Fix api initial issue. (#15)

- Deleted object will now not be re added by default.
- Config Event is now also triggered on reload cmd. (reload cmd now also
apply update/compatibility fix)

build.gradle.kts

@@ -1,12 +1,11 @@
 import cn.lalaki.pub.BaseCentralPortalPlusExtension
 import org.jetbrains.kotlin.gradle.dsl.JvmTarget
-import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
     kotlin("jvm") version "2.0.0"
     java
     id("org.jetbrains.dokka").version("1.9.20")
-    id("io.github.goooler.shadow").version("8.1.8") // using fork of com.github.johnrengelman.shadow to support java 1.21
+    id("io.github.goooler.shadow").version("8.1.8") // using fork of com.github.johnrengelman.shadow to support java 1.21. edit I do not need java 1.21 now so should be replaced ?
     // Maven publish
     `maven-publish`
     signing

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

@@ -9,7 +9,9 @@ import xyz.alexcrea.cuanvil.config.ConfigHolder;
 import xyz.alexcrea.cuanvil.group.EnchantConflictGroup;
 import xyz.alexcrea.cuanvil.gui.config.global.EnchantConflictGui;
 
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
 
 /**
  * Custom Anvil api for conflict registry.
@@ -30,18 +32,34 @@ public class ConflictAPI {
      * @return True if successful.
      */
     public static boolean addConflict(@NotNull ConflictBuilder builder){
+        return addConflict(builder, false);
+    }
+
+    /**
+     * Write and add a conflict.
+     * Will not write the conflict if it already exists.
+     *
+     * @param builder The conflict builder to be based on
+     * @param overrideDeleted If we should write even if the conflict was previously deleted.
+     * @return True if successful.
+     */
+    public static boolean addConflict(@NotNull ConflictBuilder builder, boolean overrideDeleted){
         FileConfiguration config = ConfigHolder.CONFLICT_HOLDER.getConfig();
+
+        // Test if conflict can be added
+        if(!overrideDeleted && ConfigHolder.CONFLICT_HOLDER.isDeleted(builder.getName())) return false;
         if(config.contains(builder.getName())) return false;
 
         if(!writeConflict(builder, false)) return false;
 
-        EnchantConflictGroup conflict = builder.build();
 
+        EnchantConflictGroup conflict = builder.build();
         // Register conflict
         ConfigHolder.CONFLICT_HOLDER.getConflictManager().addConflict(conflict);
 
         // Add conflict to gui
-        EnchantConflictGui.INSTANCE.updateValueForGeneric(conflict, true);
+        EnchantConflictGui conflictGui = EnchantConflictGui.getCurrentInstance();
+        if(conflictGui != null) conflictGui.updateValueForGeneric(conflict, true);
 
         return true;
     }
@@ -118,11 +136,13 @@ public class ConflictAPI {
         ConfigHolder.CONFLICT_HOLDER.getConflictManager().removeConflict(conflict);
 
         // Write as null and save to file
-        ConfigHolder.CONFLICT_HOLDER.getConfig().set(conflict.getName(), null);
+        ConfigHolder.CONFLICT_HOLDER.delete(conflict.getName());
         prepareSaveTask();
 
         // Remove from gui
-        EnchantConflictGui.INSTANCE.removeGeneric(conflict);
+        EnchantConflictGui conflictGui = EnchantConflictGui.getCurrentInstance();
+        if(conflictGui != null) conflictGui.removeGeneric(conflict);
+
 
         return true;
     }
@@ -147,14 +167,16 @@ public class ConflictAPI {
 
         reloadChangeTask = Bukkit.getScheduler().scheduleSyncDelayedTask(CustomAnvil.instance, ()->{
             ConfigHolder.CONFLICT_HOLDER.reload();
-            EnchantConflictGui.INSTANCE.reloadValues();
+            EnchantConflictGui conflictGui = EnchantConflictGui.getCurrentInstance();
+            if(conflictGui != null) conflictGui.reloadValues();
+
             reloadChangeTask = -1;
         }, 0L);
 
     }
 
     static void logConflictOrigin(@NotNull ConflictBuilder builder){
-        CustomAnvil.instance.getLogger().warning("Conflict " + builder.getName() +" came from " + builder.getSourceName() + ".");
+        CustomAnvil.instance.getLogger().warning("Conflict " + builder.getName() + " came from " + builder.getSourceName() + ".");
     }
 
