import axios from 'axios';
import Cookies from 'js-cookie';

const API_BASE = process.env.NEXT_PUBLIC_API_URL || 'http://localhost:8000';

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

api.interceptors.request.use((config) => {
  const token = Cookies.get('access_token');
  if (token) {
    config.headers.Authorization = `Bearer ${token}`;
  }
  return config;
});

api.interceptors.response.use(
  (response) => response,
  async (error) => {
    const originalRequest = error.config;

    if (error.response?.status === 401 && !originalRequest._retry) {
      originalRequest._retry = true;
      const refreshToken = Cookies.get('refresh_token');

      if (refreshToken) {
        try {
          const { data } = await axios.post(`${API_BASE}/api/auth/token/refresh/`, {
            refresh: refreshToken,
          });
          Cookies.set('access_token', data.access, { expires: 1 });
          originalRequest.headers.Authorization = `Bearer ${data.access}`;
          return api(originalRequest);
        } catch {
          Cookies.remove('access_token');
          Cookies.remove('refresh_token');
          window.location.href = '/login';
        }
      } else {
        window.location.href = '/login';
      }
    }
    return Promise.reject(error);
  }
);

export default api;

export const publicApi = axios.create({
  baseURL: `${API_BASE}/api`,
  headers: { 'Content-Type': 'application/json' },
});