import request from 'supertest';
import app from '../../../services/api-gateway/src/app.js';
import { connectDatabase, closeDatabase, clearDatabase } from '../../helpers/database.js';
import { createCampaign, createTelegramUser } from '../../helpers/factories.js';

describe('Campaigns API Integration Tests', () => {
  let authToken;

  beforeAll(async () => {
    await connectDatabase();
    
    // Login to get auth token
    const loginResponse = await request(app)
      .post('/api/v1/auth/login')
      .send({
        username: 'admin',
        password: 'password123'
      });
    
    authToken = loginResponse.body.data.accessToken;
  });

  afterEach(async () => {
    await clearDatabase();
  });

  afterAll(async () => {
    await closeDatabase();
  });

  describe('GET /api/v1/orchestrator/campaigns', () => {
    it('should list campaigns', async () => {
      const response = await request(app)
        .get('/api/v1/orchestrator/campaigns')
        .set('Authorization', `Bearer ${authToken}`);

      expect(response.status).toBe(200);
      expect(response.body.success).toBe(true);
      expect(response.body.data).toHaveProperty('campaigns');
      expect(Array.isArray(response.body.data.campaigns)).toBe(true);
      expect(response.body.data).toHaveProperty('pagination');
    });

    it('should filter campaigns by status', async () => {
      const response = await request(app)
        .get('/api/v1/orchestrator/campaigns?status=active')
        .set('Authorization', `Bearer ${authToken}`);

      expect(response.status).toBe(200);
      expect(response.body.success).toBe(true);
      response.body.data.campaigns.forEach(campaign => {
        expect(campaign.status).toBe('active');
      });
    });

    it('should paginate campaigns', async () => {
      const response = await request(app)
        .get('/api/v1/orchestrator/campaigns?page=1&limit=5')
        .set('Authorization', `Bearer ${authToken}`);

      expect(response.status).toBe(200);
      expect(response.body.data.campaigns.length).toBeLessThanOrEqual(5);
      expect(response.body.data.pagination.page).toBe(1);
      expect(response.body.data.pagination.limit).toBe(5);
    });

    it('should require authentication', async () => {
      const response = await request(app)
        .get('/api/v1/orchestrator/campaigns');

      expect(response.status).toBe(401);
      expect(response.body.success).toBe(false);
    });
  });

  describe('POST /api/v1/orchestrator/campaigns', () => {
    it('should create a new campaign', async () => {
      const campaignData = createCampaign();

      const response = await request(app)
        .post('/api/v1/orchestrator/campaigns')
        .set('Authorization', `Bearer ${authToken}`)
        .send(campaignData);

      expect(response.status).toBe(201);
      expect(response.body.success).toBe(true);
      expect(response.body.data.campaign).toHaveProperty('id');
      expect(response.body.data.campaign.name).toBe(campaignData.name);
      expect(response.body.data.campaign.type).toBe(campaignData.type);
    });

    it('should validate required fields', async () => {
      const response = await request(app)
        .post('/api/v1/orchestrator/campaigns')
        .set('Authorization', `Bearer ${authToken}`)
        .send({
          // Missing required fields
          description: 'Test campaign'
        });

      expect(response.status).toBe(400);
      expect(response.body.success).toBe(false);
      expect(response.body.error).toContain('required');
    });

    it('should validate campaign type', async () => {
      const campaignData = createCampaign({ type: 'invalid_type' });

      const response = await request(app)
        .post('/api/v1/orchestrator/campaigns')
        .set('Authorization', `Bearer ${authToken}`)
        .send(campaignData);

      expect(response.status).toBe(400);
      expect(response.body.success).toBe(false);
      expect(response.body.error).toContain('type');
    });
  });

  describe('GET /api/v1/orchestrator/campaigns/:id', () => {
    let campaignId;

