import { CrmRadarService } from '../../../src/modules/crm/service/radar';

describe('性能与防 OOM: 雷达国家分布与时段统计原生 SQL 聚合机制', () => {
  let radarService: CrmRadarService;
  let mockQb: any;
  let mockTrackRepo: any;

  beforeEach(() => {
    mockQb = {
      select: jest.fn().mockReturnThis(),
      addSelect: jest.fn().mockReturnThis(),
      groupBy: jest.fn().mockReturnThis(),
      where: jest.fn().mockReturnThis(),
      getRawMany: jest.fn().mockResolvedValue([
        { country: 'United Arab Emirates', visitorCount: '30', avgStayDurationMs: '45000' },
        { country: 'Germany', visitorCount: '20', avgStayDurationMs: '30000' },
        { country: 'United States', visitorCount: '10', avgStayDurationMs: '20000' },
      ]),
    };

    mockTrackRepo = {
      createQueryBuilder: jest.fn().mockReturnValue(mockQb),
      find: jest.fn(),
    };

    radarService = new CrmRadarService();
    radarService.crmTrackEntity = mockTrackRepo;
  });

  it('getCountryDistribution 必须使用 createQueryBuilder 原生 GROUP BY 聚合，严禁全表 find 加载至内存', async () => {
    const result = await radarService.getCountryDistribution(101);

    expect(mockTrackRepo.createQueryBuilder).toHaveBeenCalledWith('track');
    expect(mockQb.select).toHaveBeenCalled();
    expect(mockQb.groupBy).toHaveBeenCalled();
    expect(mockQb.where).toHaveBeenCalledWith('track.card_id = :cardId', { cardId: 101 });
    expect(mockTrackRepo.find).not.toHaveBeenCalled();

    expect(result).toHaveLength(3);
    expect(result[0].country).toBe('United Arab Emirates');
    expect(result[0].visitorCount).toBe(30);
    expect(result[0].percentage).toBe(50); // 30 / 60 * 100
    expect(result[0].avgStayDurationMs).toBe(45000);
  });
});

describe('R25: 语言占比与设备占比必须来自足迹真实计数', () => {
  let radarService: CrmRadarService;
  let trackList: any[];

  beforeEach(() => {
    trackList = [];
    radarService = new CrmRadarService();
    radarService.crmTrackEntity = {
      find: jest.fn(async (options?: any) => {
        let list = [...trackList];
        if (options?.where?.cardId !== undefined) {
          list = list.filter((t) => Number(t.cardId) === Number(options.where.cardId));
        }
        return list;
      }),
    } as any;
  });

  it('无足迹时语言占比与设备占比均返回空数组，不得填示例语言或零值渠道', async () => {
    const languages = await radarService.getLanguageStats();
    const devices = await radarService.getDeviceStats();

    expect(languages).toEqual([]);
    expect(devices).toEqual([]);
    expect(JSON.stringify(languages)).not.toMatch(/zh-CN|en-US|ar-SA|English|中文/i);
    expect(JSON.stringify(devices)).not.toMatch(/iPhone|Android|iOS|Samsung/i);
  });

  it('足迹无 language/locale 字段时语言占比仍为空，不得用国家或固定比例冒充', async () => {
    trackList = [
      { id: 1, cardId: 10, country: 'United States', touchType: 'nfc' },
      { id: 2, cardId: 10, country: 'Germany', touchType: 'qr' },
    ];

    const languages = await radarService.getLanguageStats(10);
    expect(languages).toEqual([]);
    expect(languages.map((i) => i.percentage)).not.toEqual([40, 35, 25]);
  });

  it('设备占比按 touchType 真实计数，仅返回有数据的类型与占比', async () => {
    trackList = [
      { id: 1, cardId: 10, touchType: 'nfc' },
      { id: 2, cardId: 10, touchType: 'nfc' },
      { id: 3, cardId: 10, touchType: 'qr' },
      { id: 4, cardId: 10, touchType: 'link' },
    ];

    const devices = await radarService.getDeviceStats(10);
    expect(devices).toHaveLength(3);

    const byType = Object.fromEntries(devices.map((d) => [d.type, d]));
    expect(byType.nfc.count).toBe(2);
    expect(byType.nfc.percentage).toBe(50);
    expect(byType.qr.count).toBe(1);
    expect(byType.qr.percentage).toBe(25);
    expect(byType.link.count).toBe(1);
    expect(byType.link.percentage).toBe(25);
    expect(devices.every((d) => d.count > 0)).toBe(true);
  });

  it('仅出现部分渠道时不补齐未出现的 nfc/qr/link 零值行', async () => {
    trackList = [
      { id: 1, cardId: 10, touchType: 'nfc' },
      { id: 2, cardId: 10, touchType: 'nfc' },
    ];

    const devices = await radarService.getDeviceStats(10);
    expect(devices).toEqual([{ type: 'nfc', count: 2, percentage: 100 }]);
  });

  it('若足迹带有 language 字段则按真实计数聚合语言占比', async () => {
    trackList = [
      { id: 1, cardId: 10, language: 'en-US', touchType: 'link' },
      { id: 2, cardId: 10, language: 'en-US', touchType: 'link' },
      { id: 3, cardId: 10, language: 'ar-SA', touchType: 'qr' },
    ];

    const languages = await radarService.getLanguageStats(10);
    expect(languages).toHaveLength(2);
    const byLang = Object.fromEntries(languages.map((l) => [l.language, l]));
    expect(byLang['en-US'].count).toBe(2);
    expect(byLang['en-US'].percentage).toBeCloseTo(66.7, 0);
    expect(byLang['ar-SA'].count).toBe(1);
    expect(byLang['ar-SA'].percentage).toBeCloseTo(33.3, 0);
  });
});