import { isWriteOutcomeUnknown } from '@/utils/request-outcome.js'

export const createNonIdempotentWriteGuard = () => {
  let uncertainPayloadSnapshot = ''

  return {
    begin(payload) {
      const payloadSnapshot = JSON.stringify(payload)
      return payloadSnapshot === uncertainPayloadSnapshot ? null : payloadSnapshot
    },

    recordFailure(payloadSnapshot, error) {
      if (!isWriteOutcomeUnknown(error)) return false
      uncertainPayloadSnapshot = payloadSnapshot
      return true
    }
  }
}