Function useFreebuffSession

cli/src/hooks/use-freebuff-session.ts:429–692

()

 *   - plays a bell on transition from queued → active
 */
export function useFreebuffSession(): UseFreebuffSessionResult {
  const session = useFreebuffSessionStore((s) => s.session)
  const error = useFreebuffSessionStore((s) => s.error)

  useEffect(() => {
    const { setSession, setError } = useFreebuffSessionStore.getState()

    if (!IS_FREEBUFF) {
      setSession({ status: 'disabled' })
      return
    }

    const { token } = getAuthTokenDetails()
    if (!token) {
      logger.warn(
        {},
        '[freebuff-session] No auth token; skipping waiting-room admission',
      )
      setError('Not authenticated')
      return
    }

    let cancelled = false
    let abortController = new AbortController()
    let timer: ReturnType<typeof setTimeout> | null = null
    let previousStatus: FreebuffSessionResponse['status'] | null = null
    let restartGeneration = 0
    // Method for the NEXT tick. GET is read-only; POST claims/rotates a seat.
    // Startup is GET (probe before committing). After any POST completes we
    // flip back to GET. refresh() sets it to 'POST' for explicit join/rejoin;
    // the startup takeover branch does the same when the probe finds a seat.
    let nextMethod: 'GET' | 'POST' = 'GET'

    const apply = (next: FreebuffSessionResponse) => {
      if (next.status === 'queued' || next.status === 'active') {
        useFreebuffModelStore.getState().setSelectedModel(next.model)
        recordFreebuffInstanceOwner(next.instanceId)
      } else if (next.status === 'none' && next.accessTier === 'limited') {
        useFreebuffModelStore
          .getState()
          .setSelectedModel(LIMITED_FREEBUFF_MODEL_ID)
      }
      setSession(next)
      setError(null)
      previousStatus = next.status
    }

    const clearTimer = () => {
      if (timer) {
        clearTimeout(timer)
        timer = null
      }
    }

    const schedule = (ms: number) => {
      if (cancelled) return
      clearTimer()
      timer = setTimeout(tick, ms)