Lets generify some of this stuff

src/main/java/com/gmail/nossr50/config/ConfigManager.java

@@ -52,7 +52,7 @@ import com.gmail.nossr50.config.treasure.FishingTreasureConfig;
 import com.gmail.nossr50.config.treasure.HerbalismTreasureConfig;
 import com.gmail.nossr50.datatypes.experience.CustomXPPerk;
 import com.gmail.nossr50.datatypes.experience.FormulaType;
-import com.gmail.nossr50.datatypes.items.BukkitMMOItem;
+import com.gmail.nossr50.datatypes.items.ItemMatch;
 import com.gmail.nossr50.datatypes.items.ItemWildcards;
 import com.gmail.nossr50.datatypes.items.MMOItem;
 import com.gmail.nossr50.datatypes.party.PartyFeature;
@@ -70,7 +70,6 @@ import ninja.leaping.configurate.commented.CommentedConfigurationNode;
 import ninja.leaping.configurate.objectmapping.serialize.TypeSerializerCollection;
 import ninja.leaping.configurate.objectmapping.serialize.TypeSerializers;
 import org.bukkit.Material;
-import org.bukkit.inventory.ItemStack;
 
 import java.io.File;
 import java.util.ArrayList;
@@ -284,9 +283,10 @@ public final class ConfigManager {
         customSerializers.registerType(TypeToken.of(PlayerNotificationSettings.class), new PlayerNotificationSerializer());
         customSerializers.registerType(TypeToken.of(SoundSetting.class), new SoundSettingSerializer());
         customSerializers.registerType(TypeToken.of(ItemWildcards.class), new ItemWildcardSerializer());
-        customSerializers.registerType(TypeToken.of(RepairCost.class), new RepairCostSerializer());
+        customSerializers.registerType(TypeToken.of(ItemMatch.class), new CustomItemTargetSerializer());
         customSerializers.registerType(TypeToken.of(RepairTransaction.class), new RepairTransactionSerializer());
         customSerializers.registerType(TypeToken.of(RawNBT.class), new RawNBTSerializer());
+        customSerializers.registerType(TypeToken.of(RepairCost.class), new RepairCostSerializer());
     }
 
     /**

src/main/java/com/gmail/nossr50/config/hocon/serializers/CustomItemTargetSerializer.java

@@ -0,0 +1,43 @@
+package com.gmail.nossr50.config.hocon.serializers;
+
+import com.gmail.nossr50.datatypes.items.ItemMatch;
+import com.gmail.nossr50.datatypes.items.ItemMatchProperty;
+import com.gmail.nossr50.datatypes.items.MMOItem;
+import com.google.common.reflect.TypeToken;
+import ninja.leaping.configurate.ConfigurationNode;
+import ninja.leaping.configurate.ValueType;
+import ninja.leaping.configurate.objectmapping.ObjectMappingException;
+import ninja.leaping.configurate.objectmapping.serialize.TypeSerializer;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.checkerframework.checker.nullness.qual.Nullable;
+
+import java.util.HashSet;
+
+public class CustomItemTargetSerializer implements TypeSerializer<ItemMatch> {
+
+    private static final String ITEM_CONSUMED_FOR_REPAIR = "Item-Consumed-For-Repair";
+    private static final String NBT_REQUIREMENTS = "NBT-Requirements";
+
+    @Nullable
+    @Override
+    public ItemMatch deserialize(@NonNull TypeToken<?> type, @NonNull ConfigurationNode value) throws ObjectMappingException {
+        MMOItem<?> mmoItem = value.getNode(ITEM_CONSUMED_FOR_REPAIR).getValue(new TypeToken<MMOItem<?>>() {});
+        if(value.getNode(NBT_REQUIREMENTS).getValueType() != ValueType.NULL)
+        {
+            HashSet<ItemMatchProperty> itemMatchProperties = value.getNode(NBT_REQUIREMENTS).getValue(new TypeToken<HashSet<ItemMatchProperty>>() {});
+            return new ItemMatch(mmoItem, itemMatchProperties);
+        }
+
+        return new ItemMatch(mmoItem, null);
+    }
+
+    @Override
+    public void serialize(@NonNull TypeToken<?> type, @Nullable ItemMatch obj, @NonNull ConfigurationNode value) throws ObjectMappingException {
+        value.getNode(ITEM_CONSUMED_FOR_REPAIR).setValue(obj.getItem());
+
+        if(obj.getItemMatchProperties().size() > 0) {
+            value.getNode(NBT_REQUIREMENTS).setValue(obj.getItemMatchProperties());
+            SerializerUtil.addCommentIfCompatible(value.getNode(NBT_REQUIREMENTS), "List optional NBT that is required here, you write it the same way you do in vanilla commands.");
+        }
+    }
+}

