feat: persister les événements de présence et activer les clés étrangères SQLite

Ajoute le modèle WorkplacePresenceEvent pour stocker les événements de
présence reçus de Home Assistant, avec clé d'idempotence unique, lien vers
une journée et, facultativement, une plage horaire. Active les contraintes
de clés étrangères sur chaque connexion SQLite et documente le schéma dans
l'onboarding. Couvre le tout par des tests de modèle et de factory.

Co-authored-by: OpenAI/GPT-5.6-Luna-Pro <vibecoder@antoineve.me>

tests/test_app_factory.py

@@ -9,3 +9,8 @@ def test_app_fixture_uses_one_in_memory_database_connection(app):
         assert str(db.engine.url) == "sqlite:///:memory:"
         assert isinstance(db.engine.pool, StaticPool)
         assert sa.inspect(db.engine).has_table("work_entries")
+
+
+def test_sqlite_foreign_keys_are_enabled(app):
+    with app.app_context():
+        assert db.session.scalar(sa.text("PRAGMA foreign_keys")) == 1

tests/test_models.py

@@ -0,0 +1,111 @@
+from datetime import date, datetime, time
+
+import pytest
+import sqlalchemy as sa
+from sqlalchemy.exc import IntegrityError
+
+from app import db
+from app.models import TimeSlot, WorkEntry, WorkplacePresenceEvent
+
+
+def make_entry() -> WorkEntry:
+    return WorkEntry(date=date(2026, 8, 13), day_type="WORK")
+
+
+def make_event(entry: WorkEntry, key: str = "ha-arrival-1") -> WorkplacePresenceEvent:
+    return WorkplacePresenceEvent(
+        idempotency_key=key,
+        event_type="arrival",
+        received_at=datetime(2026, 8, 13, 6, 23, 10),
+        occurred_at=datetime(2026, 8, 13, 8, 23, 10),
+        local_date=date(2026, 8, 13),
+        entry=entry,
+    )
+
+
+def test_presence_event_creation_and_relations(app):
+    with app.app_context():
+        entry = make_entry()
+        slot = TimeSlot(start_time=time(8), end_time=time(12), entry=entry)
+        event = make_event(entry)
+        event.time_slot = slot
+        db.session.add(entry)
+        db.session.commit()
+
+        assert event.entry is entry
+        assert event in entry.presence_events
+        assert event.time_slot is slot
+        assert event in slot.presence_events
+        assert event.processed_at is None
+
+
+def test_idempotency_key_is_unique(app):
+    with app.app_context():
+        entry = make_entry()
+        db.session.add_all([entry, make_event(entry), make_event(entry, "ha-arrival-1")])
+        with pytest.raises(IntegrityError):
+            db.session.commit()
+        db.session.rollback()
+
+
+def test_event_type_check_constraint(app):
+    with app.app_context():
+        entry = make_entry()
+        event = make_event(entry)
+        event.event_type = "unknown"
+        db.session.add_all([entry, event])
+        with pytest.raises(IntegrityError):
+            db.session.commit()
+        db.session.rollback()
+
+
+def test_time_slot_link_is_nullable_and_set_null_on_slot_delete(app):
+    with app.app_context():
+        entry = make_entry()
+        slot = TimeSlot(start_time=time(8), end_time=time(12), entry=entry)
+        event = make_event(entry)
+        event.time_slot = slot
+        db.session.add(entry)
+        db.session.commit()
+
+        db.session.delete(slot)
+        db.session.commit()
+
+        assert db.session.get(WorkplacePresenceEvent, event.id).time_slot_id is None
+
+
+def test_events_cascade_when_work_entry_is_deleted(app):
+    with app.app_context():
+        entry = make_entry()
+        db.session.add(make_event(entry))
+        db.session.commit()
+        event_id = entry.presence_events[0].id
+
+        db.session.delete(entry)
+        db.session.commit()
+
+        assert db.session.get(WorkplacePresenceEvent, event_id) is None
+
+
+def test_create_all_adds_presence_table_without_losing_existing_entries(app):
+    with app.app_context():
+        db.session.add(make_entry())
+        db.session.commit()
+        db.session.execute(sa.text("DROP TABLE workplace_presence_events"))
+        db.session.commit()
+
+        db.create_all()
+
+        assert db.session.scalar(sa.select(sa.func.count()).select_from(WorkEntry)) == 1
+        assert sa.inspect(db.engine).has_table("workplace_presence_events")
+
+
+def test_create_all_creates_all_tables_on_empty_sqlite_database(app):
+    with app.app_context():
+        db.drop_all()
+        db.create_all()
+
+        inspector = sa.inspect(db.engine)
+        assert inspector.has_table("work_entries")
+        assert inspector.has_table("time_slots")
+        assert inspector.has_table("workplace_presence_events")