import axios from 'axios';
import { clearUserStorage } from '../utils/storage';

export const API_BASE_URL = import.meta.env.DEV ? '/api/v1/' : 'https://www.tianchaoai.cc/api/v1/';
const APP_BASE = (import.meta.env.BASE_URL || '/').replace(/\/$/, '');
export const withAppBase = (path: string) => `${APP_BASE}${path.startsWith('/') ? path : `/${path}`}`;
export const withApiBase = (path: string) => `${API_BASE_URL}${path.replace(/^\//, '')}`;

export const api = axios.create({
  baseURL: API_BASE_URL,
  timeout: 90000,
  withCredentials: true
});

// 请求拦截器
api.interceptors.request.use((config) => {
  const token = localStorage.getItem('aura-token');
  if (token) {
    config.headers.Authorization = `Bearer ${token}`;
  }
  return config;
});

api.interceptors.response.use(
  (r) => r,
  (err) => {
    const isLoginPage = location.pathname === '/login' || location.pathname === withAppBase('/login');
    const isAuthPath = err.config?.url?.includes('/auth/login') || err.config?.url?.includes('/auth/register');

    if (err?.response?.status === 401 && !isLoginPage && !isAuthPath) {
      clearUserStorage();
      
      let nextPath = location.pathname;
      let nextSearch = location.search;

      // 如果是聊天页面，只进入 /chat 列表页，不进入具体的智能体或会话，防止切换账号后的权限冲突
      if (nextPath.includes('/chat')) {
        nextPath = '/chat';
        nextSearch = '';
      }

      const next = encodeURIComponent(nextPath + nextSearch);
      location.href = `${withAppBase('/login')}?next=${next}`;
    }
    return Promise.reject(err);
  }
);