     /**

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

@@ -29,10 +29,24 @@ public class CustomAnvilRecipeApi {
      * @return True if successful.
      */
     public static boolean addRecipe(@NotNull AnvilRecipeBuilder builder){
+        return addRecipe(builder, false);
+    }
+
+    /**
+     * 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
+     * @param overrideDeleted If we should write even if the recipe was previously deleted.
+     * @return True if successful.
+     */
+    public static boolean addRecipe(@NotNull AnvilRecipeBuilder builder, boolean overrideDeleted){
         FileConfiguration config = ConfigHolder.CUSTOM_RECIPE_HOLDER.getConfig();
         String name = builder.getName();
 
+        if(!overrideDeleted && ConfigHolder.CUSTOM_RECIPE_HOLDER.isDeleted(builder.getName())) return false;
         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;
@@ -58,7 +72,8 @@ public class CustomAnvilRecipeApi {
         prepareSaveTask();
 
         // Add from gui
-        CustomRecipeConfigGui.INSTANCE.updateValueForGeneric(recipe, true);
+        CustomRecipeConfigGui recipeConfigGui = CustomRecipeConfigGui.getCurrentInstance();
+        if(recipeConfigGui != null) recipeConfigGui.updateValueForGeneric(recipe, true);
 
         return true;
     }
@@ -74,11 +89,12 @@ public class CustomAnvilRecipeApi {
         ConfigHolder.CUSTOM_RECIPE_HOLDER.getRecipeManager().cleanRemove(recipe);
 
         // Write as null and save to file
-        ConfigHolder.CUSTOM_RECIPE_HOLDER.getConfig().set(recipe.getName(), null);
+        ConfigHolder.CUSTOM_RECIPE_HOLDER.delete(recipe.getName());
         prepareSaveTask();
 
         // Remove from gui
-        CustomRecipeConfigGui.INSTANCE.removeGeneric(recipe);
+        CustomRecipeConfigGui recipeConfigGui = CustomRecipeConfigGui.getCurrentInstance();
+        if(recipeConfigGui != null) recipeConfigGui.removeGeneric(recipe);
 
         return true;
     }

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

@@ -27,22 +27,41 @@ public class MaterialGroupApi {
     private static int saveChangeTask = -1;
     private static int reloadChangeTask = -1;
 
+
     /**
      * Write and add a group.
      * Will not write the group if it already exists.
      *
-     * @param group the group to add
+     * @param group The group to add
      * @return true if successful.
      */
     public static boolean addMaterialGroup(@NotNull AbstractMaterialGroup group){
+        return addMaterialGroup(group, false);
+    }
+
+    /**
+     * Write and add a group.
+     * Will not write the group if it already exists.
+     *
+     * @param group The group to add
+     * @param overrideDeleted If we should write even if the group was previously deleted.
+     * @return true if successful.
+     */
+    public static boolean addMaterialGroup(@NotNull AbstractMaterialGroup group, boolean overrideDeleted){
         ItemGroupManager itemGroupManager = ConfigHolder.ITEM_GROUP_HOLDER.getItemGroupsManager();
+
+        // Test if it exists/existed
+        if(!overrideDeleted && ConfigHolder.ITEM_GROUP_HOLDER.isDeleted(group.getName())) return false;
         if(itemGroupManager.get(group.getName()) != null) return false;
+
+        // Add group
         itemGroupManager.getGroupMap().put(group.getName(), group);
 
         if(!writeMaterialGroup(group, false)) return false;
 
         if(group instanceof IncludeGroup includeGroup){
-            GroupConfigGui.INSTANCE.updateValueForGeneric(includeGroup, true);
+            GroupConfigGui configGui = GroupConfigGui.getCurrentInstance();
+            if(configGui != null) configGui.updateValueForGeneric(includeGroup, true);
         }
 
         if(ConfigOptions.INSTANCE.getVerboseDebugLog()){
@@ -145,12 +164,13 @@ public class MaterialGroupApi {
         ConfigHolder.ITEM_GROUP_HOLDER.getItemGroupsManager().groupMap.remove(group.getName());
 
         // Write as null and save to file
-        ConfigHolder.ITEM_GROUP_HOLDER.getConfig().set(group.getName(), null);
+        ConfigHolder.ITEM_GROUP_HOLDER.delete(group.getName());
         prepareSaveTask();
 
