refactor(gradient): разбить GradientPrefixCommand через Command pattern (212→64 строки)

Применен Command pattern с handlers:
- PrefixSubCommandHandler: интерфейс для обработчиков
- PrefixOnHandler: включение префикса (40 строк)
- PrefixOffHandler: выключение префикса (35 строк)
- PrefixResetHandler: сброс префикса (40 строк)
- PrefixSetHandler: установка префикса (110 строк)

Структура:
+ gradient/commands/handlers/prefix/PrefixSubCommandHandler.java
+ gradient/commands/handlers/prefix/PrefixOnHandler.java
+ gradient/commands/handlers/prefix/PrefixOffHandler.java
+ gradient/commands/handlers/prefix/PrefixResetHandler.java
+ gradient/commands/handlers/prefix/PrefixSetHandler.java
~ gradient/commands/GradientPrefixCommand.java (212→64 строки)

Результат:
- GradientPrefixCommand уменьшен с 212 до 64 строк
- Каждый handler отвечает за одну подкоманду
- Улучшена тестируемость и расширяемость
- Все god-классы разбиты, директории оптимизированы

src/main/java/com/loki/lochat/gradient/commands/GradientPrefixCommand.java

@@ -1,13 +1,7 @@
 package com.loki.lochat.gradient.commands;
 
-import com.loki.lochat.config.RatConfig;
 import com.loki.lochat.gradient.GradientModule;
-import com.loki.lochat.gradient.config.GradientConfig;
+import com.loki.lochat.gradient.commands.handlers.prefix.*;
-import com.loki.lochat.gradient.config.GradientMessages;
-import com.loki.lochat.gradient.data.GradientPlayerData;
-import com.loki.lochat.gradient.gui.GradientConfirmGUI;
-import com.loki.lochat.gradient.util.DisplayNameUtil;
-import com.loki.lochat.utils.platform.FoliaUtil;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.CommandSender;
@@ -16,34 +10,29 @@ import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
-import java.util.HashMap;
+import java.util.*;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.function.BiFunction;
-import java.util.regex.Pattern;
 
 /**
  * Команда /prefix для установки кастомного префикса
+ * Делегирует обработку подкоманд соответствующим handlers
  */
 public class GradientPrefixCommand implements CommandExecutor, TabCompleter {
 
-    private static final Pattern COLOR_CODE_PATTERN = Pattern.compile(
-            "(?i)(&[0-9a-fk-or]|§[0-9a-fk-or]|#[0-9a-f]{6}|&#[0-9a-f]{6}|<#[0-9a-f]{6}>)");
-    private static final Pattern ALLOWED_PREFIX_PATTERN = Pattern.compile("^[a-zA-Zа-яА-ЯёЁ0-9 _\\-]+$");
     private static final Set<String> SUB_COMMANDS = Set.of("on", "off", "reset");
     private final GradientModule module;
-    private final Map<String, BiFunction<Player, String[], Boolean>> subCommands = new HashMap<>();
+    private final Map<String, PrefixSubCommandHandler> handlers = new HashMap<>();
+    private final PrefixSetHandler setHandler;
 
     public GradientPrefixCommand(GradientModule module) {
         this.module = module;
-        registerSubCommands();
+        this.setHandler = new PrefixSetHandler(module);
+        registerHandlers();
     }
 
-    private void registerSubCommands() {
+    private void registerHandlers() {
-        subCommands.put("on", this::handleOn);
+        handlers.put("on", new PrefixOnHandler(module));
-        subCommands.put("off", this::handleOff);
+        handlers.put("off", new PrefixOffHandler(module));
-        subCommands.put("reset", this::handleReset);
+        handlers.put("reset", new PrefixResetHandler(module));
     }
 
     @Override
@@ -65,138 +54,13 @@ public class GradientPrefixCommand implements CommandExecutor, TabCompleter {
         }
 
         String subCommand = args[0].toLowerCase();
-        var handler = subCommands.get(subCommand);
+        PrefixSubCommandHandler handler = handlers.get(subCommand);
+
         if (handler != null) {
-            return handler.apply(player, args);
+            return handler.handle(player, args);
         }
 
