wallet: get_tx_info now returns NamedTuple instead of abomination

electrum/gui/kivy/uix/dialogs/tx_dialog.py

@@ -121,11 +121,18 @@ class TxDialog(Factory.Popup):
 
     def update(self):
         format_amount = self.app.format_amount_and_units
-        tx_hash, self.status_str, self.description, self.can_broadcast, self.can_rbf, amount, fee, height, conf, timestamp, exp_n = self.wallet.get_tx_info(self.tx)
-        self.tx_hash = tx_hash or ''
-        if timestamp:
+        tx_details = self.wallet.get_tx_info(self.tx)
+        tx_mined_status = tx_details.tx_mined_status
+        exp_n = tx_details.mempool_depth_bytes
+        amount, fee = tx_details.amount, tx_details.fee
+        self.status_str = tx_details.status
+        self.description = tx_details.label
+        self.can_broadcast = tx_details.can_broadcast
+        self.can_rbf = tx_details.can_bump
+        self.tx_hash = tx_details.txid or ''
+        if tx_mined_status.timestamp:
             self.date_label = _('Date')
-            self.date_str = datetime.fromtimestamp(timestamp).isoformat(' ')[:-3]
+            self.date_str = datetime.fromtimestamp(tx_mined_status.timestamp).isoformat(' ')[:-3]
         elif exp_n:
             self.date_label = _('Mempool depth')
             self.date_str = _('{} from tip').format('%.2f MB'%(exp_n/1000000))
@@ -144,7 +151,7 @@ class TxDialog(Factory.Popup):
         self.fee_str = format_amount(fee) if fee is not None else _('unknown')
         self.can_sign = self.wallet.can_sign(self.tx)
         self.ids.output_list.update(self.tx.get_outputs_for_UI())
-        self.is_local_tx = height == TX_HEIGHT_LOCAL
+        self.is_local_tx = tx_mined_status.height == TX_HEIGHT_LOCAL
         self.update_action_button()
 
     def update_action_button(self):

electrum/gui/qt/transaction_dialog.py

@@ -223,22 +223,25 @@ class TxDialog(QDialog, MessageBoxMixin):
         desc = self.desc
         base_unit = self.main_window.base_unit()
         format_amount = self.main_window.format_amount
-        tx_hash, status, label, can_broadcast, can_rbf, amount, fee, height, conf, timestamp, exp_n = self.wallet.get_tx_info(self.tx)
+        tx_details = self.wallet.get_tx_info(self.tx)
+        tx_mined_status = tx_details.tx_mined_status
+        exp_n = tx_details.mempool_depth_bytes
+        amount, fee = tx_details.amount, tx_details.fee
         size = self.tx.estimated_size()
-        self.broadcast_button.setEnabled(can_broadcast)
+        self.broadcast_button.setEnabled(tx_details.can_broadcast)
         can_sign = not self.tx.is_complete() and \
             (self.wallet.can_sign(self.tx) or bool(self.main_window.tx_external_keypairs))
         self.sign_button.setEnabled(can_sign)
-        self.tx_hash_e.setText(tx_hash or _('Unknown'))
+        self.tx_hash_e.setText(tx_details.txid or _('Unknown'))
         if desc is None:
             self.tx_desc.hide()
         else:
             self.tx_desc.setText(_("Description") + ': ' + desc)
             self.tx_desc.show()
-        self.status_label.setText(_('Status:') + ' ' + status)
+        self.status_label.setText(_('Status:') + ' ' + tx_details.status)
 
-        if timestamp:
-            time_str = datetime.datetime.fromtimestamp(timestamp).isoformat(' ')[:-3]
+        if tx_mined_status.timestamp:
+            time_str = datetime.datetime.fromtimestamp(tx_mined_status.timestamp).isoformat(' ')[:-3]
             self.date_label.setText(_("Date: {}").format(time_str))
             self.date_label.show()
         elif exp_n:

electrum/wallet.py

@@ -38,7 +38,7 @@ import traceback
 from functools import partial
 from numbers import Number
 from decimal import Decimal
-from typing import TYPE_CHECKING, List, Optional, Tuple, Union
+from typing import TYPE_CHECKING, List, Optional, Tuple, Union, NamedTuple
 
 from .i18n import _
 from .util import (NotEnoughFunds, PrintError, UserCancelled, profiler,
@@ -180,6 +180,17 @@ class InternalAddressCorruption(Exception):
                  "Please restore your wallet from seed, and compare the addresses in both files")
 
 
+class TxWalletDetails(NamedTuple):
+    txid: Optional[str]
+    status: str
+    label: str
+    can_broadcast: bool
+    can_bump: bool
+    amount: Optional[int]
+    fee: Optional[int]
+    tx_mined_status: TxMinedInfo
+    mempool_depth_bytes: Optional[int]
+
 
 class Abstract_Wallet(AddressSynchronizer):
     """
@@ -344,25 +355,23 @@ class Abstract_Wallet(AddressSynchronizer):
         return True
         #return self.history.values() != [[]] * len(self.history)
 
-    def get_tx_info(self, tx):
+    def get_tx_info(self, tx) -> TxWalletDetails:
         is_relevant, is_mine, v, fee = self.get_wallet_delta(tx)
         exp_n = None
         can_broadcast = False
         can_bump = False
         label = ''
-        height = conf = timestamp = None
         tx_hash = tx.txid()
+        tx_mined_status = self.get_tx_height(tx_hash)
         if tx.is_complete():
             if self.db.get_transaction(tx_hash):
                 label = self.get_label(tx_hash)
-                tx_mined_status = self.get_tx_height(tx_hash)
-                height, conf, timestamp = tx_mined_status.height, tx_mined_status.conf, tx_mined_status.timestamp
-                if height > 0:
-                    if conf:
-                        status = _("{} confirmations").format(conf)
+                if tx_mined_status.height > 0:
+                    if tx_mined_status.conf:
+                        status = _("{} confirmations").format(tx_mined_status.conf)
                     else:
                         status = _('Not verified')
-                elif height in (TX_HEIGHT_UNCONF_PARENT, TX_HEIGHT_UNCONFIRMED):
+                elif tx_mined_status.height in (TX_HEIGHT_UNCONF_PARENT, TX_HEIGHT_UNCONFIRMED):
                     status = _('Unconfirmed')
                     if fee is None:
                         fee = self.db.get_tx_fee(tx_hash)
@@ -392,7 +401,17 @@ class Abstract_Wallet(AddressSynchronizer):
         else:
             amount = None
 
-        return tx_hash, status, label, can_broadcast, can_bump, amount, fee, height, conf, timestamp, exp_n
+        return TxWalletDetails(
+            txid=tx_hash,
+            status=status,
+            label=label,
+            can_broadcast=can_broadcast,
+            can_bump=can_bump,
+            amount=amount,
+            fee=fee,
+            tx_mined_status=tx_mined_status,
+            mempool_depth_bytes=exp_n,
+        )
 
     def get_spendable_coins(self, domain, config, *, nonlocal_only=False):
         confirmed_only = config.get('confirmed_only', False)