Finishes the scrapper implementation

src/main/java/net/knarcraft/blacksmith/manager/EconomyManager.java

@@ -48,7 +48,17 @@ public class EconomyManager {
      * @return <p>Whether the player cannot pay for the reforge</p>
      */
     public static boolean cannotPayForHeldItemReforge(@NotNull Player player) {
-        return !(economy.getBalance(player) - getHeldItemCost(player) >= 0);
+        return economy.getBalance(player) - getHeldItemCost(player) < 0;
+    }
+
+    /**
+     * Gets whether the given player cannot pay for salvaging an item
+     *
+     * @param player <p>The player holding an item</p>
+     * @return <p>Whether the player cannot pay for the salvage</p>
+     */
+    public static boolean cannotPayForSalvage(@NotNull Player player) {
+        return economy.getBalance(player) - BlacksmithPlugin.getInstance().getGlobalScrapperSettings().getCost() < 0;
     }
 
     /**
@@ -57,11 +67,23 @@ public class EconomyManager {
      * @param player <p>The player holding an item</p>
      * @return <p>The formatted cost</p>
      */
-    public static String formatCost(@NotNull Player player) {
+    @NotNull
+    public static String formatBlacksmithCost(@NotNull Player player) {
         double cost = getHeldItemCost(player);
         return economy.format(cost);
     }
 
+    /**
+     * Gets the human-readable cost of salvaging an item
+     *
+     * @return <p>The formatted cost</p>
+     */
+    @NotNull
+    public static String formatScrapperCost() {
+        double cost = BlacksmithPlugin.getInstance().getGlobalScrapperSettings().getCost();
+        return economy.format(cost);
+    }
+
     /**
      * Withdraws the reforging cost from the given player
      *
@@ -69,8 +91,23 @@ public class EconomyManager {
      *
      * @param player <p>The player to withdraw from</p>
      */
-    public static void withdraw(@NotNull Player player) {
-        economy.withdrawPlayer(player, getHeldItemCost(player));
+    public static void withdrawBlacksmith(@NotNull Player player) {
+        double cost = getHeldItemCost(player);
+        if (cost > 0) {
+            economy.withdrawPlayer(player, cost);
+        }
+    }
+
+    /**
+     * Withdraws the salvaging cost from the given player
+     *
+     * @param player <p>The player to withdraw from</p>
+     */
+    public static void withdrawScrapper(Player player) {
+        double cost = BlacksmithPlugin.getInstance().getGlobalScrapperSettings().getCost();
+        if (cost > 0) {
+            economy.withdrawPlayer(player, cost);
+        }
     }
 
     /**