how can i fix an item?

how can I set an item's durability\damage to like a brand new one?
my try :

PHP:

public function execute(CommandSender $sender, string $commandLable, array $args): bool
    {
        if (!$sender instanceof Player) {
            $sender->sendMessage($this->plugin->p);
            return true;
        }
        if ($sender->hasPermission("fix")) {
            $item = $sender->getInventory()->getItemInHand();
            $item->setDamage(1000);
        }else{
            $sender->sendMessage($this->plugin->noperm);
        }
        return true;
    }

 

PHP:

public function execute(CommandSender $sender, string $commandLabel, array $args): bool
{
   if (!$sender instanceof Player) {
      $sender->sendMessage($this->plugin->p);
      return true;
   }
   if ($sender->hasPermission("fix")) {
      $item = $sender->getInventory()->getItemInHand();
      if($item instanceof Tool)
         $item->setDamage($item->getMaxDurability()); // if not then it's 0
   }else{
      $sender->sendMessage($this->plugin->noperm);
   }
   return true;
}


 

Well you're breaking the item there