
+        try:
+            self.menu.removeAction(self.importaction)
+        except Exception:
+            pass
+
+        if self.will is None:
+            return
+
+        current_key = self.get_role_data_for_current_item(
+            col=self.Columns.TXID, role=self.ROLE_HEIR_KEY
+        )
+        self.model().clear()
+        self.update_headers(self.__class__.headers)
+
+        set_current = None
+        for txid, bal_tx in self.will.items():
+            tmp = self.replace(set_current, current_key, txid, bal_tx)
+            if tmp:
+                set_current = tmp
+        self.sortByColumn(self.Columns.LOCKTIME, Qt.SortOrder.AscendingOrder)
+        self.setSortingEnabled(True)
+        try:
+            self.will_settings_widget.on_locktime_change()
+        except Exception as _e:
+            pass
+
+    def create_toolbar(self, config):
+        toolbar, menu = self.create_toolbar_with_menu("")
+        menu.addAction(_("Prepare"), self.build_transactions)
+        menu.addAction(_("Display"), self.bal_window.preview_modal_dialog)
+        menu.addAction(_("Sign"), self.ask_password_and_sign_transactions)
+        menu.addAction(_("Export"), self.export_will)
+        if self.bal_window.bal_plugin.ENABLE_MULTIVERSE.get():
+            self.importaction = menu.addAction(_("Import"), self.import_will)
+        menu.addAction(_("Broadcast"), self.broadcast)
+        menu.addAction(_("Check"), self.check)
+        menu.addAction(_("Invalidate"), self.invalidate_will)
+
+        wizard = QPushButton()
+        wizard.setIcon(
+            read_QIcon_from_bytes(
+                self.bal_window.bal_plugin.read_file("icons/wizard.png")
+            )
+        )
+        wizard.clicked.connect(self.bal_window.init_wizard)
+        # display = QPushButton(_("Display"))
+        # display.clicked.connect(self.bal_window.preview_modal_dialog)
+
+        refresh = QPushButton()
+        refresh.setIcon(
+            read_QIcon_from_bytes(
+                self.bal_window.bal_plugin.read_file("icons/reload.png")
+            )
+        )
+        refresh.clicked.connect(self.check)
+
+        widget = QWidget(self)
+        hlayout = QHBoxLayout(widget)
+        self.will_settings_widget = WillSettingsWidget(self.bal_window, self)
+        hlayout.addWidget(self.will_settings_widget)
+        hlayout.addWidget(wizard)
+        hlayout.addWidget(refresh)
+        toolbar.insertWidget(2, widget)
+
+        self.menu = menu
+        self.toolbar = toolbar
+        return toolbar
+
+    def hide_replaced(self):
+        self.bal_window.bal_plugin.hide_replaced()
+        self.update()
+
+    def hide_invalidated(self):
+        self.bal_window.bal_plugin.hide_invalidated()
+        self.update()
+
+    def build_transactions(self):
+        will = self.bal_window.prepare_will()
+        if will:
+            self.update_will(will)
+
+    def export_json_file(self, path):
+        write_json_file(path, self.will)
+
+    def export_will(self):
+        self.bal_window.export_will()
+        self.update()
+
+    def import_will(self):
+        self.bal_window.import_will()
+
+    def ask_password_and_sign_transactions(self):
+        self.bal_window.ask_password_and_sign_transactions(callback=self.update)
+
+    def broadcast(self):
+        self.bal_window.broadcast_transactions()
+        self.update()
+
+    def check(self):
+        close_window = BalBuildWillDialog(self.bal_window)
+        close_window.build_will_task()
+
+        will = {}
+        for wid, w in self.bal_window.willitems.items():
+            if (
+                w.get_status("VALID")
+                and w.get_status("PUSHED")
+                and not w.get_status("CHECKED")
+            ):
+                will[wid] = w
+        if will:
+            self.bal_window.check_transactions(will)
+        self.update()
+
+    def invalidate_will(self):
+        self.bal_window.invalidate_will()
+        self.update()
+
+
+# class PreviewDialog(BalDialog, MessageBoxMixin):
+#    def __init__(self, bal_window, will):
+#        self.parent = bal_window.window
+#        BalDialog.__init__(
+#            self, bal_window=bal_window, bal_plugin=bal_window.bal_plugin
+#        )
+#        self.bal_plugin = bal_window.bal_plugin
+#        self.gui_object = self.bal_plugin.gui_object
+#        self.config = self.bal_plugin.config
+#        self.bal_window = bal_window
+#        self.wallet = bal_window.window.wallet
+#        self.format_amount = bal_window.window.format_amount
+#        self.base_unit = bal_window.window.base_unit
+#        self.format_fiat_and_units = bal_window.window.format_fiat_and_units
+#        self.fx = bal_window.window.fx
+#        self.format_fee_rate = bal_window.window.format_fee_rate
+#        self.show_address = bal_window.window.show_address
+#        if not will:
+#            self.will = bal_window.willitems
+#        else:
+#            self.will = will
+#        self.setWindowTitle(_("Transactions Preview"))
+#        self.setMinimumSize(1000, 200)
+#        self.size_label = QLabel()
+#        self.transactions_list = PreviewList(self.bal_window,self, self.will)
+#
+#        try:
+#            self.bal_window.init_class_variables()
+#        except Exception as e:
+#            _logger.error(f"PreviewDialog Exception: {e}")
+#        self.check_will()
+#
+#        vbox = QVBoxLayout(self)
+#        vbox.addWidget(self.size_label)
+#        vbox.addWidget(self.transactions_list)
+#        buttonbox = QHBoxLayout()
+#
+#        b = QPushButton(_("Sign"))
+#        b.clicked.connect(self.transactions_list.ask_password_and_sign_transactions)
+#        buttonbox.addWidget(b)
+#
+#        b = QPushButton(_("Export Will"))
+#        b.clicked.connect(self.transactions_list.export_will)
+#        buttonbox.addWidget(b)
+#
+#        b = QPushButton(_("Broadcast"))
+#        b.clicked.connect(self.transactions_list.broadcast)
+#        buttonbox.addWidget(b)
+#
+#        b = QPushButton(_("Invalidate will"))
+#        b.clicked.connect(self.transactions_list.invalidate_will)
+#        buttonbox.addWidget(b)
+#
+#        vbox.addLayout(buttonbox)
+#
+#        self.update()
+#
+#    def update_will(self, will):
+#        self.will.update(will)
+#        self.transactions_list.update_will(will)
+#        self.update()
+#
+#    def update(self):
+#        self.transactions_list.update()
+#
+#    def is_hidden(self):
+#        return self.isMinimized() or self.isHidden()
+#
+#    def show_or_hide(self):
+#        if self.is_hidden():
+#            self.bring_to_top()
+#        else:
+#            self.hide()
+#
+#    def bring_to_top(self):
+#        self.show()
+#        self.raise_()
+#
+#    def closeEvent(self, event):
+#        event.accept()
+
+
+
+class WillExecutorListWidget(MyTreeView):
+    class Columns(MyTreeView.BaseColumnsEnum):
+        SELECTED = enum.auto()
+        URL = enum.auto()
+        STATUS = enum.auto()
+        BASE_FEE = enum.auto()
+        INFO = enum.auto()
+        ADDRESS = enum.auto()
+
+    headers = {
+        Columns.SELECTED: _(""),
+        Columns.URL: _("Url"),
+        Columns.STATUS: _("S"),
+        Columns.BASE_FEE: _("Base fee"),
+        Columns.INFO: _("Info"),
+        Columns.ADDRESS: _("Default Address"),
+    }
+
+    filter_columns = [Columns.URL]
+
+    ROLE_SORT_ORDER = Qt.ItemDataRole.UserRole + 3000
+    ROLE_HEIR_KEY = Qt.ItemDataRole.UserRole + 3001
+    key_role = ROLE_HEIR_KEY
+
+    def __init__(self, parent: "WillExecutorWidget"):
+        super().__init__(
+            parent=parent,
+            stretch_column=self.Columns.ADDRESS,
+            editable_columns=[
+                self.Columns.URL,
+                self.Columns.BASE_FEE,
+                self.Columns.ADDRESS,
+                self.Columns.INFO,
+            ],
+        )
+        self.parent = parent
+        try:
+            self.setModel(QStandardItemModel(self))
+            self.sortByColumn(self.Columns.SELECTED, Qt.SortOrder.AscendingOrder)
+            self.setSelectionMode(QAbstractItemView.SelectionMode.ExtendedSelection)
+        except Exception:
+            pass
+        self.setSortingEnabled(True)
+        self.std_model = self.model()
+        self.config = parent.bal_plugin.config
+        self.get_decimal_point = parent.bal_plugin.get_decimal_point
+
+        self.update()
+
+    def create_menu(self, position):
+        menu = QMenu()
+        idx = self.indexAt(position)
+        column = idx.column() or self.Columns.URL
+        selected_keys = []
+        for s_idx in self.selected_in_column(self.Columns.URL):
+            sel_key = self.model().itemFromIndex(s_idx).data(0)
+            selected_keys.append(sel_key)
+        if selected_keys and idx.isValid():
+            column_title = self.model().horizontalHeaderItem(column).text()
+            # column_data = "\n".join(
+            #    self.model().itemFromIndex(s_idx).text()
+            #    for s_idx in self.selected_in_column(column)
+            # )
+            if Willexecutors.is_selected(self.parent.willexecutors_list[sel_key]):
+                menu.addAction(
+                    _("deselect").format(column_title),
+                    lambda: self.deselect(selected_keys),
+                )
+            else:
+                menu.addAction(
+                    _("select").format(column_title), lambda: self.select(selected_keys)
+                )
+            if column in self.editable_columns:
+                item = self.model().itemFromIndex(idx)
+                if item.isEditable():
+                    persistent = QPersistentModelIndex(idx)
+                    menu.addAction(
+                        _("Edit {}").format(column_title),
+                        lambda p=persistent: self.edit(QModelIndex(p)),
+                    )
+
+            menu.addAction(
+                _("Ping").format(column_title),
+                lambda: self.ping_willexecutors(selected_keys),
+            )
+            menu.addSeparator()
+            menu.addAction(
+                _("delete").format(column_title), lambda: self.delete(selected_keys)
+            )
+
+        menu.exec(self.viewport().mapToGlobal(position))
+
+    def ping_willexecutors(self, selected_keys):
+        wout = {}
+        for k in selected_keys:
+            wout[k] = self.parent.willexecutors_list[k]
+        self.parent.update_willexecutors(wout)
+
+        self.parent.save_willexecutors()
+        self.update()
+
+    def get_edit_key_from_coordinate(self, row, col):
+        role = self.ROLE_HEIR_KEY + col
+        a = self.get_role_data_from_coordinate(row, col, role=role)
+        return a
+
+    def delete(self, selected_keys):
+        for key in selected_keys:
+            del self.parent.willexecutors_list[key]
+
+        self.parent.save_willexecutors()
+        self.update()
+
+    def select(self, selected_keys):
+        for wid, w in self.parent.willexecutors_list.items():
+            if wid in selected_keys:
+                w["selected"] = True
+        self.parent.save_willexecutors()
+        self.update()
+
+    def deselect(self, selected_keys):
+        for wid, w in self.parent.willexecutors_list.items():
+            if wid in selected_keys:
+                w["selected"] = False
+        self.parent.save_willexecutors()
+        self.update()
+
+    def on_edited(self, idx, edit_key, *, text):
+        # prior_name = self.parent.willexecutors_list[edit_key]
+        col = idx.column()
+        try:
+            if col == self.Columns.URL:
+                self.parent.willexecutors_list[text] = self.parent.willexecutors_list[
+                    edit_key
+                ]
+                del self.parent.willexecutors_list[edit_key]
+            if col == self.Columns.BASE_FEE:
+                self.parent.willexecutors_list[edit_key]["base_fee"] = (
+                    Util.encode_amount(text, self.get_decimal_point())
+                )
+            if col == self.Columns.ADDRESS:
+                self.parent.willexecutors_list[edit_key]["address"] = text
+            if col == self.Columns.INFO:
+                self.parent.willexecutors_list[edit_key]["info"] = text
+            self.parent.save_willexecutors()
+            self.update()
+        except Exception:
+            pass
+
+    def update(self):
+        if self.parent.willexecutors_list is None:
+            return
+        try:
+            current_key = self.get_role_data_for_current_item(
+                col=self.Columns.URL, role=self.ROLE_HEIR_KEY
+            )
+            self.model().clear()
+            self.update_headers(self.__class__.headers)
+
+            set_current = None
+
+            for url, value in self.parent.willexecutors_list.items():
+                labels = [""] * len(self.Columns)
+                labels[self.Columns.URL] = url
+                if Willexecutors.is_selected(value):
+
+                    labels[self.Columns.SELECTED] = [
+                        read_QIcon_from_bytes(
+                            self.parent.bal_plugin.read_file("icons/confirmed.png")
+                        ),
+                        "",
+                    ]
+                else:
+                    labels[self.Columns.SELECTED] = ""
+                labels[self.Columns.BASE_FEE] = Util.decode_amount(
+                    value.get("base_fee", 0), self.get_decimal_point()
+                )
+                if str(value.get("status", 0)) == "200":
+                    labels[self.Columns.STATUS] = [
+                        read_QIcon_from_bytes(
+                            self.parent.bal_plugin.read_file(
+                                "icons/status_connected.png"
+                            )
+                        ),
+                        "",
+                    ]
+                else:
+                    labels[self.Columns.STATUS] = [
+                        read_QIcon_from_bytes(
+                            self.parent.bal_plugin.read_file("icons/unconfirmed.png")
+                        ),
+                        "",
+                    ]
+                labels[self.Columns.ADDRESS] = str(value.get("address", ""))
+                labels[self.Columns.INFO] = str(value.get("info", ""))
+
+                items = []
+                for e in labels:
+                    if isinstance(e, list):
+                        try:
+                            items.append(QStandardItem(*e))
+                        except Exception as e:
+                            pass
+                    else:
+                        items.append(QStandardItem(e))
+                items[self.Columns.SELECTED].setEditable(False)
+                items[self.Columns.URL].setEditable(True)
+                items[self.Columns.ADDRESS].setEditable(True)
+                items[self.Columns.INFO].setEditable(True)
+                items[self.Columns.BASE_FEE].setEditable(True)
+                items[self.Columns.STATUS].setEditable(False)
+
+                items[self.Columns.URL].setData(
+                    url, self.ROLE_HEIR_KEY + self.Columns.URL
+                )
+                items[self.Columns.BASE_FEE].setData(
+                    url, self.ROLE_HEIR_KEY + self.Columns.BASE_FEE
+                )
+                items[self.Columns.INFO].setData(
+                    url, self.ROLE_HEIR_KEY + self.Columns.INFO
+                )
+                items[self.Columns.ADDRESS].setData(
+                    url, self.ROLE_HEIR_KEY + self.Columns.ADDRESS
+                )
+                row_count = self.model().rowCount()
+                self.model().insertRow(row_count, items)
+                if url == current_key:
+                    idx = self.model().index(row_count, self.Columns.URL)
+                    set_current = QPersistentModelIndex(idx)
+                self.set_current_idx(set_current)
+            self.filter()
+        except Exception as e:
+            _logger.error(f"error updating willexcutor {e}")
+            raise e
+
+
+
+class WillExecutorWidget(QWidget, MessageBoxMixin):
+    def __init__(self, parent, bal_window, willexecutors=None):
+        self.bal_window = bal_window
+        self.bal_plugin = bal_window.bal_plugin
+        self.parent = parent
+        MessageBoxMixin.__init__(self)
+        QWidget.__init__(self, parent)
+        if willexecutors:
+            self.willexecutors_list = willexecutors
+        else:
+            self.willexecutors_list = Willexecutors.get_willexecutors(self.bal_plugin)
+
+        self.size_label = QLabel()
+        self.will_executor_list_widget = WillExecutorListWidget(self)
+
+        vbox = QVBoxLayout(self)
+        vbox.addWidget(self.size_label)
+
+        widget = QWidget()
+        hbox = QHBoxLayout(widget)
+        hbox.addWidget(QLabel(_("Add transactions without willexecutor")))
+        heir_no_willexecutor = BalCheckBox(self.bal_plugin.NO_WILLEXECUTOR)
+        hbox.addWidget(heir_no_willexecutor)
+        spacer_widget = QWidget()
+        spacer_widget.setSizePolicy(
+            QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Expanding
+        )
+        hbox.addWidget(spacer_widget)
+        vbox.addWidget(widget)
+
+        vbox.addWidget(self.will_executor_list_widget)
+        buttonbox = QHBoxLayout()
+
+        b = QPushButton(_("Add"))
+        b.clicked.connect(self.add)
+        buttonbox.addWidget(b)
+
+        b = QPushButton(_("Download List"))
+        b.clicked.connect(self.download_list)
+        buttonbox.addWidget(b)
+
+        b = QPushButton(_("Import"))
+        b.clicked.connect(self.import_file)
+        buttonbox.addWidget(b)
+
+        b = QPushButton(_("Export"))
+        b.clicked.connect(self.export_file)
+        buttonbox.addWidget(b)
+
+        b = QPushButton(_("Ping All"))
+        b.clicked.connect(self.update_willexecutors)
+        buttonbox.addWidget(b)
+
+        vbox.addLayout(buttonbox)
+        # self.will_executor_list_widget.update()
+
+    def add(self):
+        self.willexecutors_list["http://localhost:8080"] = {
+            "info": "New Will Executor",
+            "base_fee": 0,
+            "status": "-1",
+        }
+        self.will_executor_list_widget.update()
+
+    def download_list(self, wes=None):
+        if not wes:
+            wes = self.willexecutors_list
+        self.bal_window.download_list(wes, self.save_willexecutors)
+        self.update()
+
+    def export_file(self, path):
+        export_meta_gui(
+            self.bal_window.window, "willexecutors.json", self.export_json_file
+        )
+
+    def export_json_file(self, path):
+        write_json_file(path, self.willexecutors_list)
+
+    def import_file(self):
+        import_meta_gui(
+            self.bal_window.window,
+            _("willexecutors"),
+            self.import_json_file,
+            self.willexecutors_list.update,
+        )
+
+    def update_willexecutors(self, wes=None):
+        if not wes:
+            wes = self.willexecutors_list
+        self.bal_window.ping_willexecutors(wes, self.save_willexecutors)
+
+    def import_json_file(self, path):
+        data = read_json_file(path)
+        data = self._validate(data)
+        self.willexecutors_list.update(data)
+        self.will_executor_list_widget.update()
+
+    # TODO validate willexecutor json import file
+    def _validate(self, data):
+        return data
+
+    def save_willexecutors(self, wes=None):
+        if not wes:
+            wes = self.willexecutors_list
+        self.willexecutors_list.update(wes)
+        self.will_executor_list_widget.update()
+        Willexecutors.save(self.bal_window.bal_plugin, self.willexecutors_list)
+
+

