screentinker/frontend/js/views/playlists.js

import { api } from '../api.js';
import { showToast } from '../components/toast.js';
import { esc } from '../utils.js';
import { t, tn } from '../i18n.js';

function formatDate(ts) {
  if (!ts) return '--';
  return new Date(ts * 1000).toLocaleDateString(undefined, { month: 'short', day: 'numeric', year: 'numeric' });
}

function getTypeIcon(item) {
  if (item.widget_id) return '<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><rect x="2" y="2" width="8" height="8" rx="1"/><rect x="14" y="2" width="8" height="8" rx="1"/><rect x="2" y="14" width="8" height="8" rx="1"/><rect x="14" y="14" width="8" height="8" rx="1"/></svg>';
  if (item.mime_type && item.mime_type.startsWith('video/')) return '<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><polygon points="5 3 19 12 5 21 5 3"/></svg>';
  return '<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><rect x="3" y="3" width="18" height="18" rx="2" ry="2"/><circle cx="8.5" cy="8.5" r="1.5"/><polyline points="21 15 16 10 5 21"/></svg>';
}

let currentPlaylistId = null;

export function render(container) {
  const hash = window.location.hash;
  const match = hash.match(/#\/playlists\/(.+)/);
  if (match) {
    currentPlaylistId = match[1];
    renderDetail(container, match[1]);
  } else {
    currentPlaylistId = null;
    renderList(container);
  }
}

export function cleanup() {
  currentPlaylistId = null;
}

let showAutoGenerated = true;

async function renderList(container) {
  container.innerHTML = `
    <div class="page-header">
      <div>
        <h1>${t('playlist.title')}</h1>
        <div class="subtitle">${t('playlist.subtitle')}</div>
      </div>
      <div style="display:flex;gap:8px;align-items:center">
        <label style="display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text-secondary);cursor:pointer">
          <input type="checkbox" id="showAutoToggle" ${showAutoGenerated ? 'checked' : ''}>
          ${t('playlist.show_auto_generated')}
        </label>
        <button class="btn btn-primary" id="createPlaylistBtn">${t('playlist.new_playlist_btn')}</button>
      </div>
    </div>
    <div id="playlistGrid" style="display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:16px">
      <div style="color:var(--text-muted);padding:40px;text-align:center">${t('common.loading')}</div>
    </div>
  `;

  document.getElementById('createPlaylistBtn').addEventListener('click', showCreateModal);
  document.getElementById('showAutoToggle').addEventListener('change', (e) => {
    showAutoGenerated = e.target.checked;
    loadPlaylists();
  });
  loadPlaylists();
}

async function loadPlaylists() {
  const grid = document.getElementById('playlistGrid');
  if (!grid) return;

  try {
    const playlists = await api.getPlaylists();
    if (!playlists.length) {
      grid.innerHTML = `
        <div style="grid-column:1/-1;text-align:center;padding:60px 20px;color:var(--text-muted)">
          <svg width="48" height="48" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" style="margin:0 auto 16px;display:block;opacity:0.4">
            <line x1="8" y1="6" x2="21" y2="6"/><line x1="8" y1="12" x2="21" y2="12"/><line x1="8" y1="18" x2="21" y2="18"/>
            <line x1="3" y1="6" x2="3.01" y2="6"/><line x1="3" y1="12" x2="3.01" y2="12"/><line x1="3" y1="18" x2="3.01" y2="18"/>
          </svg>
          <h3 style="margin-bottom:8px;color:var(--text-primary)">${t('playlist.empty_title')}</h3>
          <p>${t('playlist.empty_desc')}</p>
        </div>
      `;
      return;
    }

    const filtered = showAutoGenerated ? playlists : playlists.filter(p => !p.is_auto_generated);
    if (!filtered.length) {
      grid.innerHTML = `
        <div style="grid-column:1/-1;text-align:center;padding:40px;color:var(--text-muted)">
          ${playlists.length ? t('playlist.all_auto_generated') : ''}
        </div>
      `;
      return;
    }

