//
//  VideoPlayerView.swift
//  Werkout_ios
//
//  Created by Trey Tartt on 6/27/23.
//

import SwiftUI
import AVKit
import Combine

struct VideoPlayerView: View {
    @Environment(\.dismiss) var dismiss
    @Binding var avPlayer: AVPlayer
    var showDoneButton = true
    
    var pub = NotificationCenter.default.publisher(for: .AVPlayerItemDidPlayToEndTime)

    var body: some View {
        VStack {
            if self.showDoneButton {
                Button(action: {
                    dismiss()
                }, label: {
                    Text("Done")
                })
                .padding()
                .frame(maxWidth: .infinity)
                .background(Color(uiColor: UIColor(red: 0.11, green: 0.11, blue: 0.12, alpha: 1)))
            }
            
            VideoPlayer(player: avPlayer)
                .onAppear{
                    _ = try? AVAudioSession.sharedInstance().setCategory(AVAudioSession.Category.playback, mode: .default, options: .mixWithOthers)

                    avPlayer.play()
                }
        }
        .background(.black)
        .onReceive(pub) { (output) in
            avPlayer.pause()
            avPlayer.seek(to: .zero)
            _ = try? AVAudioSession.sharedInstance().setCategory(AVAudioSession.Category.playback, mode: .default, options: .mixWithOthers)

            avPlayer.play()
        }
        .onChange(of: avPlayer, perform: { newValue in
            avPlayer.play()
        })
    }
}


//struct VideoPlayerView_Previews: PreviewProvider {
//    static let exercise = PreviewData.parseExercises().first!
//
//    static var previews: some View {
//        VideoPlayerView(url: Bundle.main.url(forResource: "Straight_Leg_Sit_Up", withExtension: "mp4")!)
//    }
//}