document.addEventListener('DOMContentLoaded', function() {
    // Mobile menu toggle
    const mobileMenuButton = document.querySelector('.mobile-menu-button');
    const mobileMenu = document.querySelector('.mobile-menu');

    mobileMenuButton.addEventListener('click', () => {
        mobileMenu.classList.toggle('hidden');
        
        // Update button state
        mobileMenuButton.setAttribute('aria-expanded', !isExpanded);
        
        // Toggle icons
        menuIconOpen.classList.toggle('hidden');
        menuIconClosed.classList.toggle('hidden');
    });

    // Close mobile menu when clicking outside
    document.addEventListener('click', (e) => {
        if (!mobileMenuButton.contains(e.target) && !mobileMenu.contains(e.target)) {
            mobileMenu.classList.add('hidden');
            mobileMenuButton.setAttribute('aria-expanded', 'false');
            menuIconOpen.classList.remove('hidden');
            menuIconClosed.classList.add('hidden');
        }
    });

    // Theme toggle functionality
    function updateTheme(isDark) {
        const html = document.documentElement;
        if (isDark) {
            html.classList.add('dark');
        } else {
            html.classList.remove('dark');
        }
        localStorage.setItem('theme', isDark ? 'dark' : 'light');
    }

    // Desktop theme toggle
    const darkModeToggle = document.getElementById('darkModeToggle');
    darkModeToggle.addEventListener('click', () => {
        const isDark = document.documentElement.classList.contains('dark');
        updateTheme(!isDark);
    });

    // Mobile theme toggle
    const darkModeToggleMobile = document.getElementById('darkModeToggleMobile');
    darkModeToggleMobile.addEventListener('click', () => {
        const isDark = document.documentElement.classList.contains('dark');
        updateTheme(!isDark);
    });

    // Initialize theme
    const savedTheme = localStorage.getItem('theme');
    if (savedTheme) {
        updateTheme(savedTheme === 'dark');
    } else {
        // Default to dark theme
        updateTheme(true);
    }

    // Header scroll behavior
    const header = document.querySelector('header');
    let lastScroll = 0;

    window.addEventListener('scroll', () => {
        const currentScroll = window.pageYOffset;
        
        if (currentScroll <= 0) {
            header.classList.remove('shadow-lg', 'bg-white/95', 'dark:bg-gray-900/95');
            header.style.transform = 'translateY(0)';
            return;
        }

        if (currentScroll > lastScroll && !header.contains(document.activeElement)) {
            // Scrolling down
            header.style.transform = 'translateY(-100%)';
        } else {
            // Scrolling up
            header.style.transform = 'translateY(0)';
            header.classList.add('shadow-lg', 'bg-white/95', 'dark:bg-gray-900/95');
        }

        lastScroll = currentScroll;
    });

    // Menu tab functionality
    const tabButtons = document.querySelectorAll('.tab-button');
    const menuContents = document.querySelectorAll('.menu-content');

    tabButtons.forEach(button => {
        button.addEventListener('click', () => {
            // Remove active state from all buttons
            tabButtons.forEach(btn => {
                btn.classList.remove('bg-pizza-red', 'text-white');
                btn.classList.add('bg-gray-200', 'dark:bg-pizza-darker', 'text-gray-700', 'dark:text-white');
            });

            // Add active state to clicked button
            button.classList.remove('bg-gray-200', 'dark:bg-pizza-darker', 'text-gray-700', 'dark:text-white');
            button.classList.add('bg-pizza-red', 'text-white');

            // Hide all content sections
            menuContents.forEach(content => {
                content.classList.add('hidden');
            });

            // Show selected content
            const targetContent = document.getElementById(`${button.dataset.tab}-content`);
            targetContent.classList.remove('hidden');
        });
    });

    // Price group toggles
    const priceGroups = document.querySelectorAll('.price-group-header');
    
    priceGroups.forEach(group => {
        group.addEventListener('click', () => {
            const content = group.nextElementSibling;
            const arrow = group.querySelector('svg');
            
            // Toggle content visibility
            content.classList.toggle('hidden');
            
            // Rotate arrow
            if (content.classList.contains('hidden')) {
                arrow.style.transform = 'rotate(0deg)';
            } else {
                arrow.style.transform = 'rotate(180deg)';
            }
        });
    });

