SMPSystem

✨ New Features

Clan System 🛡️

• Full clan system with create, disband, invite and leave functionality
• Role system: Leader, Officer, Member – with promotion & demotion
• Clan chat (/clan chat) exclusive to clan members
• MOTD (Message of the Day) settable per clan
• Clan tags (e.g. [ABC]) customizable by the leader
• GUI-based clan menu (/clan) with multiple screens:
  • Overview screen with clan info, MOTD, invite, chat and admin panel
  • Members screen with paginated player heads
  • Member management screen (kick, promote, demote)
  • Disband confirmation screen with safety prompt
• PlaceholderAPI integration: %smpsystem_clan_name%, %smpsystem_clan_tag%, %smpsystem_clan_role%, %smpsystem_clan_members%, and more
• Persistence via MySQL (HikariCP) or flat-file (clans.yml)
• Configurable: max members, max officers, name/tag length, invite timeout, creation cost

Auction House (AH) 💎

• Players can list items for sale with /ah sell <price>
• Clean 54-slot GUI (/ah) with paginated listings
• Purchase via left-click directly in the GUI with Vault economy integration
• Expired listings retrievable via /ah expired
• Own listings cancellable via /ah cancel <id>
• Listing fee and tax configurable
• Persistence via MySQL or flat-file (auction.yml)
• Configurable: fee, tax, listing duration, max listings per player, minimum price

MySQL / Database Support 🗄️

• HikariCP connection pool (5.1.0) integrated and shaded into the jar
• Automatic table creation on startup (smp_clans, smp_clan_members, smp_auction_items, etc.)
• Fully optional – falls back to flat-file when mysql.enabled: false

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🐛 Bugfixes

RTP System Fixed 🎯

• Fixed issue where players were not being teleported after executing the RTP command
• Removed problematic asynchronous chunk loading that caused race conditions
• Direct teleportation now works smoothly with automatic chunk loading
• Added proper error handling for teleportation failures

Sell System Fixed 💰

• Fixed critical bug where items were lost when clicking "Cancel" on the confirmation menu
• Items are now properly stored and returned to player inventory when canceling
• Complete ItemStack objects are preserved (enchantments, NBT data, etc.)
• Items correctly returned when closing GUI without clicking confirmation buttons
• Inventory management improved to prevent item duplication or loss

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🔧 Technical Improvements

Inventory Event Handling

• Fixed timing issue where onInventoryClose() was deleting stored items prematurely
• Separated close event handling for Sell-GUI and Confirmation-GUI
• Proper cleanup of saved ItemStacks only when appropriate

Code Quality

• Removed debug messages from production code
• Improved slot detection using getSlot() instead of getRawSlot() for consistency
• Better null checking and error prevention