Merge pull request #10991 from f321x/qml_history_calendar_sections

### electrum/gui/qml/components/History.qml
@@ -49,7 +49,9 @@ Pane {
             'mempool': qsTr('Mempool'),
             'today': qsTr('Today'),
             'yesterday': qsTr('Yesterday'),
+            'thisweek': qsTr('Earlier this week'),
             'lastweek': qsTr('Last week'),
+            'thismonth': qsTr('Earlier this month'),
             'lastmonth': qsTr('Last month'),
             'older': qsTr('Older')
         }

### electrum/gui/qml/qetransactionlistmodel.py
@@ -2,7 +2,7 @@
 from typing import TYPE_CHECKING, Dict, Any
 
 from PyQt6.QtCore import pyqtProperty, pyqtSignal, pyqtSlot
-from PyQt6.QtCore import Qt, QAbstractListModel, QModelIndex
+from PyQt6.QtCore import Qt, QAbstractListModel, QModelIndex, QLocale
 
 from electrum.logging import get_logger
 from electrum.util import Satoshis, TxMinedInfo
@@ -168,14 +168,24 @@ def tx_to_model(self, tx_item):
     def get_section_by_timestamp(timestamp):
         txts = datetime.fromtimestamp(timestamp)
         today = datetime.today().replace(hour=0, minute=0, second=0, microsecond=0)
-
-        if txts > today:
+        first_day_of_week = QLocale.system().firstDayOfWeek()
+        # Qt.DayOfWeek and isoweekday() both count Monday=1 .. Sunday=7
+        this_week_start = today - timedelta(days=(today.isoweekday() - first_day_of_week.value) % 7)
+        this_month_start = today.replace(day=1)
+        last_month_start = (this_month_start - timedelta(days=1)).replace(day=1)
+
+        # calendar based, the most specific section wins (e.g. on mondays sunday is 'yesterday', not 'lastweek')
+        if txts >= today:
             return 'today'
-        elif txts > today - timedelta(days=1):
+        elif txts >= today - timedelta(days=1):
             return 'yesterday'
-        elif txts > today - timedelta(days=7):
+        elif txts >= this_week_start:
+            return 'thisweek'
+        elif txts >= this_week_start - timedelta(days=7):
             return 'lastweek'
-        elif txts > today - timedelta(days=31):
+        elif txts >= this_month_start:
+            return 'thismonth'
+        elif txts >= last_month_start:
             return 'lastmonth'
         else:
             return 'older'
@@ -186,7 +196,9 @@ def format_date_by_section(section: str, date: datetime):
         dfmt = {
             'today': '%H:%M',
             'yesterday': '%H:%M',
-            'lastweek': '%a, %H:%M',
+            'thisweek': '%a, %H:%M',
+            'lastweek': '%a %d, %H:%M',
+            'thismonth': '%a %d, %H:%M',
             'lastmonth': '%a %d, %H:%M',
             'older': '%Y-%m-%d %H:%M'
         }

### tests/qml/test_qml_qetransactionlistmodel.py
@@ -1,6 +1,8 @@
 from datetime import datetime
 from unittest.mock import patch
 
+from PyQt6.QtCore import Qt
+
 from electrum.gui.qml.qetransactionlistmodel import QETransactionListModel
 
 from .. import ElectrumTestCase
@@ -11,41 +13,74 @@ class TestQETransactionListModel(ElectrumTestCase):
     def test_get_section_by_timestamp(self):
         f = QETransactionListModel.get_section_by_timestamp
 
-        mock_today = datetime(2023, 6, 15, 0, 0, 0, 0)
-        with patch('electrum.gui.qml.qetransactionlistmodel.datetime') as mock_dt:
+        mock_today = datetime(2023, 6, 15, 0, 0, 0, 0)  # thursday
+        with patch('electrum.gui.qml.qetransactionlistmodel.datetime') as mock_dt, \
+                patch('electrum.gui.qml.qetransactionlistmodel.QLocale') as mock_locale:
             mock_dt.today.return_value = mock_today
             mock_dt.fromtimestamp = datetime.fromtimestamp
+            mock_first_day_of_week = mock_locale.system.return_value.firstDayOfWeek
+            mock_first_day_of_week.return_value = Qt.DayOfWeek.Monday
 
             today_ts = datetime(2023, 6, 15, 10, 30, 0).timestamp()
             self.assertEqual(f(today_ts), 'today')
 
