GUIShop

Add support for lingering potions across code and docs, bump version to 9.4.3c, and improve potion handling and logging. Key changes:

• Introduce lingering field in PotionInfo (constructor, getter/setter) and include it in serialization/PDC.
• Parse old/new potion config formats (backwards compatible with 4-value PDC) and add config/docs for lingering in dev-bukkit, modrinth, spigot.bbcode, and wiki.
• Map multiple potion name aliases (e.g. INSTANT_HEAL/HEALTH -> HEALING, INSTANT_DAMAGE/DAMAGE -> HARMING, JUMP_BOOST -> LEAPING, INCREASE_DAMAGE -> STRENGTH) and adapt to 1.20.5+ names.
• Ensure correct item material selection for potions (POTION, SPLASH_POTION, LINGERING_POTION) and include lingering checks when matching/creating potion ItemStacks.
• Register sellable items even if out-of-bounds for GUI display (so 'worth' shops can sell without display slots) and fix ITEMTABLE lookup to use the actual material key; add defensive logging for registration and lookup fallbacks.
• Add extensive debug/logging in Item, Sell, Shop, WorthDisplayManager to aid troubleshooting of potion resolution, matching, registration and finds.
• Bump Maven version to 9.4.3c.

These changes add lingering potion capability, improve backwards compatibility and alias handling, and make item registration/lookup and troubleshooting more robust.

FIXED:

• Some base classes from XSeries were missing during the shading process. Found the ones we needed, and shaded those ONLY.

HOT FIXED:

• Transaction UI not supporting smaller stacks of items, now will intelligently resize automatically.

Bump version to 9.4.3 and introduce permission checks and UI/UX improvements. Changes include:

• pom.xml: version bumped to 9.4.3
• ItemActionHandler: check guishop.shop. and guishop.shop.* permissions (with OP bypass) and send no-permission message.
• Menu & Shop: unify how player-balance display name and lore are selected (prefer 'name' then 'shop-name'; 'lore' then 'shop-lore'), build a proper player head with owning player, set PDC keys for GUI elements and add editor mode hints.
• Shop: add refreshDynamicPrices() to efficiently update dynamic pricing lore/itemstacks without rebuilding the whole GUI, and openAtPage(player, page) helper to open to a specific page.
• Quantity & TransactionGui: remember the page the player opened from (returnPage) and, when returning/backing out, refresh dynamic prices and open the shop at the original page instead of a full reload.
• Fixed PLAYER_BALANCE items not correctly reading the lore or name from configs

Introduce a dynamic pricing subsystem and integrate it across configs, UI and docs. Key changes: create dynamicpricing.yml (auto-created on init) and load its enabled flag from ConfigManager; update TransactionGui to refresh prices after transactions; extend ItemType to treat SHOP/ITEM/COMMAND as purchasable and adjust editor/shop deserialization/auto-conversion logic; add market/admin commands/docs and marketplace persistence notes; auto-blacklist GUIShop inventories from worth display; refactor SkullCreator to use URI and remove authlib usage; simplify NBT extraction fallback in GuishopCommand; add paperweight manifest entry and adjust maven-shade settings to avoid Paper PluginRemapper; remove obsolete .mojang-mapped resource and bump project version to 9.4.2; update documentation and examples to include SHOP_SHORTCUT and other new/clarified item types. Fixed bugs hiding the showing of buy/selling lore, and prices not refreshing with dynamic pricing enabled.

ADDED:

• Sell Chest/Sell Inventory capability via GUIShop API
• Introduce per-item override support for dynamic pricing
• Introduce ItemType.isPurchasable() as to fix cannot buy and sell lores

FIXED:

• Stack trace when players open regular chests on Folia. Made thread safe.

ADDED:

• 'rows' config option for each shop.

Fix command item placeholders and add sudo mode

• Fix {PLAYER_NAME}, {PLAYER_UUID}, {PLAYER_WORLD}, {PLAYER_BALANCE} not being replaced in COMMAND items
• Add sudo: true/false config option to run commands as player instead of console
• Add sudo toggle button in Item Editor GUI
• Add PDCUtil.KEY_SUDO for editor state persistence
• Create Command-Items.md wiki page with full placeholder documentation
• Update spigot.bbcode, modrinth.md, dev-bukkit.html with command item details
• Add build-time placeholder processing for docs (target/processed-docs/)
• Add configurable variables in pom.xml: mc.version.min/max, supported.platforms, etc.

FIXES:

• Item Type "COMMAND" no longer triggering due to new transaction UI

Add Built-in Dynamic Pricing System

Dynamic Pricing:

• Added built-in supply/demand pricing system that works out of the box
• Prices increase when items are bought (supply decreases)
• Prices decrease when items are sold (supply increases)
• Prices gradually normalize back to base values over time
• External plugins can still override via DynamicPriceProvider API

Configuration:

• Created dynamicpricing.yml for all dynamic pricing settings
• Simplified config.yml to just dynamic-pricing: true/false
• Added per-item dynamic: false config key to exempt specific items

Admin Commands:

• /gs market status - View dynamic pricing system status
• /gs market info - Check an item's current market status
• /gs market reset - Reset an item to base price
• /gs market resetall - Reset all items to base prices
• Added tab completion for all market commands

Help and Tab Completion:

• Added eco and market commands to /gs help output
• Added tab completion for /gs market subcommands
• Added material name suggestions for /gs market info/reset

Documentation:

• Created wiki/Dynamic-Pricing.md with full documentation
• Updated wiki/Commands-and-Permissions.md with market commands
• Updated wiki/API-Documentation.md with Dynamic Pricing API
• Updated spigot.bbcode, modrinth.md, and dev-bukkit.html

Technical:

• Added DynamicPricingManager class with SQLite persistence
• Added shouldUseDynamicPricing() convenience method on Item
• Data stored in plugins/GUIShop/Data/dynamic_pricing.db
• Added dynamicpricing.yml to pom.xml resources

FIXED:

• No longer will register economy commands if internal-economy is disabled

ADDED:

• New shops folder with each shop broken into its own YML. Supports auto converting old shops.yml
• Unified Transaction GUI, replaces old Quantity Menu
• Fully configurable player_balance item type
• Fully configurable pagination and back buttons
• Creating new pages using gs edit
• Tab completion for gs commands
• Better Default configs
• /gs edit transaction command to edit transaction UI

FIXES:

• Better handling of pagination in editor mode
• Not able to configure balance or pagination buttons
• Cursor reset when entering a shop
• Enhanced the global Item Action Handler
• Adding item with a missing target-shop creates the new target shop config
• Enhanced Item Editor UI

FIXED:

• Alt Sell menu not working correctly
• Items not being able to stack on top of each other once purchased

Massive thanks to @JakeWalter for these fixes!

ADDED:

• Folia Support
• GuiShopAPI and StatisticsManager to retrieve sold and bought items, most sold and bought item types
• /togglepay Command - Toggle payment notifications
• Internal Economy option, added economy.yml with various economy settings
• Cursor rules to help jumpstart newer developers
• Support for ASCII/Unicode chars in inventory title of worth lore blacklist

Fixed:

• Alt Sell Menu (thanks to Jake Walter)
• Artifact output folder
• WorthDisplay not removing armor lore

ADDED:

• Brand new GUI Based Editor for menu & shops.
• Worth Lore Blacklist options
• Packet based inventory refreshing
• Creative Mode worth lore support
• GuiShop ItemInfo Command: /gs iteminfo

FIXED:

• Worth lore not working on all armor indices in the packet
• Cursor resetting when going back to previous inventory
• Desynced items spawned by Creative GUI
• Creator mode showing lore lines in regular shop mode