MPRemoteCommandCenter watch and if play run command

Question

I am making my Apple CarPlay app, and my list items need to watch and see if the media player is playing or not.

As I need to show the spinning wheel until such time that the media player starts playing.

I know I need to access MPRemoteCommandCenter and do something like this:

 let commandCenter = MPRemoteCommandCenter.shared()

    // Add handler for Play Command
    commandCenter.playCommand.addTarget { [unowned self] event in
        if self.player?.rate == 0.0 {
            self.player?.play()
            return .success
        }
        return .commandFailed
    }

    // Add handler for Pause Command
    commandCenter.pauseCommand.addTarget { [unowned self] event in
        if self.player?.rate == 1.0 {
            self.player?.pause()
            return .success
        }
        return .commandFailed
    }

However since I already have the media player (mediaplayer.swift) I thought I would be able to watch it.

I tried to do an if statement however that did not work.

if MusicPlayer.shared.player?.rate == 1.0 {
completion()
}

However it does not wait until the media player is playing to run this, instead it checks it and if at the time of the check it is playing it will complete otherwise it will just keep spinning.

I know there is a way to do this. My thinking is I'll need to make a func that watching the media player?