// Script for dynamic content loading
document.addEventListener('DOMContentLoaded', function() {
    // Content container where pages will be loaded
    const contentContainer = document.getElementById('dynamic-content');
    if (!contentContainer) return;

    // Function to load page content
    window.loadPage = function(pageName) {
        // Add .html extension if not provided
        if (!pageName.endsWith('.html')) {
            pageName += '.html';
        }

        // Fetch the requested page
        fetch(pageName)
            .then(response => {
                if (!response.ok) {
                    throw new Error(`HTTP error! Status: ${response.status}`);
                }
                return response.text();
            })
            .then(html => {
                // Extract the content from the HTML (assuming each page has its main content in a div)
                const parser = new DOMParser();
                const doc = parser.parseFromString(html, 'text/html');
                
                // Look for the main content in the page
                // This assumes each page has its main content within a main tag or a specific div
                const mainContent = doc.querySelector('main') || doc.querySelector('.min-h-screen');
                
                if (mainContent) {
                    // Replace the content in the container
                    contentContainer.innerHTML = mainContent.innerHTML;
                    
                    // Update the URL without refreshing
                    history.pushState({page: pageName}, '', `?page=${pageName}`);
                    
                    // Scroll to top
                    window.scrollTo(0, 0);
                    
                    // Update active state in navigation
                    updateActiveNavLink(pageName);
                } else {
                    contentContainer.innerHTML = '<p>Could not load content. Please try again.</p>';
                }
            })
            .catch(error => {
                console.error('Error loading page:', error);
                contentContainer.innerHTML = `<p>Error loading page: ${error.message}</p>`;
            });
            
        return false; // Prevent default link behavior
    };

    // Function to update active state in navigation
    function updateActiveNavLink(pageName) {
        // Remove active class from all nav links
        document.querySelectorAll('.nav-link').forEach(link => {
            link.classList.remove('active', 'text-accent');
            link.classList.add('text-gray-600');
        });
        
        // Add active class to current page link
        const activeLink = document.querySelector(`.nav-link[data-page="${pageName.replace('.html', '')}"]`);
        if (activeLink) {
            activeLink.classList.add('active', 'text-accent');
            activeLink.classList.remove('text-gray-600');
        }
    }

    // Handle browser back/forward buttons
    window.addEventListener('popstate', function(event) {
        if (event.state && event.state.page) {
            loadPage(event.state.page);
        } else {
            // Default to index/home if no state
            contentContainer.innerHTML = ''; // Reset content
            location.reload(); // Reload the page to show the default view
        }
    });

    // Check URL on page load to see if a specific page was requested
    const urlParams = new URLSearchParams(window.location.search);
    const pageParam = urlParams.get('page');
    
    if (pageParam) {
        loadPage(pageParam);
    }
});