src/main/java/com/gmail/nossr50/config/hocon/serializers/ItemWildcardSerializer.java

@@ -1,13 +1,12 @@
 package com.gmail.nossr50.config.hocon.serializers;
 
-import com.gmail.nossr50.datatypes.items.CustomItemTarget;
+import com.gmail.nossr50.datatypes.items.ItemMatch;
 import com.gmail.nossr50.datatypes.items.ItemWildcards;
 import com.google.common.reflect.TypeToken;
 import ninja.leaping.configurate.ConfigurationNode;
 import ninja.leaping.configurate.ValueType;
 import ninja.leaping.configurate.objectmapping.ObjectMappingException;
 import ninja.leaping.configurate.objectmapping.serialize.TypeSerializer;
-import org.bukkit.inventory.ItemStack;
 import org.checkerframework.checker.nullness.qual.NonNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
@@ -26,7 +25,7 @@ public class ItemWildcardSerializer implements TypeSerializer<ItemWildcards> {
         String wildCardName = value.getNode(WILDCARD_IDENTIFIER_NAME).getValue(TypeToken.of(String.class));
 
         if(value.getNode(WILDCARD_IDENTIFIER_NAME).getNode(MATCHING_ITEMS).getValueType() != ValueType.NULL) {
-            Set<CustomItemTarget> matchCandidates = value.getNode(WILDCARD_IDENTIFIER_NAME).getNode(MATCHING_ITEMS).getValue(new TypeToken<Set<CustomItemTarget>>() {});
+            Set<ItemMatch> matchCandidates = value.getNode(WILDCARD_IDENTIFIER_NAME).getNode(MATCHING_ITEMS).getValue(new TypeToken<Set<ItemMatch>>() {});
 
             return new ItemWildcards(wildCardName, new HashSet<>(matchCandidates));
         }

src/main/java/com/gmail/nossr50/config/hocon/serializers/RepairCostSerializer.java

@@ -1,22 +1,27 @@
 package com.gmail.nossr50.config.hocon.serializers;
 
+import com.gmail.nossr50.datatypes.items.ItemMatch;
 import com.gmail.nossr50.skills.repair.RepairCost;
+import com.gmail.nossr50.skills.repair.SimpleRepairCost;
 import com.google.common.reflect.TypeToken;
 import ninja.leaping.configurate.ConfigurationNode;
 import ninja.leaping.configurate.objectmapping.ObjectMappingException;
-import ninja.leaping.configurate.objectmapping.serialize.TypeSerializer;
 import org.checkerframework.checker.nullness.qual.NonNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
-public class RepairCostSerializer implements TypeSerializer<RepairCost> {
+public class RepairCostSerializer implements TypeSerializer<RepairCost<?>> {
+
+    private static final String TARGET_ITEM = "Target-Item";
+
     @Nullable
     @Override
-    public RepairCost deserialize(@NonNull TypeToken<?> type, @NonNull ConfigurationNode value) throws ObjectMappingException {
-        return null;
+    public RepairCost<?> deserialize(@NonNull TypeToken<?> type, @NonNull ConfigurationNode value) throws ObjectMappingException {
+        ItemMatch itemMatch = value.getNode(TARGET_ITEM).getValue(TypeToken.of(ItemMatch.class));
+        return new SimpleRepairCost(itemMatch);
     }
 
