/**
 * page cache 前端js跳转url中间件
 */
'use strict';

const _ = require('lodash');

const ptm = {
    // 首页
    '/': '',
    '/woman': '/girls',
    '/kids': '/kids',
    '/lifestyle': '/lifestyle',

    // 登录注册
    '/signin.html': '/signin.htm',
    '/reg.html': '/passport/reg/index',
    '/passport/back/index': '/passport/back/mobile',

    // 列表
    '/product/list/new': '/product/new',

    // 品牌列表
    '/brands': '/brands',

    // 领券中心
    '/coupon/index': '/coupon/floor?title=领券中心&code=b78b32ed81b18dde8ac84fd33602b88b'

};

module.exports = () => {
    return (req, res, next) => {
        let domain = 'm.yohobuy.com';
        let proRegNew = /^\/product\/([\d]+).html(.*)/;

        if (!req.xhr) {
            let url = _.head(_.split(req.url, '?'));
            let data = {};

            if (ptm.hasOwnProperty(url)) {
                data.mobileRefer = `//${domain}${ptm[url]}`;
            } else if (url === '/product/list/index') {
                data.mobileRefer = `//list.${domain}`;
            } else if (url === '/product/index/brand') {
                data.mobileRefer = `//${req.query.domain}.${domain}`;
            } else if (url === '/product/search/index') {
                data.mobileRefer = `//search.${domain}`;
            } else if (proRegNew.test(url)) {
                data.mobileRefer = url.replace(proRegNew, `//${domain}/product/$1.html$2`);
            }

            Object.assign(res.locals, data);
        }
        next();
    };
};