393 files

custom_components/ha_washdata/signal_processing.py

@@ -441,3 +441,37 @@ def resample_adaptive(
     return segments, target_dt
 
 
+def quiet_run_before(
+    points: list[tuple[float, float]], last_active: float, stop_threshold_w: float
+) -> float:
+    """Length of the sub-threshold run immediately preceding ``last_active``.
+
+    Recognises a terminal pump-out from the trace alone: if the final
+    above-threshold sample is preceded by a long quiet stretch, that sample is
+    the event the drying led up to, not the last moment of washing. Returns 0.0
+    when the sample before it is still active.
+
+    Shared on purpose. The banked-tail repair and ``CycleDetector._keep_tail_cap``
+    have to answer this question the same way, or a cycle gets one allowance live
+    and a different one when the repair re-judges it (register item 347).
+    """
+    # The terminal event is a RUN of above-threshold samples, not one sample, so
+    # walk back to where that run starts before measuring the quiet in front of
+    # it. Measuring from `last_active` itself finds only the run's own width.
+    idx = [i for i, (o, _p) in enumerate(points) if o <= last_active]
+    if not idx:
+        return 0.0
+    i = idx[-1]
+    while i > 0 and points[i - 1][1] > stop_threshold_w:
+        i -= 1
+    run_start = points[i][0]
+    # Now the last above-threshold sample before that run, if any.
+    prev_active: float | None = None
+    for offset, power in points:
+        if offset >= run_start:
+            break
+        if power > stop_threshold_w:
+            prev_active = offset
+    if prev_active is None:
+        return 0.0
+    return max(0.0, run_start - prev_active)