     @Override
-    public void serialize(@NonNull TypeToken<?> type, @Nullable RepairCost obj, @NonNull ConfigurationNode value) throws ObjectMappingException {
-
+    public void serialize(@NonNull TypeToken<?> type, @Nullable RepairCost<?> obj, @NonNull ConfigurationNode value) throws ObjectMappingException {
+        value.getNode(TARGET_ITEM).setValue(obj.getRepairCosts());
     }
 }

src/main/java/com/gmail/nossr50/config/hocon/serializers/RepairableSerializer.java

@@ -1,6 +1,6 @@
 package com.gmail.nossr50.config.hocon.serializers;
 
-import com.gmail.nossr50.datatypes.items.CustomItemTarget;
+import com.gmail.nossr50.datatypes.items.ItemMatch;
 import com.gmail.nossr50.datatypes.permissions.PermissionWrapper;
 import com.gmail.nossr50.skills.repair.RepairTransaction;
 import com.gmail.nossr50.skills.repair.repairables.Repairable;
@@ -8,11 +8,8 @@ import com.gmail.nossr50.skills.repair.repairables.RepairableBuilder;
 import com.google.common.reflect.TypeToken;
 import ninja.leaping.configurate.ConfigurationNode;
 import ninja.leaping.configurate.ValueType;
-import ninja.leaping.configurate.commented.CommentedConfigurationNode;
-import ninja.leaping.configurate.commented.SimpleCommentedConfigurationNode;
 import ninja.leaping.configurate.objectmapping.ObjectMappingException;
 import ninja.leaping.configurate.objectmapping.serialize.TypeSerializer;
-import org.bukkit.inventory.ItemStack;
 
 public class RepairableSerializer implements TypeSerializer<Repairable> {
     private static final String REPAIRABLE_ITEM = "Repairable-Item";
@@ -26,11 +23,11 @@ public class RepairableSerializer implements TypeSerializer<Repairable> {
     @Override
     public Repairable deserialize(TypeToken<?> type, ConfigurationNode value) throws ObjectMappingException {
         /* Necessary fields */
-        CustomItemTarget customItemTarget = value.getNode(REPAIRABLE_ITEM).getValue(TypeToken.of(CustomItemTarget.class));
+        ItemMatch itemMatch = value.getNode(REPAIRABLE_ITEM).getValue(TypeToken.of(ItemMatch.class));
         Short maximumDurability = value.getNode(MAXIMUM_DURABILITY).getValue(TypeToken.of(Short.class));
         RepairTransaction repairTransaction = value.getNode(ITEMS_REQUIRED_TO_REPAIR).getValue(TypeToken.of(RepairTransaction.class));
 
-        RepairableBuilder repairableBuilder = new RepairableBuilder(customItemTarget, maximumDurability, repairTransaction);
+        RepairableBuilder repairableBuilder = new RepairableBuilder(itemMatch, maximumDurability, repairTransaction);
 
         if(value.getNode(SKILL_LEVEL_REQUIRED_TO_REPAIR).getValueType() != ValueType.NULL) {
             repairableBuilder.addMinLevel(value.getNode(SKILL_LEVEL_REQUIRED_TO_REPAIR).getInt());
@@ -53,7 +50,7 @@ public class RepairableSerializer implements TypeSerializer<Repairable> {
 
     @Override
     public void serialize(TypeToken<?> type, Repairable obj, ConfigurationNode value) {
-        value.getNode(REPAIRABLE_ITEM).setValue(obj.getCustomItemTarget());
+        value.getNode(REPAIRABLE_ITEM).setValue(obj.getItemMatch());
         value.getNode(MAXIMUM_DURABILITY).setValue(obj.getMaximumDurability());
         value.getNode(ITEMS_REQUIRED_TO_REPAIR).setValue(obj.getRepairTransaction());
 

src/main/java/com/gmail/nossr50/datatypes/items/CustomItemMatching.java

@@ -1,13 +0,0 @@
-package com.gmail.nossr50.datatypes.items;
-
-public interface CustomItemMatching {
-
-    /**
-     * Determines whether or not an item matches this one
-     * Behaviours for matching can vary based on the implementation
-     * @param otherItem target item to compare itself to
-     * @return true if this item matches the target item
-     */
-    boolean isMatch(MMOItem otherItem);
-
-}

