Podcast: resume where you left off, synced between devices (shared progress store with audiobooks)

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

podcast.js

@@ -1,5 +1,6 @@
 // Podcasts from Podgrab (https://github.com/akhilrex/podgrab). The hub talks to Podgrab's own web API on the person's behalf, so the
 // Podgrab password (PODGRAB_PASSWORD, user "podgrab") stays on the server and the browser only ever talks to the hub.
+const prog = require('./progress')('podcast-progress.json'); // where each person got to in each episode
 const BASE = (process.env.PODCAST_URL || 'https://podcast.necloud.us/').replace(/\/$/, '');
 const AUTH = process.env.PODGRAB_PASSWORD ? 'Basic ' + Buffer.from('podgrab:' + process.env.PODGRAB_PASSWORD).toString('base64') : '';
 
@@ -15,7 +16,6 @@ const json = (res, code, o) => { res.writeHead(code, { 'content-type': 'applicat
 const enabled = () => !!BASE;
 
 async function handle(req, res) {
-  if (!BASE) return json(res, 503, { error: 'Podcasts are not set up on this server' });
   const u = new URL(req.url, 'http://x'), p = u.pathname.slice('/api/podcast'.length) || '/';
   if (p === '/discover') { // find new shows in Apple's free podcast directory (the search words go to Apple; nothing else does)
     const q = (u.searchParams.get('q') || '').trim().slice(0, 100);
@@ -27,6 +27,14 @@ async function handle(req, res) {
       return json(res, 200, out);
     } catch { return json(res, 502, { error: 'The podcast directory did not answer' }); }
   }
+  if (p === '/progress') {
+    if (req.method === 'GET') return json(res, 200, prog.load());
+    if (req.method !== 'POST') return json(res, 405, { error: 'Method not allowed' });
+    const chunks = []; let n = 0; for await (const c of req) { n += c.length; if (n > 1e6) return json(res, 413, { error: 'Too large' }); chunks.push(c); }
+    let body; try { body = JSON.parse(Buffer.concat(chunks).toString('utf8') || '{}'); } catch { return json(res, 400, { error: 'Bad request' }); }
+    return json(res, 200, prog.merge(body));
+  }
+  if (!BASE) return json(res, 503, { error: 'Podcasts are not set up on this server' });
   if (p === '/status') return json(res, 200, { ok: true, host: new URL(BASE).host });
   if (!ALLOWED.some(([m, re]) => m === req.method && re.test(p))) return json(res, 404, { error: 'Not found' });
   const hasBody = req.method === 'POST' || req.method === 'PATCH';