fix: HA sync uses per-printer autocommit connections to prevent database locked

app.py

@@ -2040,46 +2040,49 @@ def _ha_sync_once():
         states = _ha_fetch_all_states(ha_url, ha_token)
         if not states:
             return
-        # Ouvrir la connexion d'écriture APRÈS l'appel HTTP (qui peut être long)
-        conn = sqlite3.connect(DATABASE, timeout=30)
-        conn.row_factory = sqlite3.Row
-        conn.execute('PRAGMA journal_mode=WAL')
-        printers = conn.execute(
+        # Lire les imprimantes avec une connexion courte (lecture seule)
+        _rc = sqlite3.connect(DATABASE, timeout=15)
+        _rc.row_factory = sqlite3.Row
+        printers = _rc.execute(
             "SELECT id, name, ha_entity_prefix FROM printers "
             "WHERE ha_entity_prefix IS NOT NULL AND ha_entity_prefix != ''"
         ).fetchall()
+        _rc.close()
+
         now_iso = datetime.now(timezone.utc).replace(tzinfo=None).isoformat()
         window  = (datetime.now(timezone.utc).replace(tzinfo=None) + timedelta(minutes=30)).isoformat()
         for p in printers:
             prefix = p['ha_entity_prefix']
             ha_status = states.get(f'sensor.{prefix}_etat_de_l_impression', 'unknown')
             ha_error  = states.get(f'binary_sensor.{prefix}_erreur_d_impression', 'off')
-            slot = conn.execute(
-                "SELECT id, status FROM print_slots "
-                "WHERE printer_id=? AND status IN ('planned','running') "
-                "AND planned_start <= ? AND planned_end >= ? "
-                "ORDER BY planned_start DESC LIMIT 1",
-                (p['id'], window, now_iso)
-            ).fetchone()
-            if not slot:
-                continue
-            new_status = None
-            if ha_error == 'on':
-                new_status = 'failed'
-            elif ha_status == 'finish':
-                new_status = 'done'
-            elif ha_status == 'running' and slot['status'] == 'planned':
-                new_status = 'running'
-            if new_status:
-                conn.execute('UPDATE print_slots SET status=? WHERE id=?',
-                             (new_status, slot['id']))
-            if ha_ignored > 0:
-                conn.execute('UPDATE print_slots SET pieces_ignored=? WHERE id=?',
-                             (ha_ignored, slot['id']))
-        try:
-            conn.commit()
-        finally:
-            conn.close()
+            # Connexion courte par imprimante : on lit, on écrit, on commit, on ferme
+            wc = sqlite3.connect(DATABASE, timeout=15, isolation_level=None)
+            wc.row_factory = sqlite3.Row
+            try:
+                slot = wc.execute(
+                    "SELECT id, status FROM print_slots "
+                    "WHERE printer_id=? AND status IN ('planned','running') "
+                    "AND planned_start <= ? AND planned_end >= ? "
+                    "ORDER BY planned_start DESC LIMIT 1",
+                    (p['id'], window, now_iso)
+                ).fetchone()
+                if not slot:
+                    continue
+                new_status = None
+                if ha_error == 'on':
+                    new_status = 'failed'
+                elif ha_status == 'finish':
+                    new_status = 'done'
+                elif ha_status == 'running' and slot['status'] == 'planned':
+                    new_status = 'running'
+                if new_status:
+                    wc.execute('UPDATE print_slots SET status=? WHERE id=?',
+                               (new_status, slot['id']))
+                if ha_ignored > 0:
+                    wc.execute('UPDATE print_slots SET pieces_ignored=? WHERE id=?',
+                               (ha_ignored, slot['id']))
+            finally:
+                wc.close()
     except Exception as e:
         print(f'[HA sync] {e}')