Function followExtraction

static/mobile/app.js:631–658

(jobId)

// SSE with a REST-poll fallback (mirrors the desktop's resilience, simplified).
function followExtraction(jobId) {
  if (extractES) { extractES.close(); extractES = null; }
  if (extractPoll) { clearInterval(extractPoll); extractPoll = null; }

  const startPolling = () => {
    if (extractPoll) return;
    extractPoll = setInterval(async () => {
      try {
        const r = await fetch(`/api/jobs/${jobId}`, { cache: "no-store" });
        if (!r.ok) throw new Error(String(r.status));
        if (_onExtractState(jobId, await r.json())) { clearInterval(extractPoll); extractPoll = null; }
      } catch { /* keep polling */ }
    }, 2500);
  };

  try {
    const es = new EventSource(`/api/jobs/${jobId}/events`);
    extractES = es;
    es.onmessage = (ev) => {
      let s;
      try { s = JSON.parse(ev.data); } catch { return; }
      if (_onExtractState(jobId, s)) { es.close(); extractES = null; }
    };
    es.onerror = () => { es.close(); extractES = null; startPolling(); };
  } catch {
    startPolling();
  }
}

function miniPlayer() {
  if (state.tab === "mixer" || !state.current) return "";