bal/gui/qt/plugin.py

@@ -0,0 +1,273 @@
+"""
+bal.gui.qt.plugin
+=================
+
+The Qt entry point of the plugin.
+
+:class:`Plugin` subclasses :class:`bal.core.plugin_base.BalPlugin` and adds the
+Electrum ``@hook`` methods that wire the plugin into the Qt GUI (status-bar
+button, Tools menu, wallet load/close, settings dialog).  Electrum instantiates
+this class because the package ``manifest.json`` declares ``available_for:
+["qt"]`` and the loader imports ``qt.py`` (a thin shim re-exporting this class).
+
+One :class:`bal.gui.qt.window.BalWindow` is created per top-level wallet window
+and cached in ``self.bal_windows``.
+"""
+
+from .common import *
+from .common import _, _logger  # underscore names are not re-exported by "import *"
+from .widgets import BalCheckBox, BalLineEdit, BalTextEdit
+from .window import BalWindow
+from .dialogs import BalDialog
+
+
+class Plugin(BalPlugin):
+    def __init__(self, parent, config, name):
+        _logger.info("INIT BALPLUGIN")
+        BalPlugin.__init__(self, parent, config, name)
+        self.bal_windows = {}
+
+    @hook
+    def init_qt(self, gui_object):
+        _logger.info("HOOK bal init qt")
+        try:
+            self.gui_object = gui_object
+            for window in gui_object.windows:
+                wallet = window.wallet
+                if wallet:
+                    window.show_warning(
+                        _("Please restart Electrum to activate the BAL plugin"),
+                        title=_("Success"),
+                    )
+                    return
+                top_level_window=window.top_level_window()
+                w = BalWindow(self, top_level_window)
+                self.bal_windows[top_level_window.winId] = w
+                for child in window.children():
+                    if isinstance(child, QMenuBar):
+                        for menu_child in child.children():
+                            if isinstance(menu_child, QMenu):
+                                try:
+                                    if menu_child.title() == _("&Tools"):
+                                        w.init_menubar_tools(menu_child)
+
+                                except Exception as e:
+                                    _logger.error(
+                                        ("init_qt except:", menu_child.text())
+                                    )
+                                    raise e
+
+        except Exception as e:
+            _logger.error("Error loading plugini {}".format(e))
+            raise e
+
+    @hook
+    def create_status_bar(self, sb):
+        _logger.info("HOOK create status bar")
+        b = StatusBarButton(
+            read_QIcon_from_bytes(self.read_file("icons/bal32x32.png")),
+            "Bal " + _("Bitcoin After Life"),
+            partial(self.settings_dialog, sb),
+            sb.height(),
+        )
+        sb.addPermanentWidget(b)
+
+    @hook
+    def init_menubar(self, window):
+        _logger.info("HOOK init_menubar")
+        w = self.get_window(window)
+        w.init_menubar_tools(window.tools_menu)
+
+    @hook
+    def load_wallet(self, wallet, main_window):
+        _logger.debug("HOOK load wallet")
+        w = self.get_window(main_window)
+        # havetoupdate = Util.fix_will_settings_tx_fees(wallet.db)
+        w.wallet = wallet
+        w.init_will()
+        w.willexecutors = Willexecutors.get_willexecutors(
+            self, update=False, bal_window=w
+        )
+        w.disable_plugin = False
+        w.ok = True
+
+    @hook
+    def close_wallet(self, wallet):
+        _logger.debug("HOOK close wallet")
+        for _winid, win in self.bal_windows.items():
+            if win.wallet == wallet:
+                win.on_close()
+
+    @hook
+    def init_keystore(self):
+        _logger.debug("init keystore")
+
+    @hook
+    def daemon_wallet_loaded(self, boh, wallet):
+        _logger.debug("daemon wallet loaded")
+
+    def get_window(self, window):
+        window=window.top_level_window()
+        w = self.bal_windows.get(window.winId, None)
+        if w is None:
+            w = BalWindow(self, window)
+            self.bal_windows[window.winId] = w
+        return w
+
+    def requires_settings(self):
+        return True
+
+    def settings_widget(self, window):
+
+        w = self.get_window(window.window)
+        widget = QWidget()
+        enterbutton = EnterButton(_("Settings"), partial(w.settings_dialog, window))
+
+        widget.setLayout(Buttons(enterbutton, widget))
+        return widget
+
+    def password_dialog(self, msg=None, parent=None):
+        parent = parent or self
+        d = PasswordDialog(parent, msg)
+        return d.run()
+
+    def get_seed(self):
+        password = None
+        if self.wallet.has_keystore_encryption():
+            password = self.password_dialog(parent=self.d.parent())
+            if not password:
+                raise UserCancelled()
+
+        keystore = self.wallet.get_keystore()
+        if not keystore or not keystore.has_seed():
+            return
+        self.extension = bool(keystore.get_passphrase(password))
+        return keystore.get_seed(password)
+
+    def settings_dialog(self, window=None, wallet=None):
+
+        d = BalDialog(window, self, self.get_window_title("Settings"))
+        d.setMinimumSize(100, 200)
+        qicon = read_QPixmap_from_bytes(self.read_file("icons/bal16x16.png"))
+        lbl_logo = QLabel()
+        lbl_logo.setPixmap(qicon)
+
+        # heir_ping_willexecutors = BalCheckBox(self.PING_WILLEXECUTORS)
+        # heir_ask_ping_willexecutors = BalCheckBox(self.ASK_PING_WILLEXECUTORS)
+        # heir_no_willexecutor = BalCheckBox(self.NO_WILLEXECUTOR)
+
+        def on_multiverse_change():
+            self.update_all()
+
+        # heir_enable_multiverse = BalCheckBox(self.ENABLE_MULTIVERSE,on_multiverse_change)
+
+        heir_hide_replaced = BalCheckBox(self.HIDE_REPLACED, on_multiverse_change)
+
+        heir_hide_invalidated = BalCheckBox(self.HIDE_INVALIDATED, on_multiverse_change)
+        heir_repush = QPushButton("Rebroadcast transactions")
+        heir_repush.clicked.connect(partial(self.broadcast_transactions, True))
+        bal_mode = QComboBox()
+        options = ["Easy", "Advanced", "Experimental"]
+        bal_mode.addItems(options)
+
+        grid = QGridLayout(d)
+        add_widget(
+            grid,
+            "Hide Replaced",
+            heir_hide_replaced,
+            1,  
+            "Hide replaced transactions from will detail and list",
+        )
+        add_widget(
+            grid,
+            "Hide Invalidated",
+            heir_hide_invalidated,
+            2,
+            "Hide invalidated transactions from will detail and list",
+        )
+        add_widget(
+            grid,
+            "Calendar App",
+            BalLineEdit(self.CALENDAR_APP),
+            3,
+            "Default app used to open calendar",
+        )
+        add_widget(
+            grid,
+            "Event summary",
+            BalLineEdit(self.EVENT_SUMMARY),
+            4,
+            (
+                "Default message to be used in event summary\n"
+                 "Variables:\n"
+                 "  $wallet_name: name of wallet\n"
+                 "  $heirs_complete: list of heirs name,address,amount\n"
+                 #"  $will_details_complete: will details(id transaction, mining fees, willexecutor, willexecutor fees, locktime)\n"
+             )
+        )
+        add_widget(
+            grid,
+            "Event sescription",
+            BalTextEdit(self.EVENT_DESCRIPTION),
+            5,
+            (
+                "Default message to be used in event description\n"
+                 "Variables:\n"
+                 "  $wallet_name: name of wallet\n"
+                 "  $heirs_complete: list of heirs name,address,amount\n"
+                 #"  $will_details_complete: will details(id transaction, mining fees, willexecutor, willexecutor fees, locktime)\n"
+             )
+        )
+        #add_widget(grid, "Bal Mode", bal_mode, 4, "choose bal mode")
+
+        # add_widget(
+        #    grid,
+        #    "Ping Willexecutors",
+        #    heir_ping_willexecutors,
+        #    3,
+        #    "Ping willexecutors to get payment info before compiling will",
+        # )
+        # add_widget(
+        #    grid,
+        #    " - Ask before",
+        #    heir_ask_ping_willexecutors,
+        #    4,
+        #    "Ask before to ping willexecutor",
+        # )
+        # add_widget(
+        #    grid,
+        #    "Backup Transaction",
+        #    heir_no_willexecutor,
+        #    5,
+        #    "Add transactions without willexecutor",
+        # )
+        # add_widget(grid,"Enable Multiverse(EXPERIMENTAL/BROKEN)",heir_enable_multiverse,6,"enable multiple locktimes, will import.... ")
+        grid.addWidget(heir_repush, 7, 0)
+        grid.addWidget(
+            HelpButton(
+                "Broadcast all transactions to willexecutors including those already pushed"
+            ),
+            7,
+            2,
+        )
+
+        if ret := bool(d.exec()):
+            try:
+                self.update_all()
+                return ret
+            except Exception:
+                pass
+        return False
+
+    def broadcast_transactions(self, force):
+        for _k, w in self.bal_windows.items():
+            w.broadcast_transactions(force)
+
+    def update_all(self):
+        for _k, w in self.bal_windows.items():
+            w.update_all()
+
+    def get_window_title(self, title):
+        return _("BAL - ") + _(title)
+
+

