{% extends "layout.html" %}

{% block content %}
<div class="d-flex align-items-center justify-content-between mb-3">
  <h4 class="mb-0">Image Gallery
    <span class="text-muted fs-6 fw-normal ms-2">{{ total }} image{{ 's' if total != 1 else '' }}</span>
  </h4>
</div>

<!-- Filters -->
<form method="get" action="{{ url_for('gallery') }}" class="mb-3" id="filter-form">
  <div class="row g-2 align-items-end">

    <!-- Category -->
    <div class="col-auto">
      <label class="form-label form-label-sm mb-1">Category</label>
      <select name="category" class="form-select form-select-sm" onchange="this.form.submit()">
        <option value="all" {% if category == 'all' %}selected{% endif %}>All</option>
        {% for cat in categories %}
        <option value="{{ cat }}" {% if category == cat %}selected{% endif %}>{{ cat | capitalize }}</option>
        {% endfor %}
      </select>
    </div>

    <!-- Item (only when a category is selected) -->
    {% if slug_options %}
    <div class="col-auto">
      <label class="form-label form-label-sm mb-1">Item</label>
      <select name="slug" class="form-select form-select-sm" onchange="this.form.submit()">
        <option value="">All items</option>
        {% for s, n in slug_options %}
        <option value="{{ s }}" {% if slug == s %}selected{% endif %}>{{ n }}</option>
        {% endfor %}
      </select>
    </div>
    {% else %}
    <input type="hidden" name="slug" value="{{ slug }}">
    {% endif %}

    <!-- Sort -->
    <div class="col-auto">
      <label class="form-label form-label-sm mb-1">Sort</label>
      <select name="sort" class="form-select form-select-sm" onchange="this.form.submit()">
        <option value="newest" {% if sort == 'newest' %}selected{% endif %}>Newest first</option>
        <option value="oldest" {% if sort == 'oldest' %}selected{% endif %}>Oldest first</option>
        <option value="random" {% if sort == 'random' %}selected{% endif %}>🎲 Random</option>
      </select>
    </div>

    <!-- Per page -->
    <div class="col-auto">
      <label class="form-label form-label-sm mb-1">Per page</label>
      <select name="per_page" class="form-select form-select-sm" onchange="this.form.submit()">
        {% for n in [24, 48, 96] %}
        <option value="{{ n }}" {% if per_page == n %}selected{% endif %}>{{ n }}</option>
        {% endfor %}
      </select>
    </div>

    <!-- Active filter chips -->
    <div class="col">
      {% if category != 'all' %}
      <span class="badge bg-primary me-1">
        {{ category | capitalize }}
        <a href="{{ url_for('gallery', sort=sort, per_page=per_page) }}" class="text-white ms-1 text-decoration-none">×</a>
      </span>
      {% endif %}
      {% if slug %}
      <span class="badge bg-secondary me-1">
        {{ slug }}
        <a href="{{ url_for('gallery', category=category, sort=sort, per_page=per_page) }}" class="text-white ms-1 text-decoration-none">×</a>
      </span>
      {% endif %}
    </div>

