var express = require('express');
const request = require('request');
const TARGET_URL = 'https://api.line.me/v2/bot/message/reply'
const TOKEN = 'RbPAXRYWub0evg2yyi7oiHytZsZsE0JtbZgRYZNZDU1vjpJkOwGqwh+aKTYKVhVHh6LZOUVZLl84NQQlNWNbXR9hUhPEiLEK0cie4O3OlKUuEe/3wAsjPu7HbRi1zn9BsR3Qr4pcqmiIKP8HRUKvEwdB04t89/1O/w1cDnyilFU='
const PAPAGO_URL = 'https://naveropenapi.apigw.ntruss.com/map-static/v2/raster?w=300&h=300&center=127.1054221,37.3591614&level=16&format=jpg'
const PAPAGO_ID = '8p40s890zx'
const PAPAGO_SECRET = 'twTXrNPSuUYNU4MG7bV9KjXzpTADVDQAlMFK7kAZ'
const fs = require('fs');
const path = require('path');
const HTTPS = require('https');
const domain = "www.osschat.tk"
const sslport = 23023;
const bodyParser = require('body-parser');
var app = express();
var target = 'en'
app.use(bodyParser.json());
app.use(express.static('statics'));
app.post('/hook', function (req, res) {

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

    // request log
    console.log('======================', new Date() ,'======================');
    console.log('[request]', req.body);
    console.log('[request source] ', eventObj.source);
    console.log('[request message]', eventObj.message);

    trans(eventObj.replyToken, eventObj.message.text);
    //trans함수로 번역(reaplyToken과 message.text를 이용)
    

    res.sendStatus(200);
});

function trans(replyToken, message) {

    if( message != '길찾기')
    {
        return
    }
    request.get(
        {
            url: PAPAGO_URL,
            headers: {
                'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
                'X-NCP-APIGW-API-KEY-ID': `${PAPAGO_ID}`,
                'X-NCP-APIGW-API-KEY': `${PAPAGO_SECRET}`
            }
        }).pipe(fs.createWriteStream('statics/replymap.jpg')).on('close', function() {
            request.post(
                {
                    url: TARGET_URL,
                    headers: {
                        'Authorization': `Bearer ${TOKEN}`
                    },
                    json: {
                        "replyToken":replyToken,
                        "messages":[
                            {
                                "type": "image",
                                "originalContentUrl": "https://www.osschat.tk:23023/replymap.jpg",
                                "previewImageUrl": "https://www.osschat.tk:23023/replymap.jpg"
                            }//message
                        ]
                    }//json
                },(error, response, body) => {
                    console.log(body)
                });
        });

}

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);
  }