let urlString = "http://traffic.libsyn.com/sedaily/PeriscopeData.mp3"
let audioURL = URL(string: urlString)

let artworkURL = URL(string: "https://w3schools.org.cn/w3images/fjords.jpg")

let asset = Asset(assetName: "Test", url: audioURL!, artworkURL: artworkURL)
let assetPlaybackManager = AssetPlayer(asset: asset)
assetPlaybackManager.playerDelegate = self

// If you want remote commands
// Initializer the `RemoteCommandManager`.
remoteCommandManager = RemoteCommandManager(assetPlaybackManager: assetPlaybackManager)

// Always enable playback commands in MPRemoteCommandCenter.
remoteCommandManager.activatePlaybackCommands(true)
remoteCommandManager.toggleChangePlaybackPositionCommand(true)
remoteCommandManager.toggleSkipBackwardCommand(true, interval: 30)
remoteCommandManager.toggleSkipForwardCommand(true, interval: 30)

extension ViewController: AssetPlayerDelegate {
    func playerIsSetup(_ player: AssetPlayer) {
        // Max values and initial values should be setup
        // Setup duration text
        print(player.durationText)
        // Setup TimeSlider max value
    }
    
    func currentAssetDidChange(_ player: AssetPlayer) {
        // Asset changed
        // @TODO: maybe remove this
        print("asset changed")
    }
    
    func playerPlaybackStateDidChange(_ player: AssetPlayer) {
        // player.state changed
        print("state changed")
        // Handle state changes like enabling and disabling play/pause buttons
    }
    
    func playerCurrentTimeDidChange(_ player: AssetPlayer) {
        // Current time changed, update sliders accordingly
        print("currentTime changed")
    }
    
    func playerPlaybackDidEnd(_ player: AssetPlayer) {
        // Video or audio finished
        // Please clean up your player view
        print("playback did end")
    }
    
    // Buffering Functions
    func playerIsLikelyToKeepUp(_ player: AssetPlayer) {
        // Amount of buffer time is in the green
        print("playback likely to keep")
    }
    
    func playerBufferTimeDidChange(_ player: AssetPlayer) {
        // Update the buffer slider if you have one
        print("buffer time change")
    }
}