import {beforeAll, beforeEach, describe, expect, it} from 'vitest';
import {CampaignAudienceType, CampaignStatus} from '@plunk/db';
import {factories, getPrismaClient} from '../../../../../test/helpers';

// Note: To run these integration tests, you need to:
// 1. Have the API server running or import the app instance
// 2. For now, these tests demonstrate the pattern for integration testing

describe('Campaigns API Integration Tests', () => {
  let projectId: string;
  let _authToken: string;
  let _apiUrl: string;
  const prisma = getPrismaClient();

  beforeAll(() => {
    // In a real setup, you'd either:
    // 1. Import the Express app instance
    // 2. Or use the actual API server URL
    _apiUrl = process.env.TEST_API_URL || 'http://localhost:3000';
  });

  beforeEach(async () => {
    const {project} = await factories.createUserWithProject();
    projectId = project.id;

    // Generate auth token (you'd need to implement this based on your auth system)
    // This is a placeholder - adjust based on your actual auth implementation
    _authToken = 'test-jwt-token';
  });

  describe('POST /campaigns', () => {
    it('should create a new campaign', async () => {
      const campaignData = {
        name: 'Test Campaign',
        subject: 'Test Subject',
        body: '<p>Test Body</p>',
        from: 'test@example.com',
        audienceType: CampaignAudienceType.ALL,
      };

      // Example of how the integration test would look
      // Uncomment when you have the app instance available:
      /*
      const response = await request(app)
        .post('/campaigns')
        .set('Authorization', `Bearer ${authToken}`)
        .send(campaignData)
        .expect(201);

      expect(response.body.name).toBe('Test Campaign');
      expect(response.body.status).toBe(CampaignStatus.DRAFT);
      */

      // For now, just verify the factory can create the data
      const campaign = await factories.createCampaign({
        projectId,
        ...campaignData,
      });

      expect(campaign.name).toBe('Test Campaign');
    });

    it('should validate required fields', async () => {
      // Test that API validates required fields
      // This would fail without name, subject, etc.

      const _invalidData = {
        from: 'test@example.com',
      };

      // When integrated with supertest:
      /*
      await request(app)
        .post('/campaigns')
        .set('Authorization', `Bearer ${_authToken}`)
        .send(_invalidData)
        .expect(400);
      */
    });
  });

  describe('GET /campaigns', () => {
    it('should list campaigns with pagination', async () => {
      // Create test campaigns using bulk insert to avoid memory issues
      const campaignData = Array.from({length: 25}, (_, i) => ({
        projectId,
        name: `Campaign ${i}`,
        subject: 'Test Subject',
        body: '<p>Test Body</p>',
        from: 'test@example.com',
        status: 'DRAFT' as const,
      }));

      await prisma.campaign.createMany({data: campaignData});

      // When integrated:
      /*
      const response = await request(app)
        .get('/campaigns')
        .query({ page: 1, pageSize: 10 })
        .set('Authorization', `Bearer ${authToken}`)
        .expect(200);

      expect(response.body.campaigns).toHaveLength(10);
      expect(response.body.total).toBe(25);
      expect(response.body.totalPages).toBe(3);
      */

      const campaigns = await prisma.campaign.findMany({
        where: {projectId},
        take: 10,
      });

      expect(campaigns.length).toBeLessThanOrEqual(10);
    });

    it('should filter campaigns by status', async () => {
      await factories.createCampaign({projectId, status: CampaignStatus.DRAFT});
      await factories.createCampaign({projectId, status: CampaignStatus.COMPLETED});

      // When integrated:
      /*
      const response = await request(app)
        .get('/campaigns')
        .query({ status: CampaignStatus.DRAFT })
        .set('Authorization', `Bearer ${authToken}`)
        .expect(200);

      expect(response.body.campaigns.every(c => c.status === CampaignStatus.DRAFT)).toBe(true);
      */

      const draftCampaigns = await prisma.campaign.findMany({
        where: {projectId, status: CampaignStatus.DRAFT},
      });

      expect(draftCampaigns.every(c => c.status === CampaignStatus.DRAFT)).toBe(true);
    });
  });

  describe('PUT /campaigns/:id', () => {
    it('should update a draft campaign', async () => {
      const campaign = await factories.createCampaign({
        projectId,
        status: CampaignStatus.DRAFT,
        name: 'Original Name',
      });

      // When integrated:
      /*
      const response = await request(app)
        .put(`/campaigns/${campaign.id}`)
        .set('Authorization', `Bearer ${authToken}`)
        .send({ name: 'Updated Name' })
        .expect(200);

      expect(response.body.name).toBe('Updated Name');
      */

      const updated = await prisma.campaign.update({
        where: {id: campaign.id},
        data: {name: 'Updated Name'},
      });

      expect(updated.name).toBe('Updated Name');
    });

    it('should not update a completed campaign', async () => {
      const _campaign = await factories.createCampaign({
        projectId,
        status: CampaignStatus.COMPLETED,
      });

      // When integrated:
      /*
      await request(app)
        .put(`/campaigns/${_campaign.id}`)
        .set('Authorization', `Bearer ${_authToken}`)
        .send({ name: 'New Name' })
        .expect(400);
      */
    });
  });

  describe('DELETE /campaigns/:id', () => {
    it('should delete a draft campaign', async () => {
      const campaign = await factories.createCampaign({
        projectId,
        status: CampaignStatus.DRAFT,
      });

      // When integrated:
      /*
      await request(app)
        .delete(`/campaigns/${campaign.id}`)
        .set('Authorization', `Bearer ${authToken}`)
        .expect(204);

      const deleted = await prisma.campaign.findUnique({ where: { id: campaign.id } });
      expect(deleted).toBeNull();
      */

      await prisma.campaign.delete({where: {id: campaign.id}});

      const deleted = await prisma.campaign.findUnique({where: {id: campaign.id}});
      expect(deleted).toBeNull();
    });
  });
});