Function useTextStream

src/components/ui/response-stream.tsx:31–280

({
  textStream,
  speed = 20,
  mode = "typewriter",
  onComplete,
  fadeDuration,
  segmentDelay,
  characterChunkSize,
  onError,
}: UseTextStreamOptions)

};

function useTextStream({
  textStream,
  speed = 20,
  mode = "typewriter",
  onComplete,
  fadeDuration,
  segmentDelay,
  characterChunkSize,
  onError,
}: UseTextStreamOptions): UseTextStreamResult {
  const [displayedText, setDisplayedText] = useState("");
  const [isComplete, setIsComplete] = useState(false);
  const [segments, setSegments] = useState<{ text: string; index: number }[]>(
    []
  );

  const speedRef = useRef(speed);
  const modeRef = useRef(mode);
  const currentIndexRef = useRef(0);
  const animationRef = useRef<number | null>(null);
  const fadeDurationRef = useRef(fadeDuration);
  const segmentDelayRef = useRef(segmentDelay);
  const characterChunkSizeRef = useRef(characterChunkSize);
  const streamRef = useRef<AbortController | null>(null);
  const completedRef = useRef(false);
  const onCompleteRef = useRef(onComplete);

  useEffect(() => {
    speedRef.current = speed;
    modeRef.current = mode;
    fadeDurationRef.current = fadeDuration;
    segmentDelayRef.current = segmentDelay;
    characterChunkSizeRef.current = characterChunkSize;
  }, [speed, mode, fadeDuration, segmentDelay, characterChunkSize]);

  useEffect(() => {
    onCompleteRef.current = onComplete;
  }, [onComplete]);

  const getChunkSize = useCallback(() => {
    if (typeof characterChunkSizeRef.current === "number") {
      return Math.max(1, characterChunkSizeRef.current);
    }

    const normalizedSpeed = Math.min(100, Math.max(1, speedRef.current));

    if (modeRef.current === "typewriter") {
      if (normalizedSpeed < 25) return 1;
      return Math.max(1, Math.round((normalizedSpeed - 25) / 10));
    } else if (modeRef.current === "fade") {
      return 1;
    }

    return 1;
  }, []);

  const getProcessingDelay = useCallback(() => {
    if (typeof segmentDelayRef.current === "number") {