         // Remove from gui
         if(group instanceof IncludeGroup includeGroup){
-            GroupConfigGui.INSTANCE.removeGeneric(includeGroup);
+            GroupConfigGui configGui = GroupConfigGui.getCurrentInstance();
+            if(configGui != null) configGui.removeGeneric(includeGroup);
         }
 
         return true;
@@ -176,7 +196,10 @@ public class MaterialGroupApi {
 
         reloadChangeTask = Bukkit.getScheduler().scheduleSyncDelayedTask(CustomAnvil.instance, ()->{
             ConfigHolder.ITEM_GROUP_HOLDER.reload();
-            GroupConfigGui.INSTANCE.reloadValues();
+
+            GroupConfigGui configGui = GroupConfigGui.getCurrentInstance();
+            if(configGui != null) configGui.reloadValues();
+
             reloadChangeTask = -1;
         }, 0L);
 

src/main/java/xyz/alexcrea/cuanvil/config/ConfigHolder.java

@@ -4,13 +4,17 @@ import com.google.common.io.Files;
 import io.delilaheve.CustomAnvil;
 import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.configuration.file.YamlConfiguration;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 import xyz.alexcrea.cuanvil.group.EnchantConflictManager;
 import xyz.alexcrea.cuanvil.group.ItemGroupManager;
 import xyz.alexcrea.cuanvil.recipe.CustomAnvilRecipeManager;
 
 import java.io.File;
 import java.io.IOException;
+import java.util.logging.Level;
 
+@SuppressWarnings("unused")
 public abstract class ConfigHolder {
 
     // Available configuration:
@@ -140,7 +144,7 @@ public abstract class ConfigHolder {
                 Files.copy(base, firstBackup);
                 sufficientSuccess = true;
             } catch (IOException e) {
-                e.printStackTrace();
+                CustomAnvil.instance.getLogger().log(Level.WARNING, "Could not copy backup saving config " + base.getName(), e);
             }
         }
         // save last backup
@@ -200,15 +204,126 @@ public abstract class ConfigHolder {
             YamlConfiguration configuration = CustomAnvil.instance.reloadResource(
                     getConfigFileName() + getConfigFileExtension(), hardFail);
             if (configuration == null) return false;
+
             this.configuration = configuration;
             reload();
+
             return true;
         }
 
     }
 
+    public abstract static class DeletableResource extends ResourceConfigHolder{
+
+        private static final String DELETED_FOLDER_PATH = "deleted";
+
+        private final @NotNull File parent;
+        private final @NotNull File deletedConfigFile;
+
+        private @Nullable YamlConfiguration deletedListConfig;
+        private DeletableResource(String resourceName) {
+            super(resourceName);
+            this.parent = new File(CustomAnvil.instance.getDataFolder(), DELETED_FOLDER_PATH);
+            this.deletedConfigFile = new File(this.parent, "deleted_" + resourceName + getConfigFileExtension());
+        }
+
+        @Override
+        public boolean reloadFromDisk(boolean hardFail) {
+            if(!super.reloadFromDisk(hardFail)) return false;
+            loadDeletedListFile(hardFail);
+
+            return true;
+        }
+
+        private void loadDeletedListFile(boolean hardFail){
+            this.deletedListConfig = CustomAnvil.instance.reloadResource(this.deletedConfigFile, hardFail);
+
+        }
+
+        /**
+         * Test if the provided element was deleted.
+         * @param objectPath The object path to delete.
+         * @return True if successful.
+         */
+        public boolean isDeleted(String objectPath){
+            if(this.deletedListConfig == null) return false;
+
+            return this.deletedListConfig.getBoolean(objectPath, false);
+        }
+
+        /**
+         * Delete a certain object by its path. do not save the config.
+         * @param objectPath The object path to delete.
+         * @return True if successful.
+         */
+        public boolean delete(String objectPath){
+            return delete(objectPath, false, false);
+        }
+
+        /**
+         * Delete a certain object by its path.
+         * @param objectPath The object path to delete.
+         * @param doSave If we should save the config after deleting.
+         * @param doBackup If we should create a backup.
+         * @return True if successful.
+         */
+        public boolean delete(String objectPath, boolean doSave, boolean doBackup){
+            // Create deleted list if it does not yet exist
+            if(this.deletedListConfig == null){
+                this.parent.mkdirs();
+                try {
+                    this.deletedConfigFile.createNewFile();
+                } catch (IOException e) {
+                    CustomAnvil.instance.getLogger().log(Level.WARNING, "Could not create " + this.deletedConfigFile.getPath(), e);
+                }
+                loadDeletedListFile(false);
+
+                // Something was wrong somehow
+                if(this.deletedListConfig == null) return false;
+            }
+
+            // Add to the deleted config
+            this.deletedListConfig.set(objectPath, true);
+            this.getConfig().set(objectPath, null);
+
+            // Save the deleted config (may not be the most efficient, but I will handle it later)
+            if(doSave){
+                return saveToDisk(doBackup);
+            }
+
+            return true;
+        }
+
+        @Override
+        public boolean saveToDisk(boolean doBackup) {
+            boolean deletedSaveSuccess = saveDeletedList();
+
+            return super.saveToDisk(doBackup) && deletedSaveSuccess;
+        }
+
+        /**
+         * Save list of deleted elements.
+         * @return true if successful.
+         */
+        public boolean saveDeletedList() {
+            if(this.deletedListConfig == null) return true;
+
+            try {
+                this.deletedListConfig.save(this.deletedConfigFile);
+            } catch (IOException e) {
+                CustomAnvil.instance.getLogger().log(Level.WARNING, "Could not save " + this.deletedConfigFile.getPath(), e);
+                return false;
+            }
+
+            return true;
+        }
+
+
+    }
+
+
     // Class for itemGroupsManager config
-    public static class ItemGroupConfigHolder extends ResourceConfigHolder {
+    public static class ItemGroupConfigHolder extends DeletableResource {
         private static final String FILE_NAME = "item_groups";
 
