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/**
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* Created by rocketman1337345 on 8/14/16.
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* Extended by RJPGriffin (Gryphon) on 30/5/18
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*/
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/**
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Required Config:
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config.pushbullet = {
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// sends pushbullets if true
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enabled: true,
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// Send 'Gekko starting' message if true
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sendMessageOnStart: true,
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// Send Message for advice? Recommend Flase for paper, true for live
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sendOnAdvice: true,
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// Send Message on Trade Completion?
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sendOnTrade: true,
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// For Overall P/L calc. Pass in old balance if desired, else leave '0'
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startingBalance: '0',
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// your pushbullet API key
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key: '',
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// your email
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email: '[email protected]',
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// Messages will start with this tag
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tag: '[GEKKO]'
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};
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**/
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var pushbullet = require("pushbullet");
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var _ = require('lodash');
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const moment = require('moment');
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const request = require('request');
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var log = require('../core/log.js');
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var util = require('../core/util.js');
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var config = util.getConfig();
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var pbConf = config.pushbullet;
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var Pushbullet = function(done) {
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_.bindAll(this);
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this.pusher;
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this.price = 'N/A';
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this.startingBalance = pbConf.startingBalance === undefined ? 0 : Number(pbConf.startingBalance);
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this.advicePrice = 0;
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this.adviceTime = moment();
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this.lastBuyTime = moment();
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this.lastBuyBalance = 0;
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this.hasBought = 0;
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this.done = done;
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this.setup();
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};
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Pushbullet.prototype.setup = function(done) {
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var setupPushBullet = function(err, result) {
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if (pbConf.sendMessageOnStart) {
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var title = pbConf.tag;
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var exchange = config.watch.exchange;
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var currency = config.watch.currency;
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var asset = config.watch.asset;
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let tradeType = 'watching';
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if (config.trader.enabled) {
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tradeType = "Live Trading";
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}
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if (config.paperTrader.enabled) {
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tradeType = "Paper Trading";
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}
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var body = `Gekko has started ${tradeType} ${asset}/${currency} on ${exchange}.`;
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//If trading Advisor is enabled, add strategy and candle size information
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if (config.tradingAdvisor.enabled) {
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body += `\n\nUsing ${config.tradingAdvisor.method} strategy on M${config.tradingAdvisor.candleSize} candles.`
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}
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this.mail(title, body);
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} else {
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log.debug('Skipping Send message on startup')
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}
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};
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setupPushBullet.call(this)
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};
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Pushbullet.prototype.processCandle = function(candle, done) {
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this.price = candle.close;
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done();
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};
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Pushbullet.prototype.processAdvice = function(advice) {
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this.advicePrice = this.price;
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this.adviceTime = advice.date;
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if (pbConf.sendOnAdvice) {
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var text = [
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'Gekko has new advice for ',
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capF(config.watch.exchange),
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', advice is to go ',
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capF(advice.recommendation),
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'.\n\nThe current ',
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config.watch.asset,
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' price is ',
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this.advicePrice
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].join('');
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var subject = pbConf.tag + ' New advice: go ' + advice.recommendation;
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this.mail(subject, text);
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}
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};
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Pushbullet.prototype.processTradeCompleted = function(trade) {
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//Check Starting balance is initialized - if 0, initialize it
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this.startingBalance = this.startingBalance ? this.startingBalance : trade.balance;
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// If config variable doesn't exist (old config) defaults to send
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let sendOnTrade = pbConf.sendOnTrade === undefined ? 1 : pbConf.sendOnTrade;
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if (sendOnTrade) {
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// Calculate exposure Time
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let exposureTimeStr = '';
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let balanceChangeStr = '\n';
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let totBalanceChangeStr = '';
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let subject = `${pbConf.tag} ${capF(trade.action)} complete`;
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if (trade.action === 'buy') {
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this.hasBought = 1; // Flag to ensure that the following variables have been filled
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this.lastBuyTime = trade.date;
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this.lastBuyBalance = trade.balance;
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} else if (this.hasBought) { //if sell and we have previous buy data
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exposureTimeStr = `\nExposure Time: ${moment.duration(trade.date.diff(this.lastBuyTime)).humanize()}`;
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//Calculate balance change
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let oBal = this.lastBuyBalance; // Old Balance
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let nBal = trade.balance; // New Balance
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let diffBal = Math.abs(nBal - oBal); // Balance Difference
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let percDiffBal = (diffBal / oBal) * 100; // Percentage difference
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if (nBal >= oBal) { // profit!
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balanceChangeStr = `\n\nRound trip profit of: \n${getNumStr(diffBal)}${config.watch.currency} \n${getNumStr(percDiffBal,2)}%\n`
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subject = `${subject}: +${getNumStr(percDiffBal,2)}%`
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} else if (nBal < oBal) { // Loss :(
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balanceChangeStr = `\n\nRound trip loss of: \n-${getNumStr(diffBal)}${config.watch.currency} \n-${getNumStr(percDiffBal,2)}%\n`
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subject = `${subject}: -${getNumStr(percDiffBal,2)}%`
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}
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//Calculate overall P/l
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let sBal = this.startingBalance;
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let tDiffBal = Math.abs(nBal - sBal);
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let percDiffTotBal = (tDiffBal / sBal) * 100;
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if (nBal >= sBal) { // profit!
