'use strict';

const apiURL = 'https://min-api.cryptocompare.com/data/price?fsym=ETH&tsyms=BTC,USD,GBP,ETH';

module.exports.definition = { BTC: 0.1387, USD: 378.43, GBP: 302, ETH: 1 };

module.exports.run = ( mock = false ) => {
  const time = new Date();
  this.runCryptoCurrencyChecker(mock, time);
  console.log(`CryptoTracker ran at ${time}`);
};

module.exports.runCryptoCurrencyChecker = ( mock, time ) => {
  let request = require('request');
  return new Promise(( resolve, reject ) => {
    request(apiURL, ( err, res, body ) => {
      if (err) {
        reject(err);
        return;
      }
      let data = JSON.parse(body);
      console.log(data);
      if (!mock) this.sendToSlack(data, time);
      resolve(data);
    });
  });
};

module.exports.sendToSlack = ( data, time ) => {
  let request = require('request');
  let msg = `1 ETH = ${data.BTC} BTC, or £${data.GBP} / $${data.USD} at ${time}`;
  const options = {
    method: 'post',
    body: {
      "fallback": msg,
      "channel": "#ether",
      "username": "cryptoCurrencyBot",
      "text": msg,
      "icon_emoji": ":moneybag:"
    },
    json: true,
    url: 'https://hooks.slack.com/services/<YOUR-WEBHOOK-URL>'
  };
  request(options, function( err, resp, body ) {
    if (resp && !err) console.log('Posted to Slack.');
  });
};