// Theme handling
document.addEventListener('DOMContentLoaded', () => {
    const themeToggle = document.getElementById('theme-toggle');
    const html = document.documentElement;
    
    // Initialize toggle state based on current theme
    if (themeToggle) {
        themeToggle.checked = html.classList.contains('dark');
        
        // Handle toggle changes
        themeToggle.addEventListener('change', function() {
            const isDark = this.checked;
            html.classList.toggle('dark', isDark);
            localStorage.setItem('theme', isDark ? 'dark' : 'light');
        });
        
        // Listen for system theme changes
        const mediaQuery = window.matchMedia('(prefers-color-scheme: dark)');
        mediaQuery.addEventListener('change', (e) => {
            if (!localStorage.getItem('theme')) {
                const isDark = e.matches;
                html.classList.toggle('dark', isDark);
                themeToggle.checked = isDark;
            }
        });
    }
});

// Handle search form submission
document.addEventListener('submit', (e) => {
    if (e.target.matches('form[action*="search"]')) {
        const searchInput = e.target.querySelector('input[name="q"]');
        if (!searchInput.value.trim()) {
            e.preventDefault();
        }
    }
});

// Mobile menu toggle with transitions
document.addEventListener('DOMContentLoaded', () => {
    const mobileMenuBtn = document.getElementById('mobileMenuBtn');
    const mobileMenu = document.getElementById('mobileMenu');

    if (mobileMenuBtn && mobileMenu) {
        let isMenuOpen = false;

        const toggleMenu = () => {
            isMenuOpen = !isMenuOpen;
            mobileMenu.classList.toggle('show', isMenuOpen);
            mobileMenuBtn.setAttribute('aria-expanded', isMenuOpen.toString());
            
            // Update icon
            const icon = mobileMenuBtn.querySelector('i');
            icon.classList.remove(isMenuOpen ? 'fa-bars' : 'fa-times');
            icon.classList.add(isMenuOpen ? 'fa-times' : 'fa-bars');
        };

        mobileMenuBtn.addEventListener('click', toggleMenu);

        // Close menu when clicking outside
        document.addEventListener('click', (e) => {
            if (isMenuOpen && !mobileMenu.contains(e.target) && !mobileMenuBtn.contains(e.target)) {
                toggleMenu();
            }
        });

        // Close menu when pressing escape
        document.addEventListener('keydown', (e) => {
            if (isMenuOpen && e.key === 'Escape') {
                toggleMenu();
            }
        });

        // Handle viewport changes
        const mediaQuery = window.matchMedia('(min-width: 1024px)');
        mediaQuery.addEventListener('change', (e) => {
            if (e.matches && isMenuOpen) {
                toggleMenu();
            }
        });
    }
});

// User dropdown toggle
const userMenuBtn = document.getElementById('userMenuBtn');
const userDropdown = document.getElementById('userDropdown');

if (userMenuBtn && userDropdown) {
    userMenuBtn.addEventListener('click', (e) => {
        e.stopPropagation();
        userDropdown.classList.toggle('active');
    });

    // Close dropdown when clicking outside
    document.addEventListener('click', (e) => {
        if (!userMenuBtn.contains(e.target) && !userDropdown.contains(e.target)) {
            userDropdown.classList.remove('active');
        }
    });

    // Close dropdown when pressing escape
    document.addEventListener('keydown', (e) => {
        if (e.key === 'Escape') {
            userDropdown.classList.remove('active');
        }
    });
}

// Handle flash messages
document.addEventListener('DOMContentLoaded', () => {
    const alerts = document.querySelectorAll('.alert');
    alerts.forEach(alert => {
        setTimeout(() => {
            alert.style.opacity = '0';
            setTimeout(() => alert.remove(), 300);
        }, 5000);
    });
});

// Initialize tooltips
document.addEventListener('DOMContentLoaded', () => {
    const tooltips = document.querySelectorAll('[data-tooltip]');
    tooltips.forEach(tooltip => {
        tooltip.addEventListener('mouseenter', (e) => {
            const text = e.target.getAttribute('data-tooltip');
            const tooltipEl = document.createElement('div');
            tooltipEl.className = 'absolute z-50 px-2 py-1 text-sm text-white bg-gray-900 rounded tooltip';
            tooltipEl.textContent = text;
            document.body.appendChild(tooltipEl);
            
            const rect = e.target.getBoundingClientRect();
            tooltipEl.style.top = rect.bottom + 5 + 'px';
            tooltipEl.style.left = rect.left + (rect.width - tooltipEl.offsetWidth) / 2 + 'px';
        });
        
        tooltip.addEventListener('mouseleave', () => {
            const tooltips = document.querySelectorAll('.tooltip');
            tooltips.forEach(t => t.remove());
        });
    });
});