Add /realname command (#19)

* Add /realname command

* Better message for /realname

src/main/java/net/laboulangerie/laboulangeriecore/LaBoulangerieCore.java

@@ -25,6 +25,7 @@
 import net.laboulangerie.laboulangeriecore.betonquest.RankCondition;
 import net.laboulangerie.laboulangeriecore.commands.CoreCommand;
 import net.laboulangerie.laboulangeriecore.commands.LinkCommands;
+import net.laboulangerie.laboulangeriecore.commands.RealNameCommand;
 import net.laboulangerie.laboulangeriecore.commands.SeenCmd;
 import net.laboulangerie.laboulangeriecore.commands.SpawnCmd;
 import net.laboulangerie.laboulangeriecore.commands.SpeedCommand;
@@ -143,6 +144,7 @@ public void onEnable() {
         getCommand("seen").setExecutor(new SeenCmd());
         getCommand("event").setExecutor(new EventCmd());
         getCommand("speed").setExecutor(new SpeedCommand());
+        getCommand("realname").setExecutor(new RealNameCommand());
         // Link or simple message commands
         getCommand("wiki").setExecutor(new LinkCommands());
         getCommand("youtube").setExecutor(new LinkCommands());

src/main/java/net/laboulangerie/laboulangeriecore/commands/RealNameCommand.java

@@ -0,0 +1,64 @@
+package net.laboulangerie.laboulangeriecore.commands;
+
+import java.util.List;
+import java.util.ArrayList;
+
+import org.bukkit.Bukkit;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabCompleter;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import net.laboulangerie.laboulangeriecore.core.UsersData;
+
+public class RealNameCommand implements CommandExecutor, TabCompleter {
+
+    @Override
+    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command cmd, @NotNull String alias,
+            @NotNull String[] args) {
+        if (args.length != 1) {
+            return false;
+        }
+
+        String nick = args[0];
+
+        for (Player player : Bukkit.getServer().getOnlinePlayers()) {
+            YamlConfiguration userData = UsersData.getOrCreate(player);
+            String playerNick = userData.getString("nick");
+
+            if (playerNick != null && playerNick.equals(nick)) {
+                sender.sendMessage(nick + " est joué par " + player.getName());
+                return true;
+            }
+        }
+
+        sender.sendMessage("Nick inconnu.");
+        return true;
+    }
+
+    @Override
+    public @Nullable List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command cmd,
+            @NotNull String alias, @NotNull String[] args) {
+        if (args.length != 1) {
+            return null;
+        }
+
+        List<String> onlineNicks = new ArrayList<>();
+
+        for (Player player : Bukkit.getServer().getOnlinePlayers()) {
+            YamlConfiguration userData = UsersData.getOrCreate(player);
+            String nick = userData.getString("nick");
+
+            if (nick != null) {
+                onlineNicks.add(nick);
+            }
+        }
+
+        return onlineNicks;
+    }
+
+}

src/main/resources/plugin.yml

@@ -73,6 +73,9 @@ commands:
     speed:
         description: Toggle speed paths
         usage: /speed
+    realname:
+        description: Get the real name of a player
+        usage: /realname <nickname>
 permissions:
     laboulangeriecore.*:
         default: op