Preserve historical activity selection (#103)

tests/test_tui.py

@@ -927,6 +927,7 @@ class TestBarGraphTUI:
         for i in range(14):
             d = (datetime(2026, 9, 15) + timedelta(days=i)).strftime("%Y-%m-%d")
             _insert_day(conn, d, bw=1024*1024*100)
+            _insert_local_day(conn, d, bw=1024*1024*100)
         _insert_sample(conn, "2026-09-30T10:00:00+00:00")
         conn.close()
 
@@ -941,11 +942,9 @@ class TestBarGraphTUI:
             assert "Unalloc" in legend
             assert "Zero" in legend
             range_label = str(app.query_one("#bar-range").render())
-            assert "14 days" in range_label
-            assert "UTC" in range_label
+            assert "14 local days" in range_label
             plotted = str(app.query_one("#bar-render").render())
             assert "Writes (" in legend
-            assert "UTC" in range_label
             assert "─" in plotted
 
     @pytest.mark.asyncio
@@ -957,6 +956,7 @@ class TestBarGraphTUI:
         for i in range(14):
             d = (datetime(2026, 9, 15) + timedelta(days=i)).strftime("%Y-%m-%d")
             _insert_day(conn, d, bw=1024*1024*100)
+            _insert_local_day(conn, d, bw=1024*1024*100)
         _insert_sample(conn, "2026-09-30T10:00:00+00:00")
         conn.close()
 
@@ -1030,6 +1030,7 @@ class TestBarGraphTUI:
         for i in range(14):
             d = (datetime(2026, 9, 15) + timedelta(days=i)).strftime("%Y-%m-%d")
             _insert_day(conn, d, bw=1024*1024*100)
+            _insert_local_day(conn, d, bw=1024*1024*100)
         _insert_sample(conn, "2026-09-30T10:00:00+00:00")
         conn.close()
 
@@ -1043,15 +1044,16 @@ class TestBarGraphTUI:
 
             # Newest day is selected initially.
             readout = str(app.query_one("#bar-readout").render())
-            assert "UTC" in readout
-            assert "GB" in readout
+            assert "so_far" in readout
+            assert "W 0.105 GB known" in readout
 
             # Moving left updates the selected-day readout.
             await pilot.press("left")
             await pilot.pause()
             readout = str(app.query_one("#bar-readout").render())
             assert "2026-09" in readout
-            assert "GB" in readout
+            assert "incomplete" in readout
+            assert "W 0.105 GB known" in readout
 
     @pytest.mark.asyncio
     async def test_hourly_drill_down_and_back(self, tmp_path):
@@ -1062,6 +1064,7 @@ class TestBarGraphTUI:
         for i in range(14):
             d = (datetime(2026, 9, 15) + timedelta(days=i)).strftime("%Y-%m-%d")
             _insert_day(conn, d, bw=1024*1024*100)
+            _insert_local_day(conn, d, bw=1024*1024*100)
             # Insert hours for each day
             for h in range(24):
                 hour = "%sT%02d:00:00+00:00" % (d, h)
@@ -1078,30 +1081,27 @@ class TestBarGraphTUI:
             await pilot.pause()
             await pilot.pause()
 
-            # The newest day is selected automatically.
-            assert graph.selected_index == len(graph._day_data) - 1
-            assert graph.view_mode == "daily"
+            assert app.query_one("#activity-tabs").active == "view-history"
+            daily_readout = str(app.query_one("#bar-readout").render())
 
             # Enter drill-down
             await pilot.press("enter")
             await pilot.pause()
-            assert graph.view_mode == "hourly"
-            assert graph.drill_day is not None
-            assert len(graph._hour_data) == 24
+            assert app.query_one("#activity-tabs").active == "view-day"
+            assert "UTC" in str(app.query_one("#bar-readout").render())
 
-            # Five-minute data refreshes retain the selected hour.
-            graph._hourly_selected = 12
-            selected_hour = graph._hour_data[12]["hour"]
+            # Inspection identity survives refresh through visible readout.
+            await pilot.press("left")
+            selected_hour = str(app.query_one("#bar-readout").render())
             app._refresh()
             await pilot.pause()
-            assert graph.view_mode == "hourly"
-            assert graph._hour_data[graph._hourly_selected]["hour"] == selected_hour
+            assert str(app.query_one("#bar-readout").render()) == selected_hour
 
             # Esc returns to daily
             await pilot.press("escape")
             await pilot.pause()
-            assert graph.view_mode == "daily"
-            assert graph.drill_day is None
+            assert app.query_one("#activity-tabs").active == "view-history"
+            assert str(app.query_one("#bar-readout").render()) == daily_readout
 
     @pytest.mark.asyncio
     async def test_empty_store_graph(self, tmp_path):