Added custom anvil recipe api & builder.

Fixed Conflict not being registered.
Build conflict on the builder instance instead of the ConflictAPI class.

src/main/java/xyz/alexcrea/cuanvil/api/AnvilRecipeBuilder.java

@@ -0,0 +1,205 @@
+package xyz.alexcrea.cuanvil.api;
+
+import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+import xyz.alexcrea.cuanvil.recipe.AnvilCustomRecipe;
+
+/**
+ * A Builder for custom craft using anvil.
+ */
+@SuppressWarnings("unused")
+public class AnvilRecipeBuilder {
+
+    private @NotNull String name;
+    private boolean exactCount;
+
+    private int xpCostPerCraft;
+
+    private @Nullable ItemStack leftItem;
+    private @Nullable ItemStack rightItem;
+    private @Nullable ItemStack resultItem;
+
+    /**
+     * Instantiates a new Anvil recipe builder.
+     * exact count default to true.
+     * xp cost per craft default to 1.
+     *
+     * @param name The recipe name
+     */
+    public AnvilRecipeBuilder(@NotNull String name) {
+        this.name = name;
+
+        this.exactCount = true;
+        this.xpCostPerCraft = 1;
+
+        this.leftItem = null;
+        this.rightItem = null;
+        this.resultItem = null;
+    }
+
+    /**
+     * Gets the recipe name.
+     *
+     * @return This recipe builder instance.
+     */
+    @NotNull
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * Sets the recipe name.
+     *
+     * @param name The recipe name
+     * @return This recipe builder instance.
+     */
+    public AnvilRecipeBuilder setName(String name) {
+        this.name = name;
+        return this;
+    }
+
+    /**
+     * Get if the recipe is exact count.
+     * <p>
+     * Exact count mean the recipe can only be crafted 1 by 1.
+     * If set to false, then it will craft as much as possible in 1 go and will keep unused material onto the anvil inventory.
+     *
+     * @return If the recipe is exact count.
+     */
+    public boolean isExactCount() {
+        return exactCount;
+    }
+
+    /**
+     * Sets if the recipe is exact count.
+     * <p>
+     * Exact count mean the recipe can only be crafted 1 by 1.
+     * If set to false, then it will craft as much as possible in 1 go and will keep unused material onto the anvil inventory.
+     *
+     * @param exactCount If the recipe is exact count
+     * @return This recipe builder instance.
+     */
+    public AnvilRecipeBuilder setExactCount(boolean exactCount) {
+        this.exactCount = exactCount;
+        return this;
+    }
+
+    /**
+     * Get the xp level cost per craft.
+     *
+     * @return The xp level cost per craft
+     */
+    public int getXpCostPerCraft() {
+        return xpCostPerCraft;
+    }
+
+    /**
+     * Sets the xp level cost per craft.
+     *
+     * @param xpCostPerCraft The xp level cost per craft
+     * @return This recipe builder instance.
+     */
+    public AnvilRecipeBuilder setXpCostPerCraft(int xpCostPerCraft) {
+        this.xpCostPerCraft = xpCostPerCraft;
+        return this;
+    }
+
+    /**
+     * Get the left item of the recipe.
+     * If null (default) then the recipe will not be able to be registered.
+     *
+     * @return The left item
+     */
+    @Nullable
+    public ItemStack getLeftItem() {
+        return leftItem;
+    }
+
+    /**
+     * Set the left item.
+     * If null (default) then the recipe will not be able to be registered.
+     *
+     * @param leftItem the left item
+     * @return This recipe builder instance.
+     */
+    public AnvilRecipeBuilder setLeftItem(ItemStack leftItem) {
+        this.leftItem = leftItem;
+        return this;
+    }
+
+    /**
+     * Get the recipe right item.
+     * null on default new instance.
+     *
+     * @return The right item
+     */
+    @Nullable
+    public ItemStack getRightItem() {
+        return rightItem;
+    }
+
+    /**
+     * Set the recipe right item.
+     * null on default new instance.
+     *
+     * @param rightItem the right item
+     * @return This recipe builder instance.
+     */
+    public AnvilRecipeBuilder setRightItem(ItemStack rightItem) {
+        this.rightItem = rightItem;
+        return this;
+    }
+
+    /**
+     * Get the recipe result item.
+     * If null (default) then the recipe will not be able to be registered.
+     *
+     * @return The result item
+     */
+    @Nullable
+    public ItemStack getResultItem() {
+        return resultItem;
+    }
+
+    /**
+     * Set the recipe result item.
+     * If null (default) then the recipe will not be able to be registered.
+     *
+     * @param resultItem The result item
+     * @return This recipe builder instance.
+     */
+    public AnvilRecipeBuilder setResultItem(ItemStack resultItem) {
+        this.resultItem = resultItem;
+        return this;
+    }
+
+    /**
+     * Build the anvil custom recipe.
+     * Should probably use {@link #registerIfAbsent() registerIfAbsent} or {@link ConflictAPI#addConflict(ConflictBuilder) addConflict}.
+     *
+     * @return A new anvil custom recipe base on this builder.
+     */
+    @Nullable // null if missing argument
+    public AnvilCustomRecipe build() {
+        if(leftItem == null || rightItem == null) return null;
+
+        return new AnvilCustomRecipe(
+                this.name,
+                this.exactCount,
+                this.xpCostPerCraft,
+                this.leftItem, this.rightItem, this.resultItem
+        );
+    }
+
+    /**
+     * Register this recipe if absent.
+     * Equivalent to {@link ConflictAPI#addConflict(ConflictBuilder)}
+     *
+     * @return True if successful.
+     */
+    public boolean registerIfAbsent(){
+        return CustomAnvilRecipeApi.addRecipe(this);
+    }
+
+}