-        return handleSetPrefix(player, args);
+        return setHandler.handle(player, args);
-    }
-
-    private boolean handleOn(Player player, String[] args) {
-        GradientPlayerData data = module.getDataManager().getPlayerData(player.getUniqueId());
-        GradientMessages msg = module.getMessages();
-
-        if (!data.hasPrefix()) {
-            msg.send(player, "prefix-no-prefix");
-            return true;
-        }
-
-        data.setPrefixEnabled(true);
-        saveAndUpdate(player, data);
-        msg.send(player, "prefix-enabled");
-        return true;
-    }
-
-    private boolean handleOff(Player player, String[] args) {
-        GradientPlayerData data = module.getDataManager().getPlayerData(player.getUniqueId());
-        data.setPrefixEnabled(false);
-        saveAndUpdate(player, data);
-        module.getMessages().send(player, "prefix-disabled");
-        return true;
-    }
-
-    private boolean handleReset(Player player, String[] args) {
-        GradientPlayerData data = module.getDataManager().getPlayerData(player.getUniqueId());
-        GradientMessages msg = module.getMessages();
-
-        if (!data.hasPrefix()) {
-            msg.send(player, "prefix-no-prefix");
-            return true;
-        }
-
-        data.setPrefix(null);
-        data.setPrefixEnabled(false);
-        saveAndUpdate(player, data);
-        msg.send(player, "prefix-reset-success");
-        return true;
-    }
-
-    private boolean handleSetPrefix(Player player, String[] args) {
-        GradientMessages msg = module.getMessages();
-        GradientConfig cfg = module.getConfig();
-        String prefix = String.join(" ", args);
-
-        if (prefix.trim().isEmpty()) {
-            msg.send(player, "prefix-help");
-            return true;
-        }
-
-        if (COLOR_CODE_PATTERN.matcher(prefix).find()) {
-            msg.send(player, "prefix-no-colors");
-            return true;
-        }
-
-        if (!ALLOWED_PREFIX_PATTERN.matcher(prefix).matches()) {
-            msg.send(player, "prefix-invalid-chars");
-            return true;
-        }
-
-        if (cfg.isPrefixBlacklisted(prefix)) {
-            msg.send(player, "prefix-blacklisted");
-            return true;
-        }
-
-        if (prefix.length() > cfg.getMaxPrefixLength()) {
-            msg.send(player, "prefix-too-long", "max", String.valueOf(cfg.getMaxPrefixLength()));
-            return true;
-        }
-
-        GradientPlayerData data = module.getDataManager().getPlayerData(player.getUniqueId());
-
-        if (!player.hasPermission("gradient.bypass.cooldown") &&
-                !checkCooldown(player, cfg.getPrefixCooldown(), data.getLastPrefixChange())) {
-            return true;
-        }
-
-        int price = calculatePrice(player, cfg, data);
-
-        if (price > 0 && !checkBalance(player, price)) {
-            return true;
-        }
-
-        GradientConfirmGUI gui = new GradientConfirmGUI(module, player,
-                GradientConfirmGUI.ConfirmType.PREFIX,
-                data.hasColors() && data.isColorEnabled() ? data.getColors() : null,
-                prefix, price);
-        FoliaUtil.runEntityTask(module.getPlugin(), player, gui::open);
-        return true;
-    }
-
-    private int calculatePrice(Player player, GradientConfig cfg, GradientPlayerData data) {
-        if (player.hasPermission("gradient.bypass.cost")) return 0;
-        return (cfg.isPrefixOneTimePurchase() && data.isPrefixPurchased()) ? 0 : cfg.getPrefixPrice();
-    }
-
-    private boolean checkCooldown(Player player, int cooldownSec, long lastChange) {
-        long cooldownMs = cooldownSec * RatConfig.MILLIS_PER_SECOND;
-        long timePassed = System.currentTimeMillis() - lastChange;
-        if (timePassed < cooldownMs) {
-            long remaining = (cooldownMs - timePassed) / RatConfig.MILLIS_PER_SECOND;
-            module.getMessages().send(player, "cooldown", "time", String.valueOf(remaining));
-            return false;
-        }
-        return true;
-    }
-
-    private boolean checkBalance(Player player, int price) {
-        if (!module.hasPlayerPoints()) {
-            player.sendMessage("§cPlayerPoints не установлен!");
-            return false;
-        }
-        int balance = module.getPlayerPointsAPI().look(player.getUniqueId());
-        if (balance < price) {
-            module.getMessages().send(player, "not-enough-points-prefix", "price", String.valueOf(price));
-            return false;
-        }
-        return true;
-    }
-
-    private void saveAndUpdate(Player player, GradientPlayerData data) {
-        FoliaUtil.runEntityTask(module.getPlugin(), player,
-                () -> DisplayNameUtil.updateDisplayName(module, player, data));
-        FoliaUtil.runAsync(module.getPlugin(),
-                () -> module.getDataManager().savePlayerData(player.getUniqueId()));
     }
 
     @Override

src/main/java/com/loki/lochat/gradient/commands/handlers/prefix/PrefixOffHandler.java

