history export: make fees bitcoin, add hook, rm local tx

Change fees from sats to bitcoin so the fee value is consistent with the
other values.
Fixes #10445

Also adds a plugin hook so plugins can create fancy history exports.

And stops adding unconfirmed/local transactions to the history as they
are unordered and make the export non-deterministic. Also transactions
that haven't happened yet don't seem useful for accounting.

electrum/gui/qt/history_list.py

@@ -845,9 +845,9 @@ class HistoryList(MyTreeView, AcceptFileDragDrop):
             return
         try:
             self.wallet.export_history_to_file(
-                self.main_window.fx if self.hm.should_show_fiat() else None,
-                filename,
-                csv_button.isChecked(),
+                fx=self.main_window.fx if self.hm.should_show_fiat() else None,
+                file_path=filename,
+                is_csv=csv_button.isChecked(),
             )
         except (IOError, os.error) as reason:
             export_error_label = _("Electrum was unable to produce a transaction export.")

electrum/wallet.py

@@ -3614,9 +3614,14 @@ class Abstract_Wallet(ABC, Logger, EventListener):
         util.trigger_callback('wallet_updated', self)
         self.adb.set_future_tx(tx.txid(), wanted_height=wanted_height)
 
-    def export_history_to_file(self, fx: Optional['FxThread'], file_path: str, is_csv: bool):
+    def export_history_to_file(self, *, fx: Optional['FxThread'], file_path: str, is_csv: bool):
+        """Create a file containing the wallet history in either json or csv format, e.g. for bookkeeping."""
+        if run_hook('export_history_to_file', self, fx, file_path, is_csv):
+            return  # allow for plugins to create history fancy export
         txns = self.get_full_history(fx=fx)
-        lines = []
+        # remove unconfirmed/local tx as their ordering is not deterministic, and they don't seem
+        # useful for a wallet export (can't do accounting on a tx that hasn't happened yet)
+        txns = {k: v for k, v in txns.items() if v['timestamp'] not in (None, 0)}
 
         def get_all_fees_paid_by_item(h_item: dict) -> Tuple[int, Optional[Fiat]]:
             # gets all fees paid in an item (or group), as the outer group doesn't contain the
@@ -3642,9 +3647,10 @@ class Abstract_Wallet(ABC, Logger, EventListener):
 
             return fees_sat, fees_fiat
 
+        lines = []
         if is_csv:
             # sort by timestamp so the generated csv is more understandable on first sight
-            txns = dict(sorted(txns.items(), key=lambda h_item: h_item[1]['timestamp'] or 0))
+            txns = dict(sorted(txns.items(), key=lambda h_item: h_item[1]['timestamp']))
             for item in txns.values():
                 # tx groups will are shown as single element
                 fees_sat, fees_fiat = get_all_fees_paid_by_item(item)
@@ -3659,7 +3665,7 @@ class Abstract_Wallet(ABC, Logger, EventListener):
                     item['bc_value'],
                     item['ln_value'],
                     item.get('fiat_value', ''),
-                    fees_sat,
+                    util.format_satoshis(fees_sat),
                     str(fees_fiat or ''),
                     item['date']
                 ]
@@ -3676,7 +3682,7 @@ class Abstract_Wallet(ABC, Logger, EventListener):
                                       "amount_chain_bc",
                                       "amount_lightning_bc",
                                       "fiat_value",
-                                      "network_fee_satoshi",
+                                      "network_fee_bc",
                                       "fiat_fee",
                                       "timestamp"])
                 for line in lines: