feat(stop): ability to stop bot from listening on updates

resolve #12

lib/functions/poll.js

@@ -5,6 +5,7 @@ export default function poll(bot) {
     }
     bot.emit('update', response.result);
 
+    if (bot._stop) return null;
     return poll(bot);
   });
 }

lib/functions/webhook.js

@@ -12,7 +12,7 @@ export default function webhook(options = {}, bot) {
 
   return bot.api.setWebhook(options.url).then(() => {
 
-    https.createServer(options.server, (req, res) => {
+    bot._webhookServer = https.createServer(options.server, (req, res) => {
       return getBody(req).then(data => {
         bot.emit('update', qs.parse(data).result);
 

lib/index.js

@@ -133,6 +133,20 @@ export default class Bot extends EventEmitter {
     return message.send(this).catch(console.error);
   }
 
+  /**
+   * Stops the bot, deattaching all listeners and polling
+   */
+  stop() {
+    this._stop = true;
+
+    if (this._webhookServer) {
+      this._webhookServer.close();
+    }
+
+    this.removeListener('update', this._update);
+    this._events = {};
+  }
+
   /**
    * The internal update event listener, used to parse messages and fire
    * command/get events - YOU SHOULD NOT USE THIS
@@ -148,8 +162,6 @@ export default class Bot extends EventEmitter {
       this.update.offset += 1;
     }
 
-    console.log(update);
-
     update.forEach(res => {
       let text = res.message.text;
       if (!text) return;