using Avalar.Services.Interfaces;
using Avalonia.Media.Imaging;
using ImageMagick;
using ReactiveUI;
using System;
using System.Threading;

namespace Avalar.Services
{
    public class ImageMagickResizer : ReactiveObject, IResizer
    {
        private uint m_Width;
        public uint Width {
            get => m_Width;
            set => this.RaiseAndSetIfChanged(ref m_Width, value);
        }

        private uint m_Height;
        public uint Height {
            get => m_Height;
            set => this.RaiseAndSetIfChanged(ref m_Height, value);
        }

        public IBitmap Process(IBitmap input, CancellationToken token)
        {
            using var image = input.ToMagickImage();
            var geometry = new MagickGeometry(Convert.ToInt32(Width), Convert.ToInt32(Height));
            geometry.IgnoreAspectRatio = true;
            image.Resize(geometry);
            return image.ToBitmap();
        }
    }
}