// Mobile Travel Agent Profile - Interactive Features

document.addEventListener('DOMContentLoaded', () => {
    // Initialize Lucide icons
    if (typeof lucide !== 'undefined') {
        lucide.createIcons();
    }

    // Mobile menu functionality
    const mobileMenuBtn = document.querySelector('[onclick="toggleMobileMenu()"]');
    const mobileMenu = document.getElementById('mobileMenu');
    
    if (mobileMenuBtn && mobileMenu) {
        // Close menu when clicking outside
        document.addEventListener('click', (e) => {
            if (!mobileMenu.contains(e.target) && !mobileMenuBtn.contains(e.target)) {
                mobileMenu.classList.add('hidden');
            }
        });

        // Close menu on resize if open
        window.addEventListener('resize', () => {
            if (window.innerWidth >= 768) {
                mobileMenu.classList.add('hidden');
            }
        });
    }

    // Navbar scroll behavior
    let lastScroll = 0;
    const navbar = document.getElementById('navbar');
    
    window.addEventListener('scroll', () => {
        const currentScroll = window.pageYOffset;
        
        // Add/remove shadow based on scroll
        if (currentScroll > 50) {
            navbar.classList.add('shadow-md');
        } else {
            navbar.classList.remove('shadow-md');
        }
        
        // Hide/show navbar on scroll (optional enhancement)
        if (currentScroll > lastScroll && currentScroll > 100) {
            navbar.style.transform = 'translateY(-100%)';
        } else {
            navbar.style.transform = 'translateY(0)';
        }
        
        navbar.style.transition = 'transform 0.3s ease-in-out';
        lastScroll = currentScroll;
    });

    // Intersection Observer for scroll animations
    const observerOptions = {
        root: null,
        rootMargin: '0px',
        threshold: 0.1
    };

    const fadeInObserver = new IntersectionObserver((entries) => {
        entries.forEach(entry => {
            if (entry.isIntersecting) {
                entry.target.style.opacity = '1';
                entry.target.style.transform = 'translateY(0)';
                
                // Add stagger animation to children if applicable
                const staggerContainer = entry.target.querySelector('.stagger-children');
                if (staggerContainer) {
                    staggerContainer.classList.add('animate');
                }
                
                fadeInObserver.unobserve(entry.target);
            }
        });
    }, observerOptions);

    // Observe elements with animation classes
    document.querySelectorAll('.card-hover, .process-step, .testimonial-card').forEach(el => {
        el.style.opacity = '0';
        el.style.transform = 'translateY(20px)';
        el.style.transition = 'opacity 0.6s ease-out, transform 0.6s ease-out';
        fadeInObserver.observe(el);
    });

    // Form handling
    const contactForm = document.getElementById('contactForm');
    if (contactForm) {
        contactForm.addEventListener('submit', handleFormSubmit);
    }

    // Destination select enhancement
    const destinationSelect = document.querySelector('select');
    if (destinationSelect) {
        destinationSelect.addEventListener('change', function() {
            if (this.value && this.value !== 'Select a destination type') {
                this.classList.add('text-gray-900');
            }
        });
    }

    // Smooth scroll polyfill for older browsers
    document.querySelectorAll('a[href^="#"]').forEach(anchor => {
        anchor.addEventListener('click', function (e) {
            e.preventDefault();
            const targetId = this.getAttribute('href');
            const targetElement = document.querySelector(targetId);
            
            if (targetElement) {
                const headerOffset = 80;
                const elementPosition = targetElement.getBoundingClientRect().top;
                const offsetPosition = elementPosition + window.pageYOffset - headerOffset;
                
                window.scrollTo({
                    top: offsetPosition,
                    behavior: 'smooth'
                });
                
                // Close mobile menu if open
                if (mobileMenu && !mobileMenu.classList.contains('hidden')) {
                    mobileMenu.classList.add('hidden');
                }
            }
        });
    });