    grid.innerHTML = filtered.map(p => `
      <a href="#/playlists/${esc(p.id)}" class="playlist-card" style="background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;text-decoration:none;color:inherit;display:block;transition:border-color 0.15s;cursor:pointer">
        <div style="display:flex;justify-content:space-between;align-items:start;margin-bottom:12px">
          <div style="display:flex;align-items:center;gap:8px">
            <div style="font-size:16px;font-weight:600;color:var(--text-primary)">${esc(p.name)}</div>
            ${p.is_auto_generated ? `<span style="font-size:10px;padding:2px 6px;border-radius:4px;background:var(--bg-input);color:var(--text-muted)">${t('playlist.tag_auto')}</span>` : ''}
            ${p.status === 'draft' ? `<span style="font-size:10px;padding:2px 6px;border-radius:4px;background:#78350f;color:#fbbf24">${t('playlist.tag_draft')}</span>` : ''}
          </div>
          <div style="font-size:12px;color:var(--text-muted);white-space:nowrap;margin-left:12px">${tn('playlist.item_count', p.item_count)}</div>
        </div>
        ${p.description ? `<div style="font-size:13px;color:var(--text-secondary);margin-bottom:12px;line-height:1.4">${esc(p.description)}</div>` : ''}
        <div style="display:flex;justify-content:space-between;font-size:12px;color:var(--text-muted)">
          <span>${t('playlist.created_at', { date: formatDate(p.created_at) })}</span>
          ${p.display_count ? `<span>${tn('playlist.display_count', p.display_count)}</span>` : ''}
        </div>
      </a>
    `).join('');
  } catch (err) {
    grid.innerHTML = `<div style="grid-column:1/-1;color:var(--text-muted);padding:40px;text-align:center">${t('playlist.load_failed', { error: esc(err.message) })}</div>`;
  }
}

function showCreateModal() {
  const modal = document.createElement('div');
  modal.style.cssText = 'position:fixed;inset:0;background:rgba(0,0,0,0.6);display:flex;align-items:center;justify-content:center;z-index:1000';
  modal.innerHTML = `
    <div style="background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;width:400px;max-width:90vw">
      <h3 style="margin-bottom:16px;color:var(--text-primary)">${t('playlist.new_playlist')}</h3>
      <input type="text" id="newPlaylistName" class="input" placeholder="${t('playlist.name_placeholder')}" style="width:100%;margin-bottom:12px" autofocus>
      <textarea id="newPlaylistDesc" class="input" placeholder="${t('playlist.desc_placeholder')}" style="width:100%;height:60px;resize:vertical;margin-bottom:16px"></textarea>
      <div style="display:flex;gap:8px;justify-content:flex-end">
        <button class="btn btn-secondary" id="cancelCreateBtn">${t('common.cancel')}</button>
        <button class="btn btn-primary" id="confirmCreateBtn">${t('playlist.create_btn')}</button>
      </div>
    </div>
  `;
  document.body.appendChild(modal);

  const nameInput = document.getElementById('newPlaylistName');
  nameInput.focus();

  document.getElementById('cancelCreateBtn').addEventListener('click', () => modal.remove());
  modal.addEventListener('click', (e) => { if (e.target === modal) modal.remove(); });

  async function doCreate() {
    const name = nameInput.value.trim();
    if (!name) { nameInput.focus(); return; }
    const desc = document.getElementById('newPlaylistDesc').value.trim();
    try {
      const pl = await api.createPlaylist(name, desc);
      modal.remove();
      showToast(t('playlist.toast.created'));
      window.location.hash = `#/playlists/${pl.id}`;
    } catch (err) {
      showToast(err.message, 'error');
    }
  }

  document.getElementById('confirmCreateBtn').addEventListener('click', doCreate);
  nameInput.addEventListener('keydown', (e) => { if (e.key === 'Enter') doCreate(); });
}

async function renderDetail(container, playlistId) {
  container.innerHTML = `
    <div style="color:var(--text-muted);padding:40px;text-align:center">${t('common.loading')}</div>
  `;

