client.on(`message`, (message: Message) => {
  // Check if message is a command
  if(message.content.startsWith(config.prefix)) {
    // Splits message into command and arguments
    var text: string[] = message.content.toLowerCase().split(` `)
    var command: string = text[0].substr(1)
    text.shift()
    // Matches command with known commands
    switch(command) {
      /*
        If it's a public command, it fires the handler straight away
        and passes the message object and the arguments passed into
        the command
      */
      /**
       * joinchannel and leavechannel commands
       * @deprecated
       * @todo Remove at the start of summer 2018
       */
      case `joinchannel`:
        joinChannel(message.member, message.guild, text)
        break
      case `leavechannel`:
        leaveChannel(message.member, message.guild, text)
        break
      /*
        If it's a command that requires elevation, it first checks
        that the user who sent the command passes the authentication
        function, and then it fires the handler with the appropriate
        arguments
      */
      case `doroles`:
        if (authenticate(message.member)) {
          doRoles(message.guild)
        } else {
            message.member.send('you must be an authorized user to use this command!')
        }
        break
      case `prune`:
        if (authenticate(message.member)) {
          prune(message.channel as TextChannel, parseInt(text[0]) + 1)
        } else {
          message.member.send('you must be an authorized user to use this command!')
        }
        break
      // If the command wasn't recognized, it replies saying that the command wasn't recognized
      default:
        message.member.send("sorry I didn't recognize that command.")
    }

    message.delete().then(
      () => {
        console.log("Deleted command message.")
      },
      () => {
        console.log("Couldn't delete message.")
      }
    )
  }
})

  public getVoiceChannelFromMessageAuthor(message: Message) {
    const voiceChannel = message.member.voiceChannel;
    if (!voiceChannel) {
      message.reply('Join a voice channel first!');
    }

    return voiceChannel;
  }

 private isValidMessage(message: Message) {
   return !message.isDirectMessage() &&
          message.hasPrefix(this.prefix) &&
          !this.db.isIgnoredUser(message.author.id);
 }

 .then((reply: Message) => {
   reply.delete(3000)
 }