PermissionParser: add emitPermissions()

src/pocketmine/permission/PermissionParser.php

@@ -124,4 +124,39 @@ class PermissionParser{
 
 		return new Permission($name, $desc, $default, $children);
 	}
+
+	/**
+	 * @param Permission[] $permissions
+	 *
+	 * @return array
+	 */
+	public static function emitPermissions(array $permissions) : array{
+		$result = [];
+		foreach($permissions as $permission){
+			$result[$permission->getName()] = self::emitPermission($permission);
+		}
+		ksort($result);
+		return $result;
+	}
+
+	private static function emitPermission(Permission $permission) : array{
+		$result = [
+			"description" => $permission->getDescription(),
+			"default" => $permission->getDefault()
+		];
+		$children = [];
+		foreach($permission->getChildren() as $name => $bool){
+			//TODO: really? wtf??? this system is so overengineered it makes my head hurt...
+			$child = PermissionManager::getInstance()->getPermission($name);
+			if($child === null){
+				throw new \UnexpectedValueException("Permission child should be a registered permission");
+			}
+			$children[$name] = self::emitPermission($child);
+		}
+		if(!empty($children)){
+			ksort($children);
+			$result["children"] = $children;
+		}
+		return $result;
+	}
 }