var express = require('express');
const request = require('request');
const TARGET_URL = 'https://api.line.me/v2/bot/message/reply'
const TOKEN = 'OVIxKODBqM8Pn2dpFtFeSLsDbBvApfTu88rh8wFGOzfvgvPjmBH0A4XKii97VxIDO9shYyTix4qGq32vwvL895Rbss5VSVEiU/XG5lOdyTLgECkSQKOdObSetZwcVHbGmzZJ+0Cz5vZrB5KuImOwrwdB04t89/1O/w1cDnyilFU='
const fs = require('fs');
const path = require('path');
const HTTPS = require('https');
const domain = "2017103989.oss2021.tk"
const sslport = 23023;

const bodyParser = require('body-parser');
var app = express();
app.use(bodyParser.json());
app.post('/hook', function (req, res) {

    var eventObj = req.body.events[0];
    var source = eventObj.source;

    var message = eventObj.message;
    var pystring;

    const spawn = require("child_process").spawn;
    const process = spawn("python", ["basic.py", eventObj.message.text]);
    const Callback = (data) => {
        console.log("Data :", data.toString());
        pystring = data.toString();
        // request log
        console.log('======================', new Date() ,'======================');
        console.log('[request]', req.body);
        console.log('[request source] ', eventObj.source);
        console.log('[request message]', eventObj.message);

        request.post(
            {
                url: TARGET_URL,
                headers: {
                    'Authorization': `Bearer ${TOKEN}`
                },
                json: {
                    "replyToken":eventObj.replyToken,
                    "messages":[
                        {
                            "type":"text",
                            "text":pystring
                        },
                        {
                            "type":"text",
                            "text":"May I help you?"
                        }
                    ]
                }
            },(error, response, body) => {
                console.log(body)
            });
        

        res.sendStatus(200);

    };
    process.stdout.on("data", Callback);


    
});

try {
    const option = {
      ca: fs.readFileSync('/etc/letsencrypt/live/' + domain +'/fullchain.pem'),
      key: fs.readFileSync(path.resolve(process.cwd(), '/etc/letsencrypt/live/' + domain +'/privkey.pem'), 'utf8').toString(),
      cert: fs.readFileSync(path.resolve(process.cwd(), '/etc/letsencrypt/live/' + domain +'/cert.pem'), 'utf8').toString(),
    };
  
    HTTPS.createServer(option, app).listen(sslport, () => {
      console.log(`[HTTPS] Server is started on port ${sslport}`);
    });
  } catch (error) {
    console.log('[HTTPS] HTTPS 오류가 발생하였습니다. HTTPS 서버는 실행되지 않습니다.');
    console.log(error);
  }