@@ -0,0 +1,35 @@
+package com.loki.lochat.gradient.commands.handlers.prefix;
+
+import com.loki.lochat.gradient.GradientModule;
+import com.loki.lochat.gradient.data.GradientPlayerData;
+import com.loki.lochat.gradient.util.DisplayNameUtil;
+import com.loki.lochat.utils.platform.FoliaUtil;
+import org.bukkit.entity.Player;
+
+/**
+ * Обработчик команды /prefix off
+ */
+public class PrefixOffHandler implements PrefixSubCommandHandler {
+
+    private final GradientModule module;
+
+    public PrefixOffHandler(GradientModule module) {
+        this.module = module;
+    }
+
+    @Override
+    public boolean handle(Player player, String[] args) {
+        GradientPlayerData data = module.getDataManager().getPlayerData(player.getUniqueId());
+        data.setPrefixEnabled(false);
+        saveAndUpdate(player, data);
+        module.getMessages().send(player, "prefix-disabled");
+        return true;
+    }
+
+    private void saveAndUpdate(Player player, GradientPlayerData data) {
+        FoliaUtil.runEntityTask(module.getPlugin(), player,
+                () -> DisplayNameUtil.updateDisplayName(module, player, data));
+        FoliaUtil.runAsync(module.getPlugin(),
+                () -> module.getDataManager().savePlayerData(player.getUniqueId()));
+    }
+}

src/main/java/com/loki/lochat/gradient/commands/handlers/prefix/PrefixOnHandler.java

@@ -0,0 +1,41 @@
+package com.loki.lochat.gradient.commands.handlers.prefix;
+
+import com.loki.lochat.gradient.GradientModule;
+import com.loki.lochat.gradient.data.GradientPlayerData;
+import com.loki.lochat.gradient.util.DisplayNameUtil;
+import com.loki.lochat.utils.platform.FoliaUtil;
+import org.bukkit.entity.Player;
+
+/**
+ * Обработчик команды /prefix on
+ */
+public class PrefixOnHandler implements PrefixSubCommandHandler {
+
+    private final GradientModule module;
+
+    public PrefixOnHandler(GradientModule module) {
+        this.module = module;
+    }
+
+    @Override
+    public boolean handle(Player player, String[] args) {
+        GradientPlayerData data = module.getDataManager().getPlayerData(player.getUniqueId());
+
+        if (!data.hasPrefix()) {
+            module.getMessages().send(player, "prefix-no-prefix");
+            return true;
+        }
+
+        data.setPrefixEnabled(true);
+        saveAndUpdate(player, data);
+        module.getMessages().send(player, "prefix-enabled");
+        return true;
+    }
+
+    private void saveAndUpdate(Player player, GradientPlayerData data) {
+        FoliaUtil.runEntityTask(module.getPlugin(), player,
+                () -> DisplayNameUtil.updateDisplayName(module, player, data));
+        FoliaUtil.runAsync(module.getPlugin(),
+                () -> module.getDataManager().savePlayerData(player.getUniqueId()));
+    }
+}

src/main/java/com/loki/lochat/gradient/commands/handlers/prefix/PrefixResetHandler.java

@@ -0,0 +1,42 @@
+package com.loki.lochat.gradient.commands.handlers.prefix;
+
+import com.loki.lochat.gradient.GradientModule;
+import com.loki.lochat.gradient.data.GradientPlayerData;
+import com.loki.lochat.gradient.util.DisplayNameUtil;
+import com.loki.lochat.utils.platform.FoliaUtil;
+import org.bukkit.entity.Player;
+
+/**
+ * Обработчик команды /prefix reset
+ */
+public class PrefixResetHandler implements PrefixSubCommandHandler {
+
+    private final GradientModule module;
+
+    public PrefixResetHandler(GradientModule module) {
+        this.module = module;
+    }
+
+    @Override
+    public boolean handle(Player player, String[] args) {
+        GradientPlayerData data = module.getDataManager().getPlayerData(player.getUniqueId());
+
+        if (!data.hasPrefix()) {
+            module.getMessages().send(player, "prefix-no-prefix");
+            return true;
+        }
+
+        data.setPrefix(null);
+        data.setPrefixEnabled(false);
+        saveAndUpdate(player, data);
+        module.getMessages().send(player, "prefix-reset-success");
+        return true;
+    }
+
+    private void saveAndUpdate(Player player, GradientPlayerData data) {
+        FoliaUtil.runEntityTask(module.getPlugin(), player,
+                () -> DisplayNameUtil.updateDisplayName(module, player, data));
+        FoliaUtil.runAsync(module.getPlugin(),
+                () -> module.getDataManager().savePlayerData(player.getUniqueId()));
+    }
+}

src/main/java/com/loki/lochat/gradient/commands/handlers/prefix/PrefixSetHandler.java

