import UIKit
import AVKit

class ViewController: UIViewController {
    var player: AVPlayer!
    var playerLayer: AVPlayerLayer!
    var playerViewController: AVPlayerViewController!
    
    @IBOutlet weak var stackView: UIStackView!
    
    override func viewDidLoad() {
        super.viewDidLoad()

        // AVPlayer 초기화
        guard let videoURL = Bundle.main.url(forResource: "sample", withExtension: "mp4") else {
            print("동영상 파일을 찾을 수 없습니다.")
            return
        }
        player = AVPlayer(url: videoURL)

        // AVPlayerLayer 초기화
        playerLayer = AVPlayerLayer(player: player)
        playerLayer.videoGravity = .resizeAspectFill
        playerLayer.frame = stackView.bounds
        
        // AVPlayerViewController 초기화
        playerViewController = AVPlayerViewController()
        playerViewController.player = player
        
        // 스택 뷰에 AVPlayerLayer와 AVPlayerViewController 추가
        stackView.layer.addSublayer(playerLayer)
        addChildViewController(playerViewController)
        stackView.addSubview(playerViewController.view)
        playerViewController.view.frame = stackView.bounds
        playerViewController.didMove(toParentViewController: self)
    }
    
    // 플레이어 재생/정지 버튼 액션
    @IBAction func playButtonTapped(_ sender: UIButton) {
        if player.rate == 0 {
            player.play()
            sender.setTitle("Pause", for: .normal)
        } else {
            player.pause()
            sender.setTitle("Play", for: .normal)
        }
    }
}