import { Test, TestingModule } from '@nestjs/testing';
import { SalesDashboardController } from '../controllers/dashboard.controller';
import { SalesDashboardService } from '../services/sales-dashboard.service';
import { LeadStatus, LeadSource } from '../entities/lead.entity';
import { OpportunityStage } from '../entities/opportunity.entity';

describe('SalesDashboardController', () => {
  let controller: SalesDashboardController;
  let dashboardService: jest.Mocked<SalesDashboardService>;

  const mockTenantId = '550e8400-e29b-41d4-a716-446655440001';
  const mockUserId = '550e8400-e29b-41d4-a716-446655440002';

  const mockRequestUser = {
    id: mockUserId,
    email: 'test@example.com',
    tenant_id: mockTenantId,
    role: 'admin',
  };

  const mockDashboardSummary = {
    totalLeads: 150,
    newLeadsThisMonth: 25,
    qualifiedLeads: 45,
    convertedLeads: 30,
    totalOpportunities: 80,
    openOpportunities: 50,
    wonOpportunities: 25,
    lostOpportunities: 5,
    totalPipelineValue: 500000,
    wonValue: 150000,
    averageDealSize: 6000,
    winRate: 83.33,
  };

  const mockLeadsByStatus = [
    { status: LeadStatus.NEW, count: 50 },
    { status: LeadStatus.CONTACTED, count: 35 },
    { status: LeadStatus.QUALIFIED, count: 45 },
    { status: LeadStatus.CONVERTED, count: 20 },
  ];

  const mockLeadsBySource = [
    { source: LeadSource.WEBSITE, count: 60 },
    { source: LeadSource.REFERRAL, count: 40 },
    { source: LeadSource.SOCIAL_MEDIA, count: 25 },
    { source: LeadSource.EVENT, count: 25 },
  ];

  const mockOpportunitiesByStage = [
    { stage: OpportunityStage.PROSPECTING, count: 15, value: 75000 },
    { stage: OpportunityStage.QUALIFICATION, count: 12, value: 60000 },
    { stage: OpportunityStage.PROPOSAL, count: 10, value: 100000 },
    { stage: OpportunityStage.NEGOTIATION, count: 8, value: 120000 },
    { stage: OpportunityStage.CLOSED_WON, count: 25, value: 150000 },
  ];

  const mockConversionFunnel = [
    { stage: 'Lead Created', count: 150, percentage: 100 },
    { stage: 'Qualified', count: 45, percentage: 30 },
    { stage: 'Opportunity Created', count: 35, percentage: 23 },
    { stage: 'Proposal Sent', count: 25, percentage: 17 },
    { stage: 'Won', count: 20, percentage: 13 },
  ];

  const mockSalesPerformance = [
    { userId: mockUserId, name: 'John Doe', leadsConverted: 10, opportunitiesWon: 5, totalValue: 50000 },
    { userId: 'user-2', name: 'Jane Smith', leadsConverted: 8, opportunitiesWon: 4, totalValue: 40000 },
  ];

  beforeEach(async () => {
    const mockDashboardService = {
      getDashboardSummary: jest.fn(),
      getLeadsByStatus: jest.fn(),
      getLeadsBySource: jest.fn(),
      getOpportunitiesByStage: jest.fn(),
      getConversionFunnel: jest.fn(),
      getSalesPerformance: jest.fn(),
    };

    const module: TestingModule = await Test.createTestingModule({
      controllers: [SalesDashboardController],
      providers: [
        {
          provide: SalesDashboardService,
          useValue: mockDashboardService,
        },
      ],
    }).compile();

    controller = module.get<SalesDashboardController>(SalesDashboardController);
    dashboardService = module.get(SalesDashboardService);
  });

  afterEach(() => {
    jest.clearAllMocks();
  });

  describe('getSummary', () => {
    it('should return dashboard summary', async () => {
      dashboardService.getDashboardSummary.mockResolvedValue(mockDashboardSummary);

      const result = await controller.getSummary(mockRequestUser);

      expect(dashboardService.getDashboardSummary).toHaveBeenCalledWith(mockTenantId);
      expect(result).toEqual(mockDashboardSummary);
      expect(result.totalLeads).toBe(150);
      expect(result.winRate).toBe(83.33);
    });
  });

  describe('getLeadsByStatus', () => {
    it('should return leads grouped by status', async () => {
      dashboardService.getLeadsByStatus.mockResolvedValue(mockLeadsByStatus);

      const result = await controller.getLeadsByStatus(mockRequestUser);

      expect(dashboardService.getLeadsByStatus).toHaveBeenCalledWith(mockTenantId);
      expect(result).toEqual(mockLeadsByStatus);
      expect(result.length).toBe(4);
    });
  });

  describe('getLeadsBySource', () => {
    it('should return leads grouped by source', async () => {
      dashboardService.getLeadsBySource.mockResolvedValue(mockLeadsBySource);

      const result = await controller.getLeadsBySource(mockRequestUser);

      expect(dashboardService.getLeadsBySource).toHaveBeenCalledWith(mockTenantId);
      expect(result).toEqual(mockLeadsBySource);
      expect(result.length).toBe(4);
    });
  });

  describe('getOpportunitiesByStage', () => {
    it('should return opportunities grouped by stage', async () => {
      dashboardService.getOpportunitiesByStage.mockResolvedValue(mockOpportunitiesByStage);

      const result = await controller.getOpportunitiesByStage(mockRequestUser);

      expect(dashboardService.getOpportunitiesByStage).toHaveBeenCalledWith(mockTenantId);
      expect(result).toEqual(mockOpportunitiesByStage);
      expect(result.length).toBe(5);
    });
  });

  describe('getConversionFunnel', () => {
    it('should return conversion funnel data', async () => {
      dashboardService.getConversionFunnel.mockResolvedValue(mockConversionFunnel);

      const result = await controller.getConversionFunnel(mockRequestUser);

      expect(dashboardService.getConversionFunnel).toHaveBeenCalledWith(mockTenantId);
      expect(result).toEqual(mockConversionFunnel);
      expect(result[0].percentage).toBe(100);
    });
  });

  describe('getSalesPerformance', () => {
    it('should return sales performance by user', async () => {
      dashboardService.getSalesPerformance.mockResolvedValue(mockSalesPerformance);

      const result = await controller.getSalesPerformance(mockRequestUser);

      expect(dashboardService.getSalesPerformance).toHaveBeenCalledWith(mockTenantId);
      expect(result).toEqual(mockSalesPerformance);
      expect(result.length).toBe(2);
    });
  });
});