/**
 * Main JavaScript file for argobox.com
 * Handles animations, interactions, and dynamic content
 */

document.addEventListener('DOMContentLoaded', function() {
    // Initialize all website functionality
    initNavigation();
    initParticlesAndIcons();
    initTerminalTyping();
    updateYear();
});

/**
 * Set up navigation functionality - mobile menu and scroll spy
 */
function initNavigation() {
    const menuToggle = document.querySelector('.menu-toggle');
    const navMenu = document.querySelector('.nav-menu');
    const navLinks = document.querySelectorAll('.nav-link');
    
    if (menuToggle && navMenu) {
        // Toggle mobile menu
        menuToggle.addEventListener('click', () => {
            toggleMobileMenu();
        });

        // Close mobile menu when clicking outside
        document.addEventListener('click', (e) => {
            if (navMenu.classList.contains('show') && 
                !navMenu.contains(e.target) && 
                !menuToggle.contains(e.target)) {
                toggleMobileMenu();
            }
        });
        
        // Close mobile menu when link is clicked
        navLinks.forEach(link => {
            link.addEventListener('click', () => {
                if (window.innerWidth <= 768 && navMenu.classList.contains('show')) {
                    toggleMobileMenu();
                }
            });
        });
        
        // Handle resize events
        window.addEventListener('resize', () => {
            if (window.innerWidth > 768 && navMenu.classList.contains('show')) {
                navMenu.classList.remove('show');
                updateMenuIcon(false);
            }
        });
    }

    // Toggle function for mobile menu
    function toggleMobileMenu() {
        navMenu.classList.toggle('show');
        updateMenuIcon(navMenu.classList.contains('show'));
        
        // Prevent body scrolling when menu is open
        if (navMenu.classList.contains('show')) {
            document.body.style.overflow = 'hidden';
        } else {
            document.body.style.overflow = '';
        }
    }
    
    // Update menu icon based on menu state
    function updateMenuIcon(isOpen) {
        const icon = menuToggle.querySelector('i');
        if (isOpen) {
            icon.classList.remove('fa-bars');
            icon.classList.add('fa-times');
        } else {
            icon.classList.remove('fa-times');
            icon.classList.add('fa-bars');
        }
    }

    // Scroll spy for navigation
    window.addEventListener('scroll', () => {
        const sections = document.querySelectorAll('section');
        
        let current = '';
        sections.forEach(section => {
            const sectionTop = section.offsetTop;
            if (window.scrollY >= sectionTop - 100) {
                current = section.getAttribute('id');
            }
        });

        navLinks.forEach(link => {
            link.classList.remove('active');
            if (link.getAttribute('href').substring(1) === current) {
                link.classList.add('active');
            }
        });
    });
}

/**
 * Create background particles and floating tech icons
 */
function initParticlesAndIcons() {
    createBackgroundParticles();
    createFloatingIcons();
}

/**
 * Optimize images for better mobile performance
 */
function optimizeImagesForMobile() {
    if (window.innerWidth <= 768) {
        // Reduce particles count on mobile for better performance
        createBackgroundParticles(15); // Fewer particles
    } else {
        createBackgroundParticles(50); // Normal number of particles
    }
}

/**
 * Create animated background particles
 */
function createBackgroundParticles(count = 50) {
    const particlesContainer = document.getElementById('particles-container');
    
    if (!particlesContainer) return;
    
    // Clear existing particles
    particlesContainer.innerHTML = '';
    
    // Create particles
    for (let i = 0; i < count; i++) {
        const particle = document.createElement('div');
        particle.classList.add('particle');
        
        // Random size between 2 and 6px
        const size = Math.random() * 4 + 2;
        particle.style.width = `${size}px`;
        particle.style.height = `${size}px`;
        
        // Random position
        particle.style.left = `${Math.random() * 100}%`;
        particle.style.top = `${Math.random() * 100}%`;
        
        // Random opacity between 0.1 and 0.3
        particle.style.opacity = (Math.random() * 0.2 + 0.1).toString();
        
        // Animation properties
        particle.style.animation = `float-particle ${Math.random() * 20 + 10}s linear infinite`;
        particle.style.animationDelay = `${Math.random() * 10}s`;
        
        particlesContainer.appendChild(particle);
    }
}

/**
 * Initialize terminal typing animation
 */
function initTerminalTyping() {
    const cursor = document.querySelector('.cursor');
    if (cursor) {
        setInterval(() => {
            cursor.style.opacity = cursor.style.opacity === '0' ? '1' : '0';
        }, 600);
    }
}

/**
 * Update copyright year in the footer
 */
function updateYear() {
    const yearElement = document.getElementById('current-year');
    if (yearElement) {
        yearElement.textContent = new Date().getFullYear();
    }
}

/**
 * Create and initialize floating icons in the hero section
 */
function createFloatingIcons() {
    // Implemented if needed for mobile
}

// Initialize responsive behaviors
window.addEventListener('resize', () => {
    optimizeImagesForMobile();
});

// Call once on page load
optimizeImagesForMobile();

// Contact Form Handler
const contactForm = document.getElementById('contact-form');
if (contactForm) {
    contactForm.addEventListener('submit', async (e) => {
        e.preventDefault();
        
        const submitButton = contactForm.querySelector('button[type="submit"]');
        const originalButtonText = submitButton.innerHTML;
        
        try {
            submitButton.disabled = true;
            submitButton.innerHTML = '<i class="fas fa-spinner fa-spin"></i> Sending...';
            
            const formData = new FormData(contactForm);
            const data = {
                name: formData.get('name'),
                email: formData.get('email'),
                subject: formData.get('subject'),
                message: formData.get('message')
            };
            
            const response = await fetch('/contact', {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json'
                },
                body: JSON.stringify(data)
            });
            
            const result = await response.json();
            
            if (response.ok) {
                // Show success message
                const successMessage = document.createElement('div');
                successMessage.className = 'alert alert-success';
                successMessage.innerHTML = '<i class="fas fa-check-circle"></i> Message sent successfully! We\'ll get back to you soon.';
                contactForm.insertBefore(successMessage, submitButton);
                contactForm.reset();
                
                // Remove success message after 5 seconds
                setTimeout(() => {
                    successMessage.remove();
                }, 5000);
            } else {
                throw new Error(result.error || 'Failed to send message');
            }
            
        } catch (error) {
            console.error('Error sending email:', error);
            
            // Show error message
            const errorMessage = document.createElement('div');
            errorMessage.className = 'alert alert-error';
            errorMessage.innerHTML = '<i class="fas fa-exclamation-circle"></i> Failed to send message. Please try again later.';
            contactForm.insertBefore(errorMessage, submitButton);
            
            // Remove error message after 5 seconds
            setTimeout(() => {
                errorMessage.remove();
            }, 5000);
            
        } finally {
            submitButton.disabled = false;
            submitButton.innerHTML = originalButtonText;
        }
    });
}