import AVFoundation
import SwiftUI

#if os(iOS)
import UIKit

struct InlineVideoPlayer: UIViewRepresentable {
    let player: AVPlayer

    func makeUIView(context: Context) -> PlayerView {
        let view = PlayerView()
        view.playerLayer.player = player
        return view
    }

    func updateUIView(_ uiView: PlayerView, context: Context) {
        uiView.playerLayer.player = player
    }

    final class PlayerView: UIView {
        override class var layerClass: AnyClass { AVPlayerLayer.self }

        var playerLayer: AVPlayerLayer {
            layer as! AVPlayerLayer
        }

        override init(frame: CGRect) {
            super.init(frame: frame)
            playerLayer.videoGravity = .resizeAspectFill
        }

        required init?(coder: NSCoder) {
            nil
        }
    }
}
#elseif os(macOS)
import AppKit

struct InlineVideoPlayer: NSViewRepresentable {
    let player: AVPlayer

    func makeNSView(context: Context) -> PlayerView {
        let view = PlayerView()
        view.playerLayer.player = player
        return view
    }

    func updateNSView(_ nsView: PlayerView, context: Context) {
        nsView.playerLayer.player = player
    }

    final class PlayerView: NSView {
        let playerLayer = AVPlayerLayer()

        override init(frame frameRect: NSRect) {
            super.init(frame: frameRect)
            wantsLayer = true
            layer = playerLayer
            playerLayer.videoGravity = .resizeAspectFill
        }

        required init?(coder: NSCoder) {
            nil
        }

        override func layout() {
            super.layout()
            playerLayer.frame = bounds
        }
    }
}
#endif