import 'package:flutter_test/flutter_test.dart';

import 'package:dmc_app/app_mode/app_mode_cubit.dart';
import 'package:dmc_app/domain/waypoint/flat_waypoint_list.dart';
import 'package:dmc_app/services/mission_sync_service.dart';
import 'package:dmc_app/transport/mock/mock_flight_controller_link.dart';

/// FlightControllerLink-Doppelgaenger, der einen erfolgreichen Upload aber
/// eine fehlschlagende Verifikation simuliert - MockFlightControllerLink
/// selbst kann das nicht (dessen verifyMission() vergleicht immer korrekt
/// gegen die zuletzt hochgeladene Wegpunktzahl).
class _UnverifiableLink extends MockFlightControllerLink {
  @override
  Future<bool> verifyMission(FlatWaypointList mission) async => false;
}

void main() {
  const mission = FlatWaypointList([
    Waypoint(lat: 52.5, lon: 13.4, altitudeM: 60, speedMs: 15, catchRadiusM: 60),
  ]);

  test('erfolgreicher Sync setzt missionUploaded und missionVerified', () async {
    final appMode = AppModeCubit();
    addTearDown(appMode.close);
    final service = MissionSyncService(MockFlightControllerLink(), appMode);

    await service.syncAndUpload(mission);

    expect(appMode.state.missionUploaded, isTrue);
    expect(appMode.state.missionVerified, isTrue);
  });

  test('Upload im armed-Zustand wirft und setzt keinen der beiden Flags', () async {
    final appMode = AppModeCubit();
    addTearDown(appMode.close);
    final link = MockFlightControllerLink();
    await link.arm();
    final service = MissionSyncService(link, appMode);

    await expectLater(() => service.syncAndUpload(mission), throwsStateError);

    expect(appMode.state.missionUploaded, isFalse);
    expect(appMode.state.missionVerified, isFalse);
  });

  test('fehlschlagende Verifikation wirft MissionVerificationException, '
      'missionUploaded bleibt trotzdem gesetzt, missionVerified nicht', () async {
    final appMode = AppModeCubit();
    addTearDown(appMode.close);
    final service = MissionSyncService(_UnverifiableLink(), appMode);

    await expectLater(
      () => service.syncAndUpload(mission),
      throwsA(isA<MissionVerificationException>()),
    );

    expect(appMode.state.missionUploaded, isTrue);
    expect(appMode.state.missionVerified, isFalse);
  });
}