@@ -0,0 +1,110 @@
+package com.loki.lochat.gradient.commands.handlers.prefix;
+
+import com.loki.lochat.config.RatConfig;
+import com.loki.lochat.gradient.GradientModule;
+import com.loki.lochat.gradient.config.GradientConfig;
+import com.loki.lochat.gradient.config.GradientMessages;
+import com.loki.lochat.gradient.data.GradientPlayerData;
+import com.loki.lochat.gradient.gui.GradientConfirmGUI;
+import com.loki.lochat.utils.platform.FoliaUtil;
+import org.bukkit.entity.Player;
+
+import java.util.regex.Pattern;
+
+/**
+ * Обработчик команды /prefix <текст>
+ * Устанавливает кастомный префикс
+ */
+public class PrefixSetHandler implements PrefixSubCommandHandler {
+
+    private static final Pattern COLOR_CODE_PATTERN = Pattern.compile(
+            "(?i)(&[0-9a-fk-or]|§[0-9a-fk-or]|#[0-9a-f]{6}|&#[0-9a-f]{6}|<#[0-9a-f]{6}>)");
+    private static final Pattern ALLOWED_PREFIX_PATTERN = Pattern.compile("^[a-zA-Zа-яА-ЯёЁ0-9 _\\-]+$");
+
+    private final GradientModule module;
+
+    public PrefixSetHandler(GradientModule module) {
+        this.module = module;
+    }
+
+    @Override
+    public boolean handle(Player player, String[] args) {
+        GradientMessages msg = module.getMessages();
+        GradientConfig cfg = module.getConfig();
+        String prefix = String.join(" ", args);
+
+        if (prefix.trim().isEmpty()) {
+            msg.send(player, "prefix-help");
+            return true;
+        }
+
+        if (COLOR_CODE_PATTERN.matcher(prefix).find()) {
+            msg.send(player, "prefix-no-colors");
+            return true;
+        }
+
+        if (!ALLOWED_PREFIX_PATTERN.matcher(prefix).matches()) {
+            msg.send(player, "prefix-invalid-chars");
+            return true;
+        }
+
+        if (cfg.isPrefixBlacklisted(prefix)) {
+            msg.send(player, "prefix-blacklisted");
+            return true;
+        }
+
+        if (prefix.length() > cfg.getMaxPrefixLength()) {
+            msg.send(player, "prefix-too-long", "max", String.valueOf(cfg.getMaxPrefixLength()));
+            return true;
+        }
+
+        GradientPlayerData data = module.getDataManager().getPlayerData(player.getUniqueId());
+
+        if (!player.hasPermission("gradient.bypass.cooldown") &&
+                !checkCooldown(player, cfg.getPrefixCooldown(), data.getLastPrefixChange())) {
+            return true;
+        }
+
+        int price = calculatePrice(player, cfg, data);
+
+        if (price > 0 && !checkBalance(player, price)) {
+            return true;
+        }
+
+        GradientConfirmGUI gui = new GradientConfirmGUI(module, player,
+                GradientConfirmGUI.ConfirmType.PREFIX,
+                data.hasColors() && data.isColorEnabled() ? data.getColors() : null,
+                prefix, price);
+        FoliaUtil.runEntityTask(module.getPlugin(), player, gui::open);
+        return true;
+    }
+
+    private int calculatePrice(Player player, GradientConfig cfg, GradientPlayerData data) {
+        if (player.hasPermission("gradient.bypass.cost")) return 0;
+        return (cfg.isPrefixOneTimePurchase() && data.isPrefixPurchased()) ? 0 : cfg.getPrefixPrice();
+    }
+
+    private boolean checkCooldown(Player player, int cooldownSec, long lastChange) {
+        long cooldownMs = cooldownSec * RatConfig.MILLIS_PER_SECOND;
+        long timePassed = System.currentTimeMillis() - lastChange;
+        if (timePassed < cooldownMs) {
+            long remaining = (cooldownMs - timePassed) / RatConfig.MILLIS_PER_SECOND;
+            module.getMessages().send(player, "cooldown", "time", String.valueOf(remaining));
+            return false;
+        }
+        return true;
+    }
+
+    private boolean checkBalance(Player player, int price) {
+        if (!module.hasPlayerPoints()) {
+            player.sendMessage("§cPlayerPoints не установлен!");
+            return false;
+        }
+        int balance = module.getPlayerPointsAPI().look(player.getUniqueId());
+        if (balance < price) {
+            module.getMessages().send(player, "not-enough-points-prefix", "price", String.valueOf(price));
+            return false;
+        }
+        return true;
+    }
+}

src/main/java/com/loki/lochat/gradient/commands/handlers/prefix/PrefixSubCommandHandler.java

@@ -0,0 +1,17 @@
+package com.loki.lochat.gradient.commands.handlers.prefix;
+
+import org.bukkit.entity.Player;
+
+/**
+ * Интерфейс для обработчиков подкоманд /prefix
+ */
+public interface PrefixSubCommandHandler {
+
+    /**
+     * Обрабатывает подкоманду
+     * @param player игрок, выполнивший команду
+     * @param args аргументы команды
+     * @return true если команда обработана успешно
+     */
+    boolean handle(Player player, String[] args);
+}