  try {
    const playlist = await api.getPlaylist(playlistId);
    renderDetailContent(container, playlist);
  } catch (err) {
    container.innerHTML = `
      <div style="padding:40px;text-align:center;color:var(--text-muted)">
        <p>${t('playlist.load_failed', { error: esc(err.message) })}</p>
        <a href="#/playlists" class="btn btn-secondary" style="margin-top:16px">${t('playlist.back_to_playlists')}</a>
      </div>
    `;
  }
}

function renderDetailContent(container, playlist) {
  const isDraft = playlist.status === 'draft';
  const hasPublished = !!playlist.published_snapshot;

  container.innerHTML = `
    ${isDraft ? `
    <div id="draftBanner" style="background:#78350f;border:1px solid #92400e;border-radius:var(--radius-lg);padding:14px 20px;margin-bottom:16px;display:flex;align-items:center;justify-content:space-between;gap:16px">
      <div style="display:flex;align-items:center;gap:10px;color:#fbbf24">
        <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M10.29 3.86L1.82 18a2 2 0 0 0 1.71 3h16.94a2 2 0 0 0 1.71-3L13.71 3.86a2 2 0 0 0-3.42 0z"/><line x1="12" y1="9" x2="12" y2="13"/><line x1="12" y1="17" x2="12.01" y2="17"/></svg>
        <div>
          <div style="font-weight:600;font-size:14px">${t('playlist.draft.banner_title')}</div>
          <div style="font-size:12px;color:#fcd34d;opacity:0.85">${hasPublished ? t('playlist.draft.devices_showing_published') : t('playlist.draft.never_published')}</div>
        </div>
      </div>
      <div style="display:flex;gap:8px;flex-shrink:0">
        ${hasPublished ? `<button class="btn btn-secondary btn-sm" id="discardDraftBtn" style="color:#fbbf24;border-color:#92400e">${t('playlist.draft.discard_changes')}</button>` : ''}
        <button class="btn btn-sm" id="publishBtn" style="background:#f59e0b;color:#000;font-weight:600;border:none">${t('playlist.draft.publish')}</button>
      </div>
    </div>
    ` : ''}

    <div class="page-header">
      <div style="display:flex;align-items:center;gap:12px">
        <a href="#/playlists" style="color:var(--text-muted);text-decoration:none;font-size:20px" title="${t('playlist.back')}">&larr;</a>
        <div>
          <h1 id="playlistTitle" style="cursor:pointer" title="${t('playlist.click_to_rename')}">${esc(playlist.name)}</h1>
          <div class="subtitle" id="playlistDesc" style="cursor:pointer" title="${t('playlist.click_to_edit_desc')}">${playlist.description ? esc(playlist.description) : `<span style="opacity:0.5">${t('playlist.add_desc_placeholder')}</span>`}</div>
          ${playlist.display_count ? `<div style="font-size:12px;color:var(--text-muted);margin-top:4px">${tn('playlist.assigned_to', playlist.display_count)}</div>` : ''}
        </div>
      </div>
      <div style="display:flex;gap:8px">
        <button class="btn btn-primary" id="addItemBtn">${t('playlist.add_content')}</button>
        <button class="btn btn-secondary" id="deletePlaylistBtn" style="color:var(--danger)">${t('playlist.delete_playlist')}</button>
      </div>
    </div>

    <div id="playlistItems" style="display:flex;flex-direction:column;gap:8px">
    </div>
  `;

  renderItems(playlist.items || []);

  const publishBtn = document.getElementById('publishBtn');
  if (publishBtn) {
    publishBtn.addEventListener('click', async () => {
      try {
        publishBtn.disabled = true;
        publishBtn.textContent = t('playlist.draft.publishing');
        const updated = await api.publishPlaylist(playlist.id);
        showToast(t('playlist.toast.published'));
        renderDetailContent(container, updated);
      } catch (err) {
        publishBtn.disabled = false;
        publishBtn.textContent = t('playlist.draft.publish');
        showToast(err.message, 'error');
      }
    });
  }
  const discardBtn = document.getElementById('discardDraftBtn');
  if (discardBtn) {
    discardBtn.addEventListener('click', async () => {
      if (!confirm(t('playlist.confirm_discard_draft'))) return;
      try {
        const updated = await api.discardPlaylistDraft(playlist.id);
        showToast(t('playlist.toast.draft_discarded'));
        renderDetailContent(container, updated);
      } catch (err) {
        showToast(err.message, 'error');
      }
    });
  }