src/main/java/com/gmail/nossr50/datatypes/items/DefinedMatch.java

@@ -0,0 +1,19 @@
+package com.gmail.nossr50.datatypes.items;
+
+/**
+ * The interface Defined match.
+ *
+ * @param <T> the type parameter
+ */
+public interface DefinedMatch<T> {
+
+    /**
+     * Determines whether or not this object of type T matches certain criteria of another object of type T
+     * Behaviours for matching depend solely on the implementation of DefinedMatch
+     *
+     * @param other target item to compare itself to
+     * @return true if this item matches the target item
+     */
+    boolean isMatch(T other);
+
+}

src/main/java/com/gmail/nossr50/datatypes/items/CustomItemTarget.java → src/main/java/com/gmail/nossr50/datatypes/items/ItemMatch.java

@@ -26,17 +26,17 @@ import java.util.Objects;
  * 1) Abstract away platform specific implementations of MC Items
  * 2) Contain information about an item and which properties of said item that are considered important and thus will be used to equate equivalency to another item when doing comparisons
  */
-public class CustomItemTarget implements CustomItemMatching {
+public class ItemMatch<T extends MMOItem<?>> implements DefinedMatch<T> {
 
-    private MMOItem item; //Abstract representation of the item
+    private T item; //Abstract representation of the item
     private HashSet<ItemMatchProperty> itemMatchProperties; //Item properties used for matching
 
-    public CustomItemTarget(MMOItem item) {
+    public ItemMatch(T item) {
         this.item = item;
         itemMatchProperties = new HashSet<>();
     }
 
-    public CustomItemTarget(MMOItem item, HashSet<ItemMatchProperty> itemMatchProperties) {
+    public ItemMatch(T item, HashSet<ItemMatchProperty> itemMatchProperties) {
         this.item = item;
         this.itemMatchProperties = itemMatchProperties;
     }
@@ -56,7 +56,7 @@ public class CustomItemTarget implements CustomItemMatching {
      * @return true if this item matches the target item
      */
     @Override
-    public boolean isMatch(MMOItem otherItem) {
+    public boolean isMatch(T otherItem) {
         if(hasStrictMatching()) {
             return isStrictMatch(otherItem);
         } else {
@@ -69,7 +69,7 @@ public class CustomItemTarget implements CustomItemMatching {
      * @param otherItem item to strictly match
      * @return true if the items are considered a match
      */
-    private boolean isStrictMatch(MMOItem otherItem) {
+    private boolean isStrictMatch(T otherItem) {
         for(ItemMatchProperty itemMatchProperty : itemMatchProperties) {
             if(!mcMMO.getNbtManager().hasNBT(otherItem.getRawNBT().getNbtData(), itemMatchProperty.getNbtData())) {
                 return false;
@@ -106,10 +106,10 @@ public class CustomItemTarget implements CustomItemMatching {
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;
-        if (!(o instanceof CustomItemTarget)) return false;
-        CustomItemTarget that = (CustomItemTarget) o;
-        return getItem().equals(that.getItem()) &&
-                getItemMatchProperties().equals(that.getItemMatchProperties());
+        if (!(o instanceof ItemMatch)) return false;
+        ItemMatch<?> itemMatch = (ItemMatch<?>) o;
+        return getItem().equals(itemMatch.getItem()) &&
+                getItemMatchProperties().equals(itemMatch.getItemMatchProperties());
     }
 
     @Override

src/main/java/com/gmail/nossr50/datatypes/items/ItemWildcards.java

@@ -1,7 +1,5 @@
 package com.gmail.nossr50.datatypes.items;
 
-import org.bukkit.inventory.ItemStack;
-
 import java.util.HashSet;
 import java.util.Objects;
 
@@ -19,12 +17,13 @@ import java.util.Objects;
  *  to solve a problem with Repair. Given its flexible nature it can be used for many purposes.
  *
  */
-public class ItemWildcards {
+public class ItemWildcards<T extends MMOItem<?>> {
 
     private String wildcardName;
-    private HashSet<CustomItemTarget> itemTargets;
+    private HashSet<ItemMatch<T>> itemTargets;
 