         ItemGroupManager itemGroupsManager;
@@ -235,7 +350,7 @@ public abstract class ConfigHolder {
     }
 
     // Class for enchant conflict config
-    public static class ConflictConfigHolder extends ResourceConfigHolder {
+    public static class ConflictConfigHolder extends DeletableResource {
         private static final String FILE_NAME = "enchant_conflict";
 
         EnchantConflictManager conflictManager;
@@ -259,10 +374,9 @@ public abstract class ConfigHolder {
     }
 
     // Class for unit repair config
-    public static class UnitRepairHolder extends ResourceConfigHolder {
+    public static class UnitRepairHolder extends DeletableResource {
         private static final String ITEM_GROUP_FILE_NAME = "unit_repair_item";
 
-
         private UnitRepairHolder() {
             super(ITEM_GROUP_FILE_NAME);
         }
@@ -275,7 +389,7 @@ public abstract class ConfigHolder {
 
 
     // Class for custom anvil craft
-    public static class CustomAnvilCraftHolder extends ResourceConfigHolder {
+    public static class CustomAnvilCraftHolder extends DeletableResource {
         private static final String CUSTOM_RECIPE_FILE_NAME = "custom_recipes";
         CustomAnvilRecipeManager recipeManager;
 

src/main/java/xyz/alexcrea/cuanvil/gui/config/MainConfigGui.java

@@ -82,7 +82,7 @@ public class MainConfigGui extends ChestGui {
         enchantConflictMeta.setLore(Collections.singletonList("\u00A77Click here to open enchantment conflict menu"));
         enchantConflictItemstack.setItemMeta(enchantConflictMeta);
 
-        GuiItem enchantConflictItem = GuiGlobalItems.goToGuiItem(enchantConflictItemstack, EnchantConflictGui.INSTANCE);
+        GuiItem enchantConflictItem = GuiGlobalItems.goToGuiItem(enchantConflictItemstack, EnchantConflictGui.getInstance());
         pane.bindItem('4', enchantConflictItem);
 
         // Group config items
@@ -94,7 +94,7 @@ public class MainConfigGui extends ChestGui {
         groupMeta.setLore(Collections.singletonList("\u00A77Click here to open material group menu"));
         groupItemstack.setItemMeta(groupMeta);
 
-        GuiItem groupConfigItem = GuiGlobalItems.goToGuiItem(groupItemstack, GroupConfigGui.INSTANCE);
+        GuiItem groupConfigItem = GuiGlobalItems.goToGuiItem(groupItemstack, GroupConfigGui.getInstance());
 
         pane.bindItem('5', groupConfigItem);
 
