PlaceholderAPI is supported

README.md

@@ -20,6 +20,7 @@ Examples and tutorials can be found on the [RankSystem Wiki](https://github.com/
 - Multi-rank inheritance system to allow you to inherit rank permissions
 - Temp-ranks
 - Temp-permissions
+- PlaceholderAPI Support
 - SQLite3 Provider Support
 - MySQL Provider Support
 - Easy Rank Creation / Edit System

src/IvanCraft623/RankSystem/RankSystem.php

@@ -35,9 +35,11 @@
 use IvanCraft623\RankSystem\provider\Provider;
 use IvanCraft623\RankSystem\provider\libasynql as libasynqlProvider;
 
+use IvanCraft623\RankSystem\utils\PlaceholderUtils;
 use JackMD\ConfigUpdater\ConfigUpdater;
 use JackMD\UpdateNotifier\UpdateNotifier;
 
+use MohamadRZ4\Placeholder\PlaceholderAPI;
 use pocketmine\permission\PermissionManager;
 use pocketmine\permission\DefaultPermissions;
 use pocketmine\plugin\DisablePluginException;
@@ -81,6 +83,10 @@ public function onEnable() : void {
 			PacketHooker::register($this);
 		}
 
+        if ($this->getServer()->getPluginManager()->getPlugin("PlaceholderAPI") !== null) {
+            PlaceholderAPI::getInstance()->registerExpansion(new PlaceholderUtils($this));
+        }
+
 		$this->loadCommands();
 		$this->loadListeners();
 		$this->loadProvider();

src/IvanCraft623/RankSystem/utils/PlaceholderUtils.php

@@ -0,0 +1,57 @@
+<?php
+
+namespace IvanCraft623\RankSystem\utils;
+
+use IvanCraft623\RankSystem\RankSystem;
+use IvanCraft623\RankSystem\session\SessionManager;
+use MohamadRZ4\Placeholder\expansion\PlaceholderExpansion;
+use pocketmine\player\Player;
+
+class PlaceholderUtils extends PlaceholderExpansion
+{
+
+    private RankSystem $rankSystem;
+
+    public function __construct(RankSystem $rankSystem)
+    {
+        $this->rankSystem = $rankSystem;
+    }
+
+    public function getIdentifier(): string
+    {
+        return "RankSystem";
+    }
+
+    public function getAuthor(): string
+    {
+        return "IvanCraft623";
+    }
+
+    public function getVersion(): string
+    {
+        return "1.0.0";
+    }
+
+
+    public function onPlaceholderRequest(?Player $player, string $params): ?string
+    {
+        if ($player === null) return null;
+
+        $ranksystem = $this->rankSystem;
+        $sessionmanager = $ranksystem->getSessionManager();
+
+        $session = $sessionmanager->get("IvanCraft236");
+        if ($session === null) return null;
+
+        switch ($params) {
+            case "ranks":
+                return implode(", ", $session->getRanks());
+            case "highest_rank":
+                return $session->getHighestRank()->getName();
+            case "nametag":
+                return $session->getNameTagFormat();
+            default:
+                return null;
+        }
+    }
+}