  document.getElementById('playlistTitle').addEventListener('click', () => inlineEdit(playlist, 'name'));
  document.getElementById('playlistDesc').addEventListener('click', () => inlineEdit(playlist, 'description'));

  document.getElementById('addItemBtn').addEventListener('click', () => showAddItemModal(playlist.id));

  document.getElementById('deletePlaylistBtn').addEventListener('click', async () => {
    if (!confirm(t('playlist.confirm_delete', { name: playlist.name }))) return;
    try {
      await api.deletePlaylist(playlist.id);
      showToast(t('playlist.toast.deleted'));
      window.location.hash = '#/playlists';
    } catch (err) {
      showToast(err.message, 'error');
    }
  });
}

async function refreshAfterMutation() {
  if (!currentPlaylistId) return;
  const mainContainer = document.getElementById('draftBanner')?.parentElement || document.querySelector('.page-header')?.parentElement;
  if (!mainContainer) return;
  try {
    const playlist = await api.getPlaylist(currentPlaylistId);
    renderDetailContent(mainContainer, playlist);
  } catch (e) { /* silent */ }
}

function renderItems(items) {
  const itemsEl = document.getElementById('playlistItems');
  if (!itemsEl) return;

  if (!items.length) {
    itemsEl.innerHTML = `
      <div style="text-align:center;padding:40px;color:var(--text-muted);border:2px dashed var(--border);border-radius:var(--radius-lg)">
        <p style="margin-bottom:8px">${t('playlist.items_empty')}</p>
        <p style="font-size:13px">${t('playlist.items_empty_hint')}</p>
      </div>
    `;
    return;
  }

  itemsEl.innerHTML = items.map((item, i) => `
    <div class="playlist-item" data-item-id="${item.id}" data-index="${i}" draggable="true" style="background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:12px 16px;display:flex;align-items:center;gap:12px;cursor:grab;transition:border-color 0.15s">
      <div style="color:var(--text-muted);font-size:12px;min-width:24px;text-align:center;user-select:none">${i + 1}</div>
      <div style="width:48px;height:36px;border-radius:4px;overflow:hidden;background:var(--bg-input);flex-shrink:0;display:flex;align-items:center;justify-content:center">
        ${item.thumbnail_path
          ? `<img src="/uploads/thumbnails/${esc(item.thumbnail_path.split('/').pop())}" style="width:100%;height:100%;object-fit:cover">`
          : `<div style="color:var(--text-muted);opacity:0.5">${getTypeIcon(item)}</div>`
        }
      </div>
      <div style="flex:1;min-width:0">
        <div style="font-size:14px;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis">${esc(item.filename || item.widget_name || t('common.unknown'))}</div>
        <div style="font-size:12px;color:var(--text-muted)">${item.widget_id ? t('playlist.item_widget') : esc(item.mime_type || t('playlist.unknown_type'))}</div>
      </div>
      <div style="display:flex;align-items:center;gap:8px;flex-shrink:0">
        <label style="font-size:12px;color:var(--text-muted)">${t('playlist.duration')}</label>
        <input type="number" class="input item-duration" data-item-id="${item.id}" value="${item.duration_sec}" min="1" style="width:60px;padding:4px 8px;font-size:13px;text-align:center">
        <span style="font-size:12px;color:var(--text-muted)">${t('playlist.sec')}</span>
      </div>
      <div style="display:flex;align-items:center;gap:4px;flex-shrink:0">
        <button class="btn-icon item-move" data-item-id="${item.id}" data-dir="up" title="${t('playlist.move_up')}" aria-label="${t('playlist.move_up')}" ${i === 0 ? 'disabled' : ''} style="color:var(--text-muted);background:none;border:none;cursor:pointer;padding:4px;border-radius:4px;${i === 0 ? 'opacity:0.3;cursor:not-allowed' : ''}">
          <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><polyline points="18 15 12 9 6 15"/></svg>
        </button>
        <button class="btn-icon item-move" data-item-id="${item.id}" data-dir="down" title="${t('playlist.move_down')}" aria-label="${t('playlist.move_down')}" ${i === items.length - 1 ? 'disabled' : ''} style="color:var(--text-muted);background:none;border:none;cursor:pointer;padding:4px;border-radius:4px;${i === items.length - 1 ? 'opacity:0.3;cursor:not-allowed' : ''}">
          <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><polyline points="6 9 12 15 18 9"/></svg>
        </button>
        <button class="btn-icon item-remove" data-item-id="${item.id}" title="${t('common.delete')}" aria-label="${t('playlist.remove_item')}" style="color:var(--text-muted);background:none;border:none;cursor:pointer;padding:4px;border-radius:4px">
          <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><line x1="18" y1="6" x2="6" y2="18"/><line x1="6" y1="6" x2="18" y2="18"/></svg>
        </button>
      </div>
    </div>
  `).join('');

