Function setMockEarlyWarning

src/services/mockRateLimits.ts:276–309

(
  claimAbbrev: '5h' | '7d' | 'overage',
  utilization: number,
  hoursFromNow?: number,
)

// utilization: 0-1 (e.g., 0.92 for 92% used)
// hoursFromNow: hours until reset (default: 4 for 5h, 120 for 7d)
export function setMockEarlyWarning(
  claimAbbrev: '5h' | '7d' | 'overage',
  utilization: number,
  hoursFromNow?: number,
): void {
  if (process.env.USER_TYPE !== 'ant') {
    return
  }

  mockEnabled = true

  // Clear ALL early warning headers first (5h is checked before 7d, so we need
  // to clear 5h headers when testing 7d to avoid 5h taking priority)
  clearMockEarlyWarning()

  // Default hours based on claim type (early in window to trigger warning)
  const defaultHours = claimAbbrev === '5h' ? 4 : 5 * 24
  const hours = hoursFromNow ?? defaultHours
  const resetsAt = Math.floor(Date.now() / 1000) + hours * 3600

  mockHeaders[`anthropic-ratelimit-unified-${claimAbbrev}-utilization`] =
    String(utilization)
  mockHeaders[`anthropic-ratelimit-unified-${claimAbbrev}-reset`] =
    String(resetsAt)
  // Set the surpassed-threshold header to trigger early warning
  mockHeaders[
    `anthropic-ratelimit-unified-${claimAbbrev}-surpassed-threshold`
  ] = String(utilization)

  // Set status to allowed so early warning logic can upgrade it
  if (!mockHeaders['anthropic-ratelimit-unified-status']) {
    mockHeaders['anthropic-ratelimit-unified-status'] = 'allowed'
  }
}

// Clear mock early warning headers
export function clearMockEarlyWarning(): void {