const CLIPS_JSON_URL = '/data/clips.json';

const clipPlaySVG = '<svg viewBox="0 0 24 24" fill="#fff"><path d="M8 5v14l11-7z"/></svg>';

function escapeHTML(str) {
  const el = document.createElement('span');
  el.textContent = str;
  return el.innerHTML;
}

function renderClipCard(clip, featured) {
  const card = document.createElement('div');
  card.className = 'clip-card' + (featured ? ' clip-card-featured' : '');

  const youtubeId = (clip.youtube_id || '').replace(/[^a-zA-Z0-9_-]/g, '');
  if (youtubeId) card.dataset.youtubeId = youtubeId;
  const hasVideo = !!youtubeId;
  const epLabel = clip.episode_number ? `Episode ${Number(clip.episode_number)}` : '';
  const title = escapeHTML(clip.title || '');
  const desc = escapeHTML(clip.description || '');

  const thumbImg = clip.thumbnail && /^[\w\/.-]+$/.test(clip.thumbnail)
    ? `<img class="clip-card-thumb" src="/${clip.thumbnail}" alt="${title}" loading="lazy">`
    : '';

  card.innerHTML = `
    <div class="clip-card-inner">
      ${thumbImg}
      <div class="clip-card-overlay">
        <span class="clip-episode-label">${epLabel}</span>
        <h3 class="clip-card-title">${title}</h3>
        <p class="clip-card-desc">${desc}</p>
        ${hasVideo ? `<button class="clip-play-btn" aria-label="Play clip">${clipPlaySVG}</button>` : ''}
      </div>
    </div>
  `;

  if (hasVideo) {
    card.querySelector('.clip-play-btn').addEventListener('click', (e) => {
      e.stopPropagation();
      const inner = card.querySelector('.clip-card-inner');
      inner.innerHTML = `<iframe src="https://www.youtube-nocookie.com/embed/${youtubeId}?autoplay=1&rel=0" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe>`;
    });
  }

  return card;
}

async function fetchClips() {
  try {
    const res = await fetch(CLIPS_JSON_URL);
    if (!res.ok) throw new Error('Failed to fetch clips');
    return await res.json();
  } catch (err) {
    console.error('Error loading clips:', err);
    return [];
  }
}

async function initClipsPage() {
  const clips = await fetchClips();
  if (!clips.length) return;

  const featuredContainer = document.querySelector('.clips-featured');
  const gridContainer = document.querySelector('.clips-grid');

  if (featuredContainer) {
    clips.filter(c => c.featured).forEach(clip => {
      featuredContainer.appendChild(renderClipCard(clip, true));
    });
  }

  if (gridContainer) {
    clips.forEach(clip => {
      gridContainer.appendChild(renderClipCard(clip, false));
    });
  }
}

async function renderFeaturedClipsInline(containerId) {
  const container = document.getElementById(containerId);
  if (!container) return;

  const clips = await fetchClips();
  const featured = clips.filter(c => c.featured);

  featured.forEach(clip => {
    container.appendChild(renderClipCard(clip, true));
  });
}

// Auto-init if clips page containers exist
if (document.querySelector('.clips-featured') || document.querySelector('.clips-grid')) {
  initClipsPage();
}