Generate strongly typed MonoGame resources

Generator.cs

using System;
using System.IO;
using System.Linq;
using System.Text.RegularExpressions;

namespace BunnyLand.ResourceGenerator
{
    public static class Generator
    {
        public static void WriteSongs(string contentPath, TextWriter textWriter)
        {
            Write(contentPath, textWriter, "Songs", "mp3", "Song", "Microsoft.Xna.Framework.Media");
        }

        public static void WriteSpriteFonts(string contentPath, TextWriter textWriter)
        {
            Write(contentPath, textWriter, "SpriteFonts", "spritefont", "SpriteFont",
                "Microsoft.Xna.Framework.Graphics");
        }

        public static void WriteTextures(string contentPath, TextWriter textWriter)
        {
            Write(contentPath, textWriter, "Textures", "png", "Texture2D", "Microsoft.Xna.Framework.Graphics");
        }

        public static void WriteSoundEffects(string contentPath, TextWriter textWriter)
        {
            Write(contentPath, textWriter, "SoundEffects", "wav", "SoundEffect", "Microsoft.Xna.Framework.Audio");
        }

        private static void Write(string contentPath, TextWriter textWriter, string className, string extension,
            string propertyType, params string[] namespaces)
        {
            if (textWriter == null) throw new ArgumentNullException(nameof(textWriter));

            textWriter.Write($@"// <auto-generated />
// ReSharper disable All
using System.ComponentModel;
using Microsoft.Xna.Framework.Content;
{string.Join(Environment.NewLine, namespaces.Select(ns => $"using {ns};"))}

namespace BunnyLand.DesktopGL.Resources
{{
    public partial class {className} : ResourcesBase<{propertyType}>
    {{
        public {className}(ContentManager contentManager) : base(contentManager)
        {{
        }}
");
            var enumerationOptions = new EnumerationOptions {
                RecurseSubdirectories = true
            };

            foreach (var path in Directory.EnumerateFiles(contentPath, $"*.{extension}", enumerationOptions)) {
                textWriter.Write($@"
        [Description(""{FilePathToRelativePath(path, extension)}"")]
        public {propertyType} {FilePathToPropertyName(path, extension)} {{ get; set; }}");
            }

            textWriter.Write(@"
    }
}
");
        }

        private static string FilePathToRelativePath(string path, string extension)
        {
            return path.Replace("\\", "/", StringComparison.OrdinalIgnoreCase).Split("Content/").Last()
                .Replace($".{extension}", "", StringComparison.OrdinalIgnoreCase);
        }

        private static readonly Regex InvalidPropertyNameRegex = new Regex("[^a-zA-Z0-9]");

        private static string FilePathToPropertyName(string path, string extension)
        {
            var fileName = new FileInfo(path).Name.Replace($".{extension}", "", StringComparison.OrdinalIgnoreCase);
            var propertyName = InvalidPropertyNameRegex.Replace(fileName, "");
            return propertyName;
        }
    }
}

ResourcesBase.cs

using System.ComponentModel;
using System.Linq;
using System.Reflection;
using Microsoft.Xna.Framework.Content;

namespace BunnyLand.DesktopGL.Resources
{
    public abstract class ResourcesBase<T>
    {
        protected readonly ContentManager ContentManager;

        protected ResourcesBase(ContentManager contentManager)
        {
            ContentManager = contentManager;
        }

        public void Load()
        {
            foreach (var propertyInfo in GetType().GetProperties().Where(p => p.PropertyType == typeof(T))) {
                var file = propertyInfo.GetCustomAttribute<DescriptionAttribute>()?.Description;
                if (file != null) {
                    var texture = ContentManager.Load<T>(file);
                    propertyInfo.SetValue(this, texture);
                }
            }
        }
    }
}