(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
     */
    let navbarlinks = select("#navbar .scrollto", true);
    const navbarlinksActive = () => {
        let 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",
        });
    };

    /**
     * Toggle .header-scrolled class to #header when page is scrolled
     */
    let selectHeader = select("#header");
    if (selectHeader) {
        const headerScrolled = () => {
            if (window.scrollY > 100) {
                selectHeader.classList.add("header-scrolled");
            } else {
                selectHeader.classList.remove("header-scrolled");
            }
        };
        window.addEventListener("load", headerScrolled);
        onscroll(document, headerScrolled);
    }

    /**
     * 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);
            }
        }
    });

    /**
     * Preloader
     */
    let preloader = select("#preloader");
    if (preloader) {
        window.addEventListener("load", () => {
            preloader.remove();
        });
    }

    /**
     * Clients Slider
     */

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

            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",
    });
})();