    <input type="hidden" name="page" value="1">
  </div>
</form>

<!-- Quick Resource Filters -->
<div class="mb-3">
  <div class="d-flex flex-wrap gap-2 align-items-center">
    <span class="text-muted small me-2">Quick filters:</span>
    <a href="{{ url_for('gallery', sort=sort, per_page=per_page) }}" 
       class="badge {% if category == 'all' %}bg-secondary{% else %}bg-light text-dark{% endif %} text-decoration-none px-3 py-2">
      All
    </a>
    <a href="{{ url_for('gallery', category='characters', sort=sort, per_page=per_page) }}" 
       class="badge {% if category == 'characters' %}bg-primary{% else %}bg-light text-dark{% endif %} text-decoration-none px-3 py-2">
      Characters
    </a>
    <a href="{{ url_for('gallery', category='looks', sort=sort, per_page=per_page) }}" 
       class="badge {% if category == 'looks' %}bg-primary{% else %}bg-light text-dark{% endif %} text-decoration-none px-3 py-2">
      Looks
    </a>
    <a href="{{ url_for('gallery', category='outfits', sort=sort, per_page=per_page) }}" 
       class="badge {% if category == 'outfits' %}bg-success{% else %}bg-light text-dark{% endif %} text-decoration-none px-3 py-2">
      Outfits
    </a>
    <a href="{{ url_for('gallery', category='actions', sort=sort, per_page=per_page) }}" 
       class="badge {% if category == 'actions' %}bg-danger{% else %}bg-light text-dark{% endif %} text-decoration-none px-3 py-2">
      Actions
    </a>
    <a href="{{ url_for('gallery', category='scenes', sort=sort, per_page=per_page) }}" 
       class="badge {% if category == 'scenes' %}bg-info{% else %}bg-light text-dark{% endif %} text-decoration-none px-3 py-2">
      Scenes
    </a>
    <a href="{{ url_for('gallery', category='styles', sort=sort, per_page=per_page) }}" 
       class="badge {% if category == 'styles' %}bg-warning{% else %}bg-light text-dark{% endif %} text-decoration-none px-3 py-2">
      Styles
    </a>
    <a href="{{ url_for('gallery', category='detailers', sort=sort, per_page=per_page) }}" 
       class="badge {% if category == 'detailers' %}bg-secondary{% else %}bg-light text-dark{% endif %} text-decoration-none px-3 py-2">
      Detailers
    </a>
    <a href="{{ url_for('gallery', category='checkpoints', sort=sort, per_page=per_page) }}" 
       class="badge {% if category == 'checkpoints' %}bg-dark{% else %}bg-light text-dark{% endif %} text-decoration-none px-3 py-2">
      Checkpoints
    </a>
  </div>
</div>

<!-- Gallery View Mode Controls -->
<div class="gallery-controls" id="gallery-controls">
  <div class="gallery-view-modes">
    <button class="gallery-view-btn active" data-mode="grid" title="Info view">
      <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
        <rect x="3" y="3" width="7" height="7"></rect>
        <rect x="14" y="3" width="7" height="7"></rect>
        <rect x="14" y="14" width="7" height="7"></rect>
        <rect x="3" y="14" width="7" height="7"></rect>
      </svg>
      Info
    </button>
    <button class="gallery-view-btn" data-mode="mosaic" title="Gallery view">
      <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
        <rect x="3" y="3" width="6" height="6"></rect>
        <rect x="11" y="3" width="6" height="6"></rect>
        <rect x="3" y="11" width="6" height="6"></rect>
        <rect x="11" y="11" width="6" height="6"></rect>
      </svg>
      Gallery
    </button>
  </div>

  <div class="gallery-selection-controls">
    <button class="gallery-view-btn" id="selection-mode-toggle" title="Multi-select mode">
      <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
        <rect x="3" y="3" width="18" height="18" rx="2"></rect>
        <path d="M9 11l3 3 6-6"></path>
      </svg>
      Select
    </button>
    <button class="btn btn-sm btn-danger d-none" id="delete-selected-btn">
      <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" class="me-1">
        <polyline points="3 6 5 6 21 6"></polyline>
        <path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"></path>
      </svg>
      Delete Selected (<span id="selected-count">0</span>)
    </button>
  </div>

  <div class="gallery-slideshow-dropdown">
    <button class="gallery-slideshow-btn" id="slideshow-menu-btn" aria-haspopup="true" aria-expanded="false">
      <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
        <polygon points="5 3 19 12 5 21 5 3"></polygon>
      </svg>
      Slideshow ▾
    </button>
    <div class="gallery-slideshow-menu" id="slideshow-menu">
      <div class="gallery-slideshow-menu-item" data-mode="cinema">
        <span>🎬</span>
        <div>
          <div class="fw-medium">Cinema</div>
          <small class="text-muted">Ambient glow & Ken Burns</small>
        </div>
      </div>
      <div class="gallery-slideshow-menu-item" data-mode="classic">
        <span>⏯</span>
        <div>
          <div class="fw-medium">Classic</div>
          <small class="text-muted">Clean transitions</small>
        </div>
      </div>
      <div class="gallery-slideshow-menu-item" data-mode="showcase">
        <span>🖼</span>
        <div>
          <div class="fw-medium">Showcase</div>
          <small class="text-muted">Digital frame style</small>
        </div>
      </div>
      <div class="gallery-slideshow-menu-item" data-mode="ambient">
        <span>🌌</span>
        <div>
          <div class="fw-medium">Ambient</div>
          <small class="text-muted">Screensaver with particles</small>
        </div>
      </div>
    </div>
  </div>

