/**
 * 许可证限制检查工具测试
 * 测试 lib/license/check-limits.ts 中的限制检查函数
 */

import {
  canCreateUser,
  canUploadMaterial,
  canUseCustomTemplates,
  canUseDepartmentIsolation,
  canUseIntranetPenetration,
  canUseSystemSettings,
  canUseApiAccess,
} from '../license/check-limits';

// Mock license-service 模块
jest.mock('../license/license-service', () => ({
  isFeatureEnabled: jest.fn(),
  getLicenseType: jest.fn(),
}));

jest.mock('../license/premium-module-service', () => ({
  getAuthorizedUsageLimits: jest.fn(),
  hasPremiumModule: jest.fn(),
  PREMIUM_MODULE_IDS: {
    LICENSE_LIMITS_CORE: 'license-limits-core',
    CUSTOM_TEMPLATES_CORE: 'custom-templates-core',
    INTRANET_PENETRATION_CORE: 'intranet-penetration-core',
  },
}));

jest.mock('@/lib/prisma', () => ({
  prisma: {
    user: { count: jest.fn() },
    material: { count: jest.fn() },
  },
}));

import { prisma } from '@/lib/prisma';
import { isFeatureEnabled, getLicenseType } from '../license/license-service';
import { getAuthorizedUsageLimits, hasPremiumModule } from '../license/premium-module-service';

const mockIsFeatureEnabled = isFeatureEnabled as jest.MockedFunction<typeof isFeatureEnabled>;
const mockGetLicenseType = getLicenseType as jest.MockedFunction<typeof getLicenseType>;
const mockGetAuthorizedUsageLimits = getAuthorizedUsageLimits as jest.MockedFunction<typeof getAuthorizedUsageLimits>;
const mockHasPremiumModule = hasPremiumModule as jest.MockedFunction<typeof hasPremiumModule>;
const mockUserCount = prisma.user.count as jest.MockedFunction<typeof prisma.user.count>;
const mockMaterialCount = prisma.material.count as jest.MockedFunction<typeof prisma.material.count>;

describe('canCreateUser', () => {
  beforeEach(() => {
    jest.clearAllMocks();
  });

  it('当未达到限制时应该返回 allowed: true', async () => {
    mockGetAuthorizedUsageLimits.mockResolvedValue({ maxUsers: 10, maxMaterials: 100 });
    mockUserCount.mockResolvedValue(5);

    const result = await canCreateUser();

    expect(result.allowed).toBe(true);
    expect(result.current).toBe(5);
    expect(result.max).toBe(10);
    expect(result.message).toBeUndefined();
    expect(mockGetAuthorizedUsageLimits).toHaveBeenCalled();
    expect(mockUserCount).toHaveBeenCalled();
  });

  it('当达到限制时（FREE 版本）应该返回授权处理提示', async () => {
    mockGetAuthorizedUsageLimits.mockResolvedValue({ maxUsers: 10, maxMaterials: 100 });
    mockUserCount.mockResolvedValue(10);
    mockGetLicenseType.mockResolvedValue('FREE');

    const result = await canCreateUser();

    expect(result.allowed).toBe(false);
    expect(result.message).toContain('当前许可证');
    expect(result.message).toContain('10');
    expect(result.message).toContain('联系管理员');
  });

  it('当达到限制时（非 FREE 版本）应该返回联系管理员提示', async () => {
    mockGetAuthorizedUsageLimits.mockResolvedValue({ maxUsers: 100, maxMaterials: 1000 });
    mockUserCount.mockResolvedValue(100);
    mockGetLicenseType.mockResolvedValue('STANDARD');

    const result = await canCreateUser();

    expect(result.allowed).toBe(false);
    expect(result.message).toContain('联系管理员');
    expect(result.message).toContain('100');
  });

  it('缺少限额授权模块时应该拒绝创建用户', async () => {
    mockGetAuthorizedUsageLimits.mockResolvedValue(null);

    const result = await canCreateUser();

    expect(result).toEqual({
      allowed: false,
      current: 0,
      max: 0,
      message: '授权限额模块不可用，请重新验证许可证或联系管理员。',
    });
    expect(mockUserCount).not.toHaveBeenCalled();
  });
});

describe('canUploadMaterial', () => {
  beforeEach(() => {
    jest.clearAllMocks();
  });

  it('当未达到限制时应该返回 allowed: true', async () => {
    mockGetAuthorizedUsageLimits.mockResolvedValue({ maxUsers: 10, maxMaterials: 100 });
    mockMaterialCount.mockResolvedValue(50);

    const result = await canUploadMaterial();

    expect(result.allowed).toBe(true);
    expect(result.current).toBe(50);
    expect(result.max).toBe(100);
    expect(mockGetAuthorizedUsageLimits).toHaveBeenCalled();
    expect(mockMaterialCount).toHaveBeenCalled();
  });

  it('当达到限制时（FREE 版本）应该返回授权处理提示', async () => {
    mockGetAuthorizedUsageLimits.mockResolvedValue({ maxUsers: 10, maxMaterials: 100 });
    mockMaterialCount.mockResolvedValue(100);
    mockGetLicenseType.mockResolvedValue('FREE');

    const result = await canUploadMaterial();

