const request = require('request');
const TARGET_URL = 'https://api.line.me/v2/bot/message/push'
const MULTI_TARGET_URL = 'https://api.line.me/v2/bot/message/multicast'
const BROAD_TARGET_URL = 'https://api.line.me/v2/bot/message/broadcast'
const TOKEN = 'ePTcnuOEn0TvohbtMRnbZRo0YqKVUOyjkkZ/jE6qh5VC5dajFgFBuWY+MAzdY8VKybwB34iz2AbFRtM0G9fL0+Xo4U+Lz7uBNpCo5m//COlWZdQsx1Ywmh61NopAomnNjWT41rNV1YyvI9aeX5CKxgdB04t89/1O/w1cDnyilFU='
const USER_ID = 'U2988a9f8583a616c1285db2224662211'

const TARGET_URL_reply = 'https://api.line.me/v2/bot/message/reply'
const fs = require('fs');
const path = require('path');
const HTTPS = require('https');
const domain = "2018102193.oss2021.tk"
const sslport = 23023;
const bodyParser = require('body-parser');

const express = require('express');
const app = express();
const fetch = require('node-fetch');
const fs_apikey = require('fs');
const api_key = fs_apikey.readFileSync('apikey', 'ascii')
var cursor = ''
url2 = 'https://api.whale-alert.io/v1/transactions?api_key=' + api_key + '&cursor=' + cursor;
const options = {method: 'GET', headers: {Accept: 'application/json'}};

const KR_TIME_DIFF = 9 * 60 * 60 * 1000;
var TimeNow = parseInt((new Date()).getTime() / 1000)
var uts2time = new Date()

var PushTimeId;
console.log(TimeNow)

app.use(bodyParser.json());
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] ', source);
    console.log('[request message]', message);
    // if(message.text === '김프'){
    //     command = '김프';
    // }
    // else if (message.text === '거래량비율')
    //   volumePumpingRatioThreeMinutePerWeek(eventObj.replyToken, message.text);
    // else{
    //     if(command === '김프'){
    //         kimp(eventObj.replyToken, message.text);
    //     }
    // }
    // 
    if(message.text == '고래알람'){
        PushTimeId = SetWhaleAlert()
    }
    else if(message.text == '고래알람해제'){
        clearTimeout(PushTimeId)
    }
    res.sendStatus(200);
});






function chk_param(data, query_limit, callback){
    //query_limit (non_int) => return 0;
    //query_limit (int) => return query_limit;
    query_limit = parseInt(query_limit)
    if(isNaN(query_limit)){ return callback(data, 0)} 
    else {return callback(data, query_limit)}
}
function data_collector(data, limit){
    var ret = new Array();
    var str = '';

    //ret += '# of Transactions : ' + data.count + '\n'
    for(var i = 0; i < data.count; i++){
        uts2time.setTime(data.transactions[i].timestamp * 1000 + KR_TIME_DIFF)
        str = /*'#' + (i+1)+*/'Time: ' + uts2time.toLocaleString() + '\nChainName: '+data.transactions[i].blockchain+'\nAmount: '+data.transactions[i].amount+' USD'
        if(data.transactions[i].amount > limit){
            //console.log(str)
           // ret += '\n\n' + str;
           o ={ 'type' : 'text',
                'text' : str}
           ret.push(o)
        }
        else{
            //console.log(str)
        }
    }
    return ret;
}
function SetWhaleAlert(){
    fetch(url2, options)
    .then(res => res.json())
    .then(json => {
            console.log(json)
            fetch(url2+json.cursor, options)
            .then(res => res.json())
            .then(json => {
                console.log(json)
                fetch(url2+json.cursor, options)
                .then(res => res.json())
                .then(json => {
                    console.log(json)
                    if(json.cursor != undefined){
                        cursor = json.cursor
                    }
                })
                .catch((err) => {
                    console.log('error : inital_fetch:'+err)
                })
            })
            .catch((err) => {
                console.log('error : inital_fetch:'+err)
            })
        })
    .catch((err) => {
        console.log('error : inital_fetch:'+err)
    })
    return setInterval(() => {
        fetch(url2+cursor, options)
        .then(res => res.json())
        .then(json => {
                //API usage limit
            console.log(json)
            if(json.result == 'error'){
            }
            else{
                cursor = json.cursor
                var msg2user = chk_param(json,5000000, data_collector)
                console.log('msg',msg2user)
                if(msg2user.length){
                    var i = 0;
                    for(i; i < msg2user.length; i++){
                        request.post(
                            {
                                url: TARGET_URL,
                                headers: {
                                    'Authorization': `Bearer ${TOKEN}`
                                },
                                json: {
                                    "to": `${USER_ID}`,
                                    "messages":[msg2user[i]]
                                }
                            },(error, response, body) => {
                                console.log(body, error)
                            });
                        }
                    }
            }
        })
        .catch(err => {
            console.error('error: var:fu:' + err)
        })
    }, 5000);
}
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);
  }