  <div class="ms-auto small text-muted d-none d-md-block">
    <kbd>G</kbd> Info · <kbd>A</kbd> Gallery · <kbd>S</kbd> Slideshow
  </div>
</div>

<!-- Showing X–Y of N -->
{% if total > 0 %}
<p class="text-muted small mb-2">
  Showing {{ (page - 1) * per_page + 1 }}–{% if page * per_page < total %}{{ page * per_page }}{% else %}{{ total }}{% endif %} of {{ total }}
</p>
{% endif %}

<!-- Grid -->
{% if images %}
<div class="gallery-grid mb-4">
  {% set cat_colors = {
    'characters':  'primary',
    'actions':     'danger',
    'outfits':     'success',
    'scenes':      'info',
    'styles':      'warning',
    'detailers':   'secondary',
    'checkpoints': 'dark',
  } %}
  {% for img in images %}
  <div class="gallery-card"
       data-category="{{ img.category }}"
       data-slug="{{ img.slug }}"
       data-name="{{ img.item_name }}"
       data-path="{{ img.path }}"
       data-src="{{ url_for('static', filename='uploads/' + img.path) }}">
    <input type="checkbox" class="gallery-card-checkbox d-none" data-path="{{ img.path }}" onclick="event.stopPropagation()">
    <img src="{{ url_for('static', filename='uploads/' + img.path) }}"
         alt="{{ img.item_name }}"
         loading="lazy">
    <span class="cat-badge badge bg-{{ cat_colors.get(img.category, 'secondary') }}">
      {{ img.category[:-1] if img.category.endswith('s') else img.category }}
    </span>
    
    <!-- Info View Additional Metadata -->
    <div class="info-meta">
      {% if img.meta %}
        {% if img.meta.checkpoint %}
          <span class="badge bg-dark mb-1 d-inline-block text-truncate w-100" style="font-size: 0.65rem;" title="{{ img.meta.checkpoint }}">{{ img.meta.checkpoint.split('/')[-1] }}</span>
        {% endif %}
        <div class="d-flex flex-wrap gap-1">
        {% for lora in img.meta.loras %}
          {% set lora_name = lora.name.split('/')[-1].replace('.safetensors', '') %}
          {% set subfolder = lora.name.split('/')[1] if lora.name.startswith('Illustrious/') else '' %}
          
          {% if subfolder == 'Characters' %}{% set color = 'primary' %}
          {% elif subfolder == 'Looks' %}{% set color = 'primary' %}
          {% elif subfolder == 'Clothing' %}{% set color = 'success' %}
          {% elif subfolder == 'Actions' %}{% set color = 'danger' %}
          {% elif subfolder == 'Scenes' %}{% set color = 'info' %}
          {% elif subfolder == 'Styles' %}{% set color = 'warning' %}
          {% elif subfolder == 'Detailers' %}{% set color = 'secondary' %}
          {% else %}{% set color = 'light text-dark' %}
          {% endif %}
          
          <span class="badge bg-{{ color }}" style="font-size: 0.6rem;" title="{{ lora.name }}">{{ lora_name }}</span>
        {% endfor %}
        </div>
      {% endif %}
    </div>

    <div class="overlay">
      <div class="text-white small fw-semibold text-truncate">{{ img.item_name }}</div>
      <div class="d-flex gap-1 mt-1">
        <button class="btn btn-sm btn-light py-0 px-2 flex-grow-1"
                onclick='event.stopPropagation(); showPrompt({{ img.path | tojson }}, {{ img.item_name | tojson }}, {{ img.category | tojson }}, {{ img.slug | tojson }})'>
          Prompt
        </button>
        {% if img.category == 'characters' %}
        <a href="{{ url_for('detail', slug=img.slug) }}"
           class="btn btn-sm btn-outline-light py-0 px-2"
           onclick="event.stopPropagation()">Open</a>
        {% elif img.category == 'checkpoints' %}
        <a href="{{ url_for('checkpoint_detail', slug=img.slug) }}"
           class="btn btn-sm btn-outline-light py-0 px-2"
           onclick="event.stopPropagation()">Open</a>
        {% else %}
        <a href="{{ url_for('generator') }}?{{ img.category[:-1] }}={{ img.slug }}"
           class="btn btn-sm btn-outline-light py-0 px-2"
           onclick="event.stopPropagation()">Generator</a>
        {% endif %}
        <button class="btn btn-sm btn-outline-danger py-0 px-2"
                title="Delete"
                onclick='event.stopPropagation(); openDeleteModal({{ img.path | tojson }}, {{ img.item_name | tojson }})'>
          🗑
        </button>
      </div>
    </div>
  </div>
  {% endfor %}
</div>

