refactor: improve panel sync performance

tests/test_admin_sync_performance.py

@@ -1,8 +1,10 @@
 from datetime import datetime, timedelta, timezone
+from types import SimpleNamespace
 
 from bot.handlers.admin.sync_admin import (
     _coerce_panel_telegram_id,
     _description_matches,
+    _should_update_lifetime_used_traffic,
     _subscription_update_delta,
 )
 from db.models import Subscription
@@ -69,3 +71,54 @@ def test_subscription_update_delta_returns_only_changed_fields():
         "is_active": False,
         "status_from_panel": "EXPIRED",
     }
+
+
+def test_lifetime_traffic_update_waits_for_time_window_for_small_delta():
+    now = datetime(2026, 5, 20, 12, 0, tzinfo=timezone.utc)
+    settings = SimpleNamespace(
+        PANEL_SYNC_LIFETIME_TRAFFIC_MIN_INTERVAL_SECONDS=3600,
+        PANEL_SYNC_LIFETIME_TRAFFIC_MIN_DELTA_BYTES=100 * 1024 * 1024,
+    )
+    user = SimpleNamespace(
+        lifetime_used_traffic_bytes=10 * 1024 * 1024,
+        lifetime_used_traffic_synced_at=now - timedelta(minutes=15),
+    )
+
+    assert not _should_update_lifetime_used_traffic(
+        user,
+        11 * 1024 * 1024,
+        now=now,
+        settings=settings,
+    )
+    assert _should_update_lifetime_used_traffic(
+        user,
+        11 * 1024 * 1024,
+        now=now + timedelta(hours=1),
+        settings=settings,
+    )
+
+
+def test_lifetime_traffic_update_allows_large_delta_and_skips_duplicate_panel_identity():
+    now = datetime(2026, 5, 20, 12, 0, tzinfo=timezone.utc)
+    settings = SimpleNamespace(
+        PANEL_SYNC_LIFETIME_TRAFFIC_MIN_INTERVAL_SECONDS=3600,
+        PANEL_SYNC_LIFETIME_TRAFFIC_MIN_DELTA_BYTES=100 * 1024 * 1024,
+    )
+    user = SimpleNamespace(
+        lifetime_used_traffic_bytes=10 * 1024 * 1024,
+        lifetime_used_traffic_synced_at=now,
+    )
+
+    assert _should_update_lifetime_used_traffic(
+        user,
+        200 * 1024 * 1024,
+        now=now,
+        settings=settings,
+    )
+    assert not _should_update_lifetime_used_traffic(
+        user,
+        0,
+        now=now + timedelta(hours=2),
+        settings=settings,
+        is_duplicate_panel_identity=True,
+    )

tests/test_panel_api_service_logging.py

@@ -106,6 +106,25 @@ class PanelApiServiceLoggingTests(unittest.IsolatedAsyncioTestCase):
 
         self.assertEqual(get_calls, 2)
 
+    async def test_get_all_panel_users_falls_back_to_100_when_large_page_fails(self):
+        service = self._make_service()
+        requested_sizes = []
+
+        async def fake_request(method, endpoint, **kwargs):
+            params = kwargs.get("params") or {}
+            size = params.get("size")
+            requested_sizes.append(size)
+            if size == 1000:
+                return {"error": True, "status_code": 400}
+            return {"response": {"users": [{"uuid": "user-uuid"}]}}
+
+        service._request = AsyncMock(side_effect=fake_request)
+
+        users = await service.get_all_panel_users()
+
+        self.assertEqual(users, [{"uuid": "user-uuid"}])
+        self.assertEqual(requested_sizes, [1000, 100])
+
 
 if __name__ == "__main__":
     unittest.main()

tests/test_support_migration.py

@@ -1,5 +1,5 @@
 from db.migrator import MIGRATIONS
-from db.models import SupportTicket, SupportTicketMessage
+from db.models import SupportTicket, SupportTicketMessage, User
 
 
 def test_support_migration_is_registered_after_existing_revisions():
@@ -11,6 +11,10 @@ def test_support_migration_is_registered_after_existing_revisions():
     assert ids.index("0025_add_support_notification_timestamps") > ids.index(
         "0024_add_support_tickets"
     )
+    assert "0026_add_lifetime_traffic_synced_at" in ids
+    assert ids.index("0026_add_lifetime_traffic_synced_at") > ids.index(
+        "0025_add_support_notification_timestamps"
+    )
 
 
 def test_support_models_expose_expected_tables():
@@ -21,3 +25,7 @@ def test_support_models_expose_expected_tables():
     assert "ix_support_tickets_status_last_msg" in {
         index.name for index in SupportTicket.__table__.indexes
     }
+
+
+def test_user_model_tracks_lifetime_traffic_sync_timestamp():
+    assert "lifetime_used_traffic_synced_at" in User.__table__.columns