Modular Backends & Configuration System

Changelog: hpaper v0.5

🔧 Major Architecture Changes

• Complete rewrite of the application architecture
• Removed dependency on github.com/sevlyar/go-daemon - now using custom daemon implementation
• Modular backend system - abstracted wallpaper backends into pluggable interfaces
• Configuration file support - moved from command-line only to config file + CLI hybrid approach

🎨 New Backend Support

• Added Hyprpaper backend - now supports both Swaybg and Hyprpaper
• Backend abstraction - easy to add new wallpaper managers in the future
• Monitor-specific wallpaper setting

⚙️ Configuration System

• New config file system - ~/.config/hpaper/hpaper.conf with auto-generation
• Comprehensive settings:
  • Rotation interval configuration
  • Backend selection (swaybg/hyprpaper)
  • swaybg mode and output settings
  • Monitor name for hyprpaper
  • Pywal integration settings

🎨 Pywal Integration

• Built-in pywal support - automatic color scheme generation from wallpapers
• Configurable pywal commands - customize how pywal is invoked
• Cross-backend compatibility - works with both swaybg and hyprpaper

💬 IPC System Overhaul

• Unix socket communication - replaced signal-based IPC with socket-based system
• New current command - get the path of currently applied wallpaper
• Improved error handling and response system
• Better client-daemon separation

❌ Removed Features

• Download functionality - removed due to poor quality and repetitive wallpapers from free providers

🛠️ Improved Functionality

• Better process management - more reliable swaybg process handling
• Enhanced logging - simplified logging system (removed complexity of leveled logging)
• Robust daemon lifecycle - improved startup, shutdown, and signal handling
• Thread-safe operations - proper mutex usage for concurrent access

📋 Command Changes

• Available commands: start, next, prev, current, quit
• Config flag support: -config flag after start for custom configuration files
• Removed: download command and single-image setting

🔍 New Features

• Auto-config generation - creates default config if none exists
• Better wallpaper validation - expanded supported image formats
• Improved randomization - better shuffle algorithm using proper seeding

⚠️ Breaking Changes

• Configuration required - now depends on config file instead of bloated CLI arguments and flags
• Command structure changed - simplified command interface
• Removed features - download and single-image functionality no longer available