cyh-tk-backend/test/database-persistence.e2e-spec.ts

import { DataService } from '../src/modules/data/data.service';
import { TikTokDataProvider } from '../src/modules/data/providers/tiktok-data.provider';
import { PublishStatus } from '../src/modules/dramas/drama-status.enum';
import { DramasService } from '../src/modules/dramas/dramas.service';
import { LogsService } from '../src/modules/logs/logs.service';
import { UsersService } from '../src/modules/users/users.service';

function createRepository<T extends { id?: number }>() {
  const records: T[] = [];
  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) =>
        Object.entries(where).every(
          ([key, value]) => item[key as keyof T] === value,
        ),
      ) ?? null,
    ),
    find: jest.fn(async () => [...records]),
    count: jest.fn(async () => records.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 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 = dramasService.createDrama({
      title: 'DB Metrics',
      coverUrl: 'https://cdn.example.com/cover.jpg',
      type: 'action',
      status: PublishStatus.Published,
    });
    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();
  });
});