cileni k vybiti pred ranem kdy nabiju z fve

backend/tests/test_planning_dispatch_milp.py

@@ -19,7 +19,9 @@ from services.planning_engine import (
     _in_night_battery_export_window,
     _neg_sell_day_phases,
     _neg_sell_phases_enabled,
+    _neg_evening_reserve_soc_anchors,
     _pre_neg_pv_export_bundle,
+    _prague_calendar_date,
     _pre_neg_buy_soc_ceiling_wh,
     _pre_neg_peak_sell_idx,
     _pre_neg_pv_export_forecast_cushion_ok,
@@ -4093,6 +4095,52 @@ class NegSellPrepWindowV36Tests(unittest.TestCase):
                 "morning before 2nd neg day should allow pre-neg export",
             )
 
+    def test_evening_reserve_anchor_before_neg_day(self) -> None:
+        base = datetime(2026, 6, 10, 10, 0, tzinfo=ZoneInfo("Europe/Prague")).astimezone(
+            timezone.utc
+        )
+        slots: list[PlanningSlot] = []
+        for i in range(120):
+            local = (base + timedelta(minutes=15 * i)).astimezone(
+                ZoneInfo("Europe/Prague")
+            )
+            h = local.hour + local.minute / 60.0
+            if local.date().day == 10:
+                sell = -0.2 if h >= 14 else 2.5
+            elif local.date().day == 11:
+                sell = -0.2 if 9 <= h < 15 else 2.8
+            else:
+                sell = 2.5
+            slots.append(
+                PlanningSlot(
+                    interval_start=base + timedelta(minutes=15 * i),
+                    buy_price=2.0,
+                    sell_price=sell,
+                    pv_a_forecast_w=3000,
+                    pv_b_forecast_w=3000,
+                    load_baseline_w=1500,
+                    ev1_connected=False,
+                    ev2_connected=False,
+                    allow_charge=True,
+                    allow_discharge_export=True,
+                )
+            )
+        bat = _battery(uc_wh=64_000.0, max_pct=95.0, arb_pct=20.0)
+        bat.planner_neg_sell_prep_soc_percent = 80.0
+        bat.planner_neg_sell_full_soc_tail_slots = 4
+        _ph, _tg, _w, meta = _neg_sell_day_phases(slots, bat)
+        anchors = _neg_evening_reserve_soc_anchors(slots, meta, bat)
+        self.assertGreaterEqual(len(anchors), 1)
+        t_a, tgt = anchors[0]
+        self.assertAlmostEqual(tgt, bat.reserve_soc_wh, delta=100.0)
+        self.assertEqual(_prague_calendar_date(slots[t_a]).day, 10)
+        # Kotva pro den 11: večer 10.6. (i když odpoledne 10.6. už bylo sell<0).
+        if len(meta["days"]) >= 2:
+            day11_first = int(meta["days"][1]["first_neg_idx"])
+            prev = _prague_calendar_date(slots[day11_first]) - timedelta(days=1)
+            a11 = [(t, w) for t, w in anchors if _prague_calendar_date(slots[t]) == prev]
+            self.assertEqual(len(a11), 1)
+
 
 if __name__ == "__main__":
     unittest.main()