'use strict';

const config = require('./config.json');
const modem = require('./modem');
const common = require('./common');

let count = 1;

exports.sendUssd = async function sendUssd (req, res){
    let msg = req.query.msg;
    let reqid = req.query.reqid;
    let apiKey = req.query.apikey;
    //apiKey="746573206D6F64656D2074656C6D6F73656C20666C617368";
    if(!reqid||!apiKey){
        common.log("invalid reqid or apikey;msg "+msg);
        res.json({"status": "invalid parameter", "msg": msg, "apikey" : apikey, "reqid": reqid});
        return;
    } else if (apiKey !== config.core.api_key){
        common.log("invalid apiKey;msg \""+msg+"\"reqid \""+reqid);
        res.json({"status": "invalid parameter", "msg": msg, "apikey" : apikey, "reqid": reqid});
        return;
    }
    common.log("msg "+ msg+" - "+reqid);

    count++;
    common.log("count "+ count);
    if (count > 2){
        common.log("modem busy!");
        count--;
        res.json({status: "reject", info: "modem busy,try a few second", msg: msg});
        return;
    }	

    //----------------
    let newData = await modem.sendingUSSD(msg, count);
        common.log("data diterima "+newData);
        count--;
        res.json({data : newData, code: "200"});

}