OPT-38 round 2: a kept tomorrow reading is flagged kept only from 20:00

Before the bell ends it replaced today's Home line and the event log with
the kept-for-tonight wording. stand_in() docstring covers the tomorrow case.

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

goodwe_controller/app/solarfc.py

@@ -332,8 +332,9 @@ class Hold:
 
         The kept reading must be for `day0`, and either (a) at most `FRESH_S`
         old, or (b) used at night: from the end of the bell to local midnight,
-        at most `KEPT_MAX_AGE_S` old. `kept` is true when (b) was needed,
+        at most `KEPT_MAX_AGE_S` old; a "tomorrow" reading at any hour
-        or `as_today` (OPT-34: a tomorrow figure standing in for today, after
+        (OPT-38; `read_sum()` flags it kept only from the end of the bell).
+        `kept` is true when (b) was needed, or `as_today` (OPT-34: a tomorrow figure standing in for today, after
         midnight and until the bell starts, `KEPT_MORNING_MAX_AGE_S`)."""
         rec = self._r.get((kind, entity, day0))
         if rec is None:
@@ -558,6 +559,9 @@ def read_sum(today, tomorrow, now: datetime, hold: Hold | None = None):
     if why0 is not None:
         return None, why0, gaps
     tday = _sum(tdays) if tomorrow and len(tdays) == len(tomorrow) else None
-    kept = kept or (tday is not None and tkept)
+    # OPT-38: before the bell ends a kept tomorrow reading is no "kept for
+    # tonight": it must not replace today's line or the log.
+    kept = kept or (tday is not None and tkept
+                    and _local_hour(now) >= BELL_TO_H)
     # The oldest member's report is when the sum was last fully known.
     return Forecast(_sum(days), tday, min(ats), kept), None, gaps

goodwe_controller/test_opt27.py

@@ -146,7 +146,7 @@ for label, tm in (("stale", st(12.0, at(4, 9, 5))), ("unavailable", GONE)):
     check(f"14:00, today fresh, tomorrow {label} since 09:05 (over 3 h): "
           "the 09:05 figure covers it, kept (OPT-38: at any hour)",
           fd is not None and fd.tomorrow is not None
-          and fd.tomorrow.kwh == 12.0 and fd.kept)
+          and fd.tomorrow.kwh == 12.0 and not fd.kept)
     fn = rs(st(0.1, at(4, 20, 55)), tm, at(4, 21, 0), h9)[0]
     check(f"21:00, tomorrow {label}: the 09:05 figure covers it, kept",
           fn is not None and fn.tomorrow is not None

goodwe_controller/test_opt34.py

@@ -186,9 +186,9 @@ check("a fresh figure replaces the kept one at once (04:00: 5.0 today, "
       and fy.today.kwh == 5.0 and fy.tomorrow.kwh == 9.0)
 fy2 = rs(st(5.0, at(4, 7, 55)), GONE, at(4, 8, 0), hd)[0]
 check("... and at 08:00, today fresh and tomorrow's sensor down for over 3 h: "
-      "tomorrow is the 03:50 figure for the 5th (9.0, kept: OPT-38), never "
+      "tomorrow is the 03:50 figure for the 5th (9.0, not flagged kept before 20:00: OPT-38), never "
       "the 3rd's 12.0", fy2 is not None and fy2.today.kwh == 5.0
-      and fy2.tomorrow is not None and fy2.tomorrow.kwh == 9.0 and fy2.kept)
+      and fy2.tomorrow is not None and fy2.tomorrow.kwh == 9.0 and not fy2.kept)
 
 # Restart: the saved hold keeps the figure.
 for label, now in (("01:00", at(4, 1, 0)), ("04:00", at(4, 4, 0))):

goodwe_controller/test_opt38.py

@@ -16,7 +16,7 @@ from datetime import datetime, timedelta, timezone
 HERE = os.path.dirname(os.path.abspath(__file__))
 sys.path.insert(0, HERE)
 
-from app import solarfc                                        # noqa: E402
+from app import homeview, solarfc                                        # noqa: E402
 
 fails = []
 
