[ Avaa Bypassed ]

<?php
class PrevWordCallbackHandler extends CallBackhandler {
    public static $key= "prevWord";
    public static $spliter= "-";

    function execute() {
        $wordAndIndex = explode(static::$spliter,$this->data);
        $searchedWord = $wordAndIndex[0];
        $this->currentWordIndex = $wordAndIndex[1];
        $this->searchedWord = $searchedWord;
        $this->translations = $this->getTG()->getDB()->getTrnslations(
            $searchedWord, $this->getTG()->getLang($searchedWord)
        );
        $this->updateMessage($this->translations[$this->currentWordIndex-1]);
    }
    public function getParent() : EvaluationSystem{
        return parent::getParent();
    }
    public function getTG() : TranslateGerman {
        return parent::getSM();
    }
    private function hasPrev(){
        return $this->currentWordIndex > 1;
    }
    
    private function updateMessage($word)
    {
        $likeButton = $this->getTG()->getButtonService()->findButton(LikeWordCallbackHandler::$key);
        $dislikeButton = $this->getTG()->getButtonService()->findButton(DislikeWordCallbackHandler::$key);
        $prevButton = $this->getTG()->getButtonService()->findButton(PrevWordCallbackHandler::$key);

        $likeButton->setData($word['id']);
        $likeButton->setText("👍 ".$word['plusRate']);
        $dislikeButton->setData($word['id']);
        $dislikeButton->setText("👎 ".$word['minusRate']);
        $prevButtonData = $this->searchedWord.NextWordCallbackHandler::$spliter.($this->currentWordIndex-1);
        $prevButton->setData($prevButtonData);
   
        if(!$this->hasPrev()){
            $this->getTG()->getButtonService()->deleteButton(PrevWordCallbackHandler::$key);
        }

        $nextButton = $this->getTG()->getButtonService()->findButton(NextWordCallbackHandler::$key);
        $nextButtonData = $this->searchedWord.NextWordCallbackHandler::$spliter.($this->currentWordIndex-1);
        $nextButton->setData($nextButtonData);
        $nextButton->setText("کلمه بعدی");
        if(!$nextButton->getUsed()){
            $this->getTG()->getButtonService()->addButton($nextButton);
            
        }

        $this->getTG()->getButtonService()->rebuildKeyboard();
        $this->getTG()->editMultpleButtonsMessage(
            $this->getTG()->styleTranslation($word),
            $this->getTG()->getButtonService()->getKeyboardMarkedup()
        );
    }
}
?>