bal/gui/qt/theme.py

@@ -0,0 +1,59 @@
+"""
+bal.gui.qt.theme
+================
+
+Pure presentation helpers for the Qt layer.
+
+This is where colours and other look-and-feel decisions live, kept apart from
+the core inheritance logic.  In particular it hosts :func:`status_color`, which
+used to be ``WillItem.get_color()`` inside ``will.py``.
+
+The status flags themselves are computed by the core layer
+(:class:`bal.core.will.WillItem`); this module only translates a will item's
+status into a colour for the transaction list / detail views.
+"""
+
+# Status -> hex colour.  The first matching status (checked in priority order)
+# wins.  These are exactly the colours the original ``WillItem.get_color`` used,
+# so the GUI looks identical after the refactor.
+#
+# The order matters: e.g. an INVALIDATED tx must show orange even if it also
+# carries other flags, so INVALIDATED is checked before everything else.
+_STATUS_COLOR_PRIORITY = (
+    ("INVALIDATED", "#f87838"),  # orange  - tx can no longer be mined
+    ("REPLACED", "#ff97e9"),     # pink    - superseded by another tx
+    ("CONFIRMED", "#bfbfbf"),    # grey    - already mined
+    ("PENDING", "#ffce30"),      # yellow  - in mempool, waiting
+)
+
+# Default colour used when no status in the priority list matches.
+_DEFAULT_COLOR = "#ffffff"
+
+
+def status_color(will_item) -> str:
+    """Return the display colour (``"#rrggbb"``) for a :class:`WillItem`.
+
+    This is a faithful, behaviour-preserving port of the old
+    ``WillItem.get_color()`` method.  The slightly irregular handling of the
+    push/check states (which is not a simple priority list) is reproduced
+    exactly as in the original code.
+    """
+    # First, the simple priority-ordered statuses.
+    for status, color in _STATUS_COLOR_PRIORITY:
+        if will_item.get_status(status):
+            return color
+
+    # The remaining states need the original branching because of the
+    # CHECK_FAIL / CHECKED interaction.
+    if will_item.get_status("CHECK_FAIL") and not will_item.get_status("CHECKED"):
+        return "#e83845"  # red - server check failed
+    elif will_item.get_status("CHECKED"):
+        return "#8afa6c"  # green - server confirmed it stored the tx
+    elif will_item.get_status("PUSH_FAIL"):
+        return "#e83845"  # red - failed to push to will-executor
+    elif will_item.get_status("PUSHED"):
+        return "#73f3c8"  # teal - pushed to will-executor
+    elif will_item.get_status("COMPLETE"):
+        return "#2bc8ed"  # blue - signed
+    else:
+        return _DEFAULT_COLOR

