Send different message for not having enough items/money

src/main/java/com/alttd/playershops/config/ShopTypeConfig.java

@@ -55,6 +55,7 @@ public class ShopTypeConfig {
 
     public String playerInventoryFull = "<red>You do not have enough space in your inventory to buy from this shop.";
     public String playerNoFunds = "<red>You do not have sufficient funds to trade with this shop.";
+    public String playerNoItems = "<red>You do not have sufficient items to trade with this shop.";
     public String playerBought = "<white>You bought <amount> <item>(s) from <ownername> for <price>.";
     public String playerSold = "<white>You sold <amount> <item>(s) to <ownername> for <price>.";
     public String shopBought = "<white><user> sold <amount> <item>(s) to you for <price>.";
@@ -66,6 +67,9 @@ public class ShopTypeConfig {
     private void transactionMessages() {
         playerInventoryFull = getString("transaction.player-inventory-full", playerInventoryFull);
         playerNoFunds = getString("transaction.player-no-funds", playerNoFunds);
+        playerNoItems = getString("transaction.player-no-items", playerNoItems);
+        playerBought = getString("transaction.player-bought", playerBought);
+        playerSold = getString("transaction.player-sold", playerSold);
         shopInventoryFull = getString("transaction.shop-inventory-full", shopInventoryFull);
         shopNoStock = getString("transaction.shop-no-stock", shopNoStock);
         yourShopNoFunds = getString("transaction.your-shop-no-funds", yourShopNoFunds);

src/main/java/com/alttd/playershops/listener/TransactionListener.java

@@ -123,6 +123,9 @@ public class TransactionListener extends EventListener {
                 case INSUFFICIENT_FUNDS_PLAYER -> {
                     player.sendMiniMessage(shop.getType().getShopTypeConfig().playerNoFunds, placeholders);
                 }
+                case INSUFFICIENT_ITEMS_PLAYER -> {
+                    player.sendMiniMessage(shop.getType().getShopTypeConfig().playerNoItems, placeholders);
+                }
                 case INVENTORY_FULL_SHOP -> {
                     Player shopOwner = Bukkit.getPlayer(shop.getOwnerUUID());
                     if (shopOwner != null && notifyOwner(shop)) {

src/main/java/com/alttd/playershops/shop/PlayerShop.java

@@ -252,7 +252,7 @@ public class PlayerShop {
 
         int playerItems = InventoryUtils.countItems(player.getInventory(), itemStack);
         if (playerItems < itemStack.getAmount())
-            return TransactionError.INSUFFICIENT_FUNDS_PLAYER;
+            return TransactionError.INSUFFICIENT_ITEMS_PLAYER;
 
         boolean hasFunds = EconomyUtils.hasSufficientFunds(this, price);
         if (!hasFunds)

src/main/java/com/alttd/playershops/shop/TransactionError.java

@@ -4,6 +4,7 @@ public enum TransactionError {
     CANCELLED,
     INSUFFICIENT_FUNDS_SHOP,
     INSUFFICIENT_FUNDS_PLAYER,
+    INSUFFICIENT_ITEMS_PLAYER,
     INVENTORY_FULL_SHOP,
     INVENTORY_FULL_PLAYER,
     PLAYER_OFFLINE,