-    public ItemWildcards(String wildcardName, HashSet<CustomItemTarget> itemTargets) {
+    public ItemWildcards(String wildcardName, HashSet<ItemMatch<T>> itemTargets) {
+        super();
         this.wildcardName = wildcardName;
         this.itemTargets = itemTargets;
     }
@@ -33,11 +32,11 @@ public class ItemWildcards {
         return itemTargets.size();
     }
 
-    public HashSet<CustomItemTarget> getItemTargets() {
+    public HashSet<ItemMatch<T>> getItemTargets() {
         return itemTargets;
     }
 
-    public void setItemTargets(HashSet<CustomItemTarget> itemTargets) {
+    public void setItemTargets(HashSet<ItemMatch<T>> itemTargets) {
         this.itemTargets = itemTargets;
     }
 

src/main/java/com/gmail/nossr50/skills/repair/RepairCost.java

@@ -8,6 +8,7 @@ import org.bukkit.inventory.PlayerInventory;
  */
 public interface RepairCost {
 
+
     /**
      * Searches a player inventory for a matching ItemStack that can be used to pay for the repair transaction
      * @param playerInventory inventory of player attempting to pay the cost

src/main/java/com/gmail/nossr50/skills/repair/RepairTransaction.java

@@ -22,8 +22,8 @@ import java.util.HashSet;
 public class RepairTransaction {
     private HashSet<RepairCost> repairCosts;
 
-    public RepairTransaction() {
-        repairCosts = new HashSet<>();
+    public RepairTransaction(HashSet<RepairCost> repairCosts) {
+        this.repairCosts = repairCosts;
     }
 
     public void addRepairCost(RepairCost repairCost) {

src/main/java/com/gmail/nossr50/skills/repair/SimpleRepairCost.java

@@ -1,11 +1,13 @@
 package com.gmail.nossr50.skills.repair;
 
 import com.gmail.nossr50.datatypes.items.BukkitMMOItem;
-import com.gmail.nossr50.datatypes.items.CustomItemTarget;
+import com.gmail.nossr50.datatypes.items.ItemMatch;
 import org.bukkit.Material;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.PlayerInventory;
 
+import java.util.List;
+
 /**
  * Implementation of RepairCost
  *
@@ -15,12 +17,12 @@ import org.bukkit.inventory.PlayerInventory;
  * This type is strictly for use with RepairTransaction, which represents the full cost of a Repair.
  * @see com.gmail.nossr50.skills.repair.RepairTransaction for more details
  */
-public class SimpleRepairCost implements RepairCost {
+public class SimpleRepairCost<T extends ItemMatch> implements RepairCost {
 
-    private CustomItemTarget desiredItemTarget;
+    private T itemMatch;
 
-    public SimpleRepairCost(CustomItemTarget customItemTarget) {
-        this.desiredItemTarget = customItemTarget;
+    public SimpleRepairCost(T customItemTarget) {
+        this.itemMatch = customItemTarget;
     }
 
     @Override
@@ -31,14 +33,31 @@ public class SimpleRepairCost implements RepairCost {
 
             BukkitMMOItem playerInventoryItem = new BukkitMMOItem(itemStack);
 
+            //TODO:
+            //TODO:
+            //TODO:
+            //TODO:
+            //TODO: Write the code that compares playerInventoryItem with the <T extends itemMatch>
+            //TODO:
+            //TODO:
+            //TODO:
+            //TODO:
+            //TODO:
+            //TODO:
+            //TODO:
+
             //If the item matches return it
-            if(desiredItemTarget.isMatch(playerInventoryItem))
+            if(itemMatch.isMatch(playerInventoryItem))
                 return itemStack;
         }
 
         return null;
     }
 
+    public ItemMatch getItemMatch() {
+        return itemMatch;
+    }
+
     @Override
     public boolean hasPayment(PlayerInventory playerInventory) {
         return findPayment(playerInventory) != null;

src/main/java/com/gmail/nossr50/skills/repair/repairables/Repairable.java

@@ -1,27 +1,25 @@
 package com.gmail.nossr50.skills.repair.repairables;
 