src/main/java/xyz/alexcrea/cuanvil/api/ConflictAPI.java

@@ -5,10 +5,8 @@ import org.bukkit.Bukkit;
 import org.bukkit.NamespacedKey;
 import org.bukkit.configuration.file.FileConfiguration;
 import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
 import xyz.alexcrea.cuanvil.config.ConfigHolder;
-import xyz.alexcrea.cuanvil.enchant.CAEnchantment;
-import xyz.alexcrea.cuanvil.group.*;
+import xyz.alexcrea.cuanvil.group.EnchantConflictGroup;
 import xyz.alexcrea.cuanvil.gui.config.global.EnchantConflictGui;
 
 import java.util.Collections;
@@ -31,7 +29,7 @@ public class ConflictAPI {
      * Write and add a conflict.
      * Will not write the conflict if it already exists.
      *
-     * @param builder The conflict builder to base on
+     * @param builder The conflict builder to be based on
      * @return True if successful.
      */
     public static boolean addConflict(@NotNull ConflictBuilder builder){
@@ -40,75 +38,17 @@ public class ConflictAPI {
 
         if(!writeConflict(builder, false)) return false;
 
-        AbstractMaterialGroup materials = extractGroup(builder);
-        EnchantConflictGroup conflict = new EnchantConflictGroup(builder.getName(), materials, builder.getMaxBeforeConflict());
-        appendEnchantments(builder, conflict);
+        EnchantConflictGroup conflict = builder.build();
 
+        // Register conflict
+        ConfigHolder.CONFLICT_HOLDER.getConflictManager().getConflictList().add(conflict);
+
+        // Add conflict to gui
         EnchantConflictGui.INSTANCE.updateValueForGeneric(conflict, true);
 
         return true;
     }
 
-    /**
-     * Append builders stored enchantments into conflict.
-     *
-     * @param builder  The builder source
-     * @param conflict The conflict target
-     */
-    protected static void appendEnchantments(@NotNull ConflictBuilder builder, @NotNull EnchantConflictGroup conflict){
-        for (String enchantmentName : builder.getEnchantmentNames()){
-            if(appendEnchantment(conflict, EnchantmentApi.getByName(enchantmentName))){
-                CustomAnvil.instance.getLogger().warning("Could not find enchantment " + enchantmentName + " for conflict " + builder.getName());
-                logConflictOrigin(builder);
-            }
-        }
-        for (NamespacedKey enchantmentKey : builder.getEnchantmentKeys()){
-            if(!appendEnchantment(conflict, EnchantmentApi.getByKey(enchantmentKey))){
-                CustomAnvil.instance.getLogger().warning("Could not find enchantment " + enchantmentKey + " for conflict " + builder.getName());
-                logConflictOrigin(builder);
-            }
-        }
-    }
-
-    /**
-     * Append an enchantment.
-     *
-     * @param conflict    The conflict target
-     * @param enchantment The enchantment
-     * @return True if successful.
-     */
-    protected static boolean appendEnchantment(@NotNull EnchantConflictGroup conflict, @Nullable CAEnchantment enchantment){
-        if(enchantment == null)
-            return false;
-        conflict.addEnchantment(enchantment);
-        return true;
-    }
-
-    /**
-     * Extract group abstract material group.
-     *
-     * @param builder The builder source
-     * @return The abstract material group from the builder.
-     */
-    protected static AbstractMaterialGroup extractGroup(@NotNull ConflictBuilder builder){
-        ItemGroupManager itemGroupManager = ConfigHolder.ITEM_GROUP_HOLDER.getItemGroupsManager();
-        IncludeGroup group = new IncludeGroup(EnchantConflictManager.DEFAULT_GROUP_NAME);
-
-        for (String groupName : builder.getExcludedGroupNames()) {
-            AbstractMaterialGroup materialGroup = itemGroupManager.get(groupName);
-
-            if(materialGroup == null){
-                CustomAnvil.instance.getLogger().warning("Material group " + groupName + " do not exist but is ask by conflict " + builder.getName());
-                logConflictOrigin(builder);
-                continue;
-            }
-
-            group.addToPolicy(materialGroup);
-        }
-
-        return group;
-    }
-
     /**
      * Write a conflict to the config file and plan an update of conflicts.
      * <p>
@@ -135,7 +75,7 @@ public class ConflictAPI {
 
