/**
 * OmniCard AI (CRMmp) - 名片主独立数据统计与漏斗分析页测试套件 (TDD Red -> Green)
 *
 * 验证独立统计页面的数据计算、漏斗转化分析、渠道矩阵与界面规范
 * R31: 接口失败/缺字段时数字为 0、图表为空，禁止示例柱与写死访客数
 */

import * as fs from 'fs';
import * as path from 'path';

const STATS_PAGE = path.resolve(
  __dirname,
  '../../../mpuniapp/pages/owner/stats.uvue'
);
const STATS_UTS = path.resolve(
  __dirname,
  '../../../mpuniapp/pages/owner/useStats.uts'
);
const PAGES_JSON = path.resolve(
  __dirname,
  '../../../mpuniapp/pages.json'
);

type StatsPeriod = 'today' | '7d' | '30d' | 'all';

type LeadEntity = {
  id: string | number;
  cardId: string | number;
  name: string;
  company?: string;
  status: 'new' | 'contacted' | 'hot' | 'won' | 'archived';
  intentScore: number;
  source: 'nfc' | 'qr' | 'link' | 'ai_chat';
};

type FunnelStep = {
  key: string;
  label: string;
  count: number;
  rate: number;
};

type ChannelMetric = {
  source: 'nfc' | 'qr' | 'link' | 'ai_chat';
  label: string;
  leadsCount: number;
  wonCount: number;
  conversionRate: number;
};

type StatsSummary = {
  totalLeads: number;
  hotLeads: number;
  wonLeads: number;
  overallRate: number;
};

type StatsState = {
  period: StatsPeriod;
  summary: StatsSummary;
  funnel: FunnelStep[];
  channels: ChannelMetric[];
  loading: boolean;
  errorMessage: string;
};

type OwnerPageQuery = {
  page: number;
  size: number;
};

type OwnerPageData<T> = {
  list: T[];
  pagination?: {
    page: number;
    size: number;
    total: number;
  };
};

type LoadStatsApi = {
  fetchOwnerLeadPage?: (
    query: OwnerPageQuery
  ) => Promise<OwnerPageData<LeadEntity> | Record<string, unknown> | null>;
};

type UseStatsModule = {
  createStatsState: () => StatsState;
  calcConversionRate: (total: number, won: number) => number;
  calcFunnelStepRate: (currentCount: number, baseCount: number) => number;
  computeStatsFromLeads: (leads: LeadEntity[], period: StatsPeriod) => StatsState;
  loadStatsData: (state: StatsState, api?: LoadStatsApi) => Promise<void>;
  resolveStatsText: (key: string) => string;
  resetStatsToEmpty: (state: StatsState) => void;
};

const EMOJI_RE = /[\u2600-\u27BF\uFE0F]|[\uD83C-\uDBFF][\uDC00-\uDFFF]/;

function loadUseStats(): UseStatsModule {
  // eslint-disable-next-line @typescript-eslint/no-require-imports
  return require(STATS_UTS) as UseStatsModule;
}

function buildLead(partial: Partial<LeadEntity> & Pick<LeadEntity, 'id' | 'name' | 'status'>): LeadEntity {
  return {
    cardId: 1,
    intentScore: 40,
    source: 'link',
    ...partial,
  };
}

describe('OmniCard AI 名片主独立统计与漏斗业务层 (useStats.uts)', () => {
  beforeEach(() => {
    jest.resetModules();
    (global as { uni?: Record<string, unknown> }).uni = {
      getLocale: () => 'zh-CN',
      showToast: jest.fn(),
      navigateTo: jest.fn(),
    };
  });

  afterEach(() => {
    delete (global as { uni?: Record<string, unknown> }).uni;
  });

  describe('1. 漏斗与转化率纯函数计算', () => {
    it('1.1 calcConversionRate 在总数为0时返回0，正常时保留一位小数', () => {
      const { calcConversionRate } = loadUseStats();
      expect(calcConversionRate(0, 0)).toBe(0);
      expect(calcConversionRate(0, 5)).toBe(0);
      expect(calcConversionRate(10, 3)).toBe(30);
      expect(calcConversionRate(3, 1)).toBe(33.3);
      expect(calcConversionRate(7, 2)).toBe(28.6);
    });

    it('1.2 calcFunnelStepRate 计算阶梯相对率', () => {
      const { calcFunnelStepRate } = loadUseStats();
      expect(calcFunnelStepRate(0, 100)).toBe(0);
      expect(calcFunnelStepRate(50, 100)).toBe(50);
      expect(calcFunnelStepRate(80, 0)).toBe(0);
    });
  });

  describe('2. computeStatsFromLeads 多维度聚合', () => {
    it('2.1 从潜客样本计算出总数、高意向、成交数与漏斗4阶梯', () => {
      const { computeStatsFromLeads } = loadUseStats();
      const mockLeads: LeadEntity[] = [
        buildLead({ id: 1, name: 'Lead 1', status: 'new', intentScore: 40, source: 'nfc' }),
        buildLead({ id: 2, name: 'Lead 2', status: 'hot', intentScore: 85, source: 'qr' }),
        buildLead({ id: 3, name: 'Lead 3', status: 'contacted', intentScore: 70, source: 'link' }),
        buildLead({ id: 4, name: 'Lead 4', status: 'won', intentScore: 92, source: 'ai_chat' }),
      ];

      const state = computeStatsFromLeads(mockLeads, 'all');

      expect(state.summary.totalLeads).toBe(4);
      expect(state.summary.wonLeads).toBe(1);
      expect(state.summary.hotLeads).toBe(2); // intentScore >= 80 (Lead 2, Lead 4) or status === 'hot'
      expect(state.summary.overallRate).toBe(25);

