var displayedMenu = "";
var hamburgerShown = false;
let width = screen.width;
var isMobile = width < 1024;

function toggleMenu(button) {
  if (displayedMenu === button.id.split("-")[0]) {
    button.className = button.className.replace(
      " text-blue-500 bg-stone-200 sm:bg-transparent",
      " text-gray-900"
    );
    hideMenu(button.id.split("-")[0]);
    button.lastElementChild.className = button.lastElementChild.className.replace(
      "rotate-0",
      "-rotate-90"
    );
    displayedMenu = "";
  } else {
    showMenu(button.id.split("-")[0]);
    button.lastElementChild.className = button.lastElementChild.className.replace(
      "-rotate-90",
      "rotate-0"
    );
    button.className = button.className.replace(
      " text-gray-900",
      " text-blue-500 bg-stone-200 sm:bg-transparent"
    );
    displayedMenu = button.id.split("-")[0];
  }
}

function handleClick(button) {
  if (button.id === "hamburger-btn" || button.id === "close-hamburger-btn") {
    toggleHamburger();
  }
  if (button.id.indexOf("menu") !== -1) {
    toggleMenu(button);
  }
}

function toggleHamburger() {
  if (hamburgerShown) {
    hideHamburger();
    hamburgerShown = false;
  } else {
    showHamburger();
    hamburgerShown = true;
  }
}

function showMenu(menuName) {
  var menuId = menuName + (isMobile ? "-mobile-menu" : "-menu");
  var menuBtnId = menuName + (isMobile ? "-mobile-menu" : "-menu");
  var menuElement = document.getElementById(menuId);
  menuElement.className = menuElement.className.replace(" hidden", "");
  setTimeout(function () {
    menuElement.className = menuElement.className.replace(
      "duration-200 ease-in opacity-0 -translate-y-1",
      "duration-150 ease-out opacity-1 -translate-y-0"
    );
  }, 10);
}

function hideMenu(menuName) {
  var menuId = menuName + (isMobile ? "-mobile-menu" : "-menu");
  var menuElement = document.getElementById(menuId);
  menuElement.className = menuElement.className.replace(
    "duration-150 ease-out opacity-1 -translate-y-0",
    "duration-200 ease-in opacity-0 -translate-y-1"
  );
  setTimeout(function () {
    menuElement.className = menuElement.className + " hidden";
  }, 300);
}

function showHamburger() {
  document.getElementById("header-container").className = "overflow-hidden";
  document.getElementById("hamburger").className =
    "fixed z-20 top-0 inset-x-0 transition transform origin-top-right";
  document.getElementById("hamburger-btn").className =
    "hidden lg:hidden inline-flex items-center justify-center p-2 rounded-md text-gray-400 hover:text-gray-500 hover:bg-gray-100 focus:outline-none focus:bg-gray-100 focus:text-gray-500 transition duration-150 ease-in-out my-2";
  document.getElementById("close-hamburger-btn").className =
    "inline-flex items-center justify-center p-2 rounded-md text-gray-400 hover:text-gray-500 hover:bg-gray-100 focus:outline-none focus:bg-gray-100 focus:text-gray-500 transition duration-150 ease-in-out my-2";
}

function hideHamburger() {
  document.getElementById("header-container").className = "";
  document.getElementById("hamburger").className =
    "hidden absolute z-20 top-0 inset-x-0 transition transform origin-top-right lg:hidden";
  document.getElementById("hamburger-btn").className =
    "inline-flex items-center justify-center p-2 rounded-md text-gray-400 hover:text-gray-500 hover:bg-gray-100 focus:outline-none focus:bg-gray-100 focus:text-gray-500 transition duration-150 ease-in-out my-2";
  document.getElementById("close-hamburger-btn").className =
    "hidden lg:hidden inline-flex items-center justify-center p-2 rounded-md text-gray-400 hover:text-gray-500 hover:bg-gray-100 focus:outline-none focus:bg-gray-100 focus:text-gray-500 transition duration-150 ease-in-out my-2";
  if (displayedMenu !== "") {
    hideMenu(displayedMenu);
  }
}

window.onload = function () {
  let elements = document.getElementsByTagName("button");
  let buttons = [...elements];
  buttons.forEach((button) => {
    button.addEventListener("click", function () {
      handleClick(button);
    });
  });
  document
    .getElementById("mobile-learn-btn")
    ?.addEventListener("click", toggleMenu);

  // Theme toggle logic
  function setTheme(theme) {
    if (theme === "dark") {
      document.documentElement.classList.add("dark");
      localStorage.setItem("theme", "dark");
      if (document.getElementById("theme-toggle-icon")) document.getElementById("theme-toggle-icon").textContent = "🌙";
      if (document.getElementById("theme-toggle-icon-mobile")) document.getElementById("theme-toggle-icon-mobile").textContent = "🌙";
    } else {
      document.documentElement.classList.remove("dark");
      localStorage.setItem("theme", "light");
      if (document.getElementById("theme-toggle-icon")) document.getElementById("theme-toggle-icon").textContent = "☀️";
      if (document.getElementById("theme-toggle-icon-mobile")) document.getElementById("theme-toggle-icon-mobile").textContent = "☀️";
    }
  }

  // Initial theme
  const userTheme = localStorage.getItem("theme");
  if (userTheme) {
    setTheme(userTheme);
  } else if (window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches) {
    setTheme("dark");
  } else {
    setTheme("light");
  }

  // Toggle event listeners
  const themeToggle = document.getElementById("theme-toggle");
  if (themeToggle) {
    themeToggle.addEventListener("click", function () {
      setTheme(document.documentElement.classList.contains("dark") ? "light" : "dark");
    });
  }
  const themeToggleMobile = document.getElementById("theme-toggle-mobile");
  if (themeToggleMobile) {
    themeToggleMobile.addEventListener("click", function () {
      setTheme(document.documentElement.classList.contains("dark") ? "light" : "dark");
    });
  }
};