<!-- Pagination -->
{% if total_pages > 1 %}
<nav>
  <ul class="pagination pagination-sm flex-wrap justify-content-center">
    <li class="page-item {% if page == 1 %}disabled{% endif %}">
      <a class="page-link" href="{{ url_for('gallery', category=category, slug=slug, sort=sort, per_page=per_page, page=page-1) }}">‹</a>
    </li>

    {% set window = 3 %}
    {% set ns = namespace(last=0) %}
    {% for p in range(1, total_pages + 1) %}
      {% if p == 1 or p == total_pages or (p >= page - window and p <= page + window) %}
        {% if ns.last and p > ns.last + 1 %}
        <li class="page-item disabled"><span class="page-link">…</span></li>
        {% endif %}
        <li class="page-item {% if p == page %}active{% endif %}">
          <a class="page-link" href="{{ url_for('gallery', category=category, slug=slug, sort=sort, per_page=per_page, page=p) }}">{{ p }}</a>
        </li>
        {% set ns.last = p %}
      {% endif %}
    {% endfor %}

    <li class="page-item {% if page == total_pages %}disabled{% endif %}">
      <a class="page-link" href="{{ url_for('gallery', category=category, slug=slug, sort=sort, per_page=per_page, page=page+1) }}">›</a>
    </li>
  </ul>
</nav>
{% endif %}

{% else %}
<div class="text-center text-muted py-5">
  <div class="fs-1 mb-2">🖼️</div>
  <p>No images found{% if category != 'all' %} in <strong>{{ category }}</strong>{% endif %}{% if slug %} for <strong>{{ slug }}</strong>{% endif %}.</p>
</div>
{% endif %}


<!-- Prompt modal -->
<div class="modal fade" id="promptModal" tabindex="-1">
  <div class="modal-dialog modal-lg modal-dialog-scrollable">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title" id="promptModalTitle">Generation Info</h5>
        <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
      </div>
      <div class="modal-body">
        <div id="promptLoading" class="text-center py-4">
          <div class="spinner-border text-secondary"></div>
        </div>
        <div id="promptContent" class="d-none">

          <!-- Prompts -->
          <div class="mb-3">
            <div class="d-flex justify-content-between align-items-center mb-1">
              <label class="form-label fw-semibold mb-0">Positive Prompt</label>
              <button class="btn btn-sm btn-outline-secondary py-0 px-2" onclick="copyField('promptPositive', this)">Copy</button>
            </div>
            <textarea id="promptPositive" class="form-control form-control-sm font-monospace" rows="5" readonly></textarea>
          </div>

          <div class="mb-3" id="negativeRow">
            <div class="d-flex justify-content-between align-items-center mb-1">
              <label class="form-label fw-semibold mb-0">Negative Prompt</label>
              <button class="btn btn-sm btn-outline-secondary py-0 px-2" onclick="copyField('promptNegative', this)">Copy</button>
            </div>
            <textarea id="promptNegative" class="form-control form-control-sm font-monospace" rows="2" readonly></textarea>
          </div>

          <!-- LoRAs -->
          <div class="mb-3" id="lorasRow">
            <label class="form-label fw-semibold mb-1">LoRAs</label>
            <div id="lorasContainer"></div>
          </div>

          <!-- Generation params -->
          <div class="mb-2" id="paramsRow">
            <label class="form-label fw-semibold mb-1">Generation Parameters</label>
            <div class="meta-grid" id="metaGrid"></div>
          </div>

          <div id="noMetaMsg" class="d-none">
            <p class="text-muted small fst-italic mb-0">No generation metadata found in this image.</p>
          </div>
        </div>
      </div>
      <div class="modal-footer">
        <a id="openGeneratorBtn" href="{{ url_for('generator') }}" class="btn btn-primary">Open in Generator</a>
        <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Close</button>
      </div>
    </div>
  </div>
</div>
<!-- Delete confirmation modal -->
<div class="modal fade" id="deleteModal" tabindex="-1">
  <div class="modal-dialog modal-dialog-centered">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title">Delete Image</h5>
        <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
      </div>
      <div class="modal-body">
        <p class="mb-0">Delete <strong id="deleteItemName"></strong>? The image file will be removed.</p>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancel</button>
        <button type="button" class="btn btn-danger" onclick="confirmDelete()">Delete</button>
      </div>
    </div>
  </div>
</div>
{% endblock %}