      // 漏斗必须包含 new, hot, contacted, won 四个阶梯
      expect(state.funnel).toHaveLength(4);
      expect(state.funnel[0].key).toBe('new');
      expect(state.funnel[3].key).toBe('won');

      // 渠道分析必须覆盖 4 种渠道
      expect(state.channels).toHaveLength(4);
      const aiChannel = state.channels.find(c => c.source === 'ai_chat');
      expect(aiChannel).toBeDefined();
      expect(aiChannel?.leadsCount).toBe(1);
      expect(aiChannel?.wonCount).toBe(1);
      expect(aiChannel?.conversionRate).toBe(100);
    });

    it('2.2 空列表时数字为 0、漏斗与渠道图表为空，不造示例百分比', () => {
      const { computeStatsFromLeads } = loadUseStats();
      const state = computeStatsFromLeads([], 'all');

      expect(state.summary.totalLeads).toBe(0);
      expect(state.summary.hotLeads).toBe(0);
      expect(state.summary.wonLeads).toBe(0);
      expect(state.summary.overallRate).toBe(0);
      expect(state.funnel).toEqual([]);
      expect(state.channels).toEqual([]);
    });
  });

  describe('3. loadStatsData 失败/缺字段清零 (R31)', () => {
    it('3.1 接口失败时数字归零、图表清空，不保留旧值填洞', async () => {
      const { createStatsState, loadStatsData } = loadUseStats();
      const state = createStatsState();
      state.summary = {
        totalLeads: 128,
        hotLeads: 36,
        wonLeads: 12,
        overallRate: 45.5,
      };
      state.funnel = [
        { key: 'new', label: 'New', count: 128, rate: 100 },
        { key: 'hot', label: 'Hot', count: 36, rate: 28 },
      ];
      state.channels = [
        { source: 'nfc', label: 'NFC', leadsCount: 64, wonCount: 8, conversionRate: 12.5 },
      ];
      state.errorMessage = '';

      const fetchOwnerLeadPage = jest.fn(async () => {
        throw new Error('network down');
      });

      await loadStatsData(state, { fetchOwnerLeadPage });

      expect(fetchOwnerLeadPage).toHaveBeenCalledTimes(1);
      expect(state.errorMessage).toBe('network down');
      expect(state.summary.totalLeads).toBe(0);
      expect(state.summary.hotLeads).toBe(0);
      expect(state.summary.wonLeads).toBe(0);
      expect(state.summary.overallRate).toBe(0);
      expect(state.funnel).toEqual([]);
      expect(state.channels).toEqual([]);
      expect(state.loading).toBe(false);
    });

    it('3.2 响应缺 list 字段时按空数据处理，数字为 0、图表为空', async () => {
      const { createStatsState, loadStatsData } = loadUseStats();
      const state = createStatsState();
      state.summary.totalLeads = 99;

      const fetchOwnerLeadPage = jest.fn(async () => ({ pagination: { page: 1, size: 100, total: 0 } }));

      await loadStatsData(state, { fetchOwnerLeadPage });

      expect(state.errorMessage).toBe('');
      expect(state.summary.totalLeads).toBe(0);
      expect(state.summary.hotLeads).toBe(0);
      expect(state.summary.wonLeads).toBe(0);
      expect(state.summary.overallRate).toBe(0);
      expect(state.funnel).toEqual([]);
      expect(state.channels).toEqual([]);
    });

    it('3.3 成功时仅使用接口 list 聚合，不写死访客数', async () => {
      const { createStatsState, loadStatsData } = loadUseStats();
      const state = createStatsState();
      const fetchOwnerLeadPage = jest.fn(async () => ({
        list: [
          buildLead({ id: 1, name: 'A', status: 'new', intentScore: 20, source: 'nfc' }),
          buildLead({ id: 2, name: 'B', status: 'won', intentScore: 90, source: 'qr' }),
        ],
        pagination: { page: 1, size: 100, total: 2 },
      }));

      await loadStatsData(state, { fetchOwnerLeadPage });

      expect(state.errorMessage).toBe('');
      expect(state.summary.totalLeads).toBe(2);
      expect(state.summary.wonLeads).toBe(1);
      expect(state.summary.overallRate).toBe(50);
      expect(state.funnel.length).toBe(4);
      expect(state.channels.length).toBe(4);
      expect(state.summary.totalLeads).not.toBe(128);
    });
  });