         String name = builder.getName();
         if(name.contains(".")) {
-            CustomAnvil.instance.getLogger().warning("Conflict " + name +" contain . in its name but should not. this conflict is ignored.");
+            CustomAnvil.instance.getLogger().warning("Conflict " + name +" contain \".\" in its name but should not. this conflict is ignored.");
             logConflictOrigin(builder);
             return false;
         }
@@ -170,8 +110,9 @@ public class ConflictAPI {
         return result;
     }
 
+
     /**
-     * Prepare a task to reload every conflict.
+     * Prepare a task to save conflict configuration.
      */
     private static void prepareSaveTask() {
         if(saveChangeTask != -1) return;
@@ -183,7 +124,7 @@ public class ConflictAPI {
     }
 
     /**
-     * Prepare a task to save configuration.
+     * Prepare a task to reload every conflict.
      */
     private static void prepareUpdateTask() {
         if(reloadChangeTask != -1) return;
@@ -196,7 +137,7 @@ public class ConflictAPI {
 
     }
 
-    private static void logConflictOrigin(@NotNull ConflictBuilder builder){
+    static void logConflictOrigin(@NotNull ConflictBuilder builder){
         CustomAnvil.instance.getLogger().warning("Conflict " + builder.getName() +" came from " + builder.getSourceName() + ".");
     }
 

src/main/java/xyz/alexcrea/cuanvil/api/ConflictBuilder.java

@@ -1,11 +1,13 @@
 package xyz.alexcrea.cuanvil.api;
 
+import io.delilaheve.CustomAnvil;
 import org.bukkit.NamespacedKey;
 import org.bukkit.plugin.Plugin;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
+import xyz.alexcrea.cuanvil.config.ConfigHolder;
 import xyz.alexcrea.cuanvil.enchant.CAEnchantment;
-import xyz.alexcrea.cuanvil.group.AbstractMaterialGroup;
+import xyz.alexcrea.cuanvil.group.*;
 
 import java.util.HashSet;
 import java.util.Set;
@@ -342,9 +344,20 @@ public class ConflictBuilder {
 
         return clone;
     }
+    /**
+     * Build a new Enchant conflict group by this builder.
+     * @return An Enchant conflict group with this builder parameters.
+     */
+    public EnchantConflictGroup build(){
+        AbstractMaterialGroup materials = extractGroups();
+        EnchantConflictGroup conflict = new EnchantConflictGroup(getName(), materials, getMaxBeforeConflict());
+        appendEnchantments(conflict);
+
+        return conflict;
+    }
 
     /**
-     * Register this conflict.
+     * Register this conflict if not yet registered.
      * Equivalent to {@link ConflictAPI#addConflict(ConflictBuilder)}
      * @return True if successful.
      */
@@ -352,4 +365,62 @@ public class ConflictBuilder {
         return ConflictAPI.addConflict(this);
     }
 
