@preconcurrency import Flutter
import UIKit

@main
@objc class AppDelegate: FlutterAppDelegate {

  override func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
  }

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

// FlutterImplicitEngineDelegate 来自 Flutter ObjC 框架，尚未标注 @MainActor，
// 用 @preconcurrency 抑制 Swift 6 ConformanceIsolation 错误。
extension AppDelegate: @preconcurrency FlutterImplicitEngineDelegate {
  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
    GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
  }
}