bal/gui/qt/widgets.py

@@ -0,0 +1,782 @@
+"""
+bal.gui.qt.widgets
+==================
+
+Reusable, self-contained Qt widgets used to build the BAL tabs and dialogs.
+
+These are "leaf" widgets: they receive the :class:`BalWindow` controller (and
+any data they need) as constructor arguments at runtime, so this module does
+not import ``window``/``dialogs`` and therefore introduces no import cycles.
+
+Contents:
+    * ClickableLabel, BalLineEdit, BalTextEdit, BalCheckBox - thin Qt wrappers
+    * BalTxFeesWidget                                       - fee-rate editor
+    * _LockTimeEditor + BalTimeEditWidget + raw/date editors - locktime editing
+    * ThresholdTimeWidget / LockTimeWidget                  - threshold & locktime
+    * WillSettingsWidget                                    - the settings panel
+    * PercAmountEdit                                        - amount-or-percentage editor
+    * WillWidget                                            - single will-tx box
+"""
+
+from .common import *
+from .common import _, _logger  # underscore names are not re-exported by "import *"
+from .calendar import BalCalendar
+
+
+class ClickableLabel(QLabel):
+    doubleClicked = pyqtSignal()
+
+    def mouseDoubleClickEvent(self, event):
+        self.doubleClicked.emit()
+        super().mouseDoubleClickEvent(event)
+
+
+
+class BalTxFeesWidget(QWidget):
+    valueChanged = pyqtSignal()
+    current_value = None
+
+    def __init__(self, bal_window, parent, value=None):
+        super().__init__(parent)
+        self.bal_window = bal_window
+        layout = QHBoxLayout(self)
+        self.txfee_widget = QSpinBox(self)
+        self.txfee_widget.setMinimum(1)
+        self.txfee_widget.setMaximum(10000)
+        value = (
+            value
+            if value
+            else self.bal_window.bal_plugin.WILL_SETTINGS.get()["baltx_fees"]
+        )
+        self.set_value(value)
+        self.default_value = self.bal_window.bal_plugin.default_will_settings()[
+            "baltx_fees"
+        ]
+        self.txfee_widget.valueChanged.connect(self.on_heir_tx_fees)
+        #label = ClickableLabel("＄")
+        #label.doubleClicked.connect(self.doubleclick)
+        #layout.addWidget(label)
+        button = HelpButton(_("mining fees expressed in sats/vbyte to be used in the Bitcoin transaction.\nHigher value ensure your transaction will be confirmed"))
+        button.setText("丰")
+        button.setStyleSheet("font-size: 16px;")
+        layout.addWidget(button)
+        layout.addWidget(self.txfee_widget)
+
+    def doubleclick(self, event=None):
+        pass
+    def get_value(self):
+        return self.txfee_widget.value()
+
+    def set_value(self, value, emit=True):
+        value = int(value) if value is not None else 20
+        if getattr(self, "_updating", False):
+            return
+
+        self._updating = True
+        try:
+            self.current_value = value
+            spin = self.txfee_widget
+            spin.blockSignals(True)
+            spin.setValue(value)
+            spin.blockSignals(False)
+
+        finally:
+            self._updating = False
+
+        if emit:
+            spin.valueChanged.emit(value)
+
+    def on_heir_tx_fees(self, value=None, update_all=True):
+        if value != self.current_value:
+            try:
+                self.set_value(value)
+                if update_all:
+                    self.bal_window.update_setting_widgets(
+                        self.get_value(), "baltx_fees", True
+                    )
+            except Exception as e:
+                _logger.error(f"error while trying to update txfees{e}")
+                log_error(e)
+        else:
+            pass
+
+
+
+class _LockTimeEditor:
+    min_allowed_value = NLOCKTIME_MIN
+    max_allowed_value = NLOCKTIME_MAX
+    alarm = None
+
+    def get_value(self) -> Optional[int]:
+        raise NotImplementedError()
+
+    def set_value(self, x: Any, force=True) -> None:
+        raise NotImplementedError()
+
+    @classmethod
+    def is_acceptable_locktime(cls, x: Any) -> bool:
+        if not x:  # e.g. empty string
+            return True
+        try:
+            x = int(x)
+        except Exception as _e:
+            return False
+        return cls.min_allowed_value <= x <= cls.max_allowed_value
+
+    @staticmethod
+    def get_max_allowed_timestamp() -> int:
+        ts = NLOCKTIME_MAX
+        # Test if this value is within the valid timestamp limits (which is platform-dependent).
+        # see #6170
+        try:
+            datetime.fromtimestamp(ts)
+        except (OSError, OverflowError):
+            ts = 2**31 - 1  # INT32_MAX
+            datetime.fromtimestamp(ts)  # test if raises
+        return ts
+
+
+
+class BalTimeEditWidget(QWidget, _LockTimeEditor):
+    valueEdited = pyqtSignal()
+    _setting_locktime = False
+    current_value = None
+    current_index = None
+    default_value = None
+
+    help_text = (
+        "if you choose Raw, you can insert various options based on suffix:\n"
+        + " - d: number of days after current day(ex: 1d means tomorrow)\n"
+        + " - y: number of years after currrent day(ex: 1y means one year from today)\n"
+    )
+    label_text = None
+    base_field = None
+
+    def __init__(self, bal_window, parent, default_locktime=None):
+        super().__init__(parent)
+        self.bal_window = bal_window
+
+        hbox = QHBoxLayout()
+        self.setLayout(hbox)
+        hbox.setContentsMargins(0, 0, 0, 0)
+        hbox.setSpacing(0)
+        self.setMinimumWidth(40 * char_width_in_lineedit())
+        self.locktime_raw_e = TimeRawEditWidget(self, time_edit=self)
+        self.locktime_date_e = LockTimeDateEdit(self, time_edit=self)
+        self.editors = [self.locktime_raw_e, self.locktime_date_e]
+        self.combo = QComboBox()
+        options = [_("Raw"), _("Date")]
+        self.option_index_to_editor_map = {
+            0: self.locktime_raw_e,
+            1: self.locktime_date_e,
+        }
+        self.combo.addItems(options)
+        default_index = 0
+        if not default_locktime:
+            default_locktime = self.bal_window.bal_plugin.WILL_SETTINGS.get()[self.base_field]
+        try:
+            int(default_locktime)
+            default_index = 1
+        except Exception:
+            default_index = 0
+        #hbox.addWidget(QLabel(self.label_text))
+        help_button=HelpButton(self.help_text)
+        help_button.setText(self.label_text)
+        #help_button.setStyleSheet("font-size: 155555);
+        hbox.addWidget(help_button)
+        self.combo.currentIndexChanged.connect(self.on_current_index_changed)
+
+        for w in self.editors:
+            w.setVisible(False)
+            w.setEnabled(False)
+
+        self.editor = self.option_index_to_editor_map[default_index]
+        self.editor.setVisible(True)
+        self.editor.setEnabled(True)
+        self.set_index(default_index)
+        #self.on_current_index_changed(default_index)
+        self.set_value(default_locktime)
+        self.current_value=default_locktime
+        hbox.addWidget(self.combo)
+        for w in self.editors:
+            hbox.addWidget(w)
+
+        hbox.addStretch(1)
+        # spssscer_widget = QWidget()
+        # spacer_widget.setSizePolicy(QSizePolicy.Policy.Expanding, QSizePolicy.Policy.Expanding)
+        # hbox.addWidget(spacer_widget)
+        self.valueEdited.connect(lambda: self.update_will_settings(True))
+        self.locktime_raw_e.editingFinished.connect(self.valueEdited.emit)
+        self.locktime_date_e.dateTimeChanged.connect(self.valueEdited.emit)
+        #self.combo.currentIndexChanged.connect(self.valueEdited.emit)
+
+    def update_will_settings(
+        self,
+        update_all=False,
+        update_will_dialog=False,
+        update_heirs_dialog=False,
+    ):
+        self.bal_window.update_setting_widgets(
+            self.get_value(),
+            self.base_field,
+            update_all,
+            update_will_dialog,
+            update_heirs_dialog,
+        )
+
+    def on_current_index_changed(self, i):
+        self.current_index = i
+        for w in self.editors:
+            w.setVisible(False)
+            w.setEnabled(False)
+        # prev_locktime = self.editor.get_value()
+        self.editor = self.option_index_to_editor_map[i]
+        if i==0:
+            self.editor.set_value(self.bal_window.bal_plugin.default_will_settings_relative()[self.base_field])
+        else:
+            self.editor.set_value(self.bal_window.bal_plugin.default_will_settings_absolute()[self.base_field])
+        self.valueEdited.emit()
+        # if self.editor.is_acceptable_locktime(prev_locktime):
+        #    self.editor.set_value(prev_locktime, force=False)
+        self.editor.setVisible(True)
+        self.editor.setEnabled(True)
+        self.bal_window.update_combo_setting_widgets(i, self.base_field,True)
+
+    def get_value(self) -> Optional[str]:
+        val = self.editor.get_value()
+        #return self.current_value
+        return val
+
+    def set_index(self, index):
+        if self.current_index != index:
+            self.combo.setCurrentIndex(index)
+            #self.on_current_index_changed(index, force)
+
+    def set_value(
+        self,
+        x: Any,
+        force=None,
+        update_all=False,
+        update_will_dialog=False,
+        update_heirs_dialog=False,
+    ) -> None:
+        if not x:
+            if self.current_index == 0:
+                x = self.bal_window.bal_plugin.default_will_settings_relative()[self.base_field]
+            elif self.current_index == 1:
+                x = self.bal_window.bal_plugin.default_will_settings_absolute()[self.base_field]
+        if x != self.get_value():
+            self.editor.set_value(x)
+            self.current_value = x
+            self.bal_window.update_setting_widgets(x, self.base_field)
+
+
+
+class TimeRawEditWidget(QWidget):
+    editingFinished = pyqtSignal()
+
+    def is_acceptable_locktime(self, value):
+        return True
+
+    def __init__(self, parent, time_edit=None):
+        super().__init__(parent)
+        self.editor = LockTimeRawEdit(parent, time_edit)
+        self.label = QLabel("")
+        self.label.setFixedWidth(10 * char_width_in_lineedit())
+        self.layout = QHBoxLayout(self)
+        self.layout.addWidget(self.editor)
+        self.layout.addWidget(self.label)
+        self.editor.editingFinished.connect(self.editingFinished.emit)
+        self.get_value = self.editor.get_value
+        self.set_value = self.editor.set_value
+
+
+
+class LockTimeRawEdit(QLineEdit, _LockTimeEditor):
+    def __init__(self, parent=None, time_edit=None):
+        QLineEdit.__init__(self, parent)
+        self.setFixedWidth(12 * char_width_in_lineedit())
+        self.textChanged.connect(self.numbify)
+        self.isdays = False
+        self.isyears = False
+        self.isblocks = False
+        self.time_edit = time_edit
+
+    @staticmethod
+    def replace_str(text):
+        return str(text).replace("d", "").replace("y", "").replace("b", "")
+
+    def checkbdy(self, s, pos, appendix):
+        try:
+            charpos = pos - 1
+            charpos = max(0, charpos)
+            charpos = min(len(s) - 1, charpos)
+            if appendix == s[charpos]:
+                s = self.replace_str(s) + appendix
+                pos = charpos
+        except Exception:
+            pass
+        return pos, s
+
+    def numbify(self):
+        text = self.text().strip()
+        # chars = '0123456789bdy' removed the option to choose locktime by block
+        chars = "0123456789dy"
+        pos = self.cursorPosition()
+        pos = len("".join([i for i in text[:pos] if i in chars]))
+        s = "".join([i for i in text if i in chars])
+        self.isdays = False
+        self.isyears = False
+        self.isblocks = False
+
+        pos, s = self.checkbdy(s, pos, "d")
+        pos, s = self.checkbdy(s, pos, "y")
+        pos, s = self.checkbdy(s, pos, "b")
+
+        if "d" in s:
+            self.isdays = True
+        if "y" in s:
+            self.isyears = True
+        if "b" in s:
+            self.isblocks = True
+
+        if self.isdays:
+            s = self.replace_str(s) + "d"
+        if self.isyears:
+            s = self.replace_str(s) + "y"
+        if self.isblocks:
+            s = self.replace_str(s) + "b"
+        self.blockSignals(True)
+        self.setText(s)
+        self.blockSignals(False)
+        # self.set_value(s, force=False)
+        self.current_value = s
+        # setText sets Modified to False.  Instead we want to remember
+        # if updates were because of user modification.
+        self.setModified(self.hasFocus())
+        self.setCursorPosition(pos)
+
+    def get_value(self) -> Optional[str]:
+        try:
+            return str(self.text())
+        except Exception:
+            return None
+
+    def set_value(self, x: Any, force=True) -> None:
+        if x != self.get_value():
+            self.blockSignals(True)
+            self.setText(str(x))
+            self.blockSignals(False)
+            self.numbify()
+
+
+
+class LockTimeDateEdit(QDateTimeEdit, _LockTimeEditor):
+    min_allowed_value = NLOCKTIME_BLOCKHEIGHT_MAX + 1
+    max_allowed_value = _LockTimeEditor.get_max_allowed_timestamp()
+
+    def __init__(self, parent=None, time_edit=None):
+        QDateTimeEdit.__init__(self, parent)
+        self.setMinimumDateTime(datetime.fromtimestamp(self.min_allowed_value))
+        self.setMaximumDateTime(datetime.fromtimestamp(self.max_allowed_value))
+        #self.setDateTime(QDateTime.currentDateTime())
+        self.time_edit = time_edit
+
+    def get_value(self) -> Optional[int]:
+        #dt = self.dateTime().toPyDateTime()
+        #locktime = int(time.mktime(dt.timetuple()))
+        #p#
+        #dt = dt_edit.dateTime()
+        ## QDateTimets = dt.toSecsSinceEpoch()
+
+        dt = self.dateTime()
+        _ts = dt.toSecsSinceEpoch()
+
+        return _ts
+
+
+    def set_value(self, x: Any, force=False) -> None:
+        if not self.is_acceptable_locktime(x):
+            self.setDateTime(QDateTime.currentDateTime())
+            return
+        try:
+            x = int(x)
+        except Exception as e:
+            x = QDateTime.currentDateTime().timestamp()
+        finally:
+            _dt = datetime.fromtimestamp(x)
+            #if self.alarm != dt:
+            self.setDateTime(_dt)
+            self.alarm = _dt
+
+
+
+class ThresholdTimeWidget(BalTimeEditWidget):
+    help_text = (
+        "Check to ask for invalidation.\n\n"
+        "When less then this time is missing, ask to invalidate.\n"
+        "If you fail to invalidate during this time, your transactions will be delivered to your heirs.\n\n"
+        f"{BalTimeEditWidget.help_text}"
+    )
+    label_text = "🚨"
+    #label_text = "Check Alive"
+    base_field = "threshold"
+
+    def __init__(self, bal_window, parent, init_value=None):
+        if init_value is None:
+            init_value = bal_window.bal_plugin.WILL_SETTINGS.get()["threshold"]
+        super().__init__(bal_window, parent, init_value)
+        self.default_value = self.bal_window.bal_plugin.default_will_settings()[
+            "threshold"
+        ]
+
+
+
+class LockTimeWidget(BalTimeEditWidget):
+    help_text = (
+        "Set Locktime for transactions.\n"
+        "Any time is needed transaction will be anticipated by 1day\n"
+        f"{BalTimeEditWidget.help_text}"
+    )
+    label_text = "🚛"
+    #label_text = "Locktime"
+    base_field = "locktime"
+
+    def __init__(self, bal_window, parent, init_value=None):
+        if init_value is None:
+            init_value = bal_window.bal_plugin.WILL_SETTINGS.get()["locktime"]
+        super().__init__(bal_window, parent, init_value)
+        self.default_value = self.bal_window.bal_plugin.default_will_settings()[
+            "locktime"
+        ]
+
+
+
+class WillSettingsWidget(QWidget):
+
+    def __init__(self, bal_window: "BalWindow", parent, layout_type="h"):
+        self.widgets = {}
+        QWidget.__init__(self, parent)
+        self.bal_window = bal_window
+        box = QHBoxLayout(self) if layout_type == "h" else QVBoxLayout(self)
+
+        self.calendar_button = QPushButton()
+        self.calendar_button.setIcon(
+            read_QIcon_from_bytes(
+                self.bal_window.bal_plugin.read_file("icons/calendar.png")
+            )
+        )
+        self.calendar_button.clicked.connect(self.open_or_save_calendar)
+        self.widgets["locktime"] = LockTimeWidget(bal_window, self)
+        self.widgets["threshold"] = ThresholdTimeWidget(bal_window, self)
+        self.widgets["locktime"].valueEdited.connect(self.on_locktime_change)
+        self.widgets["threshold"].valueEdited.connect(self.on_locktime_change)
+        # self.widgets['baltx_fees'].valueChange.connect(self.bal_window.update_setting_widgets)
+        self.on_locktime_change()
+        self.widgets["baltx_fees"] = BalTxFeesWidget(bal_window, self)
+        if not hasattr(bal_window, "txfee_widgets"):
+            bal_window.txfee_widgets = []
+
+        w = self.widgets["baltx_fees"]
+        if w not in bal_window.txfee_widgets:
+            bal_window.txfee_widgets.append(w)
+        box.addWidget(self.widgets["locktime"])
+        box.addWidget(self.widgets["threshold"])
+        box.addWidget(self.calendar_button)
+        box.addWidget(self.widgets["baltx_fees"])
+
+    def create_alarms(self, alarm_start, alarm_end):
+        days = (alarm_end - alarm_start).days+1
+        lines = []
+        for i in range(1, days):
+            lines.extend(
+                [
+                    "BEGIN:VALARM",
+                    f"TRIGGER;RELATED=END:-P{i}D",
+                    "ACTION:DISPLAY",
+                    # f"DESCRIPTION:{self.bal_window.bal_plugin.ALARM_DESCRIPTION.get()}",
+                    "END:VALARM",
+                ]
+            )
+        return lines
+
+    def open_or_save_calendar(self):
+        now = BalCalendar.format_time(datetime.now())
+
+        locktime = self.widgets["locktime"].alarm
+        threshold = self.widgets["threshold"].alarm
+        alarm_end = BalCalendar.format_time(locktime)
+        alarm_start = BalCalendar.format_time(threshold)
+        days_difference = (locktime - threshold).days
+
+        heirs_details = "\r\n".join(f" {heir} - {self.bal_window.heirs[heir][0]}, {self.bal_window.heirs[heir][1]}" for heir in self.bal_window.heirs)
+        event_description = BalCalendar.ical_escape(
+                f"{self.bal_window.bal_plugin.EVENT_DESCRIPTION.get()}".replace("$wallet_name",str(self.bal_window.wallet)).replace("$heirs_complete",heirs_details)
+        )
+        #event_description =f"{event_description}{heirs_details}"
+        uid = f"bal-{str(self.bal_window.wallet)}"
+        summary = BalCalendar.ical_escape(
+            f"{self.bal_window.bal_plugin.EVENT_SUMMARY.get()}".replace("$wallet_name",str(self.bal_window.wallet))
+        )
+        lines = [
+            "BEGIN:VCALENDAR",
+            "VERSION:2.0",
+            f"PRODID:-//Bitcoin After Life//Electrum Plugin/{BalPlugin.__version__}",
+            "BEGIN:VEVENT",
+            f"UID:{uid}",
+            f"DTSTAMP:{now}",
+            f"DTSTART:{alarm_end}",
+            f"DTEND:{alarm_end}",
+            f"SUMMARY:{summary}",
+            f"DESCRIPTION:{event_description}",
+        ]
+        lines.extend(self.create_alarms(threshold, locktime))
+        lines.extend([
+            "END:VEVENT",
+            "END:VCALENDAR",
+        ])
+
+        lines = [s.rstrip("\r\n") for s in lines]
+        ics_content = "\r\n".join(lines) + "\r\n"
+        self.temp_path = BalCalendar.write_temp_ics(ics_content)
+        opened = BalCalendar.open_with_default_app(
+            self.bal_window.bal_plugin.CALENDAR_APP.get(), self.temp_path
+        )
+        if opened:
+            _logger.info(f"File opened with default app: {self.temp_path}")
+        else:
+            export_meta_gui(
+                self.bal_window.window, f"will_event.ics",self.save_to_cwd
+
+            )
+
+
+    def save_to_cwd(self,filename="event.ics"):
+        target = os.path.abspath(filename)
+        # se il file esiste, sovrascrive
+        _logger.debug(f"save_to_cwd {self.temp_path},{filename}")
+        with open(self.temp_path, "rb") as src, open(target, "wb") as dst:
+            dst.write(src.read())
+        return target
+
+    def on_locktime_change(self):
+        locktime = self.widgets["locktime"].get_value()
+        threshold = self.widgets["threshold"].get_value()
+        locktime = BalTimestamp(locktime)
+        threshold = BalTimestamp(threshold)
+
+        min_locktime = min(
+                Will.get_min_locktime(self.bal_window.willitems, NLOCKTIME_MAX),
+                locktime.to_timestamp(),
+        )
+        td = threshold.to_date(min_locktime, True)
+        self.widgets["threshold"].alarm=td
+        self.bal_window.will_settings["real_threshold"]=td.timestamp()
+        try:
+            self.widgets["threshold"].editor.label.setText(td.strftime("%Y-%m-%d"))
+        except Exception as _e:
+            pass
+
+        td = locktime.to_date()
+        alarm = BalTimestamp(min_locktime).to_date()
+        self.widgets["locktime"].alarm=alarm
+        self.bal_window.will_settings["real_locktime"]=td.timestamp()
+        try:
+            self.widgets["locktime"].editor.label.setText(td.strftime("%Y-%m-%d"))
+        except Exception as _e:
+            pass
+
+
+
+class PercAmountEdit(BTCAmountEdit):
+    def __init__(self, decimal_point, is_int=False, parent=None, *, max_amount=None):
+        super().__init__(decimal_point, is_int, parent, max_amount=max_amount)
+
+    def numbify(self):
+        text = self.text().strip()
+        if text == "!":
+            self.shortcut.emit()
+            return
+        pos = self.cursorPosition()
+        chars = "0123456789%"
+        chars += DECIMAL_POINT
+
+        s = "".join([i for i in text if i in chars])
+
+        if "%" in s:
+            self.is_perc = True
+            s = s.replace("%", "")
+        else:
+            self.is_perc = False
+
+        if DECIMAL_POINT in s:
+            p = s.find(DECIMAL_POINT)
+            s = s.replace(DECIMAL_POINT, "")
+            s = s[:p] + DECIMAL_POINT + s[p : p + 8]
+        if self.is_perc:
+            s += "%"
+
+        self.setText(s)
+        self.setModified(self.hasFocus())
+        self.setCursorPosition(pos)
+
+    def _get_amount_from_text(self, text: str) -> Union[None, Decimal, int]:
+        try:
+            text = text.replace(DECIMAL_POINT, ".")
+            text = text.replace("%", "")
+            return (Decimal)(text)
+        except Exception:
+            return None
+
+    def _get_text_from_amount(self, amount):
+        out = super()._get_text_from_amount(amount)
+        if self.is_perc:
+            out += "%"
+        return out
+
+    def paintEvent(self, event):
+        QLineEdit.paintEvent(self, event)
+        if self.base_unit:
+            panel = QStyleOptionFrame()
+            self.initStyleOption(panel)
+            textRect = self.style().subElementRect(
+                QStyle.SubElement.SE_LineEditContents, panel, self
+            )
+            textRect.adjust(2, 0, -10, 0)
+            painter = QPainter(self)
+            painter.setPen(ColorScheme.GRAY.as_color())
+            if len(self.text()) == 0:
+                painter.drawText(
+                    textRect,
+                    int(Qt.AlignmentFlag.AlignRight | Qt.AlignmentFlag.AlignVCenter),
+                    self.base_unit() + " or perc value",
+                )
+
+
+
+class BalLineEdit(QLineEdit):
+    def __init__(self,variable):
+        QLineEdit.__init__(self)
+        self.setText(variable.get())
+        def on_edit():
+            variable.set(self.text())
+        self.editingFinished.connect(on_edit)
+
+
+class BalTextEdit(QTextEdit):
+    def __init__(self,variable):
+        QTextEdit.__init__(self)
+        self.setPlainText(variable.get())
+        def on_edit():
+            variable.set(self.toPlainText())
+        self.textChanged.connect(on_edit)
+
+
+class BalCheckBox(QCheckBox):
+    def __init__(self, variable, on_click=None):
+        QCheckBox.__init__(self)
+        self.setChecked(variable.get())
+        self.on_click = on_click
+
+        def on_check(v):
+            variable.set(v == 2)
+            #variable.get()
+            if self.on_click:
+                self.on_click()
+
+        self.stateChanged.connect(on_check)
+
+
+
+class WillWidget(QWidget):
+    def __init__(self, father=None, parent=None):
+        super().__init__()
+        vlayout = QVBoxLayout()
+        self.setLayout(vlayout)
+        self.will = parent.bal_window.willitems
+        self.parent = parent
+        for w in self.will:
+            if (
+                self.will[w].get_status("REPLACED")
+                and self.parent.bal_window.bal_plugin._hide_replaced
+            ):
+                continue
+            if (
+                self.will[w].get_status("INVALIDATED")
+                and self.parent.bal_window.bal_plugin._hide_invalidated
+            ):
+                continue
+            f = self.will[w].father
+            if father == f:
+                qwidget = QWidget()
+                # childWidget = QWidget()
+                hlayout = QHBoxLayout(qwidget)
+                qwidget.setLayout(hlayout)
+                vlayout.addWidget(qwidget)
+                detailw = QWidget()
+                detaillayout = QVBoxLayout()
+                detailw.setLayout(detaillayout)
+
+                willpushbutton = QPushButton(w)
+
+                willpushbutton.clicked.connect(
+                    partial(self.parent.bal_window.show_transaction, txid=w)
+                )
+                detaillayout.addWidget(willpushbutton)
+                locktime = str(BalTimestamp(self.will[w].tx.locktime))
+                creation = str(BalTimestamp(self.will[w].time))
+
+                def qlabel(title, value):
+                    label = "<b>" + _(str(title)) + f":</b>\t{str(value)}"
+                    return QLabel(label)
+
+                detaillayout.addWidget(qlabel("Locktime", locktime))
+                detaillayout.addWidget(qlabel("Creation Time", creation))
+                try:
+                    total_fees = (
+                        self.will[w].tx.input_value() - self.will[w].tx.output_value()
+                    )
+                except Exception:
+                    total_fees = -1
+                decoded_fees = total_fees
+                fee_per_byte = round(total_fees / self.will[w].tx.estimated_size(), 3)
+                fees_str = str(decoded_fees) + " (" + str(fee_per_byte) + " sats/vbyte)"
+                detaillayout.addWidget(qlabel("Transaction fees:", fees_str))
+                detaillayout.addWidget(qlabel("Status:", self.will[w].status))
+                detaillayout.addWidget(QLabel(""))
+                detaillayout.addWidget(QLabel("<b>Heirs:</b>"))
+                for heir in self.will[w].heirs:
+                    if 'w!ll3x3c"' not in heir:
+                        decoded_amount = Util.decode_amount(
+                            self.will[w].heirs[heir][3], self.parent.decimal_point
+                        )
+                        detaillayout.addWidget(
+                            qlabel(
+                                heir, f"{decoded_amount} {self.parent.base_unit_name}"
+                            )
+                        )
+                if self.will[w].we:
+                    detaillayout.addWidget(QLabel(""))
+                    detaillayout.addWidget(QLabel(_("<b>Willexecutor:</b:")))
+                    decoded_amount = Util.decode_amount(
+                        self.will[w].we["base_fee"], self.parent.decimal_point
+                    )
+
+                    detaillayout.addWidget(
+                        qlabel(
+                            self.will[w].we["url"],
+                            f"{decoded_amount} {self.parent.base_unit_name}",
+                        )
+                    )
+                detaillayout.addStretch()
+                pal = QPalette()
+                pal.setColor(
+                    QPalette.ColorRole.Window, QColor(status_color(self.will[w]))
+                )
+                detailw.setAutoFillBackground(True)
+                detailw.setPalette(pal)
+
+                hlayout.addWidget(detailw)
+                hlayout.addWidget(WillWidget(w, parent=parent))
+
+

