{% extends 'layout.html.twig' %}

{% block stylesheets %}
    {{ parent() }}
    <link rel="stylesheet" href="{{ asset('styles/media-discovery.css') }}">
{% endblock %}

{% block body %}
    <twig:Atoms:PageHeading heading="Multimedia" tagline="Discovery through serendipity"/>

    <div class="w-container">
        {% if error is defined %}
            <div class="error-message">
                <p>{{ error }}</p>
            </div>
        {% endif %}

        {% if mediaEvents|length > 0 %}
            <div class="masonry-grid">
                {% for event in mediaEvents %}
                    <div class="masonry-item">
                        {# Extract title #}
                        {% set title = null %}
                        {% for tag in event.tags %}
                            {% if tag[0] == 'title' %}
                                {% set title = tag[1] %}
                            {% endif %}
                        {% endfor %}

                        {# Extract first image from imeta tags #}
                        {% set firstImageUrl = null %}
                        {% set firstVideoUrl = null %}
                        {% set imageAlt = null %}
                        {% set isVideo = false %}
                        {% set imageWidth = null %}
                        {% set imageHeight = null %}
                        {% for tag in event.tags %}
                            {% if tag[0] == 'imeta' %}
                                {% set videoUrl = null %}
                                {% set imageUrl = null %}
                                {% set previewImage = null %}
                                {% set width = null %}
                                {% set height = null %}
                                {% for i in 1..(tag|length - 1) %}
                                    {% set param = tag[i] %}
                                    {% if param starts with 'url ' %}
                                        {% set potentialUrl = param[4:] %}
                                        {# Check if it's a video URL #}
                                        {% if potentialUrl matches '/\\.(mp4|webm|ogg|mov)$/i' or potentialUrl matches '/video/i' %}
                                            {% set videoUrl = potentialUrl %}
                                            {% set isVideo = true %}
                                        {% else %}
                                            {% set imageUrl = potentialUrl %}
                                        {% endif %}
                                    {% elseif param starts with 'image ' %}
                                        {# Preview/poster image for video or regular image #}
                                        {% set previewImage = param[6:] %}
                                    {% elseif param starts with 'alt ' %}
                                        {% set imageAlt = param[4:] %}
                                    {% elseif param starts with 'dim ' %}
                                        {# Extract dimensions like "dim 1920x1080" #}
                                        {% set dimensions = param[4:]|split('x') %}
                                        {% if dimensions|length == 2 %}
                                            {% set width = dimensions[0] %}
                                            {% set height = dimensions[1] %}
                                        {% endif %}
                                    {% endif %}
                                {% endfor %}
                                {# Set the first video and image found #}
                                {% if videoUrl and firstVideoUrl is null %}
                                    {% set firstVideoUrl = videoUrl %}
                                    {# Use preview image if available, otherwise try to use the main image URL #}
                                    {% if previewImage and firstImageUrl is null %}
                                        {% set firstImageUrl = previewImage %}
                                    {% elseif imageUrl and firstImageUrl is null %}
                                        {% set firstImageUrl = imageUrl %}
                                    {% endif %}
                                    {% if width and height and imageWidth is null %}
                                        {% set imageWidth = width %}
                                        {% set imageHeight = height %}
                                    {% endif %}
                                {% endif %}
                                {# For non-video items, use the image URL or preview #}
                                {% if not videoUrl and firstImageUrl is null %}
                                    {% if imageUrl %}
                                        {% set firstImageUrl = imageUrl %}
                                        {% if width and height and imageWidth is null %}
                                            {% set imageWidth = width %}
                                            {% set imageHeight = height %}
                                        {% endif %}
                                    {% elseif previewImage %}
                                        {% set firstImageUrl = previewImage %}
                                    {% endif %}
                                {% endif %}
                            {% endif %}
                        {% endfor %}

                        {# Calculate aspect ratio percentage for placeholder if dimensions available #}
                        {% set aspectRatio = null %}
                        {% if imageWidth and imageHeight %}
                            {% set aspectRatio = (imageHeight / imageWidth * 100)|round(2) %}
                        {% endif %}

                        {# Generate nevent for linking #}
                        {% set eventId = event.id %}
                        {% set noteId = event.noteId %}

                        <a href="/e/{{ noteId }}" class="masonry-link">
                            {% if firstImageUrl %}
                                <div class="masonry-image-container {% if aspectRatio %}has-dimensions{% endif %}" {% if aspectRatio %}style="padding-bottom: {{ aspectRatio }}%;"{% endif %} data-controller="media--image-loader">
                                    <img data-src="{{ firstImageUrl }}"
                                         alt="{{ imageAlt|default(title|default(isVideo ? 'Video' : 'Picture')) }}"
                                         class="masonry-image"
                                         data-media--image-loader-target="image"
                                         onerror="this.closest('.masonry-item').style.display='none'" />
                                    {% if isVideo %}
                                        <div class="video-overlay">
                                            <svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 24 24" fill="white" opacity="0.9">
                                                <path d="M8 5v14l11-7z"/>
                                            </svg>
                                        </div>
                                    {% endif %}
                                    {% if event.content %}
                                        <div class="masonry-hover-caption">
                                            {% if event.content %}
                                                <p>{{ event.content|length > 100 ? event.content[:100] ~ '...' : event.content }}</p>
                                            {% endif %}
                                        </div>
                                    {% endif %}
                                </div>
                            {% elseif isVideo %}
                                {# Video without preview image - show placeholder with video icon #}
                                <div class="masonry-image-container video-no-preview">
                                    <div class="video-placeholder">
                                        <svg xmlns="http://www.w3.org/2000/svg" width="64" height="64" viewBox="0 0 24 24" fill="currentColor" opacity="0.4">
                                            <path d="M8 5v14l11-7z"/>
                                        </svg>
                                    </div>
                                    {% if event.content %}
                                        <div class="masonry-hover-caption">
                                            {% if event.content %}
                                                <p>{{ event.content|length > 100 ? event.content[:100] ~ '...' : event.content }}</p>
                                            {% endif %}
                                        </div>
                                    {% endif %}
                                </div>
                            {% endif %}
                        </a>
                    </div>
                {% endfor %}
            </div>

            <div class="discover-footer">
                <p class="media-count">End of the line. Refresh to load a new batch.</p>
            </div>
        {% else %}
            <div class="no-media">
                <p>No media found. Reload to try again.</p>
            </div>
        {% endif %}
    </div>
{% endblock %}

{% block aside %}
{#    <div class="topic-filter">#}
{#        <h3 class="aside-heading">Browse by Topic</h3>#}
{#        <div class="topic-list">#}
{#            {% for topic in topics %}#}
{#                <a href="{{ path('media-discovery', {'topic': topic}) }}"#}
{#                   class="topic-item {{ selectedTopic == topic ? 'active' : '' }}">#}
{#                    {{ topic|capitalize }}#}
{#                </a>#}
{#            {% endfor %}#}
{#        </div>#}
{#    </div>#}
{% endblock %}