//
//  ContentView.swift
//  vrtnu
//
//  Created by Jens Timmerman on 23/09/2020.
//

import SwiftUI
import AVKit
import AVFoundation
import Combine
import TVUIKit


struct ContentView: View {
    @ViewBuilder
    var body: some View {
        VRTNuView(vrtNu: VRTNu())
    }
}

struct LoginView: View{
    var vrtNu: VRTNu
    @State private var password: String = ""
    @State private var username: String = ""
    @State var authenticationDidFail: Bool = false
    // needed to update parent view when login was succesful
    @Binding var loginaction: Bool


    var body: some View {
        
        if authenticationDidFail {
            Text("Information not correct. Try again.")
                .offset(y: -10)
                .foregroundColor(.red)
        }
        TextField("VRTNu username", text: $username)
        SecureField("VRTNu password", text: $password)
        Button("Inloggen", action: {

            let loginok = vrtNu.login(username: username, password: password)
            if loginok{
                // reload parent view here
                withAnimation {
                    self.loginaction.toggle()
                }
            }else{
                authenticationDidFail = true
            }
        })
    }
}
struct VRTNuView: View{
    var vrtNu: VRTNu
    var body: some View {
        NavigationView(){
                List(vrtNu.getShows(), id: \.self){ show in
                    NavigationLink(destination: ShowView(show: show)){
                        HStack{
                            AsyncImage(url: show.imageURL,placeholder: {
                                //Image(name: "loading")
                                Text("Loading...")
                            }, image:{Image(uiImage:$0).resizable()}).frame(width: 300, height:300)
                            Text(show.title)
                        }
                }
            }
        }
    }
}
struct ShowView: View {
    var show: Show
    var body: some View {
        NavigationView(){
            List{
                ForEach(show.getSeasons(), id: \.self){ season in
                Section(header: Text(season.seasonName).font(.largeTitle)) {
                  ForEach(season.getEpisodes(), id:\.self){ episode in
                    NavigationLink(destination: VideoView(episode: episode)){
                        HStack{
                            AsyncImage(url: episode.imageURL,placeholder: {
                                //Image(name: "loading")
                                Text("Loading...")
                            },image:{Image(uiImage:$0).resizable()}).frame(width: 300, height: 300)
                            Text(episode.name)
                        }
                        }
                    }
                }}
            }
        }
    }
}

struct VisibleShowView: View {
    var show: Show
    var body: some View {
        NavigationView(){
            List(show.getSeasons(), id: \.self){ season in
                NavigationLink(destination: SeasonView(season: season)){
                    Text(season.seasonName)
                }
            }
        }
    }
}

struct SeasonView: View {
    var season: Season
    var body: some View {
        NavigationView(){
            List(season.getEpisodes(), id:\.self){ episode in
                NavigationLink(destination: VideoView(episode: episode)){
                    HStack{
                        AsyncImage(url: episode.imageURL,placeholder: {
                            //Image(name: "loading")
                            Text("Loading...")
                        },image:{Image(uiImage:$0).resizable()}).frame(width: 300, height: 300)
                        Text(episode.name)

                        }
                    }
                }
            }
        }
}

struct VideoView: View {
    var episode: Episode
    @State var loginaction: Bool = false

        
    var body: some View {
        if episode.authenticated() || loginaction {
            let player = AVPlayer(url: episode.getVideo().hlsUrl);
            VideoPlayer(player: player).fixedSize().onAppear(){
                player.play()
            }
        }else{
            LoginView(vrtNu: episode.season.show.vrtNu, loginaction: $loginaction)
        }
    };
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        SeasonView(season: VRTNu().getShows()[0].getSeasons()[0])
        //ContentView()
    }
}




/*struct OldContentView: View {
var body: some View {
NavigationView(){
 VStack(alignment: .leading) {
     ForEach(VRTNu().shows, id: \.self){ show in
         VStack{
             Text(show.title)
             HStack{

                 ForEach(show.seasons, id:\.self){ season in

                     List(season.episodes, id:\.self){ episode in
                         NavigationLink(destination: VideoView(url: episode.video.hlsUrl)){
                             VStack{
                             Text(season.seasonName)
                             Text(episode.name)
                             AsyncImage(url: episode.imageurl,placeholder: {
                                 //Image(name: "loading")
                                 Text("Loading...")
                                 Text("Loading...")
                                 Text("Loading...")
                                 Text("Loading...")
                                 Text("Loading...")
                                 Text("Loading...")
                                 Text("Loading...")
                                 Text("Loading...")
                                 Text("Loading...")
                                 Text("Loading...")
                                 Text("Loading...")
                             },image:{Image(uiImage:$0).resizable()})
                         }}
                     }
                 }
             }
         }
     }
 }
}
}
}*/