Share songs, albums, movies, shows, podcasts and audiobooks to chat as cards

A share message carries kind, title, subtitle, same-origin art and a hash-route
link, validated on the server. It counts as unread, reads as '🎵 Shared a song:
Title' in pushes and Notifications, and is found by search. In Chat a card opens
the item, or says it is not available when the recipient lacks that tab.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

public/video.js

@@ -170,7 +170,7 @@ async function videoItem(id) {
     <div class="vinfo"><h1 style="margin:0">${esc(m.type === 'episode' ? m.title : m.title)}</h1>${m.type === 'episode' ? `<p class="sub" style="margin:2px 0">${vdEp(m)}</p>` : m.type === 'season' ? `<p class="sub" style="margin:2px 0">${esc(m.parentTitle || '')}</p>` : ''}<p class="sub" style="margin:4px 0">${esc(meta)}</p>
       <div class="bar" id="vact" style="margin:10px 0">${playable ? `<button class="btn" id="vplay">${icon('play')}${m.viewOffset ? 'Resume · ' + vdClock(m.viewOffset / 1000) : 'Play'}</button>${m.viewOffset ? '<button class="btn ghost" id="vstart">From the start</button>' : ''}`
         : m.type === 'show' && next ? `<button class="btn" id="vnext">${icon('play')}${next.viewOffset ? 'Resume' : 'Play'} ${vdEp(next).replace(/^.*· /, '')}</button>` : ''}
-        ${m.type !== 'season' && m.type !== 'collection' ? `<button class="btn ghost" id="vseen">${m.viewCount > 0 || (m.leafCount && m.viewedLeafCount === m.leafCount) ? 'Mark unwatched' : 'Mark watched'}</button>` : ''}</div></div></div></div>
+        ${allowed('chat') && m.type !== 'collection' ? `<button class="btn ghost" id="vshare">${icon('send')}Share</button>` : ''}${m.type !== 'season' && m.type !== 'collection' ? `<button class="btn ghost" id="vseen">${m.viewCount > 0 || (m.leafCount && m.viewedLeafCount === m.leafCount) ? 'Mark unwatched' : 'Mark watched'}</button>` : ''}</div></div></div></div>
     <p class="vsum">${esc(m.summary || '')}</p>
     ${m.Genre && m.Genre.length ? `<p class="sub"><b>Genres</b> ${names(m.Genre)}</p>` : ''}${m.Director && m.Director.length ? `<p class="sub"><b>Director</b> ${names(m.Director, 'tag', 3)}</p>` : ''}${m.Role && m.Role.length ? `<p class="sub"><b>Cast</b> ${names(m.Role, 'tag', 8)}</p>` : ''}
     <div id="vkids"></div></div>`;
@@ -196,6 +196,8 @@ async function videoItem(id) {
   }).catch(() => {});
   const pimg = document.querySelector('.vpost img'); // tint the backdrop with the poster's own colour
   if (pimg) { const tint = () => { try { const c = document.createElement('canvas'); c.width = c.height = 8; const x = c.getContext('2d'); x.drawImage(pimg, 0, 0, 8, 8); const d = x.getImageData(0, 0, 8, 8).data; let r = 0, g = 0, b = 0; for (let i = 0; i < d.length; i += 4) { r += d[i]; g += d[i + 1]; b += d[i + 2]; } const n = d.length / 4, h = document.querySelector('.vhero'); if (h) h.style.setProperty('--vtint', `rgb(${Math.round(r / n)}, ${Math.round(g / n)}, ${Math.round(b / n)})`); } catch {} }; pimg.complete && pimg.naturalWidth ? tint() : pimg.addEventListener('load', tint, { once: true }); }
+  if ($('#vshare')) $('#vshare').onclick = () => shareMedia({ kind: m.type === 'movie' ? 'movie' : m.type === 'episode' ? 'episode' : 'show', title: m.type === 'episode' ? m.title : m.title, sub: m.type === 'episode' ? [m.grandparentTitle, 'S' + m.parentIndex + 'E' + m.index].filter(Boolean).join(' · ') : m.type === 'season' ? m.parentTitle || '' : m.year ? String(m.year) : '', art: vdArt(m.thumb, 200, 300), link: '#/video/item/' + id });
+  if ($('#vshare')) $('#vshare').onclick = () => shareMedia({ kind: m.type === 'movie' ? 'movie' : m.type === 'episode' ? 'episode' : 'show', title: m.type === 'episode' ? m.title : m.title, sub: m.type === 'episode' ? [m.grandparentTitle, 'S' + m.parentIndex + 'E' + m.index].filter(Boolean).join(' · ') : m.type === 'season' ? m.parentTitle || '' : m.year ? String(m.year) : '', art: vdArt(m.thumb, 200, 300), link: '#/video/item/' + id });
   if ($('#vplay')) $('#vplay').onclick = () => { location.hash = `#/video/watch/${id}`; };
   if ($('#vstart')) $('#vstart').onclick = () => { store.set('video_from_start', id); location.hash = `#/video/watch/${id}`; };
   if ($('#vnext')) $('#vnext').onclick = () => { location.hash = `#/video/watch/${next.ratingKey}`; };