    expect(result.allowed).toBe(false);
    expect(result.message).toContain('当前许可证');
    expect(result.message).toContain('素材');
    expect(result.message).toContain('联系管理员');
  });

  it('当达到限制时（非 FREE 版本）应该返回联系管理员提示', async () => {
    mockGetAuthorizedUsageLimits.mockResolvedValue({ maxUsers: -1, maxMaterials: 1000 });
    mockMaterialCount.mockResolvedValue(1000);
    mockGetLicenseType.mockResolvedValue('PRO');

    const result = await canUploadMaterial();

    expect(result.allowed).toBe(false);
    expect(result.message).toContain('联系管理员');
  });

  it('缺少限额授权模块时应该拒绝上传素材', async () => {
    mockGetAuthorizedUsageLimits.mockResolvedValue(null);

    const result = await canUploadMaterial();

    expect(result).toEqual({
      allowed: false,
      current: 0,
      max: 0,
      message: '授权限额模块不可用，请重新验证许可证或联系管理员。',
    });
    expect(mockMaterialCount).not.toHaveBeenCalled();
  });
});

describe('功能开关检查', () => {
  beforeEach(() => {
    jest.clearAllMocks();
  });

  describe('canUseCustomTemplates', () => {
    it('当功能启用时应该返回 true', async () => {
      mockIsFeatureEnabled.mockResolvedValue(true);
      mockHasPremiumModule.mockResolvedValue(true);
      expect(await canUseCustomTemplates()).toBe(true);
      expect(mockIsFeatureEnabled).toHaveBeenCalledWith('customTemplates');
      expect(mockHasPremiumModule).toHaveBeenCalledWith('custom-templates-core');
    });

    it('当功能禁用时应该返回 false', async () => {
      mockIsFeatureEnabled.mockResolvedValue(false);
      expect(await canUseCustomTemplates()).toBe(false);
      expect(mockHasPremiumModule).not.toHaveBeenCalled();
    });

    it('当缺少付费能力模块凭证时应该返回 false', async () => {
      mockIsFeatureEnabled.mockResolvedValue(true);
      mockHasPremiumModule.mockResolvedValue(false);
      expect(await canUseCustomTemplates()).toBe(false);
    });
  });

  describe('canUseDepartmentIsolation', () => {
    it('当功能启用时应该返回 true', async () => {
      mockIsFeatureEnabled.mockResolvedValue(true);
      expect(await canUseDepartmentIsolation()).toBe(true);
      expect(mockIsFeatureEnabled).toHaveBeenCalledWith('departmentIsolation');
    });

    it('当功能禁用时应该返回 false', async () => {
      mockIsFeatureEnabled.mockResolvedValue(false);
      expect(await canUseDepartmentIsolation()).toBe(false);
    });
  });

  describe('canUseIntranetPenetration', () => {
    it('当功能启用时应该返回 true', async () => {
      mockIsFeatureEnabled.mockResolvedValue(true);
      mockHasPremiumModule.mockResolvedValue(true);
      expect(await canUseIntranetPenetration()).toBe(true);
      expect(mockIsFeatureEnabled).toHaveBeenCalledWith('intranetPenetration');
      expect(mockHasPremiumModule).toHaveBeenCalledWith('intranet-penetration-core');
    });

    it('当功能禁用时应该返回 false', async () => {
      mockIsFeatureEnabled.mockResolvedValue(false);
      expect(await canUseIntranetPenetration()).toBe(false);
      expect(mockHasPremiumModule).not.toHaveBeenCalled();
    });

    it('当缺少付费能力模块凭证时应该返回 false', async () => {
      mockIsFeatureEnabled.mockResolvedValue(true);
      mockHasPremiumModule.mockResolvedValue(false);
      expect(await canUseIntranetPenetration()).toBe(false);
    });
  });

  describe('canUseSystemSettings', () => {
    it('当功能启用时应该返回 true', async () => {
      mockIsFeatureEnabled.mockResolvedValue(true);
      expect(await canUseSystemSettings()).toBe(true);
      expect(mockIsFeatureEnabled).toHaveBeenCalledWith('systemSettings');
    });

    it('当功能禁用时应该返回 false', async () => {
      mockIsFeatureEnabled.mockResolvedValue(false);
      expect(await canUseSystemSettings()).toBe(false);
    });
  });

  describe('canUseApiAccess', () => {
    it('当功能启用时应该返回 true', async () => {
      mockIsFeatureEnabled.mockResolvedValue(true);
      expect(await canUseApiAccess()).toBe(true);
      expect(mockIsFeatureEnabled).toHaveBeenCalledWith('apiAccess');
    });

    it('当功能禁用时应该返回 false', async () => {
      mockIsFeatureEnabled.mockResolvedValue(false);
      expect(await canUseApiAccess()).toBe(false);
    });
  });
});

describe('LimitCheckResult 接口', () => {
  it('应该正确处理无限制情况 (max = -1)', async () => {
    mockGetAuthorizedUsageLimits.mockResolvedValue({ maxUsers: -1, maxMaterials: -1 });

    const result = await canCreateUser();

    expect(result.allowed).toBe(true);
    expect(result.max).toBe(-1);
    expect(mockUserCount).not.toHaveBeenCalled();
  });
});