const request = require('supertest');
const app = require('../../app');
const { createTestUser } = require('../helpers/testUtils');

describe('URL Routes', () => {
  let user, agent;

  beforeEach(async () => {
    user = await createTestUser({
      email: 'test@example.com'
    });

    // Create authenticated agent
    agent = request.agent(app);
    await agent
      .post('/api/login')
      .send({
        email: 'test@example.com',
        password: 'password123'
      });
  });

  describe('GET /api/url/title', () => {
    it('should require authentication', async () => {
      const response = await request(app)
        .get('/api/url/title')
        .query({ url: 'https://example.com' });

      expect(response.status).toBe(401);
      expect(response.body.error).toBe('Authentication required');
    });

    it('should require url parameter', async () => {
      const response = await agent
        .get('/api/url/title');

      expect(response.status).toBe(400);
      expect(response.body.error).toBe('URL parameter is required');
    });

    it('should return title for valid URL', async () => {
      const response = await agent
        .get('/api/url/title')
        .query({ url: 'https://httpbin.org/html' });

      expect(response.status).toBe(200);
      expect(response.body).toHaveProperty('url');
      expect(response.body).toHaveProperty('title');
      expect(response.body.url).toBe('https://httpbin.org/html');
      // Title could be extracted or null depending on network conditions
      expect(typeof response.body.title === 'string' || response.body.title === null).toBe(true);
    }, 10000);

    it('should handle URL without protocol', async () => {
      const response = await agent
        .get('/api/url/title')
        .query({ url: 'httpbin.org/html' });

      expect(response.status).toBe(200);
      expect(response.body).toHaveProperty('url');
      expect(response.body).toHaveProperty('title');
      expect(response.body.url).toBe('httpbin.org/html');
      // Title could be extracted or null depending on network conditions
      expect(typeof response.body.title === 'string' || response.body.title === null).toBe(true);
    }, 10000);

    it('should handle invalid URL gracefully', async () => {
      const response = await agent
        .get('/api/url/title')
        .query({ url: 'not-a-valid-url' });

      expect(response.status).toBe(200);
      expect(response.body).toHaveProperty('url');
      expect(response.body).toHaveProperty('title');
      expect(response.body.url).toBe('not-a-valid-url');
      // Title could be null or error message
      expect(response.body.title === null || typeof response.body.title === 'string').toBe(true);
    });

    it('should handle unreachable URL', async () => {
      const response = await agent
        .get('/api/url/title')
        .query({ url: 'https://nonexistent-domain-12345.com' });

      expect(response.status).toBe(200);
      expect(response.body).toHaveProperty('url');
      expect(response.body).toHaveProperty('title');
      expect(response.body.url).toBe('https://nonexistent-domain-12345.com');
      expect(response.body.title).toBe(null);
    });
  });

  describe('POST /api/url/extract-from-text', () => {
    it('should require authentication', async () => {
      const response = await request(app)
        .post('/api/url/extract-from-text')
        .send({ text: 'Check out https://example.com' });

      expect(response.status).toBe(401);
      expect(response.body.error).toBe('Authentication required');
    });

    it('should require text parameter', async () => {
      const response = await agent
        .post('/api/url/extract-from-text')
        .send({});

      expect(response.status).toBe(400);
      expect(response.body.error).toBe('Text parameter is required');
    });

    it('should extract URL from text and get title', async () => {
      const testText = 'Check out this interesting site: https://httpbin.org/html';
      const response = await agent
        .post('/api/url/extract-from-text')
        .send({ text: testText });

      expect(response.status).toBe(200);
      expect(response.body.found).toBe(true);
      expect(response.body.url).toBe('https://httpbin.org/html');
      expect(response.body.originalText).toBe(testText);
      expect(response.body).toHaveProperty('title');
      // Title could be extracted or null depending on network conditions
      expect(typeof response.body.title === 'string' || response.body.title === null).toBe(true);
    }, 10000);

    it('should extract first URL when multiple URLs in text', async () => {
      const testText = 'Check out https://httpbin.org/html and also https://example.com';
      const response = await agent
        .post('/api/url/extract-from-text')
        .send({ text: testText });

      expect(response.status).toBe(200);
      expect(response.body.found).toBe(true);
      expect(response.body.url).toBe('https://httpbin.org/html');
      expect(response.body.originalText).toBe(testText);
      expect(response.body).toHaveProperty('title');
    }, 10000);

    it('should detect URLs without protocol', async () => {
      const testText = 'Visit httpbin.org/html for testing';
      const response = await agent
        .post('/api/url/extract-from-text')
        .send({ text: testText });

      expect(response.status).toBe(200);
      expect(response.body.found).toBe(true);
      expect(response.body.url).toBe('httpbin.org/html');
      expect(response.body.originalText).toBe(testText);
    });

    it('should return found false when no URL in text', async () => {
      const testText = 'This text has no URLs in it at all';
      const response = await agent
        .post('/api/url/extract-from-text')
        .send({ text: testText });

      expect(response.status).toBe(200);
      expect(response.body.found).toBe(false);
    });

    it('should handle empty text', async () => {
      const response = await agent
        .post('/api/url/extract-from-text')
        .send({ text: '' });

      expect(response.status).toBe(400);
      expect(response.body.error).toBe('Text parameter is required');
    });

    it('should handle text with only whitespace', async () => {
      const response = await agent
        .post('/api/url/extract-from-text')
        .send({ text: '   \n\t  ' });

      expect(response.status).toBe(200);
      expect(response.body.found).toBe(false);
    });
  });
});