import Flutter
import UIKit
import AVFoundation

@UIApplicationMain
@objc class AppDelegate: FlutterAppDelegate {
  var batteryChannel: FlutterMethodChannel?
  
  override func application(
    _ application: UIApplication,
    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    
    print("🚀 application didFinishLaunchingWithOptions")
    GeneratedPluginRegistrant.register(with: self)
    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
  }
  
  override func applicationDidBecomeActive(_ application: UIApplication) {
    super.applicationDidBecomeActive(application)
    print("✅ applicationDidBecomeActive - App is now active")
    
    if batteryChannel == nil {
      print("🔧 Setting up method channel...")
      setupMethodChannel()
    } else {
      print("📱 Method channel already exists")
    }
  }
  
  override func applicationWillResignActive(_ application: UIApplication) {
    super.applicationWillResignActive(application)
    print("⚠️ applicationWillResignActive - App will become inactive")
  }
  
  override func applicationDidEnterBackground(_ application: UIApplication) {
    super.applicationDidEnterBackground(application)
    print("🌙 applicationDidEnterBackground - App is in background")
  }
  
  override func applicationWillEnterForeground(_ application: UIApplication) {
    super.applicationWillEnterForeground(application)
    print("🌅 applicationWillEnterForeground - App will enter foreground")
  }
  
  override func applicationWillTerminate(_ application: UIApplication) {
    super.applicationWillTerminate(application)
    print("💀 applicationWillTerminate - App will terminate")
  }
  
  private func setupMethodChannel() {
    guard let controller = window?.rootViewController as? FlutterViewController else {
      print("❌ FlutterViewController not available")
      return
    }
    
    print("🔗 Creating FlutterMethodChannel...")
    batteryChannel = FlutterMethodChannel(name: "samples.flutter.dev/battery",
                                        binaryMessenger: controller.binaryMessenger)
    print("✅ Method channel created successfully")
  }
}