import axios from 'axios';

// Create axios instance with base configuration
// FORCE REBUILD: Fixed double /api issue by using environment variable
const api = axios.create({
  baseURL: process.env.REACT_APP_API_URL || 'https://linguabot-transcreation-backend.hf.space/api',
  headers: {
    'Content-Type': 'application/json',
  },
  timeout: 10000, // 10 second timeout
});

// Debug: Log the API URL being used
console.log('🔧 API CONFIGURATION DEBUG - FIXED DOUBLE /API ISSUE:');
console.log('API Base URL:', process.env.REACT_APP_API_URL || 'https://linguabot-transcreation-backend.hf.space/api');
console.log('Environment variables:', {
  REACT_APP_API_URL: process.env.REACT_APP_API_URL,
  NODE_ENV: process.env.NODE_ENV
});
console.log('Build timestamp:', new Date().toISOString()); // Force rebuild - Fixed double /api issue

// Request interceptor to add auth token and user role
api.interceptors.request.use(
  (config) => {
    const token = localStorage.getItem('token');
    if (token) {
      config.headers.Authorization = `Bearer ${token}`;
    }
    
    // Add user role to headers
    const user = localStorage.getItem('user');
    if (user) {
      try {
        const userData = JSON.parse(user);
        config.headers['user-role'] = userData.role || 'visitor';
      } catch (error) {
        config.headers['user-role'] = 'visitor';
      }
    }
    
    // Debug: Log the actual request URL
    console.log('🚀 Making API request to:', (config.baseURL || '') + (config.url || ''));
    console.log('🔑 Auth token:', token ? 'Present' : 'Missing');
    
    return config;
  },
  (error) => {
    return Promise.reject(error);
  }
);

// Response interceptor to handle errors
api.interceptors.response.use(
  (response) => {
    console.log('✅ API response received:', response.config.url);
    return response;
  },
  (error) => {
    console.error('❌ API request failed:', error.config?.url, error.message);
    if (error.response?.status === 401) {
      // Token expired or invalid
      localStorage.removeItem('token');
      localStorage.removeItem('user');
      window.location.href = '/login';
    } else if (error.response?.status === 429) {
      // Rate limit exceeded - retry after delay
      console.warn('Rate limit exceeded, retrying after delay...');
      return new Promise(resolve => {
        setTimeout(() => {
          resolve(api.request(error.config));
        }, 2000); // Wait 2 seconds before retry
      });
    } else if (error.response?.status === 500) {
      console.error('Server error:', error.response.data);
    } else if (error.code === 'ECONNABORTED') {
      console.error('Request timeout');
    }
    return Promise.reject(error);
  }
);

export { api };