@@ -55,15 +55,16 @@ run(h, [(4.0, at(6, 14, 0)), (5.0, at(6, 14, 54)), (6.0, at(6, 14, 0))],
     at(6, 14, 55))
 fresh = lambda w: [(4.0, w), (5.0, at(6, 14, 54)), (6.0, w)]  # noqa: E731
 f, why, gaps = run(h, fresh(at(6, 18, 20)), at(6, 18, 30))
-check("18:30, one member last reported 14:54: tomorrow sum is there, kept",
+check("18:30, one member last reported 14:54: tomorrow sum is there (not "
+      "flagged kept before 20:00)",
       f is not None and f.tomorrow is not None and f.tomorrow.kwh == 15.0
-      and f.kept and gaps == ())
+      and not f.kept and gaps == ())
 f, _w, _g = run(h, fresh(at(6, 17, 40)), at(6, 17, 50))
 check("17:50 (just under 3 h): fresh, not kept",
       f is not None and f.tomorrow.kwh == 15.0 and not f.kept)
 f, _w, _g = run(h, fresh(at(6, 17, 55)), at(6, 18, 0))
-check("18:00 (stale since 17:54): kept, tomorrow there",
+check("18:00 (stale since 17:54): tomorrow there",
-      f is not None and f.tomorrow is not None and f.kept)
+      f is not None and f.tomorrow is not None and not f.kept)
 f, _w, _g = run(h, fresh(at(6, 19, 50)), at(6, 19, 55))
 check("19:55 (before the bell ends): tomorrow there", f.tomorrow is not None)
 
@@ -80,7 +81,7 @@ check("member 12 h 10 min old: no tomorrow sum (OPT-17 rule), today stays",
 f, _w, _g = run(h2, [(4.0, w), (5.0, at(6, 5, 0)), (6.0, w)],
                 at(6, 16, 50))
 check("... and 11 h 50 min old is still kept",
-      f is not None and f.tomorrow is not None and f.kept)
+      f is not None and f.tomorrow is not None and not f.kept)
 
 # Not a partial sum: a member never read has nothing to stand in.
 f, _w, gaps = run(solarfc.Hold(), [(4.0, at(6, 18, 0)),
@@ -117,6 +118,38 @@ for label, now in (("00:30", at(7, 0, 30)), ("10:00", at(7, 10, 0)),
     check(f"{label} on the 7th: the 6th's tomorrow figure is not the "
           "7th's tomorrow", f is not None and f.tomorrow is None)
 
+# Before 20:00 a kept tomorrow reading is not "kept for tonight": today's
+# line stays the normal one (EN and NL) and the event log (main.py, from
+# `fc.kept`) has no "kept".
+h5 = solarfc.Hold()
+solarfc.read_sum([("t", st(3.0, at(6, 9, 0)))], [("m", st(12.0, at(6, 9, 5)))],
+                 at(6, 9, 6), h5)
+for hh in (14, 18, 19):
+    f, _w, _g = solarfc.read_sum([("t", st(2.5, at(6, hh - 1, 55)))],
+                                 [("m", st(12.0, at(6, 9, 5)))],
+                                 at(6, hh, 0), h5)
+    check(f"{hh}:00, today fresh, tomorrow kept from 09:05: tomorrow there, "
+          "not flagged kept", f is not None and f.tomorrow is not None
+          and f.tomorrow.kwh == 12.0 and f.kept is False)
+f, _w, _g = solarfc.read_sum([("t", st(2.5, at(6, 13, 55)))],
+                             [("m", st(12.0, at(6, 9, 5)))], at(6, 14, 0), h5)
+for lang in ("en", "nl"):
+    with homeview.in_lang(lang):
+        line = homeview.line_solar(f.today.kwh, f.today.kwh * 0.7,
+                                   homeview.hhmm(f.at), kept=f.kept)
+        kept_line = homeview.line_solar(1, 1, homeview.hhmm(f.at), kept=True)
+    print(f"    {lang}: {line!r}")
+    if lang == "en":
+        check("... EN says 'Solar still to come today'",
+              line.startswith("Solar still to come today"))
+    check(f"14:00 Home line ({lang}) is the normal line, not the kept one",
+          line != kept_line and "2,5" in line.replace(".", ",")
+          and "13:55" in line)
+f, _w, _g = solarfc.read_sum([("t", st(0.2, at(6, 20, 55)))],
+                             [("m", st(12.0, at(6, 9, 5)))], at(6, 21, 0), h5)
+check("21:00 as before: tomorrow kept from 09:05 is flagged kept",
+      f is not None and f.kept and f.tomorrow.kwh == 12.0)
+
 print()
 if fails:
     print(f"{len(fails)} FAILED:")