'use strict';

const fs = require('fs');
const path = require('path');
let devHost = '127.0.0.1';
let devPort = '5006';

fs.readFile(path.join(__dirname, '../../.devhost'), (err, buf)=> {
    if (!err) {
        let devConfig = JSON.parse(buf.toString());

        devHost = devConfig.host || devHost;
        devPort = devConfig.port || devPort;
    } else if (!process.env.NODE_ENV) {
        console.error(err);
        console.warn(`
        推荐在项目主目录建一个 .devhost 文件，内容为
        {
            "host": "127.0.0.1"
        }
        `);
    }
});

module.exports = () => {
    return (req, res, next) => {
        Object.assign(res.locals, {
            devHost: devHost,
            devPort: devPort
        });

        next && next();
    };
};