// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import Flutter
import FlutterPluginRegistrant
import SwiftUI

@Observable
class AppDelegate: FlutterAppDelegate {
  let flutterEngine = FlutterEngine(name: "my flutter engine")

  override func application(
    _ application: UIApplication,
    didFinishLaunchingWithOptions launchOptions: [UIApplication
      .LaunchOptionsKey: Any]?
  ) -> Bool {
    flutterEngine.run()
    GeneratedPluginRegistrant.register(with: self.flutterEngine)
    return true
  }

  override func application(
    _ application: UIApplication,
    configurationForConnecting connectingSceneSession: UISceneSession,
    options: UIScene.ConnectionOptions
  ) -> UISceneConfiguration {
    let configuration = UISceneConfiguration(
      name: nil,
      sessionRole: connectingSceneSession.role
    )
    configuration.delegateClass = SceneDelegate.self
    return configuration
  }
}

class SceneDelegate: UIResponder, UIWindowSceneDelegate,
  FlutterSceneLifeCycleProvider
{

  let sceneLifeCycleDelegate = FlutterPluginSceneLifeCycleDelegate()

  var window: UIWindow?

  func scene(
    _ scene: UIScene,
    willConnectTo session: UISceneSession,
    options connectionOptions: UIScene.ConnectionOptions
  ) {
    guard (scene as? UIWindowScene) != nil else { return }

    sceneLifeCycleDelegate.scene(
      scene,
      willConnectTo: session,
      options: connectionOptions
    )
  }

  func sceneDidDisconnect(_ scene: UIScene) {
    sceneLifeCycleDelegate.sceneDidDisconnect(scene)
  }

  func sceneWillEnterForeground(_ scene: UIScene) {
    sceneLifeCycleDelegate.sceneWillEnterForeground(scene)
  }

  func sceneDidBecomeActive(_ scene: UIScene) {
    sceneLifeCycleDelegate.sceneDidBecomeActive(scene)
  }

  func sceneWillResignActive(_ scene: UIScene) {
    sceneLifeCycleDelegate.sceneWillResignActive(scene)
  }

  func sceneDidEnterBackground(_ scene: UIScene) {
    sceneLifeCycleDelegate.sceneDidEnterBackground(scene)
  }

  func scene(
    _ scene: UIScene,
    openURLContexts URLContexts: Set<UIOpenURLContext>
  ) {
    sceneLifeCycleDelegate.scene(scene, openURLContexts: URLContexts)
  }

  func scene(_ scene: UIScene, continue userActivity: NSUserActivity) {
    sceneLifeCycleDelegate.scene(scene, continue: userActivity)
  }

  func windowScene(
    _ windowScene: UIWindowScene,
    performActionFor shortcutItem: UIApplicationShortcutItem,
    completionHandler: @escaping (Bool) -> Void
  ) {
    sceneLifeCycleDelegate.windowScene(
      windowScene,
      performActionFor: shortcutItem,
      completionHandler: completionHandler
    )
  }
}

@main
struct xcode_swiftuiApp: App {
  @UIApplicationDelegateAdaptor(AppDelegate.self) var appDelegate

  var body: some Scene {
    WindowGroup {
      ContentView()
    }
  }
}