Option to set IRC users to away, closes ekmartin#10

lib/bot.js

@@ -41,6 +41,7 @@ class Bot {
     this.muteSlackbot = options.muteSlackbot || false;
     this.nickSuffix = options.userNickSuffix || '-sl';
     this.nickRegex = new RegExp(`@?(\\S+${this.nickSuffix}\\d?)`, 'g');
+    this.disconnectOnAway = options.disconnectOnAway || false;
     this.ircTimeout = options.ircTimeout || 120; // Seconds
 
     const ircOptions = {
@@ -134,13 +135,20 @@ class Bot {
       if (event.presence === 'active') {
         if (client == null) {
           this.connectNewClient(user);
-        } else {
+        } else if (this.disconnectOnAway) {
           clearTimeout(client.timer);
+        } else {
+          client.send('AWAY');
         }
       } else if (client != null) {
-        client.timer = setTimeout(() => {
-          this.deleteClient(user, `Slack user ${user.name} went away.`);
-        }, this.ircTimeout * 1000);
+        const awayMsg = `Slack user ${user.name} went away`;
+        if (this.disconnectOnAway) {
+          client.timer = setTimeout(() => {
+            this.deleteClient(user, awayMsg);
+          }, this.ircTimeout * 1000);
+        } else {
+          client.send('AWAY', awayMsg);
+        }
       }
     });