Function parseCopilotPaymentRequiredError

app/src/lib/copilot-error.ts:138–189

(
  responseText: string,
  retryAfter: string | null
)

}

export function parseCopilotPaymentRequiredError(
  responseText: string,
  retryAfter: string | null
): CopilotError {
  const trimmedResponse = responseText.trim()
  let message = trimmedResponse
  let paymentRequiredErrorCode: CopilotPaymentRequiredErrorCode | undefined

  if (trimmedResponse.length > 0) {
    try {
      const parsed = JSON.parse(trimmedResponse)
      if (isRecord(parsed)) {
        const error = parsed.error
        const topLevelMessage = getStringProperty(parsed, 'message')

        if (isRecord(error)) {
          const errorMessage = getStringProperty(error, 'message')
          const errorCode = getStringProperty(error, 'code')

          if (errorMessage !== undefined && errorMessage.trim().length > 0) {
            message = errorMessage
          } else if (
            topLevelMessage !== undefined &&
            topLevelMessage.trim().length > 0
          ) {
            message = topLevelMessage
          }

          if (isPaymentRequiredErrorCode(errorCode)) {
            paymentRequiredErrorCode = errorCode
          }
        } else if (
          topLevelMessage !== undefined &&
          topLevelMessage.trim().length > 0
        ) {
          message = topLevelMessage
        }
      }
    } catch {
      // Preserve the raw response body when the server doesn't return JSON.
    }
  }

  if (message.length === 0) {
    message = getFallbackPaymentRequiredMessage(paymentRequiredErrorCode)
  }

  return new CopilotError(message, HttpStatusCode.PaymentRequired, {
    paymentRequiredErrorCode,
    retryAfter: retryAfter ?? undefined,
  })
}

function getRetryAfterMessage(retryAfter: string) {
  if (/^\d+$/.test(retryAfter)) {