Research Chat: Web-Chatoberfläche für den Research-Agent (DeepSeek v4 Flash + Playwright, Docker/Podman)

lib/queue.js

@@ -0,0 +1,48 @@
+const { EventEmitter } = require('node:events');
+
+const events = new EventEmitter();
+events.setMaxListeners(100);
+
+let queue = [];
+let running = false;
+
+/** Einen Job anmelden. Läuft sofort, wenn nichts anderes läuft, sonst wartet er. */
+function enqueue(job) {
+  queue.push(job);
+  events.emit('job-queued', job.sessionId);
+  processNext();
+}
+
+/** Job aus der Warteschlange holen und ausführen. */
+async function processNext() {
+  if (running || queue.length === 0) return;
+  const job = queue.shift();
+  running = true;
+  try {
+    await job.run();
+  } catch (e) {
+    job.onError?.(e);
+  } finally {
+    running = false;
+    events.emit('job-finished', job.sessionId);
+    processNext();
+  }
+}
+
+function queuedBefore(sessionId) {
+  return queue.findIndex((j) => j.sessionId === sessionId);
+}
+
+function isRunning(sessionId) {
+  return running;
+}
+
+function cancelQueued(sessionId) {
+  queue = queue.filter((j) => j.sessionId !== sessionId);
+}
+
+function state() {
+  return { running, queued: queue.map((j) => j.sessionId) };
+}
+
+module.exports = { events, enqueue, queuedBefore, isRunning, cancelQueued, state };