+    /**
+     * Append builders stored enchantments into conflict.
+     *
+     * @param conflict The conflict target
+     */
+    protected void appendEnchantments(@NotNull EnchantConflictGroup conflict){
+        for (String enchantmentName : getEnchantmentNames()){
+            if(appendEnchantment(conflict, EnchantmentApi.getByName(enchantmentName))){
+                CustomAnvil.instance.getLogger().warning("Could not find enchantment " + enchantmentName + " for conflict " + getName());
+                ConflictAPI.logConflictOrigin(this);
+            }
+        }
+        for (NamespacedKey enchantmentKey : getEnchantmentKeys()){
+            if(!appendEnchantment(conflict, EnchantmentApi.getByKey(enchantmentKey))){
+                CustomAnvil.instance.getLogger().warning("Could not find enchantment " + enchantmentKey + " for conflict " + getName());
+                ConflictAPI.logConflictOrigin(this);
+            }
+        }
+    }
+
+    /**
+     * Append an enchantment.
+     *
+     * @param conflict    The conflict target
+     * @param enchantment The enchantment
+     * @return True if successful.
+     */
+    protected static boolean appendEnchantment(@NotNull EnchantConflictGroup conflict, @Nullable CAEnchantment enchantment){
+        if(enchantment == null)
+            return false;
+        conflict.addEnchantment(enchantment);
+        return true;
+    }
+
+    /**
+     * Extract group abstract material group.
+     *
+     * @return The abstract material group from the builder.
+     */
+    protected AbstractMaterialGroup extractGroups(){
+        ItemGroupManager itemGroupManager = ConfigHolder.ITEM_GROUP_HOLDER.getItemGroupsManager();
+        IncludeGroup group = new IncludeGroup(EnchantConflictManager.DEFAULT_GROUP_NAME);
+
+        for (String groupName : getExcludedGroupNames()) {
+            AbstractMaterialGroup materialGroup = itemGroupManager.get(groupName);
+
+            if(materialGroup == null){
+                CustomAnvil.instance.getLogger().warning("Material group " + groupName + " do not exist but is ask by conflict " + getName());
+                ConflictAPI.logConflictOrigin(this);
+                continue;
+            }
+
+            group.addToPolicy(materialGroup);
+        }
+
+        return group;
+    }
+
 }

src/main/java/xyz/alexcrea/cuanvil/api/CustomAnvilRecipeApi.java

@@ -0,0 +1,82 @@
+package xyz.alexcrea.cuanvil.api;
+
+import io.delilaheve.CustomAnvil;
+import org.bukkit.Bukkit;
+import org.bukkit.configuration.file.FileConfiguration;
+import org.jetbrains.annotations.NotNull;
+import xyz.alexcrea.cuanvil.config.ConfigHolder;
+import xyz.alexcrea.cuanvil.gui.config.global.CustomRecipeConfigGui;
+import xyz.alexcrea.cuanvil.recipe.AnvilCustomRecipe;
+
+import java.util.Collections;
+import java.util.List;
+
+@SuppressWarnings("unused")
+public class CustomAnvilRecipeApi {
+
+    private CustomAnvilRecipeApi(){}
+
+    private static int saveChangeTask = -1;
+
+    /**
+     * Write and add a custom anvil recipe.
+     * Will not write the recipe if it already exists.
+     *
+     * @param builder The recipe builder to be based on
+     * @return True if successful.
+     */
+    public static boolean addRecipe(@NotNull AnvilRecipeBuilder builder){
+        FileConfiguration config = ConfigHolder.CUSTOM_RECIPE_HOLDER.getConfig();
+        String name = builder.getName();
+
+        if(config.contains(builder.getName())) return false;
+        if(builder.getName().contains(".")) {
+            CustomAnvil.instance.getLogger().warning("Custom anvil recipe " + name + " contain \".\" in its name but should not. this recipe is ignored.");
+            return false;
+        }
+
+        AnvilCustomRecipe recipe = builder.build();
+        if(recipe == null){
+            CustomAnvil.instance.getLogger().warning("Custom anvil recipe " + name + " could not be parsed.");
+            if(builder.getLeftItem() == null){
+                CustomAnvil.instance.getLogger().warning("It look like left item of the recipe is null.");
+            }
+            if(builder.getResultItem() == null){
+                CustomAnvil.instance.getLogger().warning("It look like result item of the recipe is null.");
+            }
+            return false;
+        }
+
+        // Save to file
+        recipe.saveToFile(false, false);
+        prepareSaveTask();
+
+        // Update gui
+        CustomRecipeConfigGui.INSTANCE.updateValueForGeneric(recipe, true);
+
+        return true;
+    }
+
+    /**
+     * Prepare a task to save custom recipe configuration.
+     */
+    private static void prepareSaveTask() {
+        if(saveChangeTask != -1) return;
+
+        saveChangeTask = Bukkit.getScheduler().scheduleSyncDelayedTask(CustomAnvil.instance, ()->{
+            ConfigHolder.CONFLICT_HOLDER.saveToDisk(true);
+            saveChangeTask = -1;
+        }, 0L);
+    }
+
+    /**
+     * Get every registered recipes.
+     * @return An immutable collection of recipes.
+     */
+    @NotNull
+    public static List<AnvilCustomRecipe> getRegisteredRecipes(){
+        List<AnvilCustomRecipe> mutableList = ConfigHolder.CUSTOM_RECIPE_HOLDER.getRecipeManager().getRecipeList();
+        return Collections.unmodifiableList(mutableList);
+    }
+
+}