{% extends "base.html" %}

{% block extra_head %}
<style>
/* Image Gallery Styles */
.image-gallery {
    margin: 2rem 0;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.gallery-item {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.gallery-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.gallery-thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.2s ease;
}

.gallery-item:hover .gallery-thumbnail {
    transform: scale(1.05);
}

/* Lightbox Styles */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox-image {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 4px;
}

.lightbox-title {
    color: white;
    margin-top: 1rem;
    text-align: center;
    font-size: 1.1rem;
    font-family: et-book, Palatino, "Palatino Linotype", "Palatino LT STD", "Book Antiqua", Georgia, serif;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    color: white;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    z-index: 1001;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.5);
    transition: background 0.2s ease;
}

.lightbox-close:hover {
    background: rgba(0, 0, 0, 0.8);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: white;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    z-index: 1001;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.5);
    transition: background 0.2s ease;
}

.lightbox-nav:hover {
    background: rgba(0, 0, 0, 0.8);
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

@media (max-width: 760px) {
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 0.5rem;
    }
    
    .lightbox-close {
        top: 10px;
        right: 10px;
        width: 35px;
        height: 35px;
        font-size: 1.5rem;
    }
    
    .lightbox-nav {
        width: 45px;
        height: 45px;
        font-size: 1.5rem;
    }
    
    .lightbox-prev {
        left: 10px;
    }
    
    .lightbox-next {
        right: 10px;
    }
}
</style>
{% endblock %}

{% block content %}
{% if current_path and current_path != '' %}
    <h1>{{ current_path.split('/')[-1] if '/' in current_path else current_path }}</h1>
{% endif %}

{% if index_content and content_position == 'top' %}
<section class="directory-intro">
    {{ index_content.content | safe }}
</section>
{% endif %}

{% if is_image_gallery and image_items %}
<section class="image-gallery">
    <h3>Gallery</h3>
    <div class="gallery-grid">
        {% for item in image_items %}
        <div class="gallery-item">
            <img src="{{ item.static_path }}" alt="{{ item.display_name }}" class="gallery-thumbnail" data-full="{{ item.static_path }}" data-title="{{ item.display_name }}">
        </div>
        {% endfor %}
    </div>
</section>

{% if items|length > image_items|length %}
<section class="directory-listing">
    <h3>Other Files</h3>
    <ul>
        {% for item in items %}
        {% if not item.is_image %}
        <li data-icon="{% if item.is_dir %}📁{% elif item.is_markdown %}📝{% else %}📄{% endif %}">
            <a href="{{ item.url_path }}">
                {{ item.display_name }}{% if item.is_dir %}/{% endif %}
            </a>
            {% if not item.is_dir %}
                <span class="item-date">{{ item.modified.strftime('%Y-%m-%d') }}</span>
            {% endif %}
        </li>
        {% endif %}
        {% endfor %}
    </ul>
</section>
{% endif %}

{% elif items %}
<section class="directory-listing">
    <h3>Contents</h3>
    <ul>
        {% for item in items %}
        <li data-icon="{% if item.is_dir %}📁{% elif item.is_markdown %}📝{% elif item.is_image %}🖼️{% else %}📄{% endif %}">
            <a href="{{ item.url_path }}">
                {{ item.display_name }}{% if item.is_dir %}/{% endif %}
            </a>
            {% if not item.is_dir %}
                <span class="item-date">{{ item.modified.strftime('%Y-%m-%d') }}</span>
            {% endif %}
        </li>
        {% endfor %}
    </ul>
</section>
{% else %}
<section class="empty-directory">
    <p><em>This directory is empty.</em></p>
</section>
{% endif %}

{% if index_content and content_position == 'bottom' %}
<section class="directory-description">
    <h3>About This Directory</h3>
    {{ index_content.content | safe }}
</section>
{% endif %}

<!-- Lightbox HTML -->
<div id="lightbox" class="lightbox">
    <div class="lightbox-close" onclick="closeLightbox()">&times;</div>
    <div class="lightbox-nav lightbox-prev" onclick="changeImage(-1)">&#8249;</div>
    <div class="lightbox-nav lightbox-next" onclick="changeImage(1)">&#8250;</div>
    <div class="lightbox-content">
        <img id="lightbox-image" class="lightbox-image" src="" alt="">
        <div id="lightbox-title" class="lightbox-title"></div>
    </div>
</div>

<script>
let currentImageIndex = 0;
let images = [];

document.addEventListener('DOMContentLoaded', function() {
    // Initialize gallery if images exist
    const galleryItems = document.querySelectorAll('.gallery-thumbnail');
    
    if (galleryItems.length > 0) {
        // Build images array
        images = Array.from(galleryItems).map(img => ({
            src: img.dataset.full,
            title: img.dataset.title,
            alt: img.alt
        }));
        
        // Add click handlers
        galleryItems.forEach((img, index) => {
            img.addEventListener('click', () => openLightbox(index));
        });
    }
    
    // Close lightbox on background click
    document.getElementById('lightbox').addEventListener('click', function(e) {
        if (e.target === this) {
            closeLightbox();
        }
    });
    
    // Keyboard navigation
    document.addEventListener('keydown', function(e) {
        const lightbox = document.getElementById('lightbox');
        if (lightbox.classList.contains('active')) {
            switch(e.key) {
                case 'Escape':
                    closeLightbox();
                    break;
                case 'ArrowLeft':
                    changeImage(-1);
                    break;
                case 'ArrowRight':
                    changeImage(1);
                    break;
            }
        }
    });
});

function openLightbox(index) {
    currentImageIndex = index;
    updateLightboxImage();
    document.getElementById('lightbox').classList.add('active');
    document.body.style.overflow = 'hidden'; // Prevent background scrolling
}

function closeLightbox() {
    document.getElementById('lightbox').classList.remove('active');
    document.body.style.overflow = ''; // Restore scrolling
}

function changeImage(direction) {
    currentImageIndex += direction;
    
    if (currentImageIndex >= images.length) {
        currentImageIndex = 0;
    } else if (currentImageIndex < 0) {
        currentImageIndex = images.length - 1;
    }
    
    updateLightboxImage();
}

function updateLightboxImage() {
    const image = images[currentImageIndex];
    const lightboxImage = document.getElementById('lightbox-image');
    const lightboxTitle = document.getElementById('lightbox-title');
    
    lightboxImage.src = image.src;
    lightboxImage.alt = image.alt;
    lightboxTitle.textContent = image.title;
    
    // Update navigation visibility
    const prevBtn = document.querySelector('.lightbox-prev');
    const nextBtn = document.querySelector('.lightbox-next');
    
    if (images.length <= 1) {
        prevBtn.style.display = 'none';
        nextBtn.style.display = 'none';
    } else {
        prevBtn.style.display = 'flex';
        nextBtn.style.display = 'flex';
    }
}
</script>
{% endblock %}