// main.js
import { teamMembers, teamTagData } from './data/team.js';
import { initializeSearchUI } from './utils/search.js';
import { overallBackgroundImage } from './data/areas.js';
import { scrollToSection } from './utils/dom.js';
import { updatePageBackgroundPosition } from './utils/router.js'; // Import the new function

let allArtifactsData; // Declare a variable to hold the fetched artifacts

// Team member component
export function createTeamMember(name, role, hfUsername, tags) {

    const colors = ['blue', 'green', 'purple', 'orange', 'indigo', 'pink'];
    const colorIndex = name.length % colors.length;
    const color = colors[colorIndex];
    
    const initials = name.split(' ').map(n => n[0]).join('');
    
    const tagElements = tags.map(tag => {
        const tagInfo = teamTagData[tag];
        return `<span class="inline-block px-2 py-0.5 text-xs bg-gray-100 text-gray-700 rounded-full hover:bg-blue-100 hover:text-blue-800 cursor-pointer transition-colors whitespace-nowrap" onclick="window.scrollToSection('${tagInfo.id}')">${tagInfo.name}</span>`;
    }).join('');

    return `
        <div class="flex items-start space-x-3 p-3 rounded-lg hover:bg-gray-50 transition-colors">
            <div class="flex-shrink-0">
                <div class="w-14 h-14 rounded-full overflow-hidden bg-gradient-to-br from-${color}-400 to-${color}-600 flex items-center justify-center relative">
                    <img 
                        src="images/${hfUsername}.jpeg" 
                        alt="${name}" 
                        class="w-full h-full object-cover"
                        onerror="this.style.display='none'; this.nextElementSibling.style.display='flex';"
                    />
                    <span class="text-white font-semibold text-base hidden w-full h-full items-center justify-center absolute">${initials}</span>
                </div>
            </div>
            <div class="flex-1 min-w-0">
                <h4 class="font-semibold text-gray-900 text-base">
                    <a href="https://huggingface.co/${hfUsername}" class="hover:text-blue-600 transition-colors" target="_blank">
                        ${name}
                    </a>
                </h4>
                <p class="text-sm text-gray-600 mb-1.5">${role}</p>
                <div class="flex gap-1.5 overflow-x-auto scrollbar-hide">
                    ${tagElements}
                </div>
            </div>
        </div>
    `;
}

// Make router's scrollToSection globally available for onclick handlers
window.scrollToSection = scrollToSection;

// Scroll to top functionality
function scrollToTop() {
    window.scrollTo({
        top: 0,
        behavior: 'smooth'
    });
}

// Make scrollToTop globally available
window.scrollToTop = scrollToTop;

// Initialize team members
function initializeTeamMembers() {
    const teamContainer = document.getElementById('team-grid');
    if (!teamContainer) return;

    teamContainer.innerHTML = teamMembers.map(member => 
        createTeamMember(member.name, member.role, member.username, member.tags)
    ).join('');
}

// Note: Navigation handling moved to router.js for unified control

// Initialize scroll to top button functionality
function initializeScrollToTop() {
    const scrollToTopBtn = document.getElementById('scroll-to-top');
    if (!scrollToTopBtn) return;

    // Add click event listener
    scrollToTopBtn.addEventListener('click', scrollToTop);

    // Show/hide button based on scroll position
    function toggleScrollToTopButton() {
        const scrollPosition = window.pageYOffset || document.documentElement.scrollTop;
        const showThreshold = 300; // Show button after scrolling 300px

        if (scrollPosition > showThreshold) {
            scrollToTopBtn.classList.remove('opacity-0', 'invisible');
            scrollToTopBtn.classList.add('opacity-100', 'visible');
        } else {
            scrollToTopBtn.classList.remove('opacity-100', 'visible');
            scrollToTopBtn.classList.add('opacity-0', 'invisible');
        }
    }

    // Listen for scroll events
    window.addEventListener('scroll', toggleScrollToTopButton);
    
    // Initial check
    toggleScrollToTopButton();
}


// Main initialization
document.addEventListener('DOMContentLoaded', async function() { // Mark as async
    const backgroundImg = document.querySelector('#overall-background img');
    if (backgroundImg) {
        backgroundImg.src = `images/${overallBackgroundImage.image}`;
        backgroundImg.alt = overallBackgroundImage.altText;
    }
    
    // Fetch artifacts once
    try {
        const response = await fetch('/data/artifacts.json');
        if (!response.ok) {
            throw new Error(`HTTP error! status: ${response.status}`);
        }
        allArtifactsData = await response.json();
        console.log('Artifacts loaded once in main.js:', allArtifactsData.length, 'items');
    } catch (error) {
        console.error('Failed to load artifacts in main.js:', error);
        allArtifactsData = [];
    }