-import com.gmail.nossr50.datatypes.items.CustomItemTarget;
+import com.gmail.nossr50.datatypes.items.ItemMatch;
 import com.gmail.nossr50.datatypes.permissions.PermissionWrapper;
 import com.gmail.nossr50.skills.repair.RepairTransaction;
-import com.gmail.nossr50.util.nbt.RawNBT;
-import org.bukkit.inventory.ItemStack;
 
 public class Repairable {
     private int minimumLevel;
     private short maximumDurability;
     private RepairTransaction repairTransaction;
     private int baseXP;
-    private CustomItemTarget customItemTarget;
+    private ItemMatch itemMatch;
     private int repairCount;
     private PermissionWrapper permissionWrapper;
     private boolean hasPermission = false;
 
-    public Repairable(CustomItemTarget customItemTarget, int minimumLevel, short maximumDurability, RepairTransaction repairTransaction, int baseXP, int repairCount, PermissionWrapper permissionWrapper) {
+    public Repairable(ItemMatch itemMatch, int minimumLevel, short maximumDurability, RepairTransaction repairTransaction, int baseXP, int repairCount, PermissionWrapper permissionWrapper) {
         this.minimumLevel = minimumLevel;
         this.maximumDurability = maximumDurability;
         this.repairTransaction = repairTransaction;
         this.baseXP = baseXP;
-        this.customItemTarget = customItemTarget;
+        this.itemMatch = itemMatch;
         this.repairCount = repairCount;
         this.permissionWrapper = permissionWrapper;
 
@@ -61,12 +59,12 @@ public class Repairable {
         this.baseXP = baseXP;
     }
 
-    public CustomItemTarget getCustomItemTarget() {
-        return customItemTarget;
+    public ItemMatch getItemMatch() {
+        return itemMatch;
     }
 
-    public void setCustomItemTarget(CustomItemTarget customItemTarget) {
-        this.customItemTarget = customItemTarget;
+    public void setItemMatch(ItemMatch itemMatch) {
+        this.itemMatch = itemMatch;
     }
 
     public int getRepairCount() {

src/main/java/com/gmail/nossr50/skills/repair/repairables/RepairableBuilder.java

@@ -1,10 +1,8 @@
 package com.gmail.nossr50.skills.repair.repairables;
 
-import com.gmail.nossr50.datatypes.items.CustomItemTarget;
+import com.gmail.nossr50.datatypes.items.ItemMatch;
 import com.gmail.nossr50.datatypes.permissions.PermissionWrapper;
 import com.gmail.nossr50.skills.repair.RepairTransaction;
-import com.gmail.nossr50.util.nbt.RawNBT;
-import org.bukkit.inventory.ItemStack;
 
 public class RepairableBuilder {
 
@@ -12,12 +10,12 @@ public class RepairableBuilder {
     private short maximumDurability;
     private RepairTransaction repairTransaction;
     private int baseXP;
-    private CustomItemTarget customItemTarget;
+    private ItemMatch itemMatch;
     private int repairCount;
     private PermissionWrapper permissionWrapper;
 
-    public RepairableBuilder(CustomItemTarget customItemTarget, Short maximumDurability, RepairTransaction repairTransaction) {
-        this.customItemTarget = customItemTarget;
+    public RepairableBuilder(ItemMatch itemMatch, Short maximumDurability, RepairTransaction repairTransaction) {
+        this.itemMatch = itemMatch;
         this.maximumDurability = maximumDurability;
         this.repairTransaction = repairTransaction;
     }
@@ -57,7 +55,7 @@ public class RepairableBuilder {
     }
 
     private Repairable makeRepairable() {
-        Repairable repairable = new Repairable(customItemTarget, minimumLevel, maximumDurability, repairTransaction,
+        Repairable repairable = new Repairable(itemMatch, minimumLevel, maximumDurability, repairTransaction,
                 baseXP, repairCount, permissionWrapper);
 
         return repairable;