Add pause/resume

src/commands/pause.ts

@@ -0,0 +1,29 @@
+import {Message} from 'discord.js';
+import {TYPES} from '../types';
+import {inject, injectable} from 'inversify';
+import PlayerManager from '../managers/player';
+import {STATUS} from '../services/player';
+import Command from '.';
+
+@injectable()
+export default class implements Command {
+  public name = 'pause';
+  public description = 'pause currently playing song';
+  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);
+
+    if (player.status !== STATUS.PLAYING) {
+      await msg.channel.send('error: not currently playing');
+      return;
+    }
+
+    player.pause();
+    await msg.channel.send('paused');
+  }
+}