    // Auto-expand first price group
    const firstPriceGroup = document.querySelector('.price-group-header');
    if (firstPriceGroup) {
        firstPriceGroup.click();
    }

    // Legend hover effect
    const legendContainer = document.querySelector('.legend-container');
    const legend = legendContainer.querySelector('.price-legend');
    
    legendContainer.addEventListener('mouseenter', () => {
        legend.style.opacity = '0';
    });
    
    legendContainer.addEventListener('mouseleave', () => {
        legend.style.opacity = '1';
    });

    // Smooth scroll for menu links
    const menuLinks = document.querySelectorAll('a[href*="#menu-section"]');
    
    menuLinks.forEach(link => {
        link.addEventListener('click', function(e) {
            e.preventDefault();
            console.log('Menu link clicked'); // Debug log
            
            const menuSection = document.getElementById('menu-section');
            if (menuSection) {
                const headerHeight = document.querySelector('header').offsetHeight;
                const menuPosition = menuSection.offsetTop - headerHeight;
                
                window.scrollTo({
                    top: menuPosition,
                    behavior: 'smooth'
                });
            } else {
                console.error('Menu section not found'); // Debug log
            }
        });
    });

    // Language dropdown functionality
    const languageButton = document.getElementById('languageButton');
    const languageDropdown = document.getElementById('languageDropdown');

    if (languageButton && languageDropdown) {
        // Toggle dropdown
        languageButton.addEventListener('click', (e) => {
            e.stopPropagation();
            languageDropdown.classList.toggle('hidden');
        });

        // Close dropdown when clicking outside
        document.addEventListener('click', (e) => {
            if (!languageButton.contains(e.target) && !languageDropdown.contains(e.target)) {
                languageDropdown.classList.add('hidden');
            }
        });

        // Close dropdown when clicking a language option
        languageDropdown.querySelectorAll('a').forEach(link => {
            link.addEventListener('click', () => {
                languageDropdown.classList.add('hidden');
            });
        });
    }

    // Auto-detect browser language
    function detectLanguage() {
        const browserLang = navigator.language.split('-')[0];
        const supportedLangs = ['de', 'en']; // Add your supported languages here
        
        if (!localStorage.getItem('userLanguage')) {
            const detectedLang = supportedLangs.includes(browserLang) ? browserLang : 'de';
            localStorage.setItem('userLanguage', detectedLang);
            
            // Redirect if needed
            const currentLang = document.documentElement.lang;
            if (currentLang !== detectedLang) {
                const newPath = window.location.pathname.replace(`/${currentLang}/`, `/${detectedLang}/`);
                window.location.href = newPath;
            }
        }
    }

    detectLanguage();

    function checkOpenStatus() {
        const now = new Date();
        const currentTime = now.toLocaleTimeString('de-DE', { 
            hour: '2-digit', 
            minute: '2-digit', 
            hour12: false 
        });
        const currentDay = now.toLocaleDateString('de-DE', { weekday: 'long' });

        // Get opening hours from data attributes
        const hoursRows = document.querySelectorAll('.hours-row');
        let isOpen = false;

        hoursRows.forEach(row => {
            const rowDay = row.dataset.day;
            const openTime = row.dataset.open;
            const closeTime = row.dataset.close;

            // Convert times to comparable numbers (e.g., "14:30" -> 1430)
            const currentNum = parseInt(currentTime.replace(':', ''));
            const openNum = parseInt(openTime.replace(':', ''));
            const closeNum = parseInt(closeTime.replace(':', ''));

            if (rowDay === currentDay && currentNum >= openNum && currentNum <= closeNum) {
                isOpen = true;
                row.classList.add('border-2', 'border-status-green');
            } else {
                row.classList.remove('border-2', 'border-status-green');
            }
        });

        // Update status bar
        const statusBar = document.getElementById('status-bar');
        const statusText = document.getElementById('status-text');
        
        if (statusBar && statusText) {
            if (isOpen) {
                statusBar.classList.remove('bg-status-red');
                statusBar.classList.add('bg-status-green');
                statusText.textContent = statusText.dataset.textOpen;
            } else {
                statusBar.classList.remove('bg-status-green');
                statusBar.classList.add('bg-status-red');
                statusText.textContent = statusText.dataset.textClosed;
            }
        }

        return { isOpen, currentDay, currentTime };
    }

    // Update status every minute
    setInterval(checkOpenStatus, 60000);
    // Initial check
    checkOpenStatus();
});