{% block scripts %}
<script>
// ---- Prompt modal ----
let promptModal;
document.addEventListener('DOMContentLoaded', () => {
  promptModal = new bootstrap.Modal(document.getElementById('promptModal'));
});

async function showPrompt(imgPath, name, category, slug) {
  document.getElementById('promptModalTitle').textContent = name;
  document.getElementById('promptContent').classList.add('d-none');
  document.getElementById('promptLoading').classList.remove('d-none');
  promptModal.show();

  try {
    const res  = await fetch(`/gallery/prompt-data?path=${encodeURIComponent(imgPath)}`);
    const data = await res.json();

    // Positive prompt
    document.getElementById('promptPositive').value = data.positive || '';

    // Negative prompt
    const neg = data.negative || '';
    document.getElementById('promptNegative').value = neg;
    document.getElementById('negativeRow').style.display = neg ? '' : 'none';

    // LoRAs
    const loras = (data.loras || []).filter(l => l.name);
    const lorasContainer = document.getElementById('lorasContainer');
    lorasContainer.innerHTML = '';
    if (loras.length) {
      loras.forEach(l => {
        const chip = document.createElement('span');
        chip.className = 'lora-chip';
        // Show only the filename part of the path
        const shortName = l.name.split('/').pop().replace('.safetensors', '');
        chip.innerHTML = `${shortName} <span class="lora-strength">${Number(l.strength).toFixed(2)}</span>`;
        chip.title = l.name;
        lorasContainer.appendChild(chip);
      });
    }
    document.getElementById('lorasRow').style.display = loras.length ? '' : 'none';

    // Generation params
    const params = [
      ['Checkpoint', data.checkpoint ? data.checkpoint.split('/').pop() : null],
      ['Seed',       data.seed],
      ['Steps',      data.steps],
      ['CFG',        data.cfg],
      ['Sampler',    data.sampler],
      ['Scheduler',  data.scheduler],
    ];
    const hasParams = params.some(([, v]) => v !== null && v !== undefined);
    const grid = document.getElementById('metaGrid');
    grid.innerHTML = '';
    params.forEach(([label, val]) => {
      if (val === null || val === undefined) return;
      const lEl = document.createElement('span'); lEl.className = 'meta-label'; lEl.textContent = label;
      const vEl = document.createElement('span'); vEl.className = 'meta-value';  vEl.textContent = val;
      grid.appendChild(lEl); grid.appendChild(vEl);
    });
    document.getElementById('paramsRow').style.display  = hasParams ? '' : 'none';
    document.getElementById('noMetaMsg').classList.toggle('d-none',
      !!(data.positive || loras.length || hasParams));

    // Generator link
    const genUrl = category === 'characters'
      ? `/character/${slug}`
      : category === 'checkpoints'
        ? `/checkpoint/${slug}`
        : `/generator?${category.replace(/s$/, '')}=${encodeURIComponent(slug)}`;
    const genBtn = document.getElementById('openGeneratorBtn');
    genBtn.href = genUrl;
    genBtn.textContent = (category === 'characters' || category === 'checkpoints') ? 'Open' : 'Open in Generator';
  } catch (e) {
    document.getElementById('promptPositive').value = 'Error loading metadata.';
  } finally {
    document.getElementById('promptLoading').classList.add('d-none');
    document.getElementById('promptContent').classList.remove('d-none');
  }
}

function copyField(id, btn) {
  const text = document.getElementById(id).value;
  navigator.clipboard.writeText(text).then(() => {
    const orig = btn.textContent;
    btn.textContent = 'Copied!';
    setTimeout(() => btn.textContent = orig, 1500);
  });
}