bal/gui/qt/window.py

@@ -0,0 +1,952 @@
+"""
+bal.gui.qt.window
+=================
+
+The :class:`BalWindow` controller: one instance per Electrum wallet window.
+
+This is the orchestration layer that ties together the heirs list, the will
+preview, the will-executors and the various dialogs.  It owns the per-wallet
+state (``heirs``, ``will``, ``willitems``, ``will_settings``) and exposes the
+high-level actions (build / check / sign / broadcast / invalidate the will,
+import/export, etc.) that the menus, tabs and dialogs invoke.
+
+The actual Bitcoin logic lives in :mod:`bal.core`; this class only coordinates
+it with the GUI.
+"""
+
+from .common import *
+from .common import _, _logger  # underscore names are not re-exported by "import *"
+from .widgets import LockTimeWidget, PercAmountEdit, WillSettingsWidget
+from .dialogs import (BalBlockingWaitingDialog, BalBuildWillDialog, BalDialog,
+                      BalWaitingDialog, BalWizardDialog, WillDetailDialog,
+                      WillExecutorDialog)
+from .lists import HeirListWidget, PreviewList, WillExecutorWidget
+
+
+class BalWindow:
+    def __init__(self, bal_plugin: "BalPlugin", window: "ElectrumWindow"):
+        self.bal_plugin = bal_plugin
+        self.window = window
+        self.heirs = {}
+        self.will = {}
+        self.willitems = {}
+        self.willexecutors = {}
+        self.will_settings = None
+        self.ok = False
+        self.disable_plugin = True
+        self.bal_plugin.get_decimal_point = self.window.get_decimal_point
+
+        if self.window.wallet:
+            self.wallet = self.window.wallet
+            if not self.will_settings:
+                self.will_settings = self.bal_plugin.WILL_SETTINGS.get()
+                Util.fix_will_settings_tx_fees(self.will_settings)
+            self.heirs = Heirs(self.wallet)
+
+            self.heirs_tab = self.create_heirs_tab()
+            self.will_tab = self.create_will_tab()
+            self.heirs_tab.wallet = self.wallet
+            self.will_tab.wallet = self.wallet
+
+    def init_menubar_tools(self, tools_menu):
+        self.tools_menu = tools_menu
+
+        def add_optional_tab(tabs, tab, icon, description):
+            tab.tab_icon = icon
+            tab.tab_description = description
+            tab.tab_pos = len(tabs)
+            if tab.is_shown_cv.get():
+                tabs.addTab(tab, icon, description.replace("&", ""))
+
+        def add_toggle_action(tab):
+            is_shown = tab.is_shown_cv.get()
+            tab.menu_action = self.window.view_menu.addAction(
+                tab.tab_description, lambda: self.window.toggle_tab(tab)
+            )
+            tab.menu_action.setCheckable(True)
+            tab.menu_action.setChecked(is_shown)
+
+        add_optional_tab(
+            self.window.tabs,
+            self.heirs_tab,
+            read_QIcon_from_bytes(self.bal_plugin.read_file("icons/heir.png")),
+            _("&Heirs"),
+        )
+        add_optional_tab(
+            self.window.tabs,
+            self.will_tab,
+            read_QIcon_from_bytes(self.bal_plugin.read_file("icons/will.png")),
+            _("&Will"),
+        )
+        tools_menu.addSeparator()
+        self.tools_menu.willexecutors_action = tools_menu.addAction(
+            _("&Will-Executors"), self.show_willexecutor_dialog
+        )
+        self.window.view_menu.addSeparator()
+        add_toggle_action(self.heirs_tab)
+        add_toggle_action(self.will_tab)
+
+    def load_willitems(self):
+        self.willitems = {}
+        for wid, w in self.will.items():
+            self.willitems[wid] = WillItem(w, wallet=self.wallet)
+        if self.willitems:
+            self.will_list_widget.will = self.willitems
+            self.will_list_widget.update_will(self.willitems)
+            self.will_tab.update()
+
+    def save_willitems(self):
+        keys = list(self.will.keys())
+        for k in keys:
+            del self.will[k]
+        for wid, w in self.willitems.items():
+            self.will[wid] = w.to_dict()
+
+    def init_will(self):
+        _logger.info("********************init_____will____________**********")
+        if not self.willexecutors:
+            self.willexecutors = Willexecutors.get_willexecutors(
+                self.bal_plugin, update=False, bal_window=self
+            )
+        if not self.heirs:
+            self.heirs = Heirs._validate(Heirs(self.wallet))
+            self.heirs_tab.update()
+        if not self.will:
+            self.will = self.wallet.db.get_dict("will")
+            Util.fix_will_tx_fees(self.will)
+            if self.will:
+                self.willitems = {}
+                try:
+                    self.load_willitems()
+                except Exception:
+                    self.disable_plugin = True
+                    self.show_warning(
+                        _("Please restart Electrum to activate the BAL plugin"),
+                        title=_("Success"),
+                    )
+                    self.close_wallet()
+                    return
+
+        # if not self.will_settings:
+        #    self.will_settings = self.wallet.db.get_dict("will_settings")
+        #    Util.fix_will_settings_tx_fees(self.will_settings)
+
+        #    _logger.info("will_settings: {}".format(self.will_settings))
+        #    if not self.will_settings:
+        #        Util.copy(self.will_settings, self.bal_plugin.default_will_settings())
+        #        _logger.debug("not_will_settings {}".format(self.will_settings))
+        #    self.bal_plugin.validate_will_settings(self.will_settings)
+        #    self.heir_list_widget.update_will_settings()
+        #    self.heir_list_widget.update()
+
+    def init_wizard(self):
+        wizard_dialog = BalWizardDialog(self)
+        wizard_dialog.exec()
+
+    def show_willexecutor_dialog(self):
+        self.willexecutor_dialog = WillExecutorDialog(self)
+        self.willexecutor_dialog.show()
+
+    def create_heirs_tab(self):
+        if not self.heirs:
+            self.heirs = Heirs(self.wallet)
+        self.heir_list_widget = HeirListWidget(self, self.window)
+        tab = self.window.create_list_tab(self.heir_list_widget)
+        tab.is_shown_cv = shown_cv(False)
+        return tab
+
+    def create_will_tab(self):
+        self.will_list_widget = PreviewList(self, self.window, None)
+        tab = self.window.create_list_tab(self.will_list_widget)
+        tab.is_shown_cv = shown_cv(True)
+        return tab
+
+    def new_heir_dialog(self, heir_key=None):
+        heir = self.heirs.get(heir_key)
+        title = "New heir"
+        if heir:
+            title = f"Edit: {heir_key}"
+
+        d = BalDialog(
+            self.window, self.bal_plugin, self.bal_plugin.get_window_title(_(title))
+        )
+
+        vbox = QVBoxLayout(d)
+        grid = QGridLayout()
+
+        heir_name = QLineEdit()
+        heir_name.setFixedWidth(32 * char_width_in_lineedit())
+        heir_address = QLineEdit()
+        heir_address.setFixedWidth(32 * char_width_in_lineedit())
+        heir_amount = PercAmountEdit(self.window.get_decimal_point)
+
+        if heir:
+            heir_name.setText(str(heir_key))
+            heir_address.setText(str(heir[0]))
+            heir_amount.setText(
+                str(Util.decode_amount(heir[1], self.window.get_decimal_point()))
+            )
+            self.heir_locktime = LockTimeWidget(self, self.window, heir[2])
+
+        # heir_is_xpub = QCheckBox()
+
+        new_heir_button = QPushButton(_("Add another heir"))
+        self.add_another_heir = False
+
+        def new_heir():
+            self.add_another_heir = True
+            d.accept()
+
+        new_heir_button.clicked.connect(new_heir)
+        new_heir_button.setDefault(True)
+
+        grid.addWidget(QLabel(_("Name")), 1, 0)
+        grid.addWidget(heir_name, 1, 1)
+        grid.addWidget(HelpButton(_("Unique name or description about heir")), 1, 2)
+
+        grid.addWidget(QLabel(_("Address")), 2, 0)
+        grid.addWidget(heir_address, 2, 1)
+        grid.addWidget(HelpButton(_("heir bitcoin address")), 2, 2)
+
+        grid.addWidget(QLabel(_("Amount")), 3, 0)
+        grid.addWidget(heir_amount, 3, 1)
+        grid.addWidget(HelpButton(_("Fixed or Percentage amount if end with %")), 3, 2)
+
+        locktime_label = QLabel(_("Locktime"))
+        enable_multiverse = self.bal_plugin.ENABLE_MULTIVERSE.get()
+        if enable_multiverse:
+            grid.addWidget(locktime_label, 4, 0)
+            grid.addWidget(self.heir_locktime, 4, 1)
+            grid.addWidget(HelpButton(_("locktime")), 4, 2)
+
+        vbox.addLayout(grid)
+        buttons = [CancelButton(d), OkButton(d)]
+        if not heir:
+            buttons.append(new_heir_button)
+        vbox.addLayout(Buttons(*buttons))
+        while d.exec():
+            # TODO SAVE HEIR
+            heir = [
+                heir_name.text(),
+                heir_address.text(),
+                Util.encode_amount(heir_amount.text(), self.window.get_decimal_point()),
+                str(self.will_settings["locktime"]),
+            ]
+            try:
+                self.set_heir(heir)
+                if self.add_another_heir:
+                    self.new_heir_dialog()
+                break
+            except Exception as e:
+                self.show_error(str(e))
+
+    def set_heir(self, heir):
+        heir = list(heir)
+        if not self.bal_plugin.ENABLE_MULTIVERSE.get():
+            heir[3] = self.will_settings["locktime"]
+
+        h = Heirs.validate_heir(heir[0], heir[1:])
+        self.heirs[heir[0]] = h
+        self.heir_list_widget.update()
+        return True
+
+    def delete_heirs(self, heirs):
+        for heir in heirs:
+            try:
+                del self.heirs[heir]
+            except Exception as e:
+                _logger.debug(f"error deleting heir: {heir} {e}")
+                pass
+        self.heirs.save()
+        self.heir_list_widget.update()
+        return True
+
+    def import_heirs(self):
+        import_meta_gui(
+            self.window,
+            _("heirs"),
+            self.heirs.import_file,
+            self.heir_list_widget.update,
+        )
+
+    def export_heirs(self):
+        export_meta_gui(self.window, "heirs.json", self.heirs.export_file)
+
+    def prepare_will(self, ignore_duplicate=False, keep_original=False):
+        will = self.build_inheritance_transaction(
+            ignore_duplicate=ignore_duplicate, keep_original=keep_original
+        )
+        return will
+
+    def delete_not_valid(self, txid, s_utxo):
+        raise NotImplementedError()
+
+    def update_will(self, will):
+        Will.update_will(self.willitems, will)
+        self.willitems.update(will)
+        Will.normalize_will(self.willitems, self.wallet)
+
+    def build_will(self, ignore_duplicate=True, keep_original=True):
+        _logger.debug("building will...")
+        will = {}
+        # willtodelete = []
+        # willtoappend = {}
+        try:
+            self.willexecutors = Willexecutors.get_willexecutors(
+                self.bal_plugin, update=False, bal_window=self
+            )
+            if not self.no_willexecutor:
+
+                f = False
+                for _u, w in self.willexecutors.items():
+                    if Willexecutors.is_selected(w):
+                        f = True
+                if not f:
+                    _logger.error("No Will-Executor or backup transaction selected")
+                    raise NoWillExecutorNotPresent(
+                        "No Will-Executor or backup transaction selected"
+                    )
+            txs = self.heirs.get_transactions(
+                self.bal_plugin,
+                self.window.wallet,
+                self.will_settings["baltx_fees"],
+                None,
+                self.date_to_check,
+            )
+
+            _logger.info(f"txs built: {txs}")
+            creation_time = time.time()
+            if txs:
+                for txid in txs:
+                    # txtodelete = []
+                    _break = False
+                    tx = {}
+                    tx["tx"] = txs[txid]
+                    tx["my_locktime"] = txs[txid].my_locktime
+                    tx["heirsvalue"] = txs[txid].heirsvalue
+                    tx["description"] = txs[txid].description
+                    tx["willexecutor"] = copy.deepcopy(txs[txid].willexecutor)
+                    tx["status"] = _("New")
+                    tx["baltx_fees"] = txs[txid].tx_fees
+                    tx["time"] = creation_time
+                    tx["heirs"] = copy.deepcopy(txs[txid].heirs)
+                    tx["txchildren"] = []
+                    will[txid] = WillItem(tx, _id=txid, wallet=self.wallet)
+                self.update_will(will)
+            else:
+                _logger.info("No transactions was built")
+                _logger.info(f"will-settings: {self.will_settings}")
+                _logger.info(f"date_to_check:{self.date_to_check}")
+                _logger.info(f"heirs: {self.heirs}")
+                return {}
+        except Exception as e:
+            _logger.info(f"Exception build_will: {e}")
+            raise e
+            pass
+        return self.willitems
+
+    def check_will(self):
+        return Will.is_will_valid(
+            self.willitems,
+            self.block_to_check,
+            self.date_to_check,
+            self.will_settings["baltx_fees"],
+            self.window.wallet.get_utxos(),
+            heirs=self.heirs,
+            willexecutors=self.willexecutors,
+            self_willexecutor=self.no_willexecutor,
+            wallet=self.wallet,
+            callback_not_valid_tx=self.delete_not_valid,
+        )
+
+    def show_message(self, text):
+        self.window.show_message(text)
+
+    def show_warning(self, text, parent=None):
+        self.window.show_warning(text, parent=None)
+
+    def show_error(self, text):
+        self.window.show_error(text)
+
+    def show_critical(self, text):
+        self.window.show_critical(text)
+
+    def update_combo_setting_widgets(
+        self,
+        new_value,
+        field,
+        update_all=False,
+        update_will_dialog=False,
+        update_heirs_dialog=False,
+    ):
+        if (update_all or update_will_dialog) and hasattr(self,'will_list_widget'):
+            self.update_widget_combo(self.will_list_widget,field,new_value)
+        if update_all or update_heirs_dialog and hasattr(self,'heir_list_widget'):
+            self.update_widget_combo(self.heir_list_widget,field,new_value)
+
+
+    def update_widget_combo(self,widget,field,value):
+        try:
+            widget.will_settings_widget.widgets[field].set_index(value)
+        except Exception as _e:
+            pass
+    def update_widget_value(self, widget, field, value):
+        try:
+            widget.will_settings_widget.widgets[field].set_value(value)
+        except Exception as _e:
+            pass
+
+    def update_setting_widgets(
+        self,
+        new_value,
+        field,
+        update_all=False,
+        update_will_dialog=False,
+        update_heirs_dialog=False,
+    ):
+        if update_all or update_heirs_dialog:
+            self.update_widget_value(self.heir_list_widget, field, new_value)
+        if update_all or update_will_dialog:
+            self.update_widget_value(self.will_list_widget, field, new_value)
+        self.will_settings[field] = new_value
+        self.bal_plugin.WILL_SETTINGS.set(self.will_settings)
+
+    def init_heirs_to_locktime(self, multiverse=False):
+        #pass
+        for heir in self.heirs:
+            h = self.heirs[heir]
+            if not multiverse:
+                self.heirs[heir] = [h[0], h[1], self.will_settings["locktime"]]
+
+    def init_class_variables(self):
+        if not self.heirs:
+            raise NoHeirsException(_("Heirs are not defined"))
+        try:
+            self.date_to_check = BalTimestamp(self.will_settings['threshold']).to_timestamp()
+            # found = False
+            self.locktime_blocks = self.bal_plugin.LOCKTIME_BLOCKS.get()
+            self.current_block = Util.get_current_height(self.wallet.network)
+            self.block_to_check = 0
+            self.no_willexecutor = self.bal_plugin.NO_WILLEXECUTOR.get()
+            self.willexecutors = Willexecutors.get_willexecutors(
+                self.bal_plugin, update=True, bal_window=self, task=False
+            )
+            if self.date_to_check < datetime.now().timestamp():
+                raise CheckAliveError(self.date_to_check)
+
+            self.init_heirs_to_locktime(self.bal_plugin.ENABLE_MULTIVERSE.get())
+
+        except Exception as e:
+            log_error(e )
+            _logger.error(f"init_class_variables: {e}")
+
+            raise e
+
+    def build_inheritance_transaction(self, ignore_duplicate=True, keep_original=True):
+        try:
+            if self.disable_plugin:
+                _logger.info("plugin is disabled")
+                return
+            if not self.heirs:
+                _logger.warning("not heirs {}".format(self.heirs))
+                return
+            try:
+                self.init_class_variables()
+                Will.check_amounts(
+                    self.heirs,
+                    self.willexecutors,
+                    self.window.wallet.get_utxos(),
+                    self.date_to_check,
+                    self.window.wallet.dust_threshold(),
+                )
+            except AmountException as e:
+                self.show_warning(
+                    _(
+                        f"In the inheritance process, the entire wallet will always be fully emptied. Your settings require an adjustment of the amounts.{e}"
+                    )
+                )
+            except CheckAliveError:
+                self.show_error(
+                    _(
+                        "CheckAlive is in the past please update it to a date in the future but less than locktime"
+                    )
+                )
+                return
+            locktime = Util.parse_locktime_string(self.will_settings["locktime"])
+            if locktime < self.date_to_check:
+                self.show_error(_("locktime is lower than threshold"))
