Add disconnect command

src/commands/disconnect.ts

@@ -0,0 +1,27 @@
+import {Message} from 'discord.js';
+import {TYPES} from '../types';
+import {inject, injectable} from 'inversify';
+import PlayerManager from '../managers/player';
+import Command from '.';
+
+@injectable()
+export default class implements Command {
+  public name = 'disconnect';
+  public examples = [
+    ['disconnect', 'pauses and disconnects player']
+  ];
+
+  private readonly playerManager: PlayerManager;
+
+  constructor(@inject(TYPES.Managers.Player) playerManager: PlayerManager) {
+    this.playerManager = playerManager;
+  }
+
+  public async execute(msg: Message, _: string []): Promise<void> {
+    const player = this.playerManager.get(msg.guild!.id);
+
+    player.disconnect();
+
+    await msg.channel.send('u betcha');
+  }
+}

src/commands/play.ts

@@ -57,7 +57,7 @@ export default class implements Command {
       }
 
       // Must be resuming play
-      if (queue.get().length === 0) {
+      if (queue.get().length === 0 && !queue.getCurrent()) {
         await res.stop(errorMsg('nothing to play'));
         return;
       }