using System;
using System.IO;
using System.Reflection;

public static class RomLoader
{
    public static byte[] Load(string filename)
    {
        // Construct the embedded resource path. 
        // Assuming your project's default namespace is "Desktop" and the folder is "ROMS"
        string resourceName = $"Desktop.{filename}";

        var assembly = Assembly.GetExecutingAssembly();

        using (Stream stream = assembly.GetManifestResourceStream(resourceName))
        {
            if (stream == null)
            {
                // BULLETPROOFING: If the string is slightly wrong, this will print out 
                // exactly what the compiler actually named your embedded files!
                string[] availableResources = assembly.GetManifestResourceNames();
                string list = string.Join("\n", availableResources);
                throw new FileNotFoundException($"Could not find embedded ROM: {resourceName}\n\nAvailable embedded files are:\n{list}");
            }

            using (MemoryStream memoryStream = new MemoryStream())
            {
                stream.CopyTo(memoryStream);
                return memoryStream.ToArray();
            }
        }
    }
}