$ show SvenGDK/RetroMultiTools
RetroMultiTools is a cross-platform desktop application built with Avalonia (.NET 8) that serves as a comprehensive utility suite for retro gaming enthusiasts. It provides a unified interface for ROM management, including browsing, inspection, patching (IPS/BPS/xDelta), format conversion (N64 byte order, CHD, archive extraction), verification (CRC, MD5, SHA, DAT file validation, dump quality checks), and emulator configuration for RetroArch, MAME, Mednafen, and Analogue consoles. The application also features a gamepad key mapper, disc burning and USB imaging tools, cheat code conversion across 23 systems, remote file transfer (FTP, SFTP, WebDAV, S3, cloud storage), and a self-updater. It supports 20 languages and runs on Windows, Linux, macOS, and FreeBSD, with Flatpak packaging available. The architecture is a monolithic desktop application with a sidebar navigation tree that loads over 40 distinct views, each backed by a code-behind file and often a static utility class. The core pattern is event-driven UI with async operations using IProgress<string> and CancellationToken for long-running tasks. Localization is handled via a singleton LocalizationManager that binds to XAML controls. Settings are persisted as JSON via AppSettings. The application integrates with external tools (chdman, DolphinTool, cdrecord, dd) and libraries (SDL2, SharpCompress, FluentFTP, SSH.NET, AWS SDK) for platform-specific functionality. Key strengths include a consistent async progress pattern across all tools, reusable utility classes for file operations, path validation, and drag-and-drop, and deep format knowledge for retro gaming file formats. The codebase demonstrates solid engineering practices for a desktop utility, though it suffers from some monolithic view files and hardcoded data that could benefit from modularization. No unit tests are visible, and the large feature surface introduces maintenance overhead.
The LLM identified 8 files worth highlighting for reuse:
A static utility class that validates file paths against directory traversal attacks. It checks for '..' sequences, absolute paths, and symbolic links, returning a boolean safe flag. This is a self-contained, reusable security pattern that can be extracted into any file-processing application.
A static helper that attaches drag-and-drop event handlers to Avalonia TextBox controls, supporting both file and folder drops. It handles the DragDrop event, extracts file paths, and sets the TextBox text. This is a clean, reusable UI pattern that can be applied to any Avalonia application needing file input.
Provides async methods for computing CRC32, MD5, SHA1, and SHA256 hashes of files using streaming reads with progress reporting via IProgress<string>. It uses a custom CRC32 table implementation and supports cancellation. This is a well-structured, reusable hashing utility that can be extracted into any .NET project requiring file integrity checks.
A singleton class that manages runtime language switching without restart. It loads .resx resource files, exposes an indexer for binding, and implements INotifyPropertyChanged to update the UI. The pattern is clean and reusable for any Avalonia or WPF application needing multi-language support.
Parses and writes RetroArch configuration files (key = "value" format) while preserving comments and blank lines. It provides typed accessors (GetBool, GetInt, GetString) and a CreateWithDefaults() method. This pattern is reusable for any application that needs to edit structured config files without losing user comments.
A static class that identifies retro gaming systems from ROM files by analyzing file extensions and binary headers (iNES, SNES LoROM/HiROM, N64 byte order, Game Boy logo, Mega Drive SEGA signature, etc.). It supports 46+ systems and provides detailed ROM info. This is a highly specialized but self-contained component that could be reused in any ROM management tool.
A static utility that encodes and decodes cheat codes for 23 different systems (Game Genie, Pro Action Replay, GameShark, etc.) using custom alphabets and bit manipulation. It handles multiple formats and provides validation. This is a non-obvious, self-contained component demonstrating deep domain knowledge, reusable in emulator frontends or cheat databases.
A full implementation of the VCDIFF (RFC 3284) decoder for applying xdelta patches, including Adler32 verification and support for custom code tables. It does not rely on external libraries and handles the complete patch application logic. This is a complex, self-contained binary patching component that can be extracted for use in any application needing xdelta support.