2.0.0

Version 2.0.0

Fixed version mismatch - Synchronized pom.xml version with plugin.yml (both now 2.0.0)
Fixed unused variable - Removed unused materialName variable in RedstoneListener
Fixed stats command - /arl stats now shows real statistics from CounterManager instead of hardcoded zeros
Fixed unused imports - Removed unused imports from CommandHandler and RedstoneListener
Fixed potential NPE - Added null check for location.getWorld() in CounterManager.sendAlert() to prevent crashes with unloaded chunks
Fixed event priority - Changed from MONITOR to LOW priority since we modify block state
Fixed log download - /arl logs download now shows log file info (name, size, path, modified date)

Thread-safe counters - Replaced HashMap with ConcurrentHashMap and AtomicInteger for thread safety
Memory-efficient keys - Using String keys instead of Chunk/Location objects to prevent memory leaks
Extracted time constants - Magic numbers replaced with named constants (TICKS_PER_HOUR, TICKS_PER_DAY, DAY_MS, ALERT_COOLDOWN_MS, BATCH_SIZE, FLUSH_INTERVAL_MS)
Cached config values - RedstoneListener now caches redstone materials, enabled worlds, and removal action for better performance
Refresh cache on reload - Cached values are automatically refreshed when config is reloaded
Reduced object allocation - Avoid creating Location objects in hot path; only create when actually needed for logging
Batched log writes - Log entries are buffered and flushed every 50 entries or 500ms instead of on every write
Improved log rotation - Log file size is now checked on every flush, not just during cleanup task
Primitive collections (fastutil) - Replaced ConcurrentHashMap<String, AtomicInteger> with Object2IntOpenHashMap to eliminate boxing overhead and reduce memory allocations

Bypass permission - Players with antiredstonelag.bypass permission can place redstone without limits
Block owner tracking - Tracks who placed redstone blocks for bypass permission checks
Configurable reset interval - New reset-interval-ticks config option (default: 20 ticks = 1 second)
Debug mode - New debug config option for verbose logging during troubleshooting
Config validation - Threshold values are now validated (must be positive)
Alert cooldown - 1 second cooldown between alerts to prevent spam when multiple blocks are removed
Persistent statistics - Statistics (totalRemovals, removalsToday) are saved to stats.yml and survive server restarts
Configurable removal action - New removal-action config option with three modes:
- REMOVE - Set block to air (default)
- DISABLE - Cancel redstone signal without removing block
- DROP - Break block and drop item
Warning system - Warns players when their redstone activity approaches the threshold
- Configurable warning threshold (default: 80% of limit)
- Per-player cooldown to prevent spam
- Only warns block owners who are online
Update checker - Automatically checks for new versions on SpigotMC
- Notifies admins with antiredstonelag.admin permission on join
- Non-blocking async check on startup
Whitelist mode - Only monitor specific chunks instead of all chunks
- Configure chunks as world:chunkX:chunkZ format
- Useful for monitoring only known problem areas

Real-time statistics - Stats command now displays actual monitored chunks, blocks, total removals, and daily removals
Better code structure - CommandHandler now receives CounterManager via dependency injection
Improved config comments - Better documentation in config.yml
Stats saved on shutdown - Statistics are automatically saved when the plugin is disabled
Null safety - Added null checks to CounterManager methods to prevent potential NPEs
JavaDoc comments - Added documentation to key methods