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totBalanceChangeStr = `\nOverall gain of: \n${getNumStr(tDiffBal)}${config.watch.currency} \n${getNumStr(percDiffTotBal,2)}%\n`
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} else if (nBal < sBal) { // Loss :(
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totBalanceChangeStr = `\nOverall loss of \n-${getNumStr(tDiffBal)}${config.watch.currency} \n-${getNumStr(percDiffTotBal,2)}%\n`
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} else if (trade.action === 'sell' && !this.hasBought) {
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balanceChangeStr = `\n\nNot enough data for exposure time, round trip or overall performance yet. This will appear after bot has completed first round trip.`
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}
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}
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let costOfTradeStr = `\nCost of Trade: ${getNumStr(trade.cost)}${config.watch.currency}, ${getNumStr(((trade.cost / (trade.amount*trade.price)) * 100), 2)}%`;
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//build strings that are only sent for Live trading, not paperTrader
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let orderFillTimeStr = '';
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let slippageStr = '';
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if (!config.paperTrader.enabled) {
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let timeToComplete = moment.duration(trade.date.diff(this.adviceTime)).humanize();
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orderFillTimeStr = `\nOrder fill Time: ${timeToComplete}`;
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var slip;
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//Slip direction is opposite for buy and sell
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if (trade.price === this.advicePrice) {
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slip = 0;
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} else if (trade.action === 'buy') {
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slip = 100 * ((trade.price - this.advicePrice) / this.advicePrice);
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} else if (trade.action === 'sell') {
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slip = 100 * ((this.advicePrice - trade.price) / this.advicePrice);
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}
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slippageStr = `\nSlipped ${getNumStr(slip,2)}% from advice @ ${getNumStr(this.advicePrice)}`;
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}
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var text = [
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capF(config.watch.exchange), ' ', config.watch.asset, '/', config.watch.currency,
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`\n\n${config.watch.asset} Trade Price: ${getNumStr(trade.price)}`,
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`\n${getPastTense(trade.action)} ${getNumStr(trade.amount)} ${config.watch.asset}`,
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orderFillTimeStr,
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slippageStr,
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costOfTradeStr,
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exposureTimeStr,
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balanceChangeStr,
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totBalanceChangeStr,
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'\nBalance: ', getNumStr(trade.balance), config.watch.currency,
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].join('');
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this.mail(subject, text);
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}
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};
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// A long winded function to make sure numbers aren't displayed with too many decimal places
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// and are a little humanized
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function getNumStr(num, fixed = 4) {
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let numStr = '';
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if (typeof num != "number") {
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num = Number(num);
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if (isNaN(num)) {
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// console.log("Pushbullet Plugin: Number Conversion Failed");
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return "Conversion Failure";
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}
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}
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if (Number.isInteger(num)) {
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numStr = num.toString();
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} else {
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//Create modNum Max - Must be a better way...
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let modNumMax = '1';
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for (let i = 1; i < fixed; i++) {
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modNumMax = modNumMax + '0';
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}
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modNumMax = Number(modNumMax);
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let i = 0;
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if (num < 1) {
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let modNum = num - Math.floor(num);
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while (modNum < modNumMax && i < 8) {
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modNum *= 10;
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i += 1;
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}
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} else {
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i = fixed;
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}
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numStr = num.toFixed(i);
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//Remove any excess zeros
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while (numStr.charAt(numStr.length - 1) === '0') {
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numStr = numStr.substring(0, numStr.length - 1);
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}
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//If last char remaining is a decimal point, remove it
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if (numStr.charAt(numStr.length - 1) === '.') {
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numStr = numStr.substring(0, numStr.length - 1);
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}
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}
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//Add commas for thousands etc
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let dp = numStr.indexOf('.'); //find deciaml point
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if (dp < 0) { //no dp found
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dp = numStr.length;
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}
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let insPos = dp - 3;
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insCount = 0;
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while (insPos > 0) {
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insCount++;
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numStr = numStr.slice(0, insPos) + ',' + numStr.slice(insPos);
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insPos -= 3;
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}
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return (numStr);
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}
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function capF(inWord) { //Capitalise first letter of string
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return (inWord.charAt(0).toUpperCase() + inWord.slice(1));
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}
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function getPastTense(action) {
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let ret = '';
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if (action === 'buy') {
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ret = 'Bought'
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} else if (action === 'sell') {
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ret = 'Sold'
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}
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return ret;
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}
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Pushbullet.prototype.mail = function(subject, content, done) {
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var pusher = new pushbullet(pbConf.key);
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pusher.note(pbConf.email, subject, content, function(error, response) {
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if (error || !response) {
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log.error('Pushbullet ERROR:', error)
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} else if (response && response.active) {
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log.info('Pushbullet Message Sent')
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}
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});
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};
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Pushbullet.prototype.checkResults = function(err) {
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if (err)
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log.warn('error sending pushbullet message', err);
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else
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log.info('Send advice via pushbullet message.');
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};
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module.exports = Pushbullet;
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