+                return
+            if not self.no_willexecutor:
+                f = False
+                for _k, we in self.willexecutors.items():
+                    if Willexecutors.is_selected(we):
+                        f = True
+                if not f:
+                    self.show_error(
+                        _(" no backup transaction or willexecutor selected")
+                    )
+                    return
+
+            try:
+                self.check_will()
+            except WillExpiredException:
+                self.invalidate_will()
+                return
+            except NoHeirsException:
+                return
+            except NotCompleteWillException as e:
+                _logger.info("{}:{}".format(type(e), e))
+                message = False
+                if isinstance(e, HeirChangeException):
+                    message = "Heirs changed:"
+                elif isinstance(e, WillExecutorNotPresent):
+                    message = "Will-Executor not present:"
+                elif isinstance(e, WillexecutorChangeException):
+                    message = "Will-Executor changed"
+                elif isinstance(e, TxFeesChangedException):
+                    message = "Txfees are changed"
+                elif isinstance(e, HeirNotFoundException):
+                    message = "Heir not found"
+
+                if message:
+                    self.show_message(
+                        f"{_(message)}:\n {e}\n{_('will have to be built')}"
+                    )
+
+                _logger.info("build will")
+                self.build_will(ignore_duplicate, keep_original)
+
+                try:
+                    self.check_will()
+                    for wid, _w in self.willitems.items():
+                        self.wallet.set_label(wid, "BAL Transaction")
+                except WillExpiredException as e:
+                    self.invalidate_will()
+                except NotCompleteWillException as e:
+                    self.show_error(
+                        "Error:{}\n {}".format(
+                            str(e),
+                            _("Please, check your heirs, locktime and threshold!"),
+                        )
+                    )
+
+                self.window.history_list.update()
+                self.window.utxo_list.update()
+            self.update_all()
+            return self.willitems
+        except Exception as e:
+            raise e
+
+    def show_transaction_real(
+        self,
+        tx: Transaction,
+        *,
+        parent: "ElectrumWindow",
+        prompt_if_unsaved: bool = False,
+        external_keypairs: Mapping[bytes, bytes] = None,
+        payment_identifier: "PaymentIdentifier" = None,
+    ):
+        try:
+            d = TxDialog(
+                tx,
+                parent=parent,
+                prompt_if_unsaved=prompt_if_unsaved,
+                external_keypairs=external_keypairs,
+                # payment_identifier=payment_identifier,
+            )
+            d.setWindowIcon(
+                read_QIcon_from_bytes(self.bal_plugin.read_file("icons/bal16x16.png"))
+            )
+        except SerializationError as e:
+            _logger.error("unable to deserialize the transaction")
+            parent.show_critical(
+                _("Electrum was unable to deserialize the transaction:") + "\n" + str(e)
+            )
+        else:
+            d.show()
+            return d
+
+    def show_transaction(self, tx=None, txid=None, parent=None):
+        if not parent:
+            parent = self.window
+        if txid is not None and txid in self.willitems:
+            tx = self.willitems[txid].tx
+        if not tx:
+            raise Exception(_("no tx"))
+        return self.show_transaction_real(tx, parent=parent)
+
+    def invalidate_will(self):
+        def on_success(result):
+            if result:
+                self.show_message(
+                    _(
+                        "Please sign and broadcast this transaction to invalidate current will"
+                    )
+                )
+                self.wallet.set_label(result.txid(), "BAL Invalidate")
+                self.show_transaction(result)
+            else:
+                self.show_message(_("No transactions to invalidate"))
+
+        def on_failure(exec_info):
+            log_error(exec_info, self.bal_window)
+
+        fee_per_byte = self.will_settings.get("baltx_fees", 1)
+        task = partial(Will.invalidate_will, self.willitems, self.wallet, fee_per_byte)
+        msg = _("Calculating Transactions")
+        self.waiting_dialog = BalWaitingDialog(
+            self, msg, task, on_success, on_failure, exe=False
+        )
+        self.waiting_dialog.exe()
+
+    def sign_transactions(self, password):
+        try:
+            txs = {}
+            signed = None
+            tosign = None
+
+            def get_message():
+                msg = ""
+                if signed:
+                    msg = _(f"signed: {signed}\n")
+                return msg + _(f"signing: {tosign}")
+
+            for txid in Will.only_valid(self.willitems):
+                wi = self.willitems[txid]
+                tx = copy.deepcopy(wi.tx)
+                if wi.get_status("COMPLETE"):
+                    txs[txid] = tx
+                    continue
+                tosign = txid
+                try:
+                    self.waiting_dialog.update(get_message())
+                except Exception:
+                    pass
+                for txin in tx.inputs():
+                    prevout = txin.prevout.to_json()
+                    if prevout[0] in self.willitems:
+                        change = self.willitems[prevout[0]].tx.outputs()[prevout[1]]
+                        txin._trusted_value_sats = change.value
+                        try:
+                            txin.script_descriptor = change.script_descriptor
+                        except Exception:
+                            pass
+                        txin.is_mine = True
+                        txin._TxInput__address = change.address
+                        txin._TxInput__scriptpubkey = change.scriptpubkey
+                        txin._TxInput__value_sats = change.value
+
+                self.wallet.sign_transaction(tx, password, ignore_warnings=True)
+                signed = tosign
+                # is_complete = False
+                if tx.is_complete():
+                    # is_complete = True
+                    wi.set_status("COMPLETE", True)
+                txs[txid] = tx
+        except Exception:
+            return None
+        return txs
+
+    def get_wallet_password(self, message=None, parent=None):
+        parent = self.window if not parent else parent
+        password = None
+        if self.wallet.has_keystore_encryption():
+            password = self.bal_plugin.password_dialog(parent=parent, msg=message)
+            if password is None:
+                return False
+            try:
+                self.wallet.check_password(password)
+            except Exception as e:
+                self.show_error(str(e))
+                password = self.get_wallet_password(message)
+        return password
+
+    def on_close(self):
+        try:
+            if not self.disable_plugin:
+                close_window = BalBuildWillDialog(self)
+                close_window.build_will_task()
+                self.save_willitems()
+                self.heirs_tab.close()
+                self.will_tab.close()
+                self.tools_menu.removeAction(self.tools_menu.willexecutors_action)
+                self.window.toggle_tab(self.heirs_tab)
+                self.window.toggle_tab(self.will_tab)
+                self.window.tabs.update()
+        except Exception:
+            pass
+
+    def ask_password_and_sign_transactions(self, callback=None):
+        def on_success(txs):
+            if txs:
+                for txid, tx in txs.items():
+                    self.willitems[txid].tx = copy.deepcopy(tx)
+                    self.will[txid] = self.willitems[txid].to_dict()
+                try:
+                    self.will_list_widget.update()
+                except Exception:
+                    pass
+                if callback:
+                    try:
+                        callback()
+                    except Exception as e:
+                        raise e
+
+        def on_failure(exec_info):
+            log_error(exec_info, self.bal_window)
+
+        password = self.get_wallet_password()
+        task = partial(self.sign_transactions, password)
+        msg = _("Signing transactions...")
+        self.waiting_dialog = BalWaitingDialog(
+            self, msg, task, on_success, on_failure, exe=False
+        )
+        self.waiting_dialog.exe()
+
+    def broadcast_transactions(self, force=False):
+        def on_success(sulcess):
+            self.will_list_widget.update()
+            if sulcess:
+                _logger.info("error, some transaction was not sent")
+                self.show_warning(_("Some transaction was not broadcasted"))
+                return
+            _logger.debug("OK, sulcess transaction was sent")
+            self.show_message(
+                _("All transactions are broadcasted to respective Will-Executors")
+            )
+
+        def on_failure(exec_info):
+            log_error(exec_info, self.bal_window)
+            # a,b,c = err
+            # _logger.error(f"fail to broadcast transactions:{err}")
+            # _logger.error(f"error: {b}")
+            # _logger.error("traceback ")
+            # tb = c
+            # while tb is not None:
+            #    frame = tb.tb_frame
+            #    _logger.error("file:", frame.f_code.co_filename)
+            #    _logger.error("name:", frame.f_code.co_name)
+            #    _logger.error("line:", tb.tb_lineno)
+            #    _logger.error("lasti:", tb.tb_lasti)
+            #    tb = tb.tb_next
+
+        task = partial(self.push_transactions_to_willexecutors, force)
+        msg = _("Selecting Will-Executors")
+        self.waiting_dialog = BalWaitingDialog(
+            self, msg, task, on_success, on_failure, exe=False
+        )
+        self.waiting_dialog.exe()
+
+    def push_transactions_to_willexecutors(self, force=False):
+        willexecutors = Willexecutors.get_willexecutor_transactions(self.willitems)
+
+        def getMsg(willexecutors):
+            msg = "Broadcasting Transactions to Will-Executors:\n"
+            for url in willexecutors:
+                msg += f"{url}:\t{willexecutors[url]['broadcast_status']}\n"
+            return msg
+
+        error = False
+        for url in willexecutors:
+            if self.waiting_dialog._stopping:
+                return
+            willexecutor = willexecutors[url]
+            self.waiting_dialog.update(getMsg(willexecutors))
+            if "txs" in willexecutor:
+                try:
+                    if Willexecutors.push_transactions_to_willexecutor(
+                        willexecutors[url]
+                    ):
+                        for wid in willexecutors[url]["txsids"]:
+                            self.willitems[wid].set_status("PUSHED", True)
+                        willexecutors[url]["broadcast_status"] = _("Success")
+                    else:
+                        for wid in willexecutors[url]["txsids"]:
+                            self.willitems[wid].set_status("PUSH_FAIL", True)
+                            error = True
+                        willexecutors[url]["broadcast_status"] = _("Failed")
+                    del willexecutor["txs"]
+                except Willexecutors.AlreadyPresentException:
+                    for wid in willexecutor["txsids"]:
+                        if self.waiting_dialog._stopping:
+                            return
+                        self.waiting_dialog.update(
+                            "checking {} - {} : {}".format(
+                                self.willitems[wid].we["url"], wid, "Waiting"
+                            )
+                        )
+                        w = self.willitems[wid]
+                        w.set_check_willexecutor(
+                            Willexecutors.check_transaction(wid, w.we["url"])
+                        )
+                        self.waiting_dialog.update(
+                            "checked {} - {} : {}".format(
+                                self.willitems[wid].we["url"],
+                                wid,
+                                self.willitems[wid].get_status("CHECKED"),
+                            )
+                        )
+
+        if error:
+            return True
+
+    def export_json_file(self, path):
+        for wid in self.willitems:
+            self.willitems[wid].set_status("EXPORTED", True)
+            self.will[wid] = self.willitems[wid].to_dict()
+        write_json_file(path, self.will)
+
+    def export_will(self):
+        try:
+            export_meta_gui(self.window, "will.json", self.export_json_file)
+        except Exception as e:
+            self.show_error(str(e))
+            raise e
+
+    def import_will(self):
+        def sulcess():
+            self.will_list_widget.update_will(self.willitems)
+
+        import_meta_gui(self.window, _("will"), self.import_json_file, sulcess)
+
+    def import_json_file(self, path):
+        try:
+            data = read_json_file(path)
+            willitems = {}
+            for k, v in data.items():
+                data[k]["tx"] = tx_from_any(v["tx"])
+                willitems[k] = WillItem(data[k], _id=k)
+            self.update_will(willitems)
+        except Exception as e:
+            raise e
+            # raise FileImportFailed(_("Invalid will file"))
+
+    def check_transactions_task(self, will):
+        start = time.time()
+        for wid, w in will.items():
+            if self.waiting_dialog._stopping:
+                return
+            if w.we:
+                self.waiting_dialog.update(
+                    "checking transaction: {}\n willexecutor: {}".format(wid, w.we["url"])
+                )
+
+                w.set_check_willexecutor(Willexecutors.check_transaction(wid, w.we["url"]))
+
+        if time.time() - start < 3:
+            time.sleep(3 - (time.time() - start))
+
+    def check_transactions(self, will):
+        def on_success(result):
+            if hasattr(self,"waiting_dialog"):
+                del self.waiting_dialog
+            self.update_all()
+            pass
+
+        def on_failure(exec_info):
+            log_error(exec_info, self)
+            # _logger.error(f"error checking transactions {e}")
+            # pass
+
+        task = partial(self.check_transactions_task, will)
+        msg = _("Check Transaction")
+        self.waiting_dialog = BalWaitingDialog(
+            self, msg, task, on_success, on_failure, exe=False
+        )
+        self.waiting_dialog.exe()
+
+    def update_willexecutor_list_widget(self, parent, willexecutors):
+        try:
+            parent.willexecutors_list.update(willexecutors)
+            parent.will_executor_list_widget.update()
+        except Exception as e:
+            _logger.error(f"impossible to update will_executor_list_widget {e}")
+        self.will_executors.update()
+
+    def download_list(self, willexecutors, fn_on_success, fn_on_failure=None):
+
+        def on_success(result):
+            self.willexecutors.update(result)
+            fn_on_success(result)
+
+        def on_failure(exec_info):
+            fn_on_failure(exec_info)
+
+        if fn_on_failure is None:
+            fn_on_failure = log_error
+        welist_server = self.bal_plugin.WELIST_SERVER.get()
+        task = partial(Willexecutors.download_list, willexecutors, welist_server)
+        msg = _(f"Downloading willexecutors list from {welist_server}")
+        self.waiting_dialog = BalWaitingDialog(
+            self, msg, task, on_success, on_failure, exe=False
+        )
+        self.waiting_dialog.exe()
+
+    def ping_willexecutors_task(self, wes):
+        _logger.info("ping willexecutots task")
+        pinged = []
+        failed = []
+
+        def get_title():
+            msg = _("Ping Will-Executors:")
+            msg += "\n\n"
+            for url in wes:
+                urlstr = "{:<50}: ".format(url[:50])
+                if url in pinged:
+                    urlstr += "Ok"
+                elif url in failed:
+                    urlstr += "Ko"
+                else:
+                    urlstr += "--"
+                urlstr += "\n"
+                msg += urlstr
+
+            return msg
+
+        for url, we in wes.items():
+            try:
+                self.waiting_dialog.update(get_title())
+            except Exception:
+                pass
+            wes[url] = Willexecutors.get_info_task(url, we)
+            if wes[url]["status"] == "KO":
+                failed.append(url)
+            else:
+                pinged.append(url)
+
+    def ping_willexecutors(self, wes, fn_on_success, fn_on_failure=None):
+        def on_success(result):
+            fn_on_success(result)
+
+        def on_failure(exec_info):
+            fn_on_failure(exec_info)
+
+        if not fn_on_failure:
+            fn_on_failure = log_error
+        _logger.info("ping willexecutors")
+        task = partial(self.ping_willexecutors_task, wes)
+        msg = _("Ping Will-Executors")
+        self.waiting_dialog = BalWaitingDialog(
+            self, msg, task, on_success, on_failure, exe=False
+        )
+        self.waiting_dialog.exe()
+
+    def preview_modal_dialog(self):
+        self.dw = WillDetailDialog(self)
+        self.dw.show()
+
+    def update_all(self):
+        try:
+            Will.add_willtree(self.willitems)
+            all_utxos = self.wallet.get_utxos()
+            utxos_list = Will.utxos_strs(all_utxos)
+            Will.check_invalidated(self.willitems, utxos_list, self.wallet)
+
+            self.will_list_widget.update_will(self.willitems)
+            self.heirs_tab.update()
+            self.will_tab.update()
+            self.will_list_widget.update()
+        except Exception as e:
+            _logger.error(f"error while updating window: {e}")
+
+