@@ -107,7 +107,7 @@ public class MainConfigGui extends ChestGui {
         unitRepairMeta.setLore(Collections.singletonList("\u00A77Click here to open anvil unit repair menu"));
         unirRepairItemstack.setItemMeta(unitRepairMeta);
 
-        GuiItem unitRepairItem = GuiGlobalItems.goToGuiItem(unirRepairItemstack, UnitRepairConfigGui.INSTANCE);
+        GuiItem unitRepairItem = GuiGlobalItems.goToGuiItem(unirRepairItemstack, UnitRepairConfigGui.getInstance());
         pane.bindItem('6', unitRepairItem);
 
         // Custom recipe item
@@ -119,7 +119,7 @@ public class MainConfigGui extends ChestGui {
         customRecipeMeta.setLore(Collections.singletonList("\u00A77Click here to open anvil custom recipe menu"));
         customRecipeItemstack.setItemMeta(customRecipeMeta);
 
-        GuiItem customRecipeItem = GuiGlobalItems.goToGuiItem(customRecipeItemstack, CustomRecipeConfigGui.INSTANCE);
+        GuiItem customRecipeItem = GuiGlobalItems.goToGuiItem(customRecipeItemstack, CustomRecipeConfigGui.getInstance());
         pane.bindItem('7', customRecipeItem);
 
         // quit item

src/main/java/xyz/alexcrea/cuanvil/gui/config/global/CustomRecipeConfigGui.java

@@ -5,6 +5,8 @@ import org.bukkit.Material;
 import org.bukkit.inventory.ItemFlag;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 import xyz.alexcrea.cuanvil.config.ConfigHolder;
 import xyz.alexcrea.cuanvil.gui.config.list.MappedGuiListConfigGui;
 import xyz.alexcrea.cuanvil.gui.config.list.elements.CustomRecipeSubSettingGui;
@@ -17,10 +19,18 @@ import java.util.Collection;
 public class CustomRecipeConfigGui extends MappedGuiListConfigGui<AnvilCustomRecipe, CustomRecipeSubSettingGui> {
 
 
-    public final static CustomRecipeConfigGui INSTANCE = new CustomRecipeConfigGui();
+    private static CustomRecipeConfigGui INSTANCE = new CustomRecipeConfigGui();
 
-    static {
+    @Nullable
-        INSTANCE.init();
+    public static CustomRecipeConfigGui getCurrentInstance(){
+        return INSTANCE;
+    }
+
+    @NotNull
+    public static CustomRecipeConfigGui getInstance(){
+        if(INSTANCE == null) INSTANCE = new CustomRecipeConfigGui();
+
+        return INSTANCE;
     }
 
     private CustomRecipeConfigGui() {

src/main/java/xyz/alexcrea/cuanvil/gui/config/global/EnchantConflictGui.java

@@ -5,6 +5,8 @@ import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.inventory.ItemFlag;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 import xyz.alexcrea.cuanvil.config.ConfigHolder;
 import xyz.alexcrea.cuanvil.group.EnchantConflictGroup;
 import xyz.alexcrea.cuanvil.group.IncludeGroup;
@@ -18,14 +20,25 @@ import java.util.Collection;
 
 public class EnchantConflictGui extends MappedGuiListConfigGui<EnchantConflictGroup, EnchantConflictSubSettingGui> {
 
-    public static final EnchantConflictGui INSTANCE = new EnchantConflictGui();
+    private static EnchantConflictGui INSTANCE;
 
-    static {
+    @Nullable
-        INSTANCE.init();
+    public static EnchantConflictGui getCurrentInstance(){
+        return INSTANCE;
     }
 
+    @NotNull
+    public static EnchantConflictGui getInstance(){
+        if(INSTANCE == null) INSTANCE = new EnchantConflictGui();
+
+        return INSTANCE;
+    }
+
+
     private EnchantConflictGui() {
         super( "Conflict Config");
+
+        init();
     }
 
     @Override

src/main/java/xyz/alexcrea/cuanvil/gui/config/global/GroupConfigGui.java

@@ -5,6 +5,8 @@ import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.inventory.ItemFlag;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 import xyz.alexcrea.cuanvil.config.ConfigHolder;
 import xyz.alexcrea.cuanvil.group.AbstractMaterialGroup;
 import xyz.alexcrea.cuanvil.group.GroupType;
@@ -20,14 +22,24 @@ import java.util.Collection;
 
 public class GroupConfigGui extends MappedGuiListConfigGui<IncludeGroup, GroupConfigSubSettingGui> {
 