  describe('4. i18n 文案', () => {
    it('4.1 resolveStatsText 走现有词典，空/错/重试非空', () => {
      const { resolveStatsText } = loadUseStats();
      expect(resolveStatsText('title').length).toBeGreaterThan(0);
      expect(resolveStatsText('empty').length).toBeGreaterThan(0);
      expect(resolveStatsText('error').length).toBeGreaterThan(0);
      expect(resolveStatsText('retry').length).toBeGreaterThan(0);
      expect(resolveStatsText('metricTotal').length).toBeGreaterThan(0);
    });
  });
});

describe('OmniCard AI 独立统计视图契约 (stats.uvue & pages.json)', () => {
  it('1. pages.json 中已成功注册 pages/owner/stats 页面路由', () => {
    expect(fs.existsSync(PAGES_JSON)).toBe(true);
    const content = fs.readFileSync(PAGES_JSON, 'utf-8');
    const cleanJson = content.replace(/\/\*[\s\S]*?\*\/|([^:]|^)\/\/.*$/gm, '$1');
    const config = JSON.parse(cleanJson);

    const hasRoute = config.pages.some(
      (p: { path: string }) => p.path === 'pages/owner/stats'
    );
    expect(hasRoute).toBe(true);
  });

  it('2. stats.uvue 包含完整的便当盒统计组件与设计 Token', () => {
    expect(fs.existsSync(STATS_PAGE)).toBe(true);
    expect(fs.existsSync(STATS_UTS)).toBe(true);

    const pageSource = fs.readFileSync(STATS_PAGE, 'utf8');
    const logicSource = fs.readFileSync(STATS_UTS, 'utf8');

    expect(pageSource.includes('script setup lang="uts"')).toBe(true);
    expect(pageSource.includes('#0B5CFF')).toBe(true);
    expect(pageSource.includes('#F7F8FA')).toBe(true);
    expect(pageSource.includes('#101828')).toBe(true);
    expect(pageSource.includes('#667085')).toBe(true);
    expect(pageSource.includes('#E3E7ED')).toBe(true);
    expect(pageSource.includes('period-chip')).toBe(true);
    expect(pageSource.includes('stats-funnel')).toBe(true);
    expect(pageSource.includes('channel-grid')).toBe(true);
    expect(logicSource.includes('resolveStatsText')).toBe(true);
    expect(logicSource.includes('fetchOwnerLeadPage')).toBe(true);
  });

  it('3. stats.uvue 无 emoji、无 any、模板无硬编码中文', () => {
    const pageSource = fs.readFileSync(STATS_PAGE, 'utf8');
    const logicSource = fs.readFileSync(STATS_UTS, 'utf8');
    const template = pageSource.split('<script')[0];

    expect(EMOJI_RE.test(pageSource)).toBe(false);
    expect(EMOJI_RE.test(logicSource)).toBe(false);
    expect(pageSource.includes(': any') || pageSource.includes(' as any')).toBe(false);
    expect(logicSource.includes(': any') || logicSource.includes(' as any')).toBe(false);
    expect(/[\u4e00-\u9fff]/.test(template)).toBe(false);
  });

  it('4. R31: 健康度柱与漏斗禁止示例柱/写死访客数填洞', () => {
    const pageSource = fs.readFileSync(STATS_PAGE, 'utf8');
    const logicSource = fs.readFileSync(STATS_UTS, 'utf8');
    const combined = `${pageSource}\n${logicSource}`;
    const script = pageSource.includes('<script')
      ? pageSource.split('<script')[1].split('</script>')[0]
      : '';

    // 健康度 flex 不得在无数据时回落为 1（示例柱）
    expect(script.includes('? state.summary.hotLeads : 1')).toBe(false);
    expect(script.includes('warm > 0 ? warm : 1')).toBe(false);
    expect(script.includes('healthCoolFlex') && /healthCoolFlex[\s\S]*return 1;/.test(script)).toBe(
      false
    );
    expect(script.includes(': 1') && script.includes('healthHotFlex')).toBe(false);

    // 禁止写死访客/示例数
    expect(combined.includes('totalLeads: 128')).toBe(false);
    expect(combined.includes('访客数')).toBe(false);
    expect(logicSource.includes('示例')).toBe(false);
    expect(pageSource.includes('示例柱')).toBe(false);

    // 失败清零与空图表
    expect(logicSource.includes('resetStatsToEmpty') || logicSource.includes('funnel = []')).toBe(
      true
    );
    expect(logicSource.includes('channels = []') || logicSource.includes('funnel: []')).toBe(true);
  });

  it('5. 模板文案走 resolveStatsText / t()，徽章不硬编码英文装饰字', () => {
    const pageSource = fs.readFileSync(STATS_PAGE, 'utf8');
    const template = pageSource.split('<script')[0];

    expect(template.includes('{{ t(')).toBe(true);
    expect(template.includes('>TOTAL<')).toBe(false);
    expect(template.includes('>HOT<')).toBe(false);
    expect(template.includes('>WON<')).toBe(false);
    expect(template.includes('>CVR<')).toBe(false);
    expect(template.includes('% CVR')).toBe(false);
    expect(template.includes('4 STAGES')).toBe(false);
    expect(template.includes("t('badgeRate')") || template.includes('t("badgeRate")')).toBe(
      true
    );
  });
});