import axios from 'axios';

const API_URL = import.meta.env.VITE_API_URL || 'http://localhost:5000/api';

const api = axios.create({
  baseURL: API_URL,
  headers: {
    'Content-Type': 'application/json',
  },
});

// Add auth token to requests
api.interceptors.request.use((config) => {
  const token = localStorage.getItem('accessToken');
  if (token) {
    config.headers.Authorization = `Bearer ${token}`;
  }
  return config;
});

// Handle token refresh on 401
api.interceptors.response.use(
  (response) => response,
  async (error) => {
    if (error.response?.status === 401) {
      // Token expired - could implement refresh token logic here
      localStorage.removeItem('accessToken');
      localStorage.removeItem('refreshToken');
      window.location.href = '/login';
    }
    return Promise.reject(error);
  }
);

export default api;