// Copyright 2013 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/shell/platform/darwin/ios/framework/Source/UIViewController+FlutterScreenAndSceneIfLoaded.h"

#include "flutter/fml/logging.h"
#import "flutter/shell/platform/darwin/common/framework/Headers/FlutterMacros.h"

FLUTTER_ASSERT_ARC

@implementation UIViewController (FlutterScreenAndSceneIfLoaded)

- (UIWindowScene*)flutterWindowSceneIfViewLoaded {
  if (self.viewIfLoaded == nil) {
    FML_LOG(WARNING) << "Trying to access the window scene before the view is loaded.";
    return nil;
  }
  return self.viewIfLoaded.window.windowScene;
}

- (UIScreen*)flutterScreenIfViewLoaded {
  if (@available(iOS 13.0, *)) {
    if (self.viewIfLoaded == nil) {
      FML_LOG(WARNING) << "Trying to access the screen before the view is loaded.";
      return nil;
    }
    return [self flutterWindowSceneIfViewLoaded].screen;
  }
  return UIScreen.mainScreen;
}

@end