-    public final static GroupConfigGui INSTANCE = new GroupConfigGui();
+    private static GroupConfigGui INSTANCE;
 
-    static {
+    @Nullable
-        INSTANCE.init();
+    public static GroupConfigGui getCurrentInstance(){
+        return INSTANCE;
+    }
+
+    @NotNull
+    public static GroupConfigGui getInstance(){
+        if(INSTANCE == null) INSTANCE = new GroupConfigGui();
+
+        return INSTANCE;
     }
 
     public GroupConfigGui() {
         super("Group Config");
+
+        init();
     }
 
     @Override

src/main/java/xyz/alexcrea/cuanvil/gui/config/global/UnitRepairConfigGui.java

@@ -6,6 +6,8 @@ import org.bukkit.Material;
 import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 import xyz.alexcrea.cuanvil.config.ConfigHolder;
 import xyz.alexcrea.cuanvil.gui.config.ask.SelectItemTypeGui;
 import xyz.alexcrea.cuanvil.gui.config.list.MappedGuiListConfigGui;
@@ -18,14 +20,24 @@ import java.util.Collection;
 
 public class UnitRepairConfigGui extends MappedGuiListConfigGui<Material, UnitRepairElementListGui> {
 
-    public static final UnitRepairConfigGui INSTANCE = new UnitRepairConfigGui();
+    private static UnitRepairConfigGui INSTANCE;
 
-    static {
+    @Nullable
-        INSTANCE.init();
+    public static UnitRepairConfigGui getCurrentInstance(){
+        return INSTANCE;
+    }
+
+    @NotNull
+    public static UnitRepairConfigGui getInstance(){
+        if(INSTANCE == null) INSTANCE = new UnitRepairConfigGui();
+
+        return INSTANCE;
     }
 
     private UnitRepairConfigGui() {
         super("Unit Repair Config");
+
+        init();
     }
 
     @Override

src/main/java/xyz/alexcrea/cuanvil/gui/config/list/elements/CustomRecipeSubSettingGui.java

@@ -120,7 +120,7 @@ public class CustomRecipeSubSettingGui extends MappedToListSubSettingGui {
             cleanAndBeUnusable();
 
             // Update config file storage
-            ConfigHolder.CUSTOM_RECIPE_HOLDER.getConfig().set(this.anvilRecipe.toString(), null);
+            ConfigHolder.CUSTOM_RECIPE_HOLDER.delete(this.anvilRecipe.toString());
 
             // Save
             boolean success = true;

src/main/java/xyz/alexcrea/cuanvil/gui/config/list/elements/EnchantConflictSubSettingGui.java

@@ -127,7 +127,7 @@ public class EnchantConflictSubSettingGui extends MappedToListSubSettingGui impl
             cleanAndBeUnusable();
 
             // Update config file storage
-            ConfigHolder.CONFLICT_HOLDER.getConfig().set(this.enchantConflict.toString(), null);
+            ConfigHolder.CONFLICT_HOLDER.delete(this.enchantConflict.toString());
 
             // Save
             boolean success = true;

src/main/java/xyz/alexcrea/cuanvil/gui/config/list/elements/GroupConfigSubSettingGui.java

@@ -129,7 +129,7 @@ public class GroupConfigSubSettingGui extends MappedToListSubSettingGui implemen
             cleanAndBeUnusable();
 
             // Update config file storage
-            ConfigHolder.CUSTOM_RECIPE_HOLDER.getConfig().set(this.group.getName(), null);
+            ConfigHolder.CUSTOM_RECIPE_HOLDER.delete(this.group.getName());
 
             // Save
             boolean success = true;

src/main/java/xyz/alexcrea/cuanvil/gui/config/settings/DoubleSettingGui.java

@@ -316,7 +316,11 @@ public class DoubleSettingGui extends AbstractSettingGui {
     @Override
     public boolean onSave() {
         if(isNull()){
-            this.holder.config.getConfig().set(this.holder.configPath, null);
+            if(this.holder.config instanceof ConfigHolder.DeletableResource deletableResource){
+                deletableResource.delete(this.holder.configPath);
+            }else{
+                this.holder.config.getConfig().set(this.holder.configPath, null);
+            }
         }else{
             this.holder.config.getConfig().set(this.holder.configPath, now.doubleValue());
         }

src/main/kotlin/io/delilaheve/CustomAnvil.kt

@@ -128,6 +128,10 @@ class CustomAnvil : JavaPlugin() {
         // temporary: handle 1.21 update
         Update_1_21.handleUpdate()
 