  itemsEl.querySelectorAll('.item-duration').forEach(input => {
    input.addEventListener('change', async (e) => {
      const itemId = e.target.dataset.itemId;
      const val = parseInt(e.target.value, 10);
      if (!val || val < 1) { e.target.value = 10; return; }
      try {
        await api.updatePlaylistItem(currentPlaylistId, itemId, { duration_sec: val });
        refreshAfterMutation();
      } catch (err) {
        showToast(err.message, 'error');
      }
    });
  });

  itemsEl.querySelectorAll('.item-remove').forEach(btn => {
    btn.addEventListener('click', async (e) => {
      const itemId = e.currentTarget.dataset.itemId;
      try {
        await api.deletePlaylistItem(currentPlaylistId, itemId);
        const playlist = await api.getPlaylist(currentPlaylistId);
        renderItems(playlist.items || []);
        refreshAfterMutation();
        showToast(t('playlist.toast.item_removed'));
      } catch (err) {
        showToast(err.message, 'error');
      }
    });
  });

  itemsEl.querySelectorAll('.item-move').forEach(btn => {
    btn.addEventListener('click', async (e) => {
      if (btn.disabled) return;
      const itemId = parseInt(e.currentTarget.dataset.itemId, 10);
      const dir = e.currentTarget.dataset.dir;
      const order = Array.from(itemsEl.querySelectorAll('.playlist-item'))
        .map(el => parseInt(el.dataset.itemId, 10));
      const idx = order.indexOf(itemId);
      const swap = dir === 'up' ? idx - 1 : idx + 1;
      if (swap < 0 || swap >= order.length) return;
      [order[idx], order[swap]] = [order[swap], order[idx]];
      try {
        const updated = await api.reorderPlaylistItems(currentPlaylistId, order);
        renderItems(updated);
        refreshAfterMutation();
      } catch (err) {
        showToast(err.message, 'error');
      }
    });
  });

  setupDragReorder(itemsEl);
}

function setupDragReorder(container) {
  let dragEl = null;

  container.addEventListener('dragstart', (e) => {
    dragEl = e.target.closest('.playlist-item');
    if (!dragEl) return;
    dragEl.style.opacity = '0.4';
    e.dataTransfer.effectAllowed = 'move';
  });

  container.addEventListener('dragend', () => {
    if (dragEl) dragEl.style.opacity = '';
    dragEl = null;
    container.querySelectorAll('.playlist-item').forEach(el => el.style.borderTop = '');
  });

  container.addEventListener('dragover', (e) => {
    e.preventDefault();
    e.dataTransfer.dropEffect = 'move';
    const target = e.target.closest('.playlist-item');
    container.querySelectorAll('.playlist-item').forEach(el => el.style.borderTop = '');
    if (target && target !== dragEl) {
      target.style.borderTop = '2px solid var(--primary)';
    }
  });

  container.addEventListener('drop', async (e) => {
    e.preventDefault();
    const target = e.target.closest('.playlist-item');
    if (!target || !dragEl || target === dragEl) return;

    container.insertBefore(dragEl, target);

    const order = Array.from(container.querySelectorAll('.playlist-item'))
      .map(el => parseInt(el.dataset.itemId, 10));