// ---- Delete modal ----
let _deletePath = '';
let deleteModal;
document.addEventListener('DOMContentLoaded', () => {
  deleteModal = new bootstrap.Modal(document.getElementById('deleteModal'));
});

function openDeleteModal(path, name) {
  _deletePath = path;
  document.getElementById('deleteItemName').textContent = name;
  deleteModal.show();
}

async function confirmDelete() {
  deleteModal.hide();
  try {
    const res = await fetch('/gallery/delete', {
      method: 'POST',
      headers: {'Content-Type': 'application/json'},
      body: JSON.stringify({path: _deletePath}),
    });
    const data = await res.json();
    if (data.status === 'ok') {
      const card = document.querySelector(`.gallery-card[data-path="${CSS.escape(_deletePath)}"]`);
      if (card) card.remove();
      const countEl = document.querySelector('h4 .text-muted');
      if (countEl) {
        const m = countEl.textContent.match(/(\d+)/);
        if (m) {
          const n = parseInt(m[1]) - 1;
          countEl.textContent = ` ${n} image${n !== 1 ? 's' : ''}`;
        }
      }
    } else {
      alert('Delete failed: ' + (data.error || 'unknown error'));
    }
  } catch (e) {
    alert('Delete failed: ' + e);
  }
}

// ============================================================
// GAZE Gallery Enhancement - View Mode Controls
// ============================================================
document.addEventListener('DOMContentLoaded', () => {
  // Initialize GalleryCore if available
  if (window.GalleryCore) {
    GalleryCore.init('.gallery-grid');
    console.log('GalleryCore initialized');
  }

  // View mode buttons
  const viewButtons = document.querySelectorAll('.gallery-view-btn');
  viewButtons.forEach(btn => {
    btn.addEventListener('click', () => {
      const mode = btn.dataset.mode;

      // Update active state
      viewButtons.forEach(b => b.classList.remove('active'));
      btn.classList.add('active');

      // Apply layout
      if (window.GalleryCore) {
        GalleryCore.setLayout(mode);
      }

      // Save preference
      localStorage.setItem('gaze-gallery-view', mode);
    });
  });

  // Restore saved view mode
  const savedMode = localStorage.getItem('gaze-gallery-view');
  if (savedMode) {
    const btn = document.querySelector(`.gallery-view-btn[data-mode="${savedMode}"]`);
    if (btn) {
      viewButtons.forEach(b => b.classList.remove('active'));
      btn.classList.add('active');
    }
  }

  // Slideshow dropdown
  const slideshowBtn = document.getElementById('slideshow-menu-btn');
  const slideshowMenu = document.getElementById('slideshow-menu');

  if (slideshowBtn && slideshowMenu) {
    slideshowBtn.addEventListener('click', (e) => {
      e.stopPropagation();
      slideshowMenu.classList.toggle('open');
      slideshowBtn.setAttribute('aria-expanded', slideshowMenu.classList.contains('open'));
    });

    // Close on outside click
    document.addEventListener('click', (e) => {
      if (!slideshowMenu.contains(e.target) && e.target !== slideshowBtn) {
        slideshowMenu.classList.remove('open');
        slideshowBtn.setAttribute('aria-expanded', 'false');
      }
    });

    // Slideshow mode selection
    slideshowMenu.querySelectorAll('.gallery-slideshow-menu-item').forEach(item => {
      item.addEventListener('click', () => {
        const mode = item.dataset.mode;
        slideshowMenu.classList.remove('open');
        slideshowBtn.setAttribute('aria-expanded', 'false');

        // Start slideshow
        if (window.GalleryCore) {
          GalleryCore.startSlideshow(mode);
        }
      });
    });
  }

  // ============================================================
  // Multi-Selection Mode
  // ============================================================
  let selectionMode = false;
  const selectedPaths = new Set();

  const selectionToggleBtn = document.getElementById('selection-mode-toggle');
  const deleteSelectedBtn = document.getElementById('delete-selected-btn');
  const selectedCountEl = document.getElementById('selected-count');
  const allCheckboxes = document.querySelectorAll('.gallery-card-checkbox');
  const galleryGrid = document.querySelector('.gallery-grid');

  // Toggle selection mode
  selectionToggleBtn.addEventListener('click', () => {
    selectionMode = !selectionMode;
    
    if (selectionMode) {
      // Enter selection mode
      selectionToggleBtn.classList.add('active');
      galleryGrid.classList.add('selection-mode');
      allCheckboxes.forEach(cb => cb.classList.remove('d-none'));
      
