using ImageMagick;
using SixLabors.ImageSharp.Formats;

namespace FileFlows.ImageNodes.Images;

public class ImageFormat: ImageNode
{
    public override int Inputs => 1;
    public override int Outputs => 2;
    public override FlowElementType Type => FlowElementType.Process;

    public override string HelpUrl => "https://fileflows.com/docs/plugins/image-nodes/image-format";
    public override string Icon => "fas fa-file-image";

    public override int Execute(NodeParameters args)
    {
        var formatOpts = GetFormat(args);
        
        if(formatOpts.format?.Name == CurrentFormat)
        {
            args.Logger?.ILog("File already in format: " + formatOpts.format.Name);
            return 2;
        }

        string extension = FileHelper.GetExtension(args.WorkingFile).ToLowerInvariant().TrimStart('.');
        if (extension == "heic")
        {
            // special case have to use imagemagick
            
            using var image = new MagickImage(args.WorkingFile);
            SaveImage(args, image, formatOpts.file);
            return 1;
        }
        else
        {
            using var image = Image.Load(args.WorkingFile, out IImageFormat format);
            SaveImage(args, image, formatOpts.file, formatOpts.format ?? format);
            return 1;
        }
    }
}