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

import SwiftUI
import AVKit
import SafariServices

struct VideoPlayerView: View {
    @State var url: URL
    @Environment(\.dismiss) var dismiss
    
    var body: some View {
        VStack {
            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)))
            
            VideoViewControllerView(url: $url)
        }
        .background(.black)
    }
}

struct VideoViewControllerView: UIViewControllerRepresentable {
    @Binding var url: URL

    func makeUIViewController(context: Context) -> VideoViewController {
        return VideoViewController(videoURL: url)
    }

    func updateUIViewController(_ uiViewController: VideoViewController, context: Context) {
        if url != uiViewController.videoURL {
            uiViewController.videoURL = url
            uiViewController.layoutView()
        }
    }
}

class VideoViewController: UIViewController {
    var videoURL: URL
    
    init(videoURL: URL) {
        self.videoURL = videoURL
        super.init(nibName: nil, bundle: nil)
        layoutView()
    }
    
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
    }
    
    func layoutView() {
        self.view.subviews.forEach({
            $0.removeFromSuperview()
        })
        
        let sfVC = SFSafariViewController(url: self.videoURL)
        sfVC.view.translatesAutoresizingMaskIntoConstraints = false
        view.backgroundColor = .green
        self.addChild(sfVC)
        sfVC.didMove(toParent: self)
        sfVC.view.backgroundColor = .magenta
        sfVC.view.frame = self.view.bounds;
        self.view.addSubview(sfVC.view)
        sfVC.view.topAnchor.constraint(equalTo: view.topAnchor).isActive = true
        sfVC.view.bottomAnchor.constraint(equalTo: view.bottomAnchor).isActive = true
        sfVC.view.leadingAnchor.constraint(equalTo: view.leadingAnchor).isActive = true
        sfVC.view.trailingAnchor.constraint(equalTo: view.trailingAnchor).isActive = true
    }
}

//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")!)
//    }
//}