    try {
      const items = await api.reorderPlaylistItems(currentPlaylistId, order);
      renderItems(items);
      refreshAfterMutation();
    } catch (err) {
      showToast(err.message, 'error');
      const playlist = await api.getPlaylist(currentPlaylistId);
      renderItems(playlist.items || []);
    }
  });
}

function inlineEdit(playlist, field) {
  const el = field === 'name' ? document.getElementById('playlistTitle') : document.getElementById('playlistDesc');
  if (!el) return;

  const current = playlist[field] || '';
  const isName = field === 'name';

  if (isName) {
    const input = document.createElement('input');
    input.type = 'text';
    input.className = 'input';
    input.value = current;
    input.style.cssText = 'font-size:24px;font-weight:700;padding:2px 8px;width:100%';
    el.replaceWith(input);
    input.focus();
    input.select();

    async function save() {
      const val = input.value.trim();
      if (!val) { input.value = current; return; }
      try {
        const updated = await api.updatePlaylist(playlist.id, { [field]: val });
        playlist[field] = updated[field];
      } catch (err) {
        showToast(err.message, 'error');
      }
      const newEl = document.createElement('h1');
      newEl.id = 'playlistTitle';
      newEl.style.cursor = 'pointer';
      newEl.title = t('playlist.click_to_rename');
      newEl.textContent = playlist.name;
      input.replaceWith(newEl);
      newEl.addEventListener('click', () => inlineEdit(playlist, 'name'));
    }

    input.addEventListener('blur', save);
    input.addEventListener('keydown', (e) => { if (e.key === 'Enter') input.blur(); if (e.key === 'Escape') { input.value = current; input.blur(); } });
  } else {
    const input = document.createElement('textarea');
    input.className = 'input';
    input.value = current;
    input.style.cssText = 'font-size:13px;padding:4px 8px;width:100%;height:40px;resize:vertical';
    el.replaceWith(input);
    input.focus();

    async function save() {
      const val = input.value.trim();
      try {
        const updated = await api.updatePlaylist(playlist.id, { description: val });
        playlist.description = updated.description;
      } catch (err) {
        showToast(err.message, 'error');
      }
      const newEl = document.createElement('div');
      newEl.className = 'subtitle';
      newEl.id = 'playlistDesc';
      newEl.style.cursor = 'pointer';
      newEl.title = t('playlist.click_to_edit_desc');
      if (playlist.description) {
        newEl.textContent = playlist.description;
      } else {
        newEl.innerHTML = `<span style="opacity:0.5">${t('playlist.add_desc_placeholder')}</span>`;
      }
      input.replaceWith(newEl);
      newEl.addEventListener('click', () => inlineEdit(playlist, 'description'));
    }

    input.addEventListener('blur', save);
    input.addEventListener('keydown', (e) => { if (e.key === 'Escape') { input.value = current; input.blur(); } });
  }
}

async function showAddItemModal(playlistId) {
  const modal = document.createElement('div');
  modal.style.cssText = 'position:fixed;inset:0;background:rgba(0,0,0,0.6);display:flex;align-items:center;justify-content:center;z-index:1000';
  modal.innerHTML = `
    <div style="background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;max-width:560px;width:95vw;max-height:80vh;display:flex;flex-direction:column">
      <h3 style="margin-bottom:16px;color:var(--text-primary)">${t('playlist.add_modal_title')}</h3>
      <div style="display:flex;gap:8px;margin-bottom:12px">
        <button class="btn btn-primary btn-sm tab-btn active" data-tab="content">${t('playlist.tab_content')}</button>
        <button class="btn btn-secondary btn-sm tab-btn" data-tab="widgets">${t('playlist.tab_widgets')}</button>
      </div>
      <input type="text" id="addItemSearch" class="input" placeholder="${t('playlist.search_placeholder')}" style="width:100%;margin-bottom:12px">
      <div id="addItemList" style="flex:1;overflow-y:auto;min-height:200px;max-height:400px"></div>
      <div style="display:flex;justify-content:flex-end;margin-top:16px">
        <button class="btn btn-secondary" id="closeAddModal">${t('playlist.close')}</button>
      </div>
    </div>
  `;
  document.body.appendChild(modal);

