// Shared JavaScript functions
document.addEventListener('DOMContentLoaded', function() {
    // Initialize dark mode toggle
    const darkModeToggle = document.getElementById('darkModeToggle');
    if (darkModeToggle) {
        darkModeToggle.addEventListener('click', function() {
            document.documentElement.classList.toggle('dark');
            localStorage.setItem('darkMode', document.documentElement.classList.contains('dark'));
        });
    }

    // Check for saved dark mode preference
    if (localStorage.getItem('darkMode') === 'true') {
        document.documentElement.classList.add('dark');
    }

    // Initialize tooltips
    const tooltipElements = document.querySelectorAll('[data-tooltip]');
    tooltipElements.forEach(el => {
        el.addEventListener('mouseenter', showTooltip);
        el.addEventListener('mouseleave', hideTooltip);
    });

    // Smooth scroll for anchor links
    document.querySelectorAll('a[href^="#"]').forEach(anchor => {
        anchor.addEventListener('click', function(e) {
            e.preventDefault();
            document.querySelector(this.getAttribute('href')).scrollIntoView({
                behavior: 'smooth'
            });
        });
    });
});

function showTooltip(e) {
    const tooltipText = this.getAttribute('data-tooltip');
    const tooltip = document.createElement('div');
    tooltip.className = 'absolute z-50 bg-gray-900 text-white text-xs px-2 py-1 rounded whitespace-nowrap';
    tooltip.textContent = tooltipText;
    this.appendChild(tooltip);
    
    const rect = this.getBoundingClientRect();
    tooltip.style.top = `${rect.top - 30}px`;
    tooltip.style.left = `${rect.left + rect.width / 2 - tooltip.offsetWidth / 2}px`;
    
    this.tooltip = tooltip;
}

function hideTooltip() {
    if (this.tooltip) {
        this.tooltip.remove();
    }
}

// Debounce function
function debounce(func, wait, immediate) {
    let timeout;
    return function() {
        const context = this, args = arguments;
        const later = function() {
            timeout = null;
            if (!immediate) func.apply(context, args);
        };
        const callNow = immediate && !timeout;
        clearTimeout(timeout);
        timeout = setTimeout(later, wait);
        if (callNow) func.apply(context, args);
    };
}