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

let instance = axios.create();
// 添加一个请求拦截器
instance.interceptors.request.use(
    config => {
        let token = sessionStorage.getItem("token") || "";
        if (token) {
            config.headers.encodeToken = token;
        }
        // config.headers.encodeToken =
        //     "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJleHAiOjE1NzEyMjQ3Mjc1OTcsInBheWxvYWQiOiJcIjE4MDYwMTE0MDkyODM4NDEwMXwxNTM5Njg4NzI3NTc5XCIifQ.sJBefUfJwybtWTNauW3j-w8VA6BlV56ASKmgQvDJc_Y";
        console.log(config);
        return config;
    },
    err => {
        return Promise.reject(err);
    }
);
// 添加一个响应拦截器
instance.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 instance(newConfig).then(successCallback, errorCallback);
        }
    };
};

// 请求成功回调
const successCallback = result => {
    // if (result.data.code === 666) {
    //     sessionStorage.removeItem("token");
    // }
    // -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
};