import 'package:flutter_test/flutter_test.dart';
import 'package:social_app/core/api/mock_api_client.dart';
import 'package:social_app/features/calendar/data/calendar_api.dart';
import 'package:social_app/features/calendar/data/models/schedule_item_model.dart';

void main() {
  group('CalendarApi', () {
    test('listByRange parses metadata and attachments', () async {
      final client = MockApiClient();
      client.registerPatternHandler(
        RegExp(r'^/api/v1/schedule-items\?.*$'),
        'GET',
        (_) => [
          {
            'id': 'evt_1',
            'title': '晨会',
            'description': '同步',
            'start_at': '2026-03-11T01:00:00Z',
            'end_at': '2026-03-11T02:00:00Z',
            'timezone': 'Asia/Shanghai',
            'metadata': {
              'color': '#4F46E5',
              'location': '会议室A',
              'notes': '带电脑',
              'reminder_minutes': 15,
              'attachments': [
                {
                  'name': '议程文档',
                  'visible_to': ['u1'],
                  'url': 'https://example.com/a',
                  'note': '会前阅读',
                  'content': null,
                  'type': 'document',
                },
              ],
              'version': 1,
              'new_field': 'future',
            },
            'status': 'active',
            'source_type': 'manual',
            'created_at': '2026-03-10T01:00:00Z',
            'updated_at': '2026-03-10T01:30:00Z',
          },
        ],
      );

      final api = CalendarApi(client);
      final result = await api.listByRange(
        startAt: DateTime.utc(2026, 3, 1),
        endAt: DateTime.utc(2026, 3, 31, 23, 59, 59),
      );

      expect(result, hasLength(1));
      expect(result.first.metadata?.attachments, hasLength(1));
      expect(result.first.metadata?.raw['new_field'], 'future');
      expect(result.first.metadata?.reminderMinutes, 15);
      expect(result.first.startAt.isUtc, isFalse);
    });

    test('create serializes full metadata', () async {
      final client = MockApiClient();
      client.registerHandler('/api/v1/schedule-items', 'POST', (request) {
        final body = request.data as Map<String, dynamic>;
        expect(body['metadata']['version'], 1);
        expect(body['metadata']['reminder_minutes'], 15);
        expect(body['metadata']['attachments'], isA<List<dynamic>>());
        return {
          'id': 'evt_2',
          ...body,
          'status': 'active',
          'source_type': 'manual',
          'created_at': '2026-03-10T01:00:00Z',
          'updated_at': '2026-03-10T01:00:00Z',
        };
      });

      final api = CalendarApi(client);
      final created = await api.create(
        ScheduleItemModel(
          id: 'evt_local',
          ownerId: 'user-1',
          title: '评审',
          startAt: DateTime.utc(2026, 3, 11, 3),
          endAt: DateTime.utc(2026, 3, 11, 4),
          metadata: ScheduleMetadata(
            color: '#F59E0B',
            location: '线上',
            notes: '准备 demo',
            attachments: [Attachment(name: 'PRD', type: 'document')],
            reminderMinutes: 15,
            version: 1,
          ),
        ),
      );

      expect(created.id, 'evt_2');
      expect(created.metadata?.location, '线上');
    });

    test('update does not send unknown metadata fields', () async {
      final client = MockApiClient();
      client.registerHandler('/api/v1/schedule-items/evt_3', 'PATCH', (
        request,
      ) {
        final body = request.data as Map<String, dynamic>;
        final metadata = body['metadata'] as Map<String, dynamic>;
        expect(metadata.containsKey('new_field'), isFalse);
        expect(metadata['reminder_minutes'], 30);
        return {
          'id': 'evt_3',
          ...body,
          'status': 'active',
          'source_type': 'manual',
          'created_at': '2026-03-10T01:00:00Z',
          'updated_at': '2026-03-11T01:00:00Z',
        };
      });

      final api = CalendarApi(client);
      final event = ScheduleItemModel(
        id: 'evt_3',
        ownerId: 'user-1',
        title: '同步会',
        startAt: DateTime.utc(2026, 3, 11, 1),
        metadata: ScheduleMetadata.fromJson({
          'color': '#3B82F6',
          'location': '会议室B',
          'notes': '更新周报',
          'attachments': const [],
          'version': 1,
          'reminder_minutes': 30,
          'new_field': 'future',
        }),
      );

      final updated = await api.update(event);
      expect(updated.id, 'evt_3');
    });
  });
}