การ์ดและโมดูลที่ปลอดภัย

data class SecureRequest(
  val operation: String,
  val testHandle: String,
)

sealed interface SecureResult {
  data object Accepted : SecureResult
  data class Declined(val reason: String) : SecureResult
  data class Failed(val reason: String) : SecureResult
}

interface SecurePort {
  suspend fun execute(request: SecureRequest): SecureResult
}

suspend fun executeApprovedOperation(port: SecurePort): SecureResult =
  runCatching {
    port.execute(SecureRequest("approved-test", "fixture-01"))
  }.getOrElse {
    SecureResult.Failed("secure-operation-failed")
  }