      // Modify card click behavior
      document.querySelectorAll('.gallery-card').forEach(card => {
        card.style.cursor = 'pointer';
        card.onclick = function(e) {
          e.stopPropagation();
          e.preventDefault();
          // In selection mode, clicking ANYWHERE on the card toggles checkbox
          const checkbox = this.querySelector('.gallery-card-checkbox');
          checkbox.checked = !checkbox.checked;
          handleCheckboxChange(checkbox);
        };
      });
    } else {
      // Exit selection mode
      selectionToggleBtn.classList.remove('active');
      galleryGrid.classList.remove('selection-mode');
      allCheckboxes.forEach(cb => {
        cb.classList.add('d-none');
        cb.checked = false;
      });
      deleteSelectedBtn.classList.add('d-none');
      selectedPaths.clear();
      
      // Restore original click behavior
      document.querySelectorAll('.gallery-card').forEach(card => {
        card.style.cursor = '';
        card.onclick = null;
      });
    }
  });

  // Handle checkbox changes
  function handleCheckboxChange(checkbox) {
    const path = checkbox.dataset.path;
    
    if (checkbox.checked) {
      selectedPaths.add(path);
      checkbox.closest('.gallery-card').classList.add('selected');
    } else {
      selectedPaths.delete(path);
      checkbox.closest('.gallery-card').classList.remove('selected');
    }
    
    // Update UI
    selectedCountEl.textContent = selectedPaths.size;
    if (selectedPaths.size > 0) {
      deleteSelectedBtn.classList.remove('d-none');
    } else {
      deleteSelectedBtn.classList.add('d-none');
    }
  }

  // Attach checkbox listeners
  allCheckboxes.forEach(cb => {
    cb.addEventListener('change', () => handleCheckboxChange(cb));
  });

  // Delete selected images
  deleteSelectedBtn.addEventListener('click', async () => {
    if (selectedPaths.size === 0) return;
    
    const count = selectedPaths.size;
    if (!confirm(`Delete ${count} selected image${count !== 1 ? 's' : ''}? This cannot be undone.`)) {
      return;
    }
    
    // Show loading state
    deleteSelectedBtn.disabled = true;
    deleteSelectedBtn.innerHTML = `<span class="spinner-border spinner-border-sm me-1"></span> Deleting...`;
    
    // Delete all selected images
    const pathsToDelete = Array.from(selectedPaths);
    let successCount = 0;
    let failCount = 0;
    
    for (const path of pathsToDelete) {
      try {
        const res = await fetch('/gallery/delete', {
          method: 'POST',
          headers: {'Content-Type': 'application/json'},
          body: JSON.stringify({path}),
        });
        const data = await res.json();
        
        if (data.status === 'ok') {
          // Remove card from DOM
          const card = document.querySelector(`.gallery-card[data-path="${CSS.escape(path)}"]`);
          if (card) card.remove();
          selectedPaths.delete(path);
          successCount++;
        } else {
          failCount++;
        }
      } catch (e) {
        console.error(`Failed to delete ${path}:`, e);
        failCount++;
      }
    }
    
    // Update count in header
    const countEl = document.querySelector('h4 .text-muted');
    if (countEl) {
      const m = countEl.textContent.match(/(\d+)/);
      if (m) {
        const n = parseInt(m[1]) - successCount;
        countEl.textContent = ` ${n} image${n !== 1 ? 's' : ''}`;
      }
    }
    
    // Reset button state
    deleteSelectedBtn.disabled = false;
    deleteSelectedBtn.innerHTML = `
      <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" class="me-1">
        <polyline points="3 6 5 6 21 6"></polyline>
        <path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"></path>
      </svg>
      Delete Selected (<span id="selected-count">0</span>)
    `;
    
    // Update selected count reference
    selectedCountEl = document.getElementById('selected-count');
    selectedCountEl.textContent = selectedPaths.size;
    
    if (selectedPaths.size === 0) {
      deleteSelectedBtn.classList.add('d-none');
    }
    
    // Show result message
    if (successCount > 0) {
      window.location.reload();
    } else if (failCount > 0) {
      alert(`Failed to delete ${failCount} image${failCount !== 1 ? 's' : ''}`);
    }
  });
});
</script>

<!-- Load Gallery Enhancement Script -->
<script src="{{ url_for('static', filename='js/gallery/gallery-core.js') }}"></script>
{% endblock %}