Added message collector

src/Util.ts

@@ -127,4 +127,16 @@ export default class Util {
     await log.save();
     await account.save();
   }
+
+  public async messageCollector(message: Message, question: string, timeout: number, shouldDelete = false, choices: string[] = null, filter = (msg: Message): boolean|void => {}) {
+    const msg = await message.channel.createMessage(question);
+    return new Promise((res, rej) => {
+      setTimeout(() => rej(new Error('Did not supply a valid input in time')), timeout);
+      this.client.on('messageCreate', (Msg) => {
+        if (filter(Msg) === false) return;
+        const verif = choices ? choices.includes(Msg.content) : Msg.content;
+        if (verif) { if (shouldDelete) msg.delete(); res(Msg.content); }
+      });
+    });
+  }
 }