(function() {
  "use strict";

  /**
   * Easy selector helper function
   */
  const select = (el, all = false) => {
    el = el.trim()
    if (all) {
      return [...document.querySelectorAll(el)]
    } else {
      return document.querySelector(el)
    }
  }

  /**
   * Easy event listener function
   */
  const on = (type, el, listener, all = false) => {
    let selectEl = select(el, all)
    if (selectEl) {
      if (all) {
        selectEl.forEach(e => e.addEventListener(type, listener))
      } else {
        selectEl.addEventListener(type, listener)
      }
    }
  }

  /**
   * Easy on scroll event listener
   */
  const onscroll = (el, listener) => {
    el.addEventListener('scroll', listener)
  }

  /**
   * Navbar links active state on scroll
   */
	function getElementOffsetInParentFrame(element) {
		// Get the element's bounding rectangle relative to the iframe's window
		let rect = element.getBoundingClientRect();

		// Get the iframe element from the parent window
		let iframeElement = window.frameElement;

		// Get the iframe's position relative to the parent window
		let iframeRect = iframeElement.getBoundingClientRect();

		// Calculate the element's offset in relation to the parent window
		let offsetTop = rect.top + iframeRect.top + window.scrollY;
		let offsetLeft = rect.left + iframeRect.left + window.scrollX;
		let offsetHeight = rect.height;

		return { top: offsetTop, left: offsetLeft, height: offsetHeight };
	}

	let navbarlinks = select('#navbar .scrollto', true);

	const navbarlinksActive = () => {
		let position;

		// Check if running inside an iframe
		if (window.self !== window.top) {
			let iframe_element = window.parent.document.getElementsByTagName('iframe');

			position = iframe_element ? iframe_element[0].contentWindow.scrollY + 200 : 0;

			navbarlinks.forEach(navbarlink => {
				if (!navbarlink.hash) return;
				let section = select(navbarlink.hash);
				if (!section) return;

				let element = section;
				let offset = getElementOffsetInParentFrame(element);

				if (position >= offset.top && position <= (offset.top + offset.height)) {
					navbarlink.classList.add('active');
				} else {
					navbarlink.classList.remove('active');
				}
			});

		} else {
			position = window.scrollY + 200;

			navbarlinks.forEach(navbarlink => {
				if (!navbarlink.hash) return
				let section = select(navbarlink.hash)
				if (!section) return

				if (position >= section.offsetTop && position <= (section.offsetTop + section.offsetHeight)) {
					navbarlink.classList.add('active')
				} else {
					navbarlink.classList.remove('active')
				}
			})

		}
	}
  window.addEventListener('load', navbarlinksActive)
  onscroll(document, navbarlinksActive)

  /**
   * Scrolls to an element with header offset
   */
  const scrollto = (el) => {
    let header = select('#header')
    let offset = header.offsetHeight

    let elementPos = select(el).offsetTop
    window.scrollTo({
      top: elementPos - offset,
      behavior: 'smooth'
    })
  }

  /**
   * Back to top button
   */
  let backtotop = select('.back-to-top')
  if (backtotop) {
    const toggleBacktotop = () => {
      if (window.scrollY > 100) {
        backtotop.classList.add('active')
      } else {
        backtotop.classList.remove('active')
      }
    }
    window.addEventListener('load', toggleBacktotop)
    onscroll(document, toggleBacktotop)
  }

  /**
   * Mobile nav toggle
   */
  on('click', '.mobile-nav-toggle', function(e) {
    select('#navbar').classList.toggle('navbar-mobile')
    this.classList.toggle('bi-list')
    this.classList.toggle('bi-x')
  })

  /**
   * Mobile nav dropdowns activate
   */
  on('click', '.navbar .dropdown > a', function(e) {
    if (select('#navbar').classList.contains('navbar-mobile')) {
      e.preventDefault()
      this.nextElementSibling.classList.toggle('dropdown-active')
    }
  }, true)

  /**
   * Scrool with ofset on links with a class name .scrollto
   */
  on('click', '.scrollto', function(e) {
    if (select(this.hash)) {
      e.preventDefault()

      let navbar = select('#navbar')
      if (navbar.classList.contains('navbar-mobile')) {
        navbar.classList.remove('navbar-mobile')
        let navbarToggle = select('.mobile-nav-toggle')
        navbarToggle.classList.toggle('bi-list')
        navbarToggle.classList.toggle('bi-x')
      }
      scrollto(this.hash)
    }
  }, true)

  /**
   * Scroll with ofset on page load with hash links in the url
   */
  window.addEventListener('load', () => {
    if (window.location.hash) {
      if (select(window.location.hash)) {
        scrollto(window.location.hash)
      }
    }
  });

  /**
   * Porfolio isotope and filter
   */
  window.addEventListener('load', () => {
    let portfolioContainer = select('.portfolio-container');
    if (portfolioContainer) {
      let portfolioIsotope = new Isotope(portfolioContainer, {
        itemSelector: '.portfolio-item',
        layoutMode: 'fitRows'
      });

      let portfolioFilters = select('#portfolio-flters li', true);

      on('click', '#portfolio-flters li', function(e) {
        e.preventDefault();
        portfolioFilters.forEach(function(el) {
          el.classList.remove('filter-active');
        });
        this.classList.add('filter-active');

        portfolioIsotope.arrange({
          filter: this.getAttribute('data-filter')
        });
        portfolioIsotope.on('arrangeComplete', function() {
          AOS.refresh()
        });
      }, true);
    }

  });

  /**
   * Initiate portfolio lightbox
   */
  const portfolioLightbox = GLightbox({
    selector: '.portfolio-lightbox'
  });

  /**
   * Portfolio details slider
   */
  new Swiper('.portfolio-details-slider', {
    speed: 400,
    loop: true,
    autoplay: {
      delay: 5000,
      disableOnInteraction: false
    },
    pagination: {
      el: '.swiper-pagination',
      type: 'bullets',
      clickable: true
    }
  });

  /**
   * Clients Slider
   */
  new Swiper('.clients-slider', {
    speed: 400,
    loop: true,
    autoplay: {
      delay: 5000,
      disableOnInteraction: false
    },
    slidesPerView: 'auto',
    pagination: {
      el: '.swiper-pagination',
      type: 'bullets',
      clickable: true
    },
    breakpoints: {
      320: {
        slidesPerView: 2,
        spaceBetween: 40
      },
      480: {
        slidesPerView: 3,
        spaceBetween: 60
      },
      640: {
        slidesPerView: 4,
        spaceBetween: 80
      },
      992: {
        slidesPerView: 6,
        spaceBetween: 120
      }
    }
  });

  /**
   * Animation on scroll
   */
  window.addEventListener('load', () => {
    AOS.init({
      duration: 1000,
      easing: "ease-in-out",
      once: true,
      mirror: false
    });
  });

})()