/* JellyfinPlayer/Swiftfin is subject to the terms of the Mozilla Public
 * License, v2.0. If a copy of the MPL was not distributed with this
 * file, you can obtain one at https://mozilla.org/MPL/2.0/.
 *
 * Copyright 2021 Aiden Vigue & Jellyfin Contributors
 */

import CoreData
import SwiftUI
import Defaults

struct SettingsView: View {
    @Environment(\.managedObjectContext) private var viewContext
    
    @ObservedObject var viewModel: SettingsViewModel
    
    @Binding var close: Bool
    @Default(.inNetworkBandwidth)
    var inNetworkStreamBitrate
    @Default(.outOfNetworkBandwidth)
    var outOfNetworkStreamBitrate
    @Default(.isAutoSelectSubtitles)
    var isAutoSelectSubtitles
    @Default(.autoSelectSubtitlesLangCode)
    var autoSelectSubtitlesLangcode
    @Default(.autoSelectAudioLangCode)
    var autoSelectAudioLangcode
    @State private var username: String = ""
    
    func onAppear() {
        username = SessionManager.current.user.username ?? ""
    }
    
    var body: some View {
        NavigationView {
            Form {
                Section(header: Text("Playback settings")) {
                    Picker("Default local quality", selection: $inNetworkStreamBitrate) {
                        ForEach(self.viewModel.bitrates, id: \.self) { bitrate in
                            Text(bitrate.name).tag(bitrate.value)
                        }
                    }
                    
                    Picker("Default remote quality", selection: $outOfNetworkStreamBitrate) {
                        ForEach(self.viewModel.bitrates, id: \.self) { bitrate in
                            Text(bitrate.name).tag(bitrate.value)
                        }
                    }
                }
                
                Section(header: Text("Accessibility")) {
                    Toggle("Automatically show subtitles", isOn: $isAutoSelectSubtitles)
                    Picker("Subtitles Language preferences", selection: $autoSelectSubtitlesLangcode) {
                        Text("Auto")
                            .tag("Auto")
                        ForEach(viewModel.isoLanguageCodesPair, id: \.1) {
                            Text($0.0)
                                .tag($0.1)
                        }
                    }
                    Picker("Audio Language preferences", selection: $autoSelectAudioLangcode) {
                        Text("Auto")
                            .tag("Auto")
                        ForEach(viewModel.isoLanguageCodesPair, id: \.1) {
                            Text($0.0)
                                .tag($0.1)
                        }
                    }
                }
                
                Section {
                    HStack {
                        Text("Signed in as \(username)").foregroundColor(.primary)
                        Spacer()
                        Button {
                            let nc = NotificationCenter.default
                            nc.post(name: Notification.Name("didSignOut"), object: nil)
                            
                            
                            SessionManager.current.logout()
                        } label: {
                            Text("Log out").font(.callout)
                        }
                    }
                }
            }
            .padding(.top, 12)
            .navigationBarTitle("Settings", displayMode: .inline)
            .toolbar {
                ToolbarItemGroup(placement: .navigationBarLeading) {
                    Button {
                        close = false
                    } label: {
                        Text("Back").font(.callout)
                    }
                }
            }
        }.onAppear(perform: onAppear)
    }
}