bal/manifest.json

@@ -0,0 +1,10 @@
+{
+    "name": "bal",
+    "fullname": "Bitcoin After Life",
+    "version": "0.2.8",
+    "description": "Provides free and decentralized Bitcoin inheritance support. Build time-locked 'will' transactions that transfer funds to your heirs if you stop refreshing them (dead-man's switch), optionally relayed by will-executor servers.",
+    "author": "Svatantrya",
+    "licence": "MIT",
+    "available_for": ["qt"],
+    "icon": "icons/bal32x32.png"
+}

bal/qt.py

@@ -0,0 +1,83 @@
+"""
+bal.qt
+======
+
+Compatibility shim for Electrum's plugin loader.
+
+Electrum loads a Qt plugin by importing the ``qt`` module of the plugin package
+and looking for a ``Plugin`` class.  The real implementation lives in the
+well-separated ``bal.gui.qt`` sub-package, so this module re-exports the
+``Plugin`` class from ``bal.gui.qt.plugin``.
+
+Why this file is not a one-line relative import
+-----------------------------------------------
+A plain ``from .gui.qt.plugin import Plugin`` works fine when the plugin is
+installed as an *internal* plugin (under ``electrum/plugins/bal``).  However,
+when the very same code is loaded as an *external* plugin from a ``.zip``,
+Electrum 4.7.x imports the package under the synthetic top-level name
+``electrum_external_plugins.bal`` and only executes the package ``__init__`` and
+this ``qt`` module.  It never registers the intermediate parent packages
+(``electrum_external_plugins`` itself, ``...bal.gui``, ``...bal.gui.qt``).  As a
+result, a relative import that has to walk up to those parents fails with::
+
+    ModuleNotFoundError: No module named 'electrum_external_plugins'
+
+To make the plugin work *both* as an internal package and as an external zip,
+this shim resolves and imports ``Plugin`` defensively:
+
+1. It works out the name of the package this module lives in
+   (``__package__``), whatever Electrum decided to call it.
+2. It makes sure every parent package in that chain exists in
+   ``sys.modules`` so Python's import machinery can resolve sub-modules.
+3. It imports the ``.gui.qt.plugin`` sub-module via :func:`importlib.import_module`
+   using the resolved absolute name.
+
+This keeps the clean ``core`` / ``gui`` layout while staying robust to how the
+plugin is loaded.
+"""
+
+import importlib
+import sys
+
+
+def _ensure_parent_packages(pkg_name: str) -> None:
+    """Make sure every ancestor package of *pkg_name* is in ``sys.modules``.
+
+    When loaded from a zip as an external plugin, Electrum only executes the
+    plugin package ``__init__`` and the ``qt`` module.  The synthetic root
+    package (e.g. ``electrum_external_plugins``) and any intermediate packages
+    may be missing from ``sys.modules``, which breaks relative/absolute
+    sub-module imports.  We backfill them here using this module's own loader
+    so that ``importlib`` can find sibling sub-packages.
+    """
+    parts = pkg_name.split(".")
+    # Walk from the top-most ancestor down to (but not including) pkg_name.
+    for i in range(1, len(parts)):
+        ancestor = ".".join(parts[:i])
+        if ancestor in sys.modules:
+            continue
+        try:
+            importlib.import_module(ancestor)
+        except Exception:
+            # The synthetic root (e.g. 'electrum_external_plugins') often has no
+            # real spec.  Create a minimal namespace package stub so that the
+            # import machinery can still resolve its children.
+            import types
+
+            module = types.ModuleType(ancestor)
+            module.__path__ = []  # mark as a (namespace) package
+            sys.modules[ancestor] = module
+
+
+# The package this module belongs to. Could be 'electrum.plugins.bal' (internal)
+# or 'electrum_external_plugins.bal' (external zip), depending on how Electrum
+# loaded us.
+_PKG = __package__ or "bal"
+
+_ensure_parent_packages(_PKG)
+
+# Import the real implementation using the fully-qualified, run-time package
+# name so it works regardless of the synthetic prefix Electrum assigned.
+_plugin_module = importlib.import_module(_PKG + ".gui.qt.plugin")
+
+Plugin = _plugin_module.Plugin  # noqa: F401  (re-exported for Electrum)

bal/wallet_util/README.md

@@ -0,0 +1,50 @@
+## README
+
+### Overview
+This tool provides two entry points: a CLI script (bal_wallet_utils.py) and a Qt GUI script (bal_wallet_utils_qt.py) that operate against an Electrum source tree.
+
+### Installation / Preparation
+1. Copy both files into the Electrum project root (the folder that contains the Electrum source package):
+   - bal_wallet_utils.py
+   - bal_wallet_utils_qt.py
+
+2. Activate the Electrum Python environment (the virtualenv used to run Electrum). Example (PowerShell, adjust path to your venv):
+```
+.\env\Scripts\Activate.ps1
+```
+or (cmd):
+```
+env\Scripts\activate.bat
+```
+
+### Running
+- CLI version:
+```
+python bal_wallet_utils.py
+```
+- Qt GUI version:
+```
+python bal_wallet_utils_qt.py
+```
+
+### Building a Windows executable with PyInstaller
+From the project root (with the Electrum environment active), you can build the Qt executable using PyInstaller. Example command (adjust the paths if your environment path differs):
+```
+pyinstaller.exe --onefile --noconsole --add-data "electrum\currencies.json;electrum" --add-data "electrum\bip39_wallet_formats.json;electrum" --add-data "electrum\lnwire\peer_wire.csv;electrum\lnwire" --add-data "electrum\lnwire\onion_wire.csv;electrum\lnwire" --add-binary "env/Lib/site-packages\electrum_ecc\libsecp256k1-6.dll;electrum_ecc" bal_wallet_utils_qt.py
+```
+
+Notes:
+- Run the command from the project root so relative paths resolve correctly.
+- On Windows the --add-data and --add-binary arguments use ";" to separate source and destination.
+- If electrum expects additional data files or native DLLs, include them with additional --add-data / --add-binary flags.
+- For debugging include --onedir first to inspect the created folder before using --onefile.
+
+### Troubleshooting
+- If PyInstaller is not found, run it via Python:
+```
+python -m PyInstaller <same arguments>
+```
+- If the frozen exe fails because DLLs or JSON files are missing, add those files explicitly with --add-data or --add-binary.
+- Test the build on a clean Windows VM to ensure all runtime dependencies are included.
+
+License and attribution: include your preferred license or attribution details here.

bal/wallet_util/bal_wallet_utils.py

@@ -0,0 +1,81 @@
+#!env/bin/python3
+import getpass
+import json
+import os
+import sys
+
+from electrum.storage import WalletStorage
+from electrum.util import MyEncoder
+
+default_fees = 100
+
+
+def fix_will_settings_tx_fees(json_wallet):
+    tx_fees = json_wallet.get("will_settings", {}).get("tx_fees", False)
+    have_to_update = False
+    if tx_fees:
+        json_wallet["will_settings"]["baltx_fees"] = tx_fees
+        del json_wallet["will_settings"]["tx_fees"]
+        have_to_update = True
+    for txid, willitem in json_wallet["will"].items():
+        tx_fees = willitem.get("tx_fees", False)
+        if tx_fees:
+            json_wallet["will"][txid]["baltx_fees"] = tx_fees
+            del json_wallet["will"][txid]["tx_fees"]
+            have_to_update = True
+    return have_to_update
+
+
+def uninstall_bal(json_wallet):
+    if "will_settings" in json_wallet:
+        del json_wallet["will_settings"]
+    if "will" in json_wallet:
+        del json_wallet["will"]
+    if "heirs" in json_wallet:
+        del json_wallet["heirs"]
+    return True
+
+
+def save(json_wallet, storage):
+    human_readable = not storage.is_encrypted()
+    storage.write(
+        json.dumps(
+            json_wallet,
+            indent=4 if human_readable else None,
+            sort_keys=bool(human_readable),
+            cls=MyEncoder,
+        )
+    )
+
+
+def read_wallet(path, password=False):
+    storage = WalletStorage(path)
+    if storage.is_encrypted():
+        if not password:
+            password = getpass.getpass("Enter wallet password: ", stream=None)
+        storage.decrypt(password)
+    data = storage.read()
+    json_wallet = json.loads("[" + data + "]")[0]
+    return json_wallet, storage
+
+
+if __name__ == "__main__":
+    if len(sys.argv) < 3:
+        print("usage: ./bal_wallet_utils <command> <wallet path>")
+        print("available commands: uninstall, fix")
+        exit(1)
+    if not os.path.exists(sys.argv[2]):
+        print("Error: wallet not found")
+        exit(1)
+    command = sys.argv[1]
+    path = sys.argv[2]
+    json_wallet, storage = read_wallet(path)
+    have_to_save = False
+    if command == "fix":
+        have_to_save = fix_will_settings_tx_fees(json_wallet)
+    if command == "uninstall":
+        have_to_save = uninstall_bal(json_wallet)
+    if have_to_save:
+        save(json_wallet, storage)
+    else:
+        print("nothing to do")

