using System.Threading.Tasks;
using Wabbajack.Common;
using Wabbajack.DTOs;
using Wabbajack.DTOs.Directives;
using Wabbajack.Paths.IO;

namespace Wabbajack.Compiler.CompilationSteps
{
    public class IncludeDummyESPs : ACompilationStep
    {
        public IncludeDummyESPs(ACompiler compiler) : base(compiler)
        {
        }

        public override async ValueTask<Directive?> Run(RawSourceFile source)
        {
            if (source.AbsolutePath.Extension != Ext.Esp &&
                source.AbsolutePath.Extension != Ext.Esm) return null;

            var bsa = source.AbsolutePath.ReplaceExtension(Ext.Bsa);
            var bsaTextures = source.AbsolutePath.AppendToName(" - Textures").ReplaceExtension(Ext.Bsa);

            if (source.AbsolutePath.Size() > 250 || !bsa.FileExists() && !bsaTextures.FileExists()) return null;

            var inline = source.EvolveTo<InlineFile>();
            inline.SourceDataID = await _compiler.IncludeFile(await source.AbsolutePath.ReadAllBytesAsync());
            return inline;
        }
    }
}