Initial commit: EssentialsC v1.1.0

src/main/java/cn/infstar/essentialsC/commands/SeenCommand.java

@@ -0,0 +1,56 @@
+package cn.infstar.essentialsC.commands;
+
+import org.bukkit.Bukkit;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Map;
+
+public class SeenCommand extends BaseCommand {
+    
+    public SeenCommand() {
+        super("essentialsc.command.seen");
+    }
+    
+    @Override
+    protected boolean execute(@NotNull Player player, String[] args) {
+        if (args.length == 0) {
+            player.sendMessage(getLang().getString("messages.seen-usage"));
+            return true;
+        }
+        
+        OfflinePlayer target = Bukkit.getOfflinePlayer(args[0]);
+        if (!target.hasPlayedBefore() && !target.isOnline()) {
+            player.sendMessage(getLang().getString("messages.player-not-found", Map.of("player", args[0])));
+            return true;
+        }
+        
+        StringBuilder info = new StringBuilder();
+        info.append("§6========== §e玩家信息 §6==========\n");
+        info.append("§7玩家名称: §f").append(target.getName()).append("\n");
+        
+        if (target.isOnline()) {
+            info.append("§7状态: §a在线\n");
+            Player onlinePlayer = target.getPlayer();
+            if (onlinePlayer != null) {
+                info.append("§7所在世界: §f").append(onlinePlayer.getWorld().getName()).append("\n");
+            }
+        } else {
+            info.append("§7状态: §c离线\n");
+            long lastSeen = target.getLastSeen();
+            if (lastSeen > 0) {
+                SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+                info.append("§7最后上线: §f").append(sdf.format(new Date(lastSeen))).append("\n");
+            }
+        }
+        
+        info.append("§7首次加入: §f").append(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date(target.getFirstPlayed()))).append("\n");
+        info.append("§6=============================");
+        
+        player.sendMessage(info.toString());
+        return true;
+    }
+}