  let activeTab = 'content';
  let allContent = [];
  let allWidgets = [];

  try {
    [allContent, allWidgets] = await Promise.all([
      api.getContent(),
      api.getWidgets ? api.getWidgets() : Promise.resolve([])
    ]);
  } catch (err) {
    document.getElementById('addItemList').innerHTML = `<div style="color:var(--text-muted);padding:20px;text-align:center">${t('playlist.load_failed', { error: esc(err.message) })}</div>`;
  }

  function renderTab() {
    const list = document.getElementById('addItemList');
    const search = (document.getElementById('addItemSearch')?.value || '').toLowerCase();
    const items = activeTab === 'content' ? allContent : allWidgets;
    const filtered = items.filter(item => {
      const name = (item.filename || item.name || '').toLowerCase();
      return name.includes(search);
    });

    if (!filtered.length) {
      list.innerHTML = `<div style="color:var(--text-muted);padding:20px;text-align:center">${activeTab === 'content' ? t('playlist.no_content_found') : t('playlist.no_widgets_found')}</div>`;
      return;
    }

    list.innerHTML = filtered.map(item => {
      const isWidget = activeTab === 'widgets';
      const name = item.filename || item.name || t('common.unknown');
      const sub = isWidget ? (item.widget_type || t('playlist.item_widget')) : (item.mime_type || '');
      const thumb = item.thumbnail_path ? `/uploads/thumbnails/${esc(item.thumbnail_path.split('/').pop())}` : null;
      return `
        <div class="add-item-row" data-id="${esc(item.id)}" data-type="${isWidget ? 'widget' : 'content'}" style="display:flex;align-items:center;gap:12px;padding:10px;border-radius:var(--radius);cursor:pointer;transition:background 0.1s">
          <div style="width:40px;height:30px;border-radius:4px;overflow:hidden;background:var(--bg-input);flex-shrink:0;display:flex;align-items:center;justify-content:center">
            ${thumb ? `<img src="${thumb}" style="width:100%;height:100%;object-fit:cover">` : '<div style="color:var(--text-muted);opacity:0.4"><svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><rect x="3" y="3" width="18" height="18" rx="2"/></svg></div>'}
          </div>
          <div style="flex:1;min-width:0">
            <div style="font-size:13px;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis">${esc(name)}</div>
            <div style="font-size:11px;color:var(--text-muted)">${esc(sub)}</div>
          </div>
          <button class="btn btn-primary btn-sm add-item-btn" data-id="${esc(item.id)}" data-type="${isWidget ? 'widget' : 'content'}">${t('playlist.add_btn')}</button>
        </div>
      `;
    }).join('');

    list.querySelectorAll('.add-item-btn').forEach(btn => {
      btn.addEventListener('click', async (e) => {
        e.stopPropagation();
        const id = btn.dataset.id;
        const type = btn.dataset.type;
        const data = type === 'widget' ? { widget_id: id } : { content_id: id };
        try {
          btn.disabled = true;
          btn.textContent = t('playlist.adding');
          await api.addPlaylistItem(playlistId, data);
          btn.textContent = t('playlist.added');
          btn.classList.remove('btn-primary');
          btn.classList.add('btn-secondary');
          refreshAfterMutation();
        } catch (err) {
          btn.disabled = false;
          btn.textContent = t('playlist.add_btn');
          showToast(err.message, 'error');
        }
      });
    });
  }

  modal.querySelectorAll('.tab-btn').forEach(btn => {
    btn.addEventListener('click', () => {
      activeTab = btn.dataset.tab;
      modal.querySelectorAll('.tab-btn').forEach(b => {
        b.classList.toggle('btn-primary', b.dataset.tab === activeTab);
        b.classList.toggle('btn-secondary', b.dataset.tab !== activeTab);
        b.classList.toggle('active', b.dataset.tab === activeTab);
      });
      renderTab();
    });
  });

  document.getElementById('addItemSearch').addEventListener('input', renderTab);

  document.getElementById('closeAddModal').addEventListener('click', () => modal.remove());
  modal.addEventListener('click', (e) => { if (e.target === modal) modal.remove(); });

  renderTab();
}