import { VerificationCodeService } from '../../../src/services/verification/verification-code.service';

// Mock cache
jest.mock('../../../src/config/redis', () => ({
  cache: {
    get: jest.fn(),
    set: jest.fn(),
    del: jest.fn(),
    exists: jest.fn(),
  },
}));

// Mock logger
jest.mock('../../../src/utils/logger', () => ({
  logger: {
    info: jest.fn(),
    error: jest.fn(),
    warn: jest.fn(),
  },
}));

describe('VerificationCodeService 单元测试', () => {
  let verificationService: VerificationCodeService;
  const mockCache = require('../../../src/config/redis').cache;

  beforeEach(() => {
    verificationService = new VerificationCodeService();
    jest.clearAllMocks();
  });

  describe('generateAndSendCode', () => {
    it('应该成功生成并发送验证码', async () => {
      const phone = '13800138000';
      const type = 'register';

      // Mock频率检查通过
      mockCache.exists.mockResolvedValue(false);

      // Mock存储成功
      mockCache.set.mockResolvedValue(true);

      const result = await verificationService.generateAndSendCode(phone, type);

      expect(mockCache.exists).toHaveBeenCalledWith(`rate_limit:${type}:${phone}`);
      expect(mockCache.set).toHaveBeenCalledWith(
        `verification:${type}:${phone}`,
        expect.objectContaining({
          code: expect.stringMatching(/^\d{6}$/),
          createdAt: expect.any(Number),
          attempts: 0,
          type,
        }),
        300 // 5分钟
      );
      expect(mockCache.set).toHaveBeenCalledWith(
        `rate_limit:${type}:${phone}`,
        '1',
        60 // 60秒
      );
      expect(result).toMatch(/^\d{6}$/);
    });

    it('应该拒绝频繁发送验证码', async () => {
      const phone = '13800138000';
      const type = 'register';

      // Mock频率检查不通过
      mockCache.exists.mockResolvedValue(true);

      await expect(verificationService.generateAndSendCode(phone, type))
        .rejects.toThrow('验证码发送过于频繁，请稍后重试');

      expect(mockCache.exists).toHaveBeenCalledWith(`rate_limit:${type}:${phone}`);
      expect(mockCache.set).not.toHaveBeenCalledWith(
        `verification:${type}:${phone}`,
        expect.any(Object),
        expect.any(Number)
      );
    });
  });

  describe('verifyCode', () => {
    it('应该成功验证正确的验证码', async () => {
      const phone = '13800138000';
      const code = '123456';
      const type = 'register';

      // Mock存储的验证码数据
      const codeData = {
        code: '123456',
        createdAt: Date.now() - 10000, // 10秒前创建
        attempts: 0,
        type,
      };

      mockCache.get.mockResolvedValue(codeData);
      mockCache.del.mockResolvedValue(true);

      const result = await verificationService.verifyCode(phone, code, type);

      expect(mockCache.get).toHaveBeenCalledWith(`verification:${type}:${phone}`);
      expect(mockCache.del).toHaveBeenCalledWith(`verification:${type}:${phone}`);
      expect(result).toBe(true);
    });

    it('应该拒绝错误的验证码', async () => {
      const phone = '13800138000';
      const code = '123456';
      const type = 'register';

      // Mock存储的验证码数据（不同的验证码）
      const codeData = {
        code: '654321',
        createdAt: Date.now() - 10000, // 10秒前创建
        attempts: 0,
        type,
      };

      mockCache.get.mockResolvedValue(codeData);
      mockCache.set.mockResolvedValue(true);

      const result = await verificationService.verifyCode(phone, code, type);

      expect(mockCache.get).toHaveBeenCalledWith(`verification:${type}:${phone}`);
      expect(mockCache.set).toHaveBeenCalledWith(
        `verification:${type}:${phone}`,
        expect.objectContaining({
          code: '654321',
          attempts: 1, // 尝试次数增加
        }),
        300
      );
      expect(result).toBe(false);
    });

    it('应该拒绝过期的验证码', async () => {
      const phone = '13800138000';
      const code = '123456';
      const type = 'register';

      // Mock没有找到验证码数据（已过期）
      mockCache.get.mockResolvedValue(null);

      await expect(verificationService.verifyCode(phone, code, type))
        .rejects.toThrow('验证码已过期，请重新获取');

      expect(mockCache.get).toHaveBeenCalledWith(`verification:${type}:${phone}`);
    });

    it('应该拒绝尝试次数过多的验证码', async () => {
      const phone = '13800138000';
      const code = '123456';
      const type = 'register';

      // Mock存储的验证码数据（尝试次数已达上限）
      const codeData = {
        code: '654321',
        createdAt: Date.now() - 10000, // 10秒前创建
        attempts: 5, // 已达到最大尝试次数
        type,
      };

      mockCache.get.mockResolvedValue(codeData);
      mockCache.del.mockResolvedValue(true);

      await expect(verificationService.verifyCode(phone, code, type))
        .rejects.toThrow('验证码尝试次数过多，请重新获取');

      expect(mockCache.get).toHaveBeenCalledWith(`verification:${type}:${phone}`);
      expect(mockCache.del).toHaveBeenCalledWith(`verification:${type}:${phone}`);
    });
  });

  describe('checkRateLimit', () => {
    it('应该允许在限制时间外发送验证码', async () => {
      const phone = '13800138000';
      const type = 'register';

      // Mock频率限制键不存在
      mockCache.exists.mockResolvedValue(false);

      const result = await verificationService.checkRateLimit(phone, type);

      expect(mockCache.exists).toHaveBeenCalledWith(`rate_limit:${type}:${phone}`);
      expect(result).toBe(true);
    });

    it('应该拒绝在限制时间内发送验证码', async () => {
      const phone = '13800138000';
      const type = 'register';

      // Mock频率限制键存在
      mockCache.exists.mockResolvedValue(true);

      const result = await verificationService.checkRateLimit(phone, type);

      expect(mockCache.exists).toHaveBeenCalledWith(`rate_limit:${type}:${phone}`);
      expect(result).toBe(false);
    });
  });

  describe('getStoredCode', () => {
    it('应该返回存储的验证码数据', async () => {
      const phone = '13800138000';
      const type = 'register';

      const codeData = {
        code: '123456',
        createdAt: Date.now() - 10000,
        attempts: 0,
        type,
      };

      mockCache.get.mockResolvedValue(codeData);

      const result = await verificationService.getStoredCode(phone, type);

      expect(mockCache.get).toHaveBeenCalledWith(`verification:${type}:${phone}`);
      expect(result).toEqual(codeData);
    });

    it('应该返回null当验证码不存在', async () => {
      const phone = '13800138000';
      const type = 'register';

      // Mock没有找到验证码数据
      mockCache.get.mockResolvedValue(null);

      const result = await verificationService.getStoredCode(phone, type);

      expect(mockCache.get).toHaveBeenCalledWith(`verification:${type}:${phone}`);
      expect(result).toBeNull();
    });
  });

  describe('deleteCode', () => {
    it('应该成功删除验证码', async () => {
      const phone = '13800138000';
      const type = 'register';

      mockCache.del.mockResolvedValue(true);

      await verificationService.deleteCode(phone, type);

      expect(mockCache.del).toHaveBeenCalledWith(`verification:${type}:${phone}`);
    });
  });
});