first commit

plugins/mailer.js

@@ -0,0 +1,138 @@
+var email = require("emailjs");
+var _ = require('lodash');
+var log = require('../core/log.js');
+var util = require('../core/util.js');
+var config = util.getConfig();
+var mailConfig = config.mailer;
+
+var Mailer = function(done) {
+  _.bindAll(this);
+
+  this.server;
+  this.price = 'N/A';
+
+  this.done = done;
+  this.setup();
+};
+
+Mailer.prototype.setup = function(done) {
+  var setupMail = function(err, result) {
+    if(result) {
+      console.log('Got it.');
+      mailConfig.password = result.password;
+    }
+
+    if(_.isEmpty(mailConfig.to))
+      mailConfig.to = mailConfig.email;
+    if(_.isEmpty(mailConfig.from))
+      mailConfig.from = mailConfig.email;
+    if(_.isEmpty(mailConfig.user) && mailConfig.smtpauth)
+      mailConfig.user = mailConfig.email;
+
+    this.server = email.server.connect({
+      user: mailConfig.user,
+      password: mailConfig.password,
+      host: mailConfig.server,
+      ssl: mailConfig.ssl,
+      port: mailConfig.port,
+      tls: mailConfig.tls
+    });
+
+    if(mailConfig.sendMailOnStart) {
+      this.mail(
+        "Gekko has started",
+        [
+          "I've just started watching ",
+          config.watch.exchange,
+          ' ',
+          config.watch.currency,
+          '/',
+          config.watch.asset,
+          ". I'll let you know when I got some advice"
+        ].join(''),
+        _.bind(function(err) {
+          this.checkResults(err);
+          this.done();
+        }, this)
+      );
+    } else
+      this.done();
+
+    log.debug('Setup email adviser.');
+  };
+
+  if(!mailConfig.password) {
+    // ask for the mail password
+    var prompt = require('prompt-lite');
+    prompt.start();
+    var warning = [
+      '\n\n\tYou configured Gekko to mail you advice, Gekko needs your email',
+      'password to send emails (to you). Gekko is an opensource project',
+      '[ http://github.com/askmike/gekko ], you can take my word but always',
+      'check the code yourself.',
+      '\n\n\tWARNING: If you have not downloaded Gekko from the github page above we',
+      'CANNOT guarantuee that your email address & password are safe!\n'
+    ].join('\n\t');
+    log.warn(warning);
+    prompt.get({name: 'password', hidden: true}, _.bind(setupMail, this));
+  } else {
+    setupMail.call(this);
+  }
+};
+
+Mailer.prototype.mail = function(subject, content, done) {
+
+  this.server.send({
+    text: content,
+    from: mailConfig.from,
+    to: mailConfig.to,
+    subject: mailConfig.tag + subject
+  }, done || this.checkResults);
+};
+
+Mailer.prototype.processCandle = function(candle, done) {
+  this.price = candle.close;
+
+  done();
+};
+
+Mailer.prototype.processAdvice = function(advice) {
+
+  if (advice.recommendation == "soft" && mailConfig.muteSoft) return;
+
+  var text = [
+    'Gekko is watching ',
+    config.watch.exchange,
+    ' and has detected a new trend, advice is to go ',
+    advice.recommendation,
+    '.\n\nThe current ',
+    config.watch.asset,
+    ' price is ',
+    config.watch.currency,
+    ' ',
+    this.price
+  ].join('');
+
+  var subject = 'New advice: go ' + advice.recommendation;
+
+  this.mail(subject, text);
+};
+
+Mailer.prototype.processStratNotification = function({ content }) {
+  const subject = `New notification from ${config.tradingAdvisor.method}`;
+  const text = [
+    'Gekko received new notification :\n\n',
+    content
+  ].join('');
+
+  this.mail(subject, text);
+}
+
+Mailer.prototype.checkResults = function(err) {
+  if(err)
+    log.warn('error sending email', err);
+  else
+    log.info('Send advice via email.');
+};
+
+module.exports = Mailer;