import { AdminService } from '../src/admin/admin.service';
import { DataService } from '../src/data/data.service';
import { TikTokDataProvider } from '../src/data/data.provider';
import { PublishStatus } from '../src/dramas/dramas.types';
import { DramasService } from '../src/dramas/dramas.service';
import { LogsService } from '../src/logs/logs.service';
import { UsersService } from '../src/users/users.service';

function createRepository<T extends { id?: number }>() {
  const records: T[] = [];
  const matchesWhere = (item: T, where?: Partial<T>) => {
    if (!where) {
      return true;
    }
    return Object.entries(where).every(
      ([key, value]) => item[key as keyof T] === value,
    );
  };

  return {
    records,
    create: jest.fn((input: Partial<T>) => input as T),
    save: jest.fn(async (input: T) => {
      if (!input.id) {
        input.id = records.length + 1;
      }
      const index = records.findIndex((item) => item.id === input.id);
      if (index >= 0) {
        records[index] = input;
      } else {
        records.push(input);
      }
      return input;
    }),
    findOne: jest.fn(async ({ where }: { where: Partial<T> }) =>
      records.find((item) => matchesWhere(item, where)) ?? null,
    ),
    find: jest.fn(async () => [...records]),
    findAndCount: jest.fn(
      async ({ where, skip = 0, take = records.length }: { where?: Partial<T>; skip?: number; take?: number }) => {
        const filtered = records.filter((item) => matchesWhere(item, where));
        return [filtered.slice(skip, skip + take), filtered.length];
      },
    ),
    count: jest.fn(async ({ where }: { where?: Partial<T> } = {}) =>
      records.filter((item) => matchesWhere(item, where)).length,
    ),
  };
}

function createDataSource(repositories: Record<string, unknown>) {
  return {
    isInitialized: true,
    getRepository: jest.fn((entity: { name: string }) => {
      const repository = repositories[entity.name];
      if (!repository) {
        throw new Error(`Missing repository for ${entity.name}`);
      }
      return repository;
    }),
  };
}

describe('database-backed persistence', () => {
  it('persists permissions and admin profile changes through TypeORM repositories', async () => {
    const permissionRepository = createRepository();
    const roleRepository = createRepository();
    const adminUserRepository = createRepository();
    const dataSource = createDataSource({
      Permission: permissionRepository,
      Role: roleRepository,
      AdminUser: adminUserRepository,
    });
    const service = new AdminService(
      { signAsync: jest.fn() } as never,
      dataSource as never,
    );

    await service.onModuleInit();

    const permissions = await service.listPermissions({ page: 1, pageSize: 50 });
    expect(permissions.list).toEqual(
      expect.arrayContaining([
        expect.objectContaining({ code: 'permission:read', name: '查看权限' }),
        expect.objectContaining({ code: 'data:read', name: '查看数据' }),
      ]),
    );

    const updated = await service.updateProfile(1, {
      nickname: '数据库管理员',
      email: 'db-admin@example.com',
    });

    expect(updated).toMatchObject({
      id: 1,
      nickname: '数据库管理员',
      email: 'db-admin@example.com',
    });
    expect(adminUserRepository.save).toHaveBeenCalledWith(
      expect.objectContaining({
        nickname: '数据库管理员',
        email: 'db-admin@example.com',
      }),
    );
  });

  it('persists app users through TypeORM repositories when a DataSource is configured', async () => {
    const userRepository = createRepository();
    const dataSource = createDataSource({ User: userRepository });
    const service = new UsersService(dataSource as never);

    const result = await service.upsertTikTokUser({
      tiktokOpenId: 'open-db-1',
      nickname: 'DB User',
    });

    expect(result.isNewUser).toBe(true);
    expect(userRepository.save).toHaveBeenCalledWith(
      expect.objectContaining({
        tiktokOpenId: 'open-db-1',
        nickname: 'DB User',
        status: 'active',
      }),
    );
  });

  it('persists request logs and playback error logs through TypeORM repositories', async () => {
    const requestLogRepository = createRepository();
    const playbackErrorLogRepository = createRepository();
    const dataSource = createDataSource({
      RequestLog: requestLogRepository,
      PlaybackErrorLog: playbackErrorLogRepository,
    });
    const service = new LogsService(dataSource as never);

