fix: 保留未填报设备段归属工时

app/services/report_allocations.py

@@ -184,6 +184,25 @@ def _item_bucket_totals(minutes_by_item: dict[int, dict[date, dict[str, float]]]
     return totals
 
 
+def _allocate_unassigned_minutes_to_existing_items(
+    minutes_by_item: dict[int, dict[date, dict[str, float]]],
+    unassigned_minutes: dict[date, dict[str, float]],
+) -> None:
+    unassigned_total = _minutes_total(unassigned_minutes)
+    if unassigned_total <= 0 or not minutes_by_item:
+        return
+
+    raw_item_totals = {
+        item_id: _minutes_total(rows_by_date)
+        for item_id, rows_by_date in minutes_by_item.items()
+    }
+    raw_total = sum(raw_item_totals.values())
+    item_count = len(minutes_by_item)
+    for item_id, rows_by_date in minutes_by_item.items():
+        weight = raw_item_totals[item_id] / raw_total if raw_total > 0 else 1 / item_count
+        _add_date_bucket_minutes(rows_by_date, unassigned_minutes, scale=weight)
+
+
 def _scale_item_minutes_to_bucket_targets(
     minutes_by_item: dict[int, dict[date, dict[str, float]]],
     target_buckets: dict[str, float],
@@ -352,6 +371,7 @@ def _device_minutes_by_item(report, items: list, schedule: WorkScheduleConfig |
                     row[key] += minutes.get(key, 0.0) * (remaining / raw_unassigned) / len(unmatched_items)
         return minutes_by_item
 
+    _allocate_unassigned_minutes_to_existing_items(minutes_by_item, unassigned_minutes)
     _scale_item_minutes_to_bucket_targets(minutes_by_item, _bucket_totals(target_minutes))
     return minutes_by_item
 
@@ -468,6 +488,7 @@ def refresh_report_allocations(
     *,
     commit: bool = False,
 ) -> list[ProductionReportAllocation]:
+    """Rebuild allocation rows with metrics semantics, updating item allocation-derived fields."""
     db.execute(delete(ProductionReportAllocation).where(ProductionReportAllocation.report_id == getattr(report, "id")))
     rows = [
         ProductionReportAllocation(

tests/test_report_allocations.py

@@ -214,6 +214,37 @@ def test_device_matched_and_unmatched_items_match_metrics_remaining_minutes():
     }
 
 
+def test_unassigned_device_segment_is_allocated_when_all_items_already_matched():
+    start_at = datetime(2026, 7, 25, 0, 0)
+    switch_at = datetime(2026, 7, 25, 8, 0)
+    end_at = datetime(2026, 7, 25, 10, 0)
+    devices = [
+        _device(start_at, device_no="23#", sort_order=0),
+        _device(switch_at, device_no="99#", sort_order=1),
+    ]
+    item = _item(id=1, good_qty=600, device_no="23#", started_at=start_at)
+    report = _report(start_at, end_at, item, devices=devices)
+
+    metrics = calculate_report_metrics(start_at, end_at, [item], devices=devices)
+    rows = build_report_allocation_drafts(report)
+
+    assert metrics["effective_minutes"] == 600
+    assert metrics["shift_day_minutes"] == 120
+    assert metrics["shift_overtime_minutes"] == 120
+    assert metrics["shift_night_minutes"] == 360
+    assert round(sum(row.effective_minutes for row in rows), 2) == metrics["effective_minutes"]
+    assert {
+        "day": round(sum(row.day_minutes for row in rows), 2),
+        "overtime": round(sum(row.overtime_minutes for row in rows), 2),
+        "night": round(sum(row.night_minutes for row in rows), 2),
+    } == {
+        "day": metrics["shift_day_minutes"],
+        "overtime": metrics["shift_overtime_minutes"],
+        "night": metrics["shift_night_minutes"],
+    }
+    assert all(row.effective_minutes == round(row.day_minutes + row.overtime_minutes + row.night_minutes, 2) for row in rows)
+
+
 def test_night_allocation_uses_meal_deducted_minutes_with_previous_date_rules():
     schedule = WorkScheduleConfig(
         day_start="08:00",