import 'package:flutter_test/flutter_test.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:travel_mate/models/album_photo.dart';
import 'package:travel_mate/services/album_service.dart';

void main() {
  const tripId = 'trip-album-1';
  late AlbumService service;

  setUp(() {
    SharedPreferences.setMockInitialValues({});
    service = AlbumService();
  });

  test('adds and loads photos', () async {
    final photo = AlbumPhoto.newPhoto(
      id: 'p1',
      url: 'https://example.com/img.jpg',
      caption: 'Coucher de soleil',
      uploadedBy: 'Alice',
    );
    await service.addPhoto(tripId, photo);
    final loaded = await service.loadPhotos(tripId);
    expect(loaded.single.url, contains('example.com'));
  });

  test('deletes photo and clears corrupted payload', () async {
    final p = AlbumPhoto.newPhoto(id: 'p1', url: 'u', caption: null);
    await service.addPhoto(tripId, p);
    var updated = await service.deletePhoto(tripId, 'p1');
    expect(updated, isEmpty);

    final prefs = await SharedPreferences.getInstance();
    await prefs.setString('album_$tripId', 'oops');
    updated = await service.loadPhotos(tripId);
    expect(updated, isEmpty);
    expect(prefs.getString('album_$tripId'), isNull);
  });
}