"use strict";
function setActiveLink() {
    const sections = document.querySelectorAll("section");
    const navLinks = document.querySelectorAll("nav .nav-link");
    const observer = new IntersectionObserver((entries) => {
        entries.forEach((entry) => {
            if (entry.intersectionRatio > 0.5) {
                const sectionId = entry.target.getAttribute("id");
                const navLink = document.querySelector(`nav a[href="#${sectionId}"]`);
                navLinks.forEach((link) => link.classList.remove("active"));
                navLink.classList.add("active");
            }
        });
    });
    sections.forEach((section) => observer.observe(section));

    // add event listener to each link that updates the active class when clicked
    navLinks.forEach((link) => {
        link.addEventListener("click", (event) => {
            event.preventDefault();
            const clickedLink = event.target;
            const sectionId = clickedLink.getAttribute("href").slice(1);
            const section = document.getElementById(sectionId);
            navLinks.forEach((link) => link.classList.remove("active"));
            clickedLink.classList.add("active");
            section.scrollIntoView({ behavior: 'smooth' });
        });
    });

    // add event listener for scroll events on the main container
    const mainContainer = document.querySelector("main");
    mainContainer.addEventListener("scroll", function() {
        sections.forEach(section => {
            const rect = section.getBoundingClientRect();
            const isVisible = (rect.top <= window.innerHeight/2) && (rect.bottom >= window.innerHeight/2);
            if(isVisible){
                const sectionId = section.getAttribute("id");
                const navLink = document.querySelector(`nav a[href="#${sectionId}"]`);
                navLinks.forEach((link) => link.classList.remove("active"));
                navLink.classList.add("active");
                const activeNavLink = document.querySelector("nav a.active");
                const activeSection = document.querySelector(`section${activeNavLink.getAttribute("href")}`);
                const animateElements = activeSection.querySelectorAll('.fade-in-left, .fade-in-right, .fade-in-fwd, .swing-in-top-fwd');
                const allSections = document.querySelectorAll('section');
                allSections.forEach(section => {
                    if(section !== activeSection) {
                        const animateElements = section.querySelectorAll('.fade-in-left, .fade-in-right, .fade-in-fwd, .swing-in-top-fwd');
                        animateElements.forEach(element => {
                            element.classList.remove('animate');
                            element.classList.add('fade-out');
                            setTimeout(function() {

                            }, 200);

                        })
                    } else {
                        animateElements.forEach(element => {
                            element.classList.remove('fade-out');
                            element.classList.add('animate');
                        });
                    }
                });
            }
        });
    });
}



const openModalButtons = document.querySelectorAll('.project-more');
const closeModalButtons = document.querySelectorAll('.close-modal');
const modals = document.querySelectorAll('.project-modal');
const prevArrows = document.querySelectorAll('.project-modal__arrow.prev');
const nextArrows = document.querySelectorAll('.project-modal__arrow.next');

openModalButtons.forEach(button => {
    button.addEventListener('click', e => {
        const modalId = e.target.dataset.modalId;
        document.getElementById(modalId).classList.add('open');
    });
});

closeModalButtons.forEach(button => {
    button.addEventListener('click', e => {
        e.target.parentElement.parentElement.classList.remove('open');
    });
});

modals.forEach(modal => {
    modal.addEventListener('click', e => {
        if (e.target === modal) modal.classList.remove('open');
    });
});

prevArrows.forEach(arrow => {
    arrow.addEventListener('click', e => {
        const currentModal = e.target.parentElement.parentElement;
        const prevModal = currentModal.previousElementSibling;
        if (prevModal) {
            currentModal.classList.remove('open');
            prevModal.classList.add('open');
        }
    });
});

nextArrows.forEach(arrow => {
    arrow.addEventListener('click', e => {
        const currentModal = e.target.parentElement.parentElement;
        const nextModal = currentModal.nextElementSibling;
        if (nextModal) {
            currentModal.classList.remove('open');
            nextModal.classList.add('open');
        }
    });
});

// Mobile navigation toggle
const aside = document.querySelector('aside');
const mobileNav = document.querySelector('.mobile-nav');

const toggleAside = () => {
    if (aside.classList.contains('animate')) {
        aside.classList.remove('slide-out-left');
        aside.classList.add('slide-in-left');
        mobileNav.classList.add('open');
        aside.classList.remove('animate');
    } else {
        aside.classList.remove('slide-in-left');
        aside.classList.add('slide-out-left');
        mobileNav.classList.remove('open');
        aside.classList.add('animate');
    }
};
mobileNav.addEventListener('click', toggleAside);

document.addEventListener("DOMContentLoaded", function() {
    setActiveLink();
});