// ROUTES FOR OUR API
// =============================================================================
var express = require('express');
var router = express.Router();              // get an instance of the express Router
const querystring = require('querystring');
var mysql = require('./mysql');
const _mysqlLabor = ["127.0.0.1", "cuhkjc_query"]; //query數據庫信息 


//統壹處理區域
router.use(async function (req, res, next) {
    //权限设置 - 登陆 验证码
    await asynnext(req, res, next);
    //// make sure we go to the next routes and don't stop here
    //res.end("", _stime, _etime);
});

/**
 * @des 參數解釋同上
 */
function asynnext(req, res, next) {
    //異步處理
    return new Promise(async (resolve, reject) => {
        next();
        //resolve(true);
    });
}

//指定用户创建云端事件的行为
router.route('/event_create').post((req, res, next) => {
    var _arr = [req.body.userid, req.body.username, "cloudevent", req.body.eventname, req.body.eventcontent];
    postmysql(req, res, "cloud_event_create", _arr);
}).get((req, res, next) => {
    var _stime = req.query.starttime || "",
        _etime = req.query.endtime || "";
    getmysql(req, res, "cloud_event_create_get", req.query.username, "cloud_event_create", _stime, _etime);
});


//指定用户删除云端事件的行为
router.route('/event_del').post((req, res, next) => {
    var _arr = [req.body.userid, req.body.username, "cloudevent", req.body.eventname, req.body.eventcontent];
    postmysql(req, res, "cloud_event_del", _arr);
}).get((req, res, next) => {
    var _stime = req.query.starttime || "",
        _etime = req.query.endtime || "";
    getmysql(req, res, "cloud_event_del_get", req.query.username, "cloud_event_del", _stime, _etime);
});

//指定用户创建云端可视化面板的行为
router.route('/panel_create').post((req, res, next) => {
    var _arr = [req.body.userid, req.body.username, "cloudevent", req.body.eventname, req.body.eventcontent];
    postmysql(req, res, "cloud_panel_create", _arr);
}).get((req, res, next) => {
    var _stime = req.query.starttime || "",
        _etime = req.query.endtime || "";
    getmysql(req, res, "cloud_panel_create_get", req.query.username, "cloud_panel_create", _stime, _etime);
});


//指定用户删除云端可视化面板的行为
router.route('/panel_del').post((req, res, next) => {
    var _arr = [req.body.userid, req.body.username, "cloudevent", req.body.eventname, req.body.eventcontent];
    postmysql(req, res, "cloud_panel_del", _arr);
}).get((req, res, next) => {
    var _stime = req.query.starttime || "",
        _etime = req.query.endtime || "";
    getmysql(req, res, "cloud_panel_del_get", req.query.username, "cloud_panel_del", _stime, _etime);
});

queryString = function (url) {
    var a = url.split("?");
    var json = querystring.parse(a[1])
    return json;
}

//post存儲過程處理
postmysql = function (req, res, functionname, arr) {
    //mode的處理
    arr.unshift(_mysqlLabor[0], _mysqlLabor[1], functionname);
    //執行存儲過程
    mysql.usselect(arr, function (ret) { res.end(JSON.stringify(ret)); });
}

//get獲取數據庫信息
getmysql = function (req, res, functionname, ...p) {
    p = p || [];
    p.unshift(_mysqlLabor[0], _mysqlLabor[1], functionname);
    //執行存儲過程
    mysql.usselect(p, function (ret) {
        res.end(JSON.stringify(ret));
    });
}

module.exports = router;