MAINT-14: accurate no-level wording per phase; name the limit that ended the charge

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

goodwe_controller/DECISIONS/MAINT-14-no-soc-in-maintenance.md

@@ -60,7 +60,8 @@ allows discharge.
 
 - **HOLD with no SoC** still holds 0 W and, as before, does not end while the
   reading is missing: its time check sits behind the same early return. A HOLD
-  needs no level to end, so this is a candidate follow-up, not part of this fix.
+  needs no level to end, so this is a candidate follow-up, not part of this fix. It is card MAINT-15. The "no battery level" line in
+  HOLD says only that the hold waits for the level.
 - It does not tell the operator why the reading is missing (sensor, register,
   link). It does not reuse the stale-input gate; it is the cycle's own rule.
 - The charge itself is still driven by the control loop, which has its own

goodwe_controller/app/maintenance.py

@@ -563,8 +563,11 @@ class Maintenance:
         if (not self._nosoc_said and (now - self._nosoc_since).total_seconds()
                 >= NOSOC_NOTE_MIN * 60):
             self._nosoc_said = True
+            tail = ("The hold waits for the level to come back."
+                    if phase == HOLD else
+                    f"The time limit of the {phase} still applies.")
             msg = (f"maintenance: no battery level for {NOSOC_NOTE_MIN} min. "
-                   f"The time limit of the {phase} still applies.")
+                   f"{tail}")
             _LOG.warning("%s", msg)
             events.append(msg)
         if phase == HOLD:
@@ -587,9 +590,12 @@ class Maintenance:
                             f"charge counts as done -> holding "
                             f"{self.cfg.hold_min} min to balance")
                 return MaintResult(HOLD, True, 0.0, False, events)
+            if elapsed > CHARGE_WALL_TIMEOUT_MIN:
+                lim = f"the {CHARGE_WALL_TIMEOUT_MIN // 1440}-day limit"
+            else:
+                lim = f"{trk['open_min'] / 60:.0f} h of charging time"
             return self._fail(now, "charge",
-                              f"charge stuck, battery level unknown, after "
-                              f"{trk['open_min'] / 60:.0f} h of charging time")
+                              f"charge stuck, battery level unknown, after {lim}")
         return MaintResult(CHARGE, False, None, True, events)
 
     def abort(self, now: datetime, why: str) -> list:

goodwe_controller/test_maint14.py

@@ -240,6 +240,29 @@ m = in_charge()
 res, _, out, ev = run(m, T0, 5, None)
 check("a 5 min gap says nothing", ev == [])
 
+print("5b. the words per phase")
+m = in_charge()
+m.tick(T0 + MIN, 100.0)
+_, _, _, ev = run(m, T0 + 2 * MIN, 30, None)
+note = [e for e in ev if "no battery level for" in e]
+check("HOLD: the line exists and claims no time limit",
+      len(note) == 1 and "time limit" not in note[0] and "waits" in note[0])
+m = in_charge()
+_, _, _, ev = run(m, T0, 30, None)
+check("charge keeps its wording", any("time limit of the charge" in e for e in ev))
+m = in_charge()
+run(m, T0, 10, 70.0)
+_, _, out, ev = run(m, T0 + 10 * MIN, CHARGE_WALL_TIMEOUT_MIN + 30, None,
+                    gate=False, step=5)
+fail = [e for e in ev if "ABORT" in e]
+check("7-day backstop: the reason names the 7-day limit, not '0 h'",
+      len(fail) == 1 and "7-day limit" in fail[0] and "0 h" not in fail[0])
+m = in_charge()
+_, _, out, ev = run(m, T0, CHARGE_TIMEOUT_MIN + 10, None)
+fail = [e for e in ev if "ABORT" in e]
+check("charge-time limit: the reason gives the hours of charging time",
+      len(fail) == 1 and "36 h of charging time" in fail[0])
+
 print("6. restart while the SoC is missing")
 with tempfile.TemporaryDirectory() as d:
     path = os.path.join(d, "state.json")