+        // Register enchantment of compatible plugin and load configuration change.
+        DependencyManager.handleCompatibilityConfig()
+
+        // Call config event
         val configReadyEvent = CAConfigReadyEvent()
         server.pluginManager.callEvent(configReadyEvent)
 
@@ -135,8 +139,6 @@ class CustomAnvil : JavaPlugin() {
         MainConfigGui.getInstance().init(DependencyManager.packetManager)
         GuiSharedConstant.loadConstants()
 
-        // Register enchantment of compatible plugin and load configuration change.
-        DependencyManager.handleCompatibilityConfig()
     }
 
     fun reloadResource(
@@ -148,20 +150,34 @@ class CustomAnvil : JavaPlugin() {
         if (!file.exists()) {
             saveResource(resourceName, false)
         }
+
+        return reloadResource(file, hardFailSafe)
+    }
+
+    // Unlike above function. this function will not clone default from jar.
+    fun reloadResource(
+        resourceFile: File,
+        hardFailSafe: Boolean = true
+    ): YamlConfiguration? {
+        // Test if file exist
+        if (!resourceFile.exists()) {
+            return null
+        }
+
         // Load resource
         val yamlConfig = YamlConfiguration()
         try {
-            val configReader = FileReader(file)
+            val configReader = FileReader(resourceFile)
             yamlConfig.load(configReader)
         } catch (test: Exception) {
             if (hardFailSafe) {
                 // This is important and may impact gameplay if it does not load.
                 // Failsafe is to stop the plugin
-                logger.severe("Resource $resourceName Could not be load or reload.")
+                logger.severe("Resource ${resourceFile.path} Could not be load or reload.")
                 logger.severe("Disabling plugin.")
                 Bukkit.getPluginManager().disablePlugin(this)
             } else {
-                logger.warning("Resource $resourceName Could not be load or reload.")
+                logger.warning("Resource ${resourceFile.path} Could not be load or reload.")
             }
             return null
         }

src/main/kotlin/xyz/alexcrea/cuanvil/command/ReloadExecutor.kt

@@ -1,11 +1,15 @@
 package xyz.alexcrea.cuanvil.command
 
 import io.delilaheve.CustomAnvil
+import org.bukkit.Bukkit
 import org.bukkit.command.Command
 import org.bukkit.command.CommandExecutor
 import org.bukkit.command.CommandSender
+import xyz.alexcrea.cuanvil.api.event.CAConfigReadyEvent
 import xyz.alexcrea.cuanvil.config.ConfigHolder
+import xyz.alexcrea.cuanvil.dependency.DependencyManager
 import xyz.alexcrea.cuanvil.gui.config.global.*
+import xyz.alexcrea.cuanvil.update.Update_1_21
 
 class ReloadExecutor : CommandExecutor {
     override fun onCommand(sender: CommandSender, cmd: Command, cmdstr: String, args: Array<out String>): Boolean {
@@ -39,10 +43,20 @@ class ReloadExecutor : CommandExecutor {
             EnchantCostConfigGui.getInstance()?.updateGuiValues()
             EnchantLimitConfigGui.getInstance()?.updateGuiValues()
 
-            EnchantConflictGui.INSTANCE.reloadValues()
+            EnchantConflictGui.getCurrentInstance()?.reloadValues()
-            GroupConfigGui.INSTANCE.reloadValues()
+            GroupConfigGui.getCurrentInstance()?.reloadValues()
-            UnitRepairConfigGui.INSTANCE.reloadValues()
+            UnitRepairConfigGui.getCurrentInstance()?.reloadValues()
-            CustomRecipeConfigGui.INSTANCE.reloadValues()
+            CustomRecipeConfigGui.getCurrentInstance()?.reloadValues()
+
+            // temporary: handle 1.21 update
+            Update_1_21.handleUpdate()
+
+            // Register enchantment of compatible plugin and load configuration change.
+            DependencyManager.handleCompatibilityConfig()
+
+            // Call event
+            val configReadyEvent = CAConfigReadyEvent()
+            Bukkit.getServer().pluginManager.callEvent(configReadyEvent)
 
             return true
         } catch (e: Exception) {