bal/wallet_util/bal_wallet_utils_qt.py

@@ -0,0 +1,199 @@
+#!/usr/bin/env python3
+import json
+import os
+import sys
+
+from bal_wallet_utils import fix_will_settings_tx_fees, save, uninstall_bal
+from electrum.storage import WalletStorage
+from PyQt6.QtWidgets import (
+    QApplication,
+    QFileDialog,
+    QGroupBox,
+    QHBoxLayout,
+    QLabel,
+    QLineEdit,
+    QMainWindow,
+    QPushButton,
+    QTextEdit,
+    QVBoxLayout,
+    QWidget,
+)
+
+
+class WalletUtilityGUI(QMainWindow):
+    def __init__(self):
+        super().__init__()
+        self.init_ui()
+
+    def init_ui(self):
+        self.setWindowTitle("BAL Wallet Utility")
+        self.setFixedSize(500, 400)
+
+        # Central widget
+        central_widget = QWidget()
+        self.setCentralWidget(central_widget)
+
+        # Main layout
+        layout = QVBoxLayout(central_widget)
+
+        # Wallet input group
+        wallet_group = QGroupBox("Wallet Settings")
+        wallet_layout = QVBoxLayout(wallet_group)
+
+        # Wallet path
+        wallet_path_layout = QHBoxLayout()
+        wallet_path_layout.addWidget(QLabel("Wallet Path:"))
+        self.wallet_path_edit = QLineEdit()
+        self.wallet_path_edit.setPlaceholderText("Select wallet path...")
+        wallet_path_layout.addWidget(self.wallet_path_edit)
+
+        self.browse_btn = QPushButton("Browse...")
+        self.browse_btn.clicked.connect(self.browse_wallet)
+        wallet_path_layout.addWidget(self.browse_btn)
+
+        wallet_layout.addLayout(wallet_path_layout)
+
+        # Password
+        password_layout = QHBoxLayout()
+        password_layout.addWidget(QLabel("Password:"))
+        self.password_edit = QLineEdit()
+        self.password_edit.setEchoMode(QLineEdit.EchoMode.Password)
+        self.password_edit.setPlaceholderText("Enter password (if encrypted)")
+        password_layout.addWidget(self.password_edit)
+
+        wallet_layout.addLayout(password_layout)
+
+        layout.addWidget(wallet_group)
+
+        # Output area
+        output_group = QGroupBox("Output")
+        output_layout = QVBoxLayout(output_group)
+
+        self.output_text = QTextEdit()
+        self.output_text.setReadOnly(True)
+        output_layout.addWidget(self.output_text)
+
+        layout.addWidget(output_group)
+
+        # Action buttons
+        buttons_layout = QHBoxLayout()
+
+        self.fix_btn = QPushButton("Fix")
+        self.fix_btn.clicked.connect(self.fix_wallet)
+        self.fix_btn.setEnabled(False)
+        buttons_layout.addWidget(self.fix_btn)
+
+        self.uninstall_btn = QPushButton("Uninstall")
+        self.uninstall_btn.clicked.connect(self.uninstall_wallet)
+        self.uninstall_btn.setEnabled(False)
+        buttons_layout.addWidget(self.uninstall_btn)
+
+        layout.addLayout(buttons_layout)
+
+        # Connections to enable buttons when path is entered
+        self.wallet_path_edit.textChanged.connect(self.check_inputs)
+
+    def browse_wallet(self):
+        file_path, _ = QFileDialog.getOpenFileName(
+            self, "Select Wallet", "*", "Electrum Wallet (*)"
+        )
+        if file_path:
+            self.wallet_path_edit.setText(file_path)
+
+    def check_inputs(self):
+        wallet_path = self.wallet_path_edit.text().strip()
+        has_path = bool(wallet_path) and os.path.exists(wallet_path)
+
+        self.fix_btn.setEnabled(has_path)
+        self.uninstall_btn.setEnabled(has_path)
+
+    def log_message(self, message):
+        self.output_text.append(message)
+
+    def fix_wallet(self):
+        self.process_wallet("fix")
+
+    def uninstall_wallet(self):
+        self.log_message(
+            "WARNING: This will remove all BAL settings. This operation cannot be undone."
+        )
+        self.process_wallet("uninstall")
+
+    def process_wallet(self, command):
+        wallet_path = self.wallet_path_edit.text().strip()
+        password = self.password_edit.text()
+
+        if not wallet_path:
+            self.log_message("ERROR: Please enter wallet path")
+            return
+
+        if not os.path.exists(wallet_path):
+            self.log_message("ERROR: Wallet not found")
+            return
+
+        try:
+            self.log_message(f"Processing wallet: {wallet_path}")
+
+            storage = WalletStorage(wallet_path)
+
+            # Decrypt if necessary
+            if storage.is_encrypted():
+                if not password:
+                    self.log_message(
+                        "ERROR: Wallet is encrypted, please enter password"
+                    )
+                    return
+
+                try:
+                    storage.decrypt(password)
+                    self.log_message("Wallet decrypted successfully")
+                except Exception as e:
+                    self.log_message(f"ERROR: Wrong password: {str(e)}")
+                    return
+
+            # Read wallet
+            data = storage.read()
+            json_wallet = json.loads("[" + data + "]")[0]
+
+            have_to_save = False
+            message = ""
+
+            if command == "fix":
+                have_to_save = fix_will_settings_tx_fees(json_wallet)
+                message = (
+                    "Fix applied successfully" if have_to_save else "No fix needed"
+                )
+
+            elif command == "uninstall":
+                have_to_save = uninstall_bal(json_wallet)
+                message = (
+                    "BAL uninstalled successfully"
+                    if have_to_save
+                    else "No BAL settings found to uninstall"
+                )
+
+            if have_to_save:
+                try:
+                    save(json_wallet, storage)
+                    self.log_message(f"SUCCESS: {message}")
+                except Exception as e:
+                    self.log_message(f"Save error: {str(e)}")
+            else:
+                self.log_message(f"INFO: {message}")
+
+        except Exception as e:
+            error_msg = f"ERROR: Processing failed: {str(e)}"
+            self.log_message(error_msg)
+
+
+def main():
+    app = QApplication(sys.argv)
+
+    window = WalletUtilityGUI()
+    window.show()
+
+    return app.exec()
+
+
+if __name__ == "__main__":
+    sys.exit(main())

build_zip.py

@@ -0,0 +1,73 @@
+#!/usr/bin/env python3
+"""Build a clean, zipimport-friendly distribution archive of the BAL plugin.
+
+Electrum loads external plugins from a ``.zip`` using Python's ``zipimport``.
+``zipimport`` is picky about the archive layout, so this builder deliberately:
+
+  * writes **only files** (no explicit directory entries) — some Electrum
+    portable builds choke on directory records inside the archive;
+  * uses standard DEFLATE compression (well supported by ``zipimport``);
+  * emits entries in a deterministic, sorted order so the archive is
+    reproducible (stable SHA-256);
+  * skips ``__pycache__`` directories and compiled ``*.pyc``/``*.pyo`` files.
+
+The archive keeps the top-level ``bal/`` directory so that the package is
+importable as ``bal`` (and Electrum derives ``dirname='bal'`` from the path of
+``bal/manifest.json``).
+
+Usage::
+
+    python3 build_zip.py [output.zip]
+
+Prints the resulting size and SHA-256 so the download can be integrity-checked.
+"""
+
+import hashlib
+import os
+import sys
+import zipfile
+
+SRC_ROOT = "bal"
+DEFAULT_OUT = "bal-electrum-plugin.zip"
+
+
+def build(out_path: str) -> None:
+    if os.path.exists(out_path):
+        os.remove(out_path)
+
+    files = []
+    for dirpath, dirnames, filenames in os.walk(SRC_ROOT):
+        # prune cache dirs in place so os.walk does not descend into them
+        dirnames[:] = [d for d in dirnames if d != "__pycache__"]
+        for fn in filenames:
+            if fn.endswith((".pyc", ".pyo")):
+                continue
+            files.append(os.path.join(dirpath, fn))
+    files.sort()
+
+    with zipfile.ZipFile(
+        out_path, "w", compression=zipfile.ZIP_DEFLATED, compresslevel=6
+    ) as z:
+        for f in files:
+            arc = f.replace(os.sep, "/")  # forward slashes inside the archive
+            z.write(f, arc)
+
+    # Integrity + summary
+    with zipfile.ZipFile(out_path) as z:
+        bad = z.testzip()
+        if bad is not None:
+            raise SystemExit(f"ERROR: corrupt entry in archive: {bad}")
+        names = z.namelist()
+        if not any(n.endswith("manifest.json") for n in names):
+            raise SystemExit("ERROR: manifest.json missing from archive")
+
+    data = open(out_path, "rb").read()
+    print(f"built : {out_path}")
+    print(f"files : {len(files)}")
+    print(f"size  : {len(data)} bytes")
+    print(f"sha256: {hashlib.sha256(data).hexdigest()}")
+
+
+if __name__ == "__main__":
+    out = sys.argv[1] if len(sys.argv) > 1 else DEFAULT_OUT
+    build(out)

tests/external_zip_test.py

@@ -0,0 +1,64 @@
+"""Regression test: load the plugin the way Electrum loads an *external* zip.
+
+When a user installs the plugin via Electrum's "Plugins" dialog from a .zip,
+Electrum 4.7.x imports it under the synthetic top-level package
+``electrum_external_plugins.bal`` and only executes the package ``__init__``
+and the ``qt`` module.  It does NOT pre-register the synthetic root package
+nor the nested ``gui`` / ``gui.qt`` sub-packages.
+
+A naive ``from .gui.qt.plugin import Plugin`` in ``qt.py`` therefore fails with::
+
+    ModuleNotFoundError: No module named 'electrum_external_plugins'
+
+This test reproduces that exact loading sequence against the built zip and
+asserts that the resilient ``qt.py`` shim resolves the ``Plugin`` class.
+
+Usage:
+    QT_QPA_PLATFORM=offscreen \
+    PYTHONPATH=<electrum-src> \
+    python3 tests/external_zip_test.py <path-to-bal-electrum-plugin.zip>
+"""
+
+import importlib.util
+import sys
+import zipimport
+
+
+def main(zip_path: str) -> int:
+    base = "electrum_external_plugins.bal"
+    gui = "qt"
+    dirname = "bal"  # directory name inside the zip archive
+
+    def exec_module_from_spec(spec, path):
+        # Mirrors electrum.plugin.PluginManager.exec_module_from_spec
+        module = importlib.util.module_from_spec(spec)
+        sys.modules[path] = module
+        spec.loader.exec_module(module)
+        return module
+
+    zi = zipimport.zipimporter(zip_path)
+
+    # Step 1: load the package __init__ as electrum_external_plugins.bal
+    init_spec = zi.find_spec(dirname)
+    assert init_spec is not None, "could not find package __init__ inside zip"
+    exec_module_from_spec(init_spec, base)
+
+    # Step 2: load the qt entry-point as electrum_external_plugins.bal.qt
+    full = f"{base}.{gui}"
+    spec = importlib.util.find_spec(full)
+    assert spec is not None, f"could not find spec for {full!r}"
+    module = exec_module_from_spec(spec, full)
+
+    # The loader expects a `Plugin` class to be exported.
+    plugin_cls = getattr(module, "Plugin", None)
+    assert plugin_cls is not None, "qt module did not export a Plugin class"
+
+    print(f"[OK] external zip loads Plugin -> {plugin_cls!r}")
+    return 0
+
+
+if __name__ == "__main__":
+    if len(sys.argv) != 2:
+        print(__doc__)
+        sys.exit(2)
+    sys.exit(main(sys.argv[1]))

tests/smoke_test.py

@@ -0,0 +1,92 @@
+"""
+Smoke test for the BAL Electrum plugin.
+
+Goal: after every refactor step, prove that the plugin still imports cleanly
+under a real Electrum 4.7.2 + PyQt6 install, and that a handful of pure-logic
+behaviours produce *exactly* the same results as before (regression guard).
+
+Run with:
+    QT_QPA_PLATFORM=offscreen python3 tests/smoke_test.py <PLUGIN_IMPORT_NAME>
+
+where <PLUGIN_IMPORT_NAME> is the dotted module path the plugin is reachable
+at, e.g. "electrum.plugins.BAL" (original) or "electrum.plugins.bal" (new).
+"""
+import importlib
+import sys
+
+PKG = sys.argv[1] if len(sys.argv) > 1 else "electrum.plugins.BAL"
+
+
+def imp(mod):
+    return importlib.import_module(f"{PKG}.{mod}")
+
+
+def main():
+    # --- Qt must be initialised before importing any gui module ---
+    from PyQt6.QtWidgets import QApplication  # noqa
+    _app = QApplication.instance() or QApplication([])
+
+    results = {}
+
+    # 1) Core modules import (these must be GUI-free).
+    bal = imp_core("bal", "core.plugin_base")
+    util = imp_core("util", "core.util")
+    heirs = imp_core("heirs", "core.heirs")
+    will = imp_core("will", "core.will")
+    we = imp_core("willexecutors", "core.willexecutors")
+
+    # 2) GUI module imports.
+    qt = imp_gui()
+
+    # 3) Behaviour checks (pure logic, must be identical across versions).
+    BalTimestamp = bal.BalTimestamp
+    assert BalTimestamp("30d").duration_to_days() == 30, "BalTimestamp 30d"
+    assert BalTimestamp("1y").duration_to_days() == 365, "BalTimestamp 1y"
+    assert str(BalTimestamp("7d")) == "7d", "BalTimestamp str"
+
+    Util = util.Util
+    assert Util.is_perc("50%") is True
+    assert Util.is_perc("100") is False
+    assert Util.text_to_hex("BAL") == "42414c"
+    assert Util.hex_to_text("42414c") == "BAL"
+    assert Util.int_locktime(days=1) == 86400
+
+    # heirs constants must keep the same column layout (very delicate!)
+    assert heirs.HEIR_ADDRESS == 0
+    assert heirs.HEIR_AMOUNT == 1
+    assert heirs.HEIR_LOCKTIME == 2
+    assert heirs.HEIR_REAL_AMOUNT == 3
+    assert heirs.HEIR_DUST_AMOUNT == 4
+
+    # WillItem default status table must stay intact.
+    assert will.WillItem.STATUS_DEFAULT["VALID"][1] is True
+
+    # 4) Plugin class wiring.
+    assert qt.Plugin.__bases__[0] is bal.BalPlugin
+    for h in ("create_status_bar", "init_menubar", "load_wallet", "close_wallet"):
+        assert hasattr(qt.Plugin, h), f"missing hook {h}"
+
+    print(f"[OK] smoke test passed for package '{PKG}'")
+
+
+def imp_core(old_name, new_name):
+    """Import a core module, trying the new layout first then the old flat one."""
+    for candidate in (new_name, old_name):
+        try:
+            return importlib.import_module(f"{PKG}.{candidate}")
+        except ModuleNotFoundError:
+            continue
+    raise ModuleNotFoundError(f"cannot import {old_name}/{new_name} from {PKG}")
+
+
+def imp_gui():
+    for candidate in ("gui.qt.plugin", "qt"):
+        try:
+            return importlib.import_module(f"{PKG}.{candidate}")
+        except ModuleNotFoundError:
+            continue
+    raise ModuleNotFoundError(f"cannot import gui module from {PKG}")
+
+
+if __name__ == "__main__":
+    main()