    await service.recordRequest({
      requestId: '00000000-0000-4000-8000-000000000001',
      method: 'GET',
      path: '/api/admin/v1/logs',
      statusCode: 200,
      responseCode: 0,
      message: 'success',
      costMs: 3,
    });
    await service.createPlaybackError({
      requestId: '00000000-0000-4000-8000-000000000002',
      dramaId: 1,
      episodeId: 2,
      playUrl: 'https://cdn.example.com/video.mp4',
      playerErrorCode: 'NETWORK',
      message: 'network error',
      occurredAt: '2026-07-01T00:00:00.000Z',
    });

    expect(requestLogRepository.save).toHaveBeenCalled();
    expect(playbackErrorLogRepository.save).toHaveBeenCalled();
  });

  it('persists synced drama and episode metrics through TypeORM repositories', async () => {
    const dramaMetricRepository = createRepository();
    const episodeMetricRepository = createRepository();
    const syncJobRepository = createRepository();
    const dataSource = createDataSource({
      DramaMetric: dramaMetricRepository,
      EpisodeMetric: episodeMetricRepository,
      DataSyncJob: syncJobRepository,
    });
    const dramasService = new DramasService();
    const tiktokDataProvider = new TikTokDataProvider();
    const service = new DataService(
      dramasService,
      tiktokDataProvider,
      dataSource as never,
    );

    const drama = await dramasService.createDrama({
      title: 'DB Metrics',
      coverUrl: 'https://cdn.example.com/cover.jpg',
      type: 'action',
      status: PublishStatus.Published,
    });
    await dramasService.createEpisode({
      dramaId: drama.id,
      episodeNo: 1,
      title: 'DB Metrics Episode',
      coverUrl: drama.coverUrl,
      videoUrl: 'https://cdn.example.com/video.mp4',
      durationSeconds: 180,
      status: PublishStatus.Published,
    });

    await service.sync({ dramaId: drama.id });

    expect(dramaMetricRepository.save).toHaveBeenCalled();
    expect(episodeMetricRepository.save).toHaveBeenCalled();
    expect(syncJobRepository.save).toHaveBeenCalled();
  });

  it('aggregates episode metric plays for database-backed drama lists', async () => {
    const now = new Date('2026-07-02T00:00:00.000Z');
    const dramaRepository = createRepository<any>();
    const episodeRepository = createRepository<any>();
    const queryBuilder = {
      select: jest.fn().mockReturnThis(),
      addSelect: jest.fn().mockReturnThis(),
      where: jest.fn().mockReturnThis(),
      groupBy: jest.fn().mockReturnThis(),
      getRawMany: jest.fn(async () => [{ dramaId: '1', plays: '321' }]),
    };
    const episodeMetricRepository = {
      createQueryBuilder: jest.fn(() => queryBuilder),
    };
    const dataSource = createDataSource({
      Drama: dramaRepository,
      Episode: episodeRepository,
      EpisodeMetric: episodeMetricRepository,
    });
    const service = new DramasService(dataSource as never);

    await dramaRepository.save({
      id: 1,
      title: 'DB Plays Drama',
      coverUrl: 'https://cdn.example.com/db-plays.jpg',
      type: 'action',
      tags: [],
      status: PublishStatus.Published,
      sortOrder: 0,
      isRecommended: false,
      onlineVersion: 1,
      createdAt: now,
      updatedAt: now,
    });
    await episodeRepository.save({
      id: 1,
      dramaId: 1,
      episodeNo: 1,
      title: 'Episode 1',
      coverUrl: 'https://cdn.example.com/ep1.jpg',
      durationSeconds: 180,
      isPaid: false,
      freeType: 'free',
      price: 0,
      status: PublishStatus.Published,
      publishStatus: PublishStatus.Published,
      reviewStatus: 'approved',
      createdAt: now,
      updatedAt: now,
    });

    const adminList = await service.listAdminDramas({ page: 1, pageSize: 10 });
    const appList = await service.listPublishedDramas({ page: 1, pageSize: 10 });

    expect(adminList.list[0]).toMatchObject({
      title: 'DB Plays Drama',
      plays: 321,
    });
    expect(appList.list[0]).toMatchObject({
      title: 'DB Plays Drama',
      plays: 321,
    });
    expect(queryBuilder.where).toHaveBeenCalledWith(
      'metric.dramaId IN (:...dramaIds)',
      { dramaIds: [1] },
    );
  });
});