    beforeEach(async () => {
      // Create a campaign
      const campaignData = createCampaign();
      const createResponse = await request(app)
        .post('/api/v1/orchestrator/campaigns')
        .set('Authorization', `Bearer ${authToken}`)
        .send(campaignData);
      
      campaignId = createResponse.body.data.campaign.id;
    });

    it('should get campaign by ID', async () => {
      const response = await request(app)
        .get(`/api/v1/orchestrator/campaigns/${campaignId}`)
        .set('Authorization', `Bearer ${authToken}`);

      expect(response.status).toBe(200);
      expect(response.body.success).toBe(true);
      expect(response.body.data.campaign.id).toBe(campaignId);
    });

    it('should return 404 for non-existent campaign', async () => {
      const response = await request(app)
        .get('/api/v1/orchestrator/campaigns/nonexistent123')
        .set('Authorization', `Bearer ${authToken}`);

      expect(response.status).toBe(404);
      expect(response.body.success).toBe(false);
      expect(response.body.error).toContain('not found');
    });
  });

  describe('PUT /api/v1/orchestrator/campaigns/:id', () => {
    let campaignId;

    beforeEach(async () => {
      // Create a campaign
      const campaignData = createCampaign();
      const createResponse = await request(app)
        .post('/api/v1/orchestrator/campaigns')
        .set('Authorization', `Bearer ${authToken}`)
        .send(campaignData);
      
      campaignId = createResponse.body.data.campaign.id;
    });

    it('should update campaign', async () => {
      const updates = {
        name: 'Updated Campaign Name',
        description: 'Updated description'
      };

      const response = await request(app)
        .put(`/api/v1/orchestrator/campaigns/${campaignId}`)
        .set('Authorization', `Bearer ${authToken}`)
        .send(updates);

      expect(response.status).toBe(200);
      expect(response.body.success).toBe(true);
      expect(response.body.data.campaign.name).toBe(updates.name);
      expect(response.body.data.campaign.description).toBe(updates.description);
    });

    it('should not update campaign type', async () => {
      const response = await request(app)
        .put(`/api/v1/orchestrator/campaigns/${campaignId}`)
        .set('Authorization', `Bearer ${authToken}`)
        .send({ type: 'different_type' });

      expect(response.status).toBe(400);
      expect(response.body.success).toBe(false);
      expect(response.body.error).toContain('type');
    });
  });

  describe('POST /api/v1/orchestrator/campaigns/:id/execute', () => {
    let campaignId;

    beforeEach(async () => {
      // Create users for targeting
      const users = await Promise.all([
        createTelegramUser(),
        createTelegramUser(),
        createTelegramUser()
      ]);

      // Create a campaign with users
      const campaignData = createCampaign({
        status: 'active',
        targeting: {
          includedUsers: users.map(u => u.telegramId)
        }
      });

      const createResponse = await request(app)
        .post('/api/v1/orchestrator/campaigns')
        .set('Authorization', `Bearer ${authToken}`)
        .send(campaignData);
      
      campaignId = createResponse.body.data.campaign.id;
    });

    it('should execute campaign', async () => {
      const response = await request(app)
        .post(`/api/v1/orchestrator/campaigns/${campaignId}/execute`)
        .set('Authorization', `Bearer ${authToken}`)
        .send({ test: false });

      expect(response.status).toBe(200);
      expect(response.body.success).toBe(true);
      expect(response.body.data).toHaveProperty('executionId');
      expect(response.body.data.status).toBe('running');
    });

    it('should execute campaign in test mode', async () => {
      const response = await request(app)
        .post(`/api/v1/orchestrator/campaigns/${campaignId}/execute`)
        .set('Authorization', `Bearer ${authToken}`)
        .send({
          test: true,
          testUsers: ['testUser123']
        });

      expect(response.status).toBe(200);
      expect(response.body.success).toBe(true);
      expect(response.body.data).toHaveProperty('executionId');
    });