    // Lazy loading for images (if any are added dynamically)
    const imageObserver = new IntersectionObserver((entries, observer) => {
        entries.forEach(entry => {
            if (entry.isIntersecting) {
                const img = entry.target;
                if (img.dataset.src) {
                    img.src = img.dataset.src;
                    img.removeAttribute('data-src');
                    img.addEventListener('load', () => {
                        img.style.opacity = '1';
                    });
                }
                observer.unobserve(img);
            }
        });
    });

    document.querySelectorAll('img[data-src]').forEach(img => {
        img.style.opacity = '0';
        img.style.transition = 'opacity 0.3s';
        imageObserver.observe(img);
    });

    // Active navigation highlighting
    const sections = document.querySelectorAll('section[id]');
    const navLinks = document.querySelectorAll('nav a[href^="#"]');

    window.addEventListener('scroll', () => {
        let current = '';
        sections.forEach(section => {
            const sectionTop = section.offsetTop;
            const sectionHeight = section.clientHeight;
            if (pageYOffset >= sectionTop - 200) {
                current = section.getAttribute('id');
            }
        });

        navLinks.forEach(link => {
            link.classList.remove('text-primary');
            link.classList.add('text-gray-600');
            if (link.getAttribute('href') === `#${current}`) {
                link.classList.remove('text-gray-600');
                link.classList.add('text-primary');
            }
        });
    });

    // Testimonial slider (if more testimonials are added)
    let currentTestimonial = 0;
    const testimonials = document.querySelectorAll('.testimonial-card');
    
    if (testimonials.length > 3) {
        setInterval(() => {
            testimonials.forEach((t, index) => {
                if (index === currentTestimonial) {
                    t.style.transform = 'scale(1.05)';
                    t.style.opacity = '1';
                } else {
                    t.style.transform = 'scale(1)';
                    t.style.opacity = '0.7';
                }
            });
            currentTestimonial = (currentTestimonial + 1) % testimonials.length;
        }, 5000);
    }

    console.log('Mobile Travel Agent Profile loaded successfully');
});

// Form submission handler
function handleFormSubmit(e) {
    e.preventDefault();
    
    const form = e.target;
    const submitBtn = form.querySelector('button[type="submit"]');
    const originalText = submitBtn.innerHTML;
    
    // Simulate form submission
    submitBtn.disabled = true;
    submitBtn.innerHTML = '<span class="flex items-center justify-center"><svg class="animate-spin -ml-1 mr-3 h-5 w-5 text-white" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24"><circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle><path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path></svg>Sending...</span>';
    
    setTimeout(() => {
        // Success state
        submitBtn.classList.remove('bg-primary', 'hover:bg-teal-700');
        submitBtn.classList.add('bg-green-600');
        submitBtn.innerHTML = '<span class="flex items-center justify-center"><i data-lucide="check-circle" class="w-5 h-5 mr-2"></i>Message Sent!</span>';
        
        if (typeof lucide !== 'undefined') {
            lucide.createIcons();
        }
        
        // Reset form after delay
        setTimeout(() => {
            form.reset();
            submitBtn.disabled = false;
            submitBtn.classList.remove('bg-green-600');
            submitBtn.classList.add('bg-primary', 'hover:bg-teal-700');
            submitBtn.innerHTML = originalText;
            
            if (typeof lucide !== 'undefined') {
                lucide.createIcons();
            }
        }, 3000);
    }, 1500);
}

// Utility function for debouncing
function debounce(func, wait) {
    let timeout;
    return function executedFunction(...args) {
        const later = () => {
            clearTimeout(timeout);
            func(...args);
        };
        clearTimeout(timeout);
        timeout = setTimeout(later, wait);
    };
}

// Handle window resize with debounce
const handleResize = debounce(() => {
    // Recalculate any necessary layouts
    console.log('Window resized, layouts adjusted');
}, 250);

window.addEventListener('resize', handleResize);