import Flutter
import UIKit
import app_links

class SceneDelegate: FlutterSceneDelegate {
  override func scene(
    _ scene: UIScene,
    willConnectTo session: UISceneSession,
    options connectionOptions: UIScene.ConnectionOptions
  ) {
    super.scene(scene, willConnectTo: session, options: connectionOptions)

    // app_links 6 uses UIApplicationDelegate callbacks. With UIScene, launch
    // URLs arrive here instead; warm links still use Flutter's forwarding.
    // Save the launch URL in the plugin before Dart subscribes to its stream.
    if let url = connectionOptions.urlContexts.first?.url {
      AppLinks.shared.handleLink(url: url)
    } else if let url = connectionOptions.userActivities
      .first(where: { $0.activityType == NSUserActivityTypeBrowsingWeb })?.webpageURL {
      AppLinks.shared.handleLink(url: url)
    }
  }
}

/// Owns scanner visibility without replacing Flutter's normal status-bar policy.
@objc(BuzzFlutterViewController)
class BuzzFlutterViewController: FlutterViewController {
  private var scannerHidesStatusBar = false

  override var prefersStatusBarHidden: Bool {
    scannerHidesStatusBar || super.prefersStatusBarHidden
  }

  override var preferredStatusBarUpdateAnimation: UIStatusBarAnimation {
    UIAccessibility.isReduceMotionEnabled ? .none : .fade
  }

  func setScannerStatusBarHidden(_ hidden: Bool) {
    guard scannerHidesStatusBar != hidden else { return }
    scannerHidesStatusBar = hidden
    UIView.animate(
      withDuration: UIAccessibility.isReduceMotionEnabled ? 0 : 0.23,
      delay: 0,
      options: [.beginFromCurrentState, .curveEaseInOut]
    ) {
      self.setNeedsStatusBarAppearanceUpdate()
    }
  }
}