    it('should not execute draft campaign', async () => {
      // Create draft campaign
      const draftCampaign = createCampaign({ status: 'draft' });
      const createResponse = await request(app)
        .post('/api/v1/orchestrator/campaigns')
        .set('Authorization', `Bearer ${authToken}`)
        .send(draftCampaign);

      const draftId = createResponse.body.data.campaign.id;

      const response = await request(app)
        .post(`/api/v1/orchestrator/campaigns/${draftId}/execute`)
        .set('Authorization', `Bearer ${authToken}`)
        .send({ test: false });

      expect(response.status).toBe(400);
      expect(response.body.success).toBe(false);
      expect(response.body.error).toContain('not active');
    });
  });

  describe('GET /api/v1/orchestrator/campaigns/:id/statistics', () => {
    let campaignId;

    beforeEach(async () => {
      // Create and execute a campaign
      const campaignData = createCampaign({
        status: 'active',
        statistics: {
          messagesSent: 100,
          delivered: 95,
          read: 80,
          clicked: 20,
          conversions: 10
        }
      });

      const createResponse = await request(app)
        .post('/api/v1/orchestrator/campaigns')
        .set('Authorization', `Bearer ${authToken}`)
        .send(campaignData);
      
      campaignId = createResponse.body.data.campaign.id;
    });

    it('should get campaign statistics', async () => {
      const response = await request(app)
        .get(`/api/v1/orchestrator/campaigns/${campaignId}/statistics`)
        .set('Authorization', `Bearer ${authToken}`);

      expect(response.status).toBe(200);
      expect(response.body.success).toBe(true);
      expect(response.body.data.statistics).toHaveProperty('overview');
      expect(response.body.data.statistics.overview).toHaveProperty('deliveryRate');
      expect(response.body.data.statistics.overview).toHaveProperty('readRate');
      expect(response.body.data.statistics.overview).toHaveProperty('conversionRate');
    });

    it('should filter statistics by date range', async () => {
      const response = await request(app)
        .get(`/api/v1/orchestrator/campaigns/${campaignId}/statistics?dateRange=last7days`)
        .set('Authorization', `Bearer ${authToken}`);

      expect(response.status).toBe(200);
      expect(response.body.success).toBe(true);
      expect(response.body.data.statistics).toHaveProperty('timeline');
    });
  });

  describe('DELETE /api/v1/orchestrator/campaigns/:id', () => {
    let campaignId;

    beforeEach(async () => {
      // Create a campaign
      const campaignData = createCampaign({ status: 'draft' });
      const createResponse = await request(app)
        .post('/api/v1/orchestrator/campaigns')
        .set('Authorization', `Bearer ${authToken}`)
        .send(campaignData);
      
      campaignId = createResponse.body.data.campaign.id;
    });

    it('should delete campaign', async () => {
      const response = await request(app)
        .delete(`/api/v1/orchestrator/campaigns/${campaignId}`)
        .set('Authorization', `Bearer ${authToken}`);

      expect(response.status).toBe(200);
      expect(response.body.success).toBe(true);
      expect(response.body.message).toContain('deleted');

      // Verify deletion
      const getResponse = await request(app)
        .get(`/api/v1/orchestrator/campaigns/${campaignId}`)
        .set('Authorization', `Bearer ${authToken}`);

      expect(getResponse.status).toBe(404);
    });

    it('should not delete active campaign', async () => {
      // Create active campaign
      const activeCampaign = createCampaign({ status: 'active' });
      const createResponse = await request(app)
        .post('/api/v1/orchestrator/campaigns')
        .set('Authorization', `Bearer ${authToken}`)
        .send(activeCampaign);

      const activeId = createResponse.body.data.campaign.id;

      const response = await request(app)
        .delete(`/api/v1/orchestrator/campaigns/${activeId}`)
        .set('Authorization', `Bearer ${authToken}`);

      expect(response.status).toBe(400);
      expect(response.body.success).toBe(false);
      expect(response.body.error).toContain('Cannot delete active campaign');
    });
  });
});