import configs from '../configs';
import axios from 'axios'
import {
    bus
} from '../bus.js'

// axios.defaults.withCredentials = true;
// axios.defaults.headers.common['Authorization'] = AUTH_TOKEN;
// axios.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded;charset=UTF-8';//配置请求头

// 添加一个请求拦截器
// axios.interceptors.request.use(function (config) {
//     console.log(config);
    
//     return config;
// }, function (error) {
//     // Do something with request error
//     return Promise.reject(error);
// });

// 添加一个响应拦截器
axios.interceptors.response.use(function (response) {
    if (response.data && response.data.errcode) {
        if (parseInt(response.data.errcode) === 40001) {
            //未登录
            bus.$emit('goto', '/login')
        }
    }

    return response;
}, function (error) {
    // Do something with response error
    return Promise.reject(error);
});

//基地址
let basePath = configs.baseURL;

/**
 * @param path {string} path
 * @param opts {Object} options
 * @return {?Object}
 *
 * @description
 * Normalizes the given path, returning a regular expression
 * and the original path.
 *
 * Inspired by pathRexp in visionmedia/express/lib/utils.js.
 */
const pathReplace = function (path, opts) {
    const ret = {
        originalPath: path,
        patternPath: path
    }

    path = path
        .replace(/([().])/g, '\\$1')
        .replace(/(\/)?:(\w+)(\*\?|[?*])?/g, function (_, slash, key, option) {
            const optional = (option === '?' || option === '*?') ? '?' : null;
            const star = (option === '*' || option === '*?') ? '*' : null;
            slash = slash || '';
            opts[key] = typeof opts[key] === 'number' ? opts[key].toString() : opts[key];
            return '' +
                (optional ? '' : slash) +
                (opts[key] != '' ?
                    opts[key] : '${' + key + '}') +
                (optional || '');
        })

    ret.patternPath = path;
    return ret;
}

// 处理http请求
const config = function (config, params) {

    //提取接口url路径
    const url = basePath + pathReplace(config.url, params || {}).patternPath;

    return {
        // 发送请求
        request: function (obj) {
            // 全部接口带token
            obj = obj || {}
            obj.params = obj.params || {}
            // obj.params.token = localStorage.getItem('user_key')
            
            //整合请求配置
            let newConfig = Object.assign({}, obj || {}, config, {
                url: url,
            });
//          console.log(newConfig)
            // newConfig.headers.Authorization=params.token
            //执行http接口请求
            return axios(newConfig).then(successCallback, errorCallback);
        }
    }
}

// 请求成功回调
const successCallback = (result) => {
    // -402用户认证失败，请重新登录 -101没有操作权限
    if (result.data.error_code === -402) {
        sessionStorage.clear()
        localStorage.removeItem('user_key')
        //未登录
        bus.$emit('goto', '/login')
    }

    return result.data
}

// 请求失败回调
const errorCallback = (result) => {
    return result.data
}

export default {
    config: config
}