Добавил команду /givepass для продления проходок

src/main/java/org/joutak/joutaktemplate/JouTakTemplate.java

@@ -3,6 +3,8 @@
 import lombok.Getter;
 import lombok.extern.slf4j.Slf4j;
 import org.bukkit.plugin.java.JavaPlugin;
+import org.joutak.joutaktemplate.commands.GivePassCommand;
+import org.joutak.joutaktemplate.data.PlayerJoinListener;
 
 
 @Slf4j
@@ -13,12 +15,17 @@ public final class JouTakTemplate extends JavaPlugin {
 
     @Override
     public void onEnable() {
-
+        instance = this;
+        if (!getDataFolder().exists()) getDataFolder().mkdirs();
+        getCommand("givepass").setExecutor(new GivePassCommand(this));
+        getServer().getPluginManager().registerEvents(new PlayerJoinListener(this), this);
+        log.info("Плагин JouTakTemplate успешно включен.");
     }
 
     @Override
     public void onDisable() {
         // Plugin shutdown logic
+        log.info("Плагин JouTekTemplate отключён");
     }
 
 }

src/main/java/org/joutak/joutaktemplate/commands/GivePassCommand.java

@@ -0,0 +1,80 @@
+package org.joutak.joutaktemplate.commands;
+
+import com.google.common.reflect.TypeToken;
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import org.bukkit.ChatColor;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.joutak.joutaktemplate.data.PlayerPass;
+
+import java.io.*;
+import java.lang.reflect.Type;
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeParseException;
+import java.util.List;
+
+public class GivePassCommand implements CommandExecutor {
+    private final JavaPlugin javaPlugin;
+    private final File jsonFile;
+    private final Gson gson = new GsonBuilder().setPrettyPrinting().create();
+    private final DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
+
+    public GivePassCommand(JavaPlugin javaPlugin){
+        this.javaPlugin = javaPlugin;
+        this.jsonFile = new File(javaPlugin.getDataFolder(), "passes.json");
+    }
+
+    @Override
+    public boolean onCommand(CommandSender sender, Command command, String label, String[] args){
+        if (args.length != 1){
+            sender.sendMessage(ChatColor.RED + "Использование команды /givepass <количество дней>");
+            return false;
+        }
+
+        int days;
+        try
+        {
+           days = Integer.parseInt(args[0]);
+        } catch (NumberFormatException e){
+            sender.sendMessage(ChatColor.RED + "Введите целое число ");
+            return false;
+        }
+
+        if(!jsonFile.exists()){
+            sender.sendMessage(ChatColor.RED+"Файл passes.json не найден");
+            return false;
+        }
+
+        try(Reader reader = new FileReader(jsonFile)) {
+            Type listType = new TypeToken<List<PlayerPass>>() {
+            }.getType();
+            List<PlayerPass> passes = gson.fromJson(reader, listType);
+
+            LocalDate now = LocalDate.now();
+
+            for (PlayerPass pass : passes) {
+                LocalDate passUntil = LocalDate.parse(pass.getPassValidUntil(), formatter);
+                LocalDate newValidUntil = passUntil.isAfter(now) ? passUntil.plusDays(days) : now.plusDays(days);
+
+                pass.setPassValidUntil(newValidUntil.format(formatter));
+                pass.setLastPaymentDate(now.format(formatter));
+            }
+
+            try (Writer writer = new FileWriter(jsonFile)) {
+                gson.toJson(passes, writer);
+            }
+
+            sender.sendMessage(ChatColor.GREEN + "Проходки продлены на " + days + " дня(ей)");
+            return true;
+        }
+        catch (IOException | DateTimeParseException e){
+            e.printStackTrace();
+            sender.sendMessage(ChatColor.RED + "Ошибка при обработке файла.");
+            return false;
+        }
+    }
+}

src/main/java/org/joutak/joutaktemplate/data/PlayerJoinListener.java

@@ -0,0 +1,60 @@
+package org.joutak.joutaktemplate.data;
+
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerJoinEvent;
+
+import java.io.*;
+import java.lang.reflect.Type;
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+import java.util.*;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.reflect.TypeToken;
+import org.bukkit.plugin.java.JavaPlugin;
+
+public class PlayerJoinListener implements Listener {
+
+    private final File jsonFile;
+    private final Gson gson = new GsonBuilder().setPrettyPrinting().create();
+    private final DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
+
+    public PlayerJoinListener(JavaPlugin plugin) {
+        this.jsonFile = new File(plugin.getDataFolder(), "passes.json");
+    }
+
+    @EventHandler
+    public void onPlayerJoin(PlayerJoinEvent event) {
+        String nickname = event.getPlayer().getName();
+
+        List<PlayerPass> passes = new ArrayList<>();
+
+        if (jsonFile.exists()) {
+            try (Reader reader = new FileReader(jsonFile)) {
+                Type listType = new TypeToken<List<PlayerPass>>() {}.getType();
+                passes = gson.fromJson(reader, listType);
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+
+        boolean exists = passes.stream().anyMatch(p -> p.getNickname().equalsIgnoreCase(nickname));
+        if (!exists) {
+            LocalDate now = LocalDate.now();
+            PlayerPass newPass = new PlayerPass();
+            newPass.setNickname(nickname);
+            newPass.setLastPaymentDate(now.format(formatter));
+            newPass.setPassValidUntil(now.format(formatter));
+            passes.add(newPass);
+
+            // Сохранить обратно
+            try (Writer writer = new FileWriter(jsonFile)) {
+                gson.toJson(passes, writer);
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+}

src/main/java/org/joutak/joutaktemplate/data/PlayerPass.java

@@ -0,0 +1,11 @@
+package org.joutak.joutaktemplate.data;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class PlayerPass {
+    private String nickname;
+    private String lastPaymentDate;
+    private String passValidUntil;
+}

src/main/resources/plugin.yml

@@ -1,6 +1,8 @@
 name: JouTakTemplate
-version: '${project.version}'
+version: 1.0-SNAPSHOT
 main: org.joutak.joutaktemplate.JouTakTemplate
-api-version: '1.20'
+api-version: 1.20
 commands:
-  joutest: {}
+  givepass:
+    description: Раздаёт проходки игрокам на N дней
+    usage: /givepass <days>