Function scheduleFromExpiresIn

src/bridge/jwtUtils.ts:148–164

* Schedule refresh using an explicit TTL (seconds until expiry) rather * than decoding a JWT's exp claim. Used by callers whose JWT is opaque * (e.g. POST /v1/code/sessions/{id}/bridge returns expires_in directly).

(
    sessionId: string,
    expiresInSeconds: number,
  )

   * (e.g. POST /v1/code/sessions/{id}/bridge returns expires_in directly).
   */
  function scheduleFromExpiresIn(
    sessionId: string,
    expiresInSeconds: number,
  ): void {
    const existing = timers.get(sessionId)
    if (existing) clearTimeout(existing)
    const gen = nextGeneration(sessionId)
    // Clamp to 30s floor — if refreshBufferMs exceeds the server's expires_in
    // (e.g. very large buffer for frequent-refresh testing, or server shortens
    // expires_in unexpectedly), unclamped delayMs ≤ 0 would tight-loop.
    const delayMs = Math.max(expiresInSeconds * 1000 - refreshBufferMs, 30_000)
    logForDebugging(
      `[${label}:token] Scheduled token refresh for sessionId=${sessionId} in ${formatDuration(delayMs)} (expires_in=${expiresInSeconds}s, buffer=${refreshBufferMs / 1000}s)`,
    )
    const timer = setTimeout(doRefresh, delayMs, sessionId, gen)
    timers.set(sessionId, timer)
  }

  async function doRefresh(sessionId: string, gen: number): Promise<void> {
    let oauthToken: string | undefined