gonna break stuff now

webui/src/hooks/useWhepRestart.js

@@ -0,0 +1,28 @@
+import { useCallback, useEffect, useRef, useState } from 'react';
+import { RESTART_DELAY_MS } from '../components/RoverMediaPlayer/constants.js';
+
+export default function useWhepRestart(enabled = true) {
+  const timer = useRef(null);
+  const enabledRef = useRef(enabled);
+  const [restartToken, setRestartToken] = useState(0);
+  const cancelRestart = useCallback(() => {
+    clearTimeout(timer.current);
+    timer.current = null;
+  }, []);
+  useEffect(() => {
+    enabledRef.current = enabled;
+    if (!enabled) cancelRestart();
+  }, [enabled, cancelRestart]);
+  const scheduleRestart = useCallback(() => {
+    if (!enabledRef.current) return;
+    cancelRestart();
+    // Re-negotiate instead of reusing the failed PeerConnection. Callers that
+    // own session requests also use this token to obtain fresh authorization.
+    timer.current = setTimeout(() => {
+      timer.current = null;
+      setRestartToken(Date.now());
+    }, RESTART_DELAY_MS);
+  }, [cancelRestart]);
+  useEffect(() => cancelRestart, [cancelRestart]);
+  return { restartToken, scheduleRestart, cancelRestart };
+}