#nullable enable
using System;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.Extensions.Logging;
 
namespace Microsoft.Maui
{
	public abstract class ImageSourceService : IImageSourceService
	{
		public ImageSourceService(ILogger? logger = null)
		{
			Logger = logger;
		}
 
		public ILogger? Logger { get; }
 
#if __ANDROID__
		public virtual async Task<IImageSourceServiceResult?> LoadDrawableAsync(
			IImageSource imageSource,
			Android.Widget.ImageView imageView,
			CancellationToken cancellationToken = default)
		{
			var realResult = await GetDrawableAsync(imageSource, imageView.Context!, cancellationToken);
 
			if (realResult is null)
			{
				imageView.SetImageDrawable(null);
				return null;
			}
 
			imageView.SetImageDrawable(realResult.Value);
 
			var result = new ImageSourceServiceLoadResult(
				realResult.IsResolutionDependent,
				() => realResult.Dispose());
 
			return result;
		}
 
		public abstract Task<IImageSourceServiceResult<Android.Graphics.Drawables.Drawable>?> GetDrawableAsync(
			IImageSource imageSource,
			Android.Content.Context context,
			CancellationToken cancellationToken = default);
#elif __IOS__
		public abstract Task<IImageSourceServiceResult<UIKit.UIImage>?> GetImageAsync(
			IImageSource imageSource,
			float scale = 1,
			CancellationToken cancellationToken = default);
#elif TIZEN || __TIZEN__
		public abstract Task<IImageSourceServiceResult<MauiImageSource>?> GetImageAsync(
			IImageSource imageSource,
			CancellationToken cancellationToken = default);
#elif WINDOWS
		public abstract Task<IImageSourceServiceResult<UI.Xaml.Media.ImageSource>?> GetImageSourceAsync(
			IImageSource imageSource,
			float scale = 1,
			CancellationToken cancellationToken = default);
#endif
	}
}