GoIT Scroller Script

(() => {
  const clickButtonByText = (text) => {
    const button = [...document.querySelectorAll("button")].find(
      (btn) => btn.querySelector("span")?.innerText.trim() === text
    );
    button?.click();
  };

  const clickEnabledButton = (selector) => {
    const btn = document.querySelector(`${selector}:not([disabled])`);
    btn?.click();
  };

  const actions = {
    selectFirstRadioOption: () => {
      const option = document.querySelector('input[type="radio"]:not([disabled])');
      option?.click();
    },

    checkAnswer: () => {
      const button = [...document.querySelectorAll("button")].findLast(
        (btn) => btn.querySelector("span")?.innerText.trim() === "Перевірити"
      );
      button?.click();
    },

    revealAnswer: () => clickButtonByText("Дізнатися відповідь"),
    nextSection: () => clickEnabledButton("#go-to-next-course-element"),
    nextModule: () => clickButtonByText("До наступного модуля"),
    goToPracticalTask: () => clickButtonByText("Перейти до практичного завдання"),
    next: () => clickButtonByText("Далі"),
    nextBlock: () => clickButtonByText("До наступного блоку"),
    scrollToBottom: () => window.scrollTo(0, document.body.scrollHeight),
  };

    const enableButtons = ()=>{
    document.querySelectorAll("button").forEach(btn => {
  btn.disabled = false;
  btn.removeAttribute("disabled");
});
    }

  const handleMutations = () => {
      enableButtons();
    actions.selectFirstRadioOption();
    actions.revealAnswer();
    actions.checkAnswer();
    actions.nextSection();
    actions.nextModule();
    actions.goToPracticalTask();
    actions.next();
    actions.nextBlock();
    actions.scrollToBottom();
  };

  const observer = new MutationObserver(handleMutations);
  observer.observe(document.body, { childList: true, subtree: true });

  console.log("Quiz automation started.");
})();