Clarify incomplete history readouts (#103)

src/fenris/tui.py

@@ -72,6 +72,13 @@ _ACTION_LEGEND = (
     "p Pause · " + _RESUME_HINT + "\n"
     "c Collect now · t Today · [ ] Day · g Date · m Motion · d Disclosures · ? Help"
 )
+_LOCAL_ACTIVITY_STATE_LABELS = {
+    "so_far": "totals so far",
+    "incomplete": "incomplete",
+    "complete": "complete",
+    "zero": "measured zero",
+    "unavailable": "local activity unavailable",
+}
 
 def _format_remaining(seconds: float) -> str:
     """Format remaining lifespan as human-readable string."""
@@ -490,7 +497,9 @@ class HistoryGraph(Widget):
             parts = [
                 "[bold]%s[/bold] · %s · %s"
                 % (day.get("day", ""), day.get("timezone_label", ""),
-                   day.get("activity_state", "incomplete")),
+                   _LOCAL_ACTIVITY_STATE_LABELS.get(
+                       day.get("activity_state"), "local activity unavailable",
+                   )),
                 "W %s · R %s" % (written_text, read_text),
             ]
             shared_written = day.get("shared_bytes_written", 0)
@@ -601,7 +610,7 @@ class HistoryGraph(Widget):
             if h.get("timezone_label"):
                 state = "future" if h.get("is_future") else (
                     "gap" if h.get("is_gap") else
-                    "partial" if h.get("is_partial") else "measured"
+                    "incomplete" if h.get("is_partial") else "measured"
                 )
                 note = ""
                 if self._drill_unallocated_bytes or self._drill_unallocated_read:
@@ -1231,7 +1240,11 @@ def _query_local_hourly_graph_data(
             "unknown_seconds": unknown_seconds,
             "is_zero": written == 0 and read == 0 and not is_gap,
             "is_gap": is_gap,
-            "is_partial": hour_start <= current < hour_end,
+            "is_partial": (
+                hour_start <= current < hour_end
+                or coverage < 1.0
+                or unknown_seconds > 0
+            ),
             "is_future": is_future,
         })
         hour_start = hour_end
@@ -2193,14 +2206,9 @@ class FenrisTuiApp(App):
 
         tz_display = "%s %s" % (local["tz_name"], local["tz_offset"])
         state = local["activity_state"]
-        state_labels = {
-            "so_far": "totals so far",
-            "incomplete": "incomplete",
-            "complete": "complete",
-            "zero": "measured zero",
-            "unavailable": "local activity unavailable",
-        }
-        label = state_labels.get(state, "local activity unavailable")
+        label = _LOCAL_ACTIVITY_STATE_LABELS.get(
+            state, "local activity unavailable",
+        )
         bw = local["bytes_written"]
         br = local["bytes_read"]
         if bw is None or br is None:

tests/test_issue_92.py

@@ -795,6 +795,11 @@ class TestHistoricalSelectionIdentity:
                 (hour.isoformat(), (index + 1) * 1_000_000_000,
                  (index + 1) * 2_000_000_000),
             )
+        conn.execute(
+            "UPDATE hour_observations SET coverage = 0.5, unknown_seconds = 1800 "
+            "WHERE hour = ?",
+            ("2026-11-01T04:00:00+00:00",),
+        )
         conn.commit()
         conn.close()
         app, patcher = _make_app(tmp_path, clock=clock)
@@ -823,5 +828,10 @@ class TestHistoricalSelectionIdentity:
                 assert "01:00 -0400" in first_occurrence
                 assert "America/New_York -0400" in first_occurrence
                 assert "05:00 UTC" in first_occurrence
+
+                await pilot.press("left")
+                incomplete_hour = str(app.query_one("#bar-readout").render())
+                assert "00:00 -0400" in incomplete_hour
+                assert "50% coverage · incomplete" in incomplete_hour
         finally:
             patcher.stop()

tests/test_tui.py

@@ -1044,7 +1044,7 @@ class TestBarGraphTUI:
 
             # Newest day is selected initially.
             readout = str(app.query_one("#bar-readout").render())
-            assert "so_far" in readout
+            assert "totals so far" in readout
             assert "W 0.105 GB known" in readout
 
             # Moving left updates the selected-day readout.