using System.IO;
using System.Threading.Tasks;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using SixLabors.ImageSharp.PixelFormats;
using MaddoShared.ImageSharpTests.Helpers;
using Shouldly;

namespace MaddoShared.ImageSharpTests.Tests
{
    [TestClass]
    public class ImageResizingTests
    {
        [TestMethod]
        public async Task BigImageResizesRespectSettings()
        {
            using var ws = new TempWorkspace();

            // create a large input image
            var inputPath = TestImageFactory.CreateSolidJpeg(ws.SourceDir.FullName, "input.jpg", 1600, 1200, new Rgba32(200, 200, 200, 255));

            var pic = CreatorFactory.CreateDefaultPicSettings();
            pic.LarghezzaBig = 800;
            pic.AltezzaBig = 600;
            pic.CreaMiniature = false;

            var svc = CreatorFactory.CreateImageCreator(pic);

            var state = new MaddoShared.ImageState
            {
                WorkFile = new FileInfo(inputPath),
                DestDir = ws.DestDir,
                SourceDir = ws.SourceDir
            };

            await svc.CreateImageAsync(state, null);

            var outPath = Path.Combine(ws.DestDir.FullName, state.NomeFileBig);
            using var outImg = SixLabors.ImageSharp.Image.Load<Rgba32>(outPath);

            outImg.Width.ShouldBe(800);
            outImg.Height.ShouldBe(600);
        }
    }
}