    // Make allArtifactsData globally available for other modules
    window.allArtifacts = allArtifactsData;
    
    // Initialize scroll to top functionality
    initializeScrollToTop();

    // Initialize search UI, passing the loaded artifacts
    initializeSearchUI(allArtifactsData);
    
    // The router will handle page-specific component initialization
    // No need to call initializeTeamMembers, initializeHomeAreaCards, etc. here
    // as they will be called by the router when loading the home page
    
    // Sidebar toggle functionality
    const searchToggle = document.getElementById('search-toggle');
    const searchSidebar = document.getElementById('search-sidebar');
    const searchClose = document.getElementById('search-close');
    const mainContent = document.getElementById('main-content');
    const overlay = document.getElementById('sidebar-overlay');
    // Left sidebar toggle functionality
    const sidebarToggle = document.getElementById('sidebar-toggle');
    const leftSidebar = document.getElementById('left-sidebar');
    const mainContentEl = document.getElementById('main-content');
    const leftSidebarBg = document.getElementById('left-sidebar-background'); // Get the background element

    function toggleLeftSidebar() {
        const isOpen = !leftSidebar.classList.contains('-translate-x-full');
        
        if (isOpen) {
            // Close sidebar
            leftSidebar.classList.add('-translate-x-full');
            mainContentEl.style.marginLeft = '0';
            leftSidebarBg.classList.add('hidden'); // Hide the left sidebar background
            updatePageBackgroundPosition(); // Update page background position immediately on close
        } else {
            // Open sidebar - initially hide its background
            leftSidebarBg.classList.add('hidden'); // Ensure it's hidden before animation starts

            leftSidebar.classList.remove('-translate-x-full');
            mainContentEl.style.marginLeft = '256px';
            
            // Wait for transition to end before updating background position AND showing sidebar background
            const handleTransitionEnd = () => {
                leftSidebarBg.classList.remove('hidden'); // Now show the left sidebar background
                updatePageBackgroundPosition();
                leftSidebar.removeEventListener('transitionend', handleTransitionEnd);
            };
            leftSidebar.addEventListener('transitionend', handleTransitionEnd);
        }
    }

    if (sidebarToggle) sidebarToggle.addEventListener('click', toggleLeftSidebar)

    function toggleSearch() {
        const isOpen = !searchSidebar.classList.contains('translate-x-full');
        const leftSidebarOpen = !leftSidebar.classList.contains('-translate-x-full');
        const rightSidebarBg = document.getElementById('right-sidebar-background');
        
        if (isOpen) {
            searchSidebar.classList.add('translate-x-full');
            rightSidebarBg.classList.add('hidden');
            if (leftSidebarOpen) {
                mainContent.style.marginLeft = '256px';
                mainContent.classList.remove('mr-80');
            } else {
                mainContent.style.marginLeft = '0';
                mainContent.classList.remove('mr-80');
            }
            overlay.classList.add('hidden');
        } else {
            searchSidebar.classList.remove('translate-x-full');
            rightSidebarBg.classList.remove('hidden');
            if (leftSidebarOpen) {
                mainContent.style.marginLeft = '256px';
                mainContent.classList.add('mr-80');
            } else {
                mainContent.style.marginLeft = '0';
                mainContent.classList.add('mr-80');
            }
            overlay.classList.remove('hidden');
        }
    }

    if (searchToggle) searchToggle.addEventListener('click', toggleSearch);
    if (searchClose) searchClose.addEventListener('click', toggleSearch);
    if (overlay) overlay.addEventListener('click', toggleSearch);

    // Scroll spy for left navigation
    const sections = document.querySelectorAll('section[id], div[id]');
    const navLinks = document.querySelectorAll('.page-nav-link');

    function updateActiveNavigation() {
        let current = '';
        const scrollPos = window.scrollY + 150;
        
        sections.forEach(section => {
            const sectionTop = section.offsetTop;
            const sectionHeight = section.offsetHeight;
            
            if (scrollPos >= sectionTop && scrollPos < sectionTop + sectionHeight) {
                current = section.getAttribute('id');
            }
        });

        navLinks.forEach(link => {
            link.classList.remove('text-blue-600', 'bg-blue-50');
            link.classList.add('text-gray-700');
            
            if (link.getAttribute('href') === `#${current}`) {
                link.classList.remove('text-gray-700');
                link.classList.add('text-blue-600', 'bg-blue-50');
            }
        });
    }

    window.addEventListener('scroll', updateActiveNavigation);
    updateActiveNavigation(); // Initial call
});