-            today_edge_ts = datetime(2023, 6, 15, 0, 0, 1).timestamp()
+            today_edge_ts = datetime(2023, 6, 15, 0, 0, 0).timestamp()
             self.assertEqual(f(today_edge_ts), 'today')
 
             yesterday_ts = datetime(2023, 6, 14, 15, 0, 0).timestamp()
             self.assertEqual(f(yesterday_ts), 'yesterday')
 
             yesterday_edge_ts = datetime(2023, 6, 13, 23, 59, 59).timestamp()
-            self.assertEqual(f(yesterday_edge_ts), 'lastweek')
+            self.assertEqual(f(yesterday_edge_ts), 'thisweek')
+
+            thisweek_boundary_ts = datetime(2023, 6, 12, 0, 0, 0).timestamp()
+            self.assertEqual(f(thisweek_boundary_ts), 'thisweek')
 
-            lastweek_ts = datetime(2023, 6, 12, 12, 0, 0).timestamp()
+            lastweek_ts = datetime(2023, 6, 11, 23, 59, 59).timestamp()
             self.assertEqual(f(lastweek_ts), 'lastweek')
 
-            lastweek_boundary_ts = datetime(2023, 6, 8, 12, 0, 0).timestamp()
+            lastweek_boundary_ts = datetime(2023, 6, 5, 0, 0, 0).timestamp()
             self.assertEqual(f(lastweek_boundary_ts), 'lastweek')
 
-            lastmonth_ts = datetime(2023, 6, 5, 9, 0, 0).timestamp()
+            thismonth_ts = datetime(2023, 6, 4, 23, 59, 59).timestamp()
+            self.assertEqual(f(thismonth_ts), 'thismonth')
+
+            thismonth_boundary_ts = datetime(2023, 6, 1, 0, 0, 0).timestamp()
+            self.assertEqual(f(thismonth_boundary_ts), 'thismonth')
+
+            lastmonth_ts = datetime(2023, 5, 31, 23, 59, 59).timestamp()
             self.assertEqual(f(lastmonth_ts), 'lastmonth')
 
-            lastmonth_boundary_ts = datetime(2023, 5, 15, 8, 0, 0).timestamp()
+            lastmonth_boundary_ts = datetime(2023, 5, 1, 0, 0, 0).timestamp()
             self.assertEqual(f(lastmonth_boundary_ts), 'lastmonth')
 
-            older_ts = datetime(2023, 5, 14, 10, 0, 0).timestamp()
+            older_ts = datetime(2023, 4, 30, 23, 59, 59).timestamp()
             self.assertEqual(f(older_ts), 'older')
 
             much_older_ts = datetime(2022, 1, 1, 0, 0, 0).timestamp()
             self.assertEqual(f(much_older_ts), 'older')
 
+            # the week boundaries follow the locale's first day of the week
+            sunday_ts = datetime(2023, 6, 11, 12, 0, 0).timestamp()
+            prev_sunday_ts = datetime(2023, 6, 4, 12, 0, 0).timestamp()
+            prev_saturday_ts = datetime(2023, 6, 3, 12, 0, 0).timestamp()
+            self.assertEqual(f(sunday_ts), 'lastweek')
+            self.assertEqual(f(prev_sunday_ts), 'thismonth')
+            mock_first_day_of_week.return_value = Qt.DayOfWeek.Sunday
+            self.assertEqual(f(sunday_ts), 'thisweek')
+            self.assertEqual(f(prev_sunday_ts), 'lastweek')
+            self.assertEqual(f(prev_saturday_ts), 'thismonth')
+            mock_first_day_of_week.return_value = Qt.DayOfWeek.Saturday
+            self.assertEqual(f(sunday_ts), 'thisweek')
+            self.assertEqual(f(prev_saturday_ts), 'lastweek')
+
+            # the more specific section wins where weeks and months overlap
+            mock_first_day_of_week.return_value = Qt.DayOfWeek.Monday
+            mock_dt.today.return_value = datetime(2023, 5, 2, 0, 0, 0, 0)  # tuesday
+            self.assertEqual(f(datetime(2023, 5, 1, 12, 0, 0).timestamp()), 'yesterday')
+            self.assertEqual(f(datetime(2023, 4, 30, 12, 0, 0).timestamp()), 'lastweek')
+            self.assertEqual(f(datetime(2023, 4, 23, 12, 0, 0).timestamp()), 'lastmonth')
+
     def test_format_date_by_section(self):
         f = QETransactionListModel.format_date_by_section
 
@@ -57,9 +92,15 @@ def test_format_date_by_section(self):
         result = f('yesterday', test_date)
         self.assertEqual(result, '14:30')
 
-        result = f('lastweek', test_date)
+        result = f('thisweek', test_date)
         self.assertEqual(result, 'Thu, 14:30')
 
+        result = f('lastweek', test_date)
+        self.assertEqual(result, 'Thu 15, 14:30')
+
+        result = f('thismonth', test_date)
+        self.assertEqual(result, 'Thu 15, 14:30')
+
         result = f('lastmonth', test_date)
         self.assertEqual(result, 'Thu 15, 14:30')