Transducer.hs

{-# LANGUAGE BlockArguments #-}
{-# LANGUAGE QualifiedDo #-}
-- @generated by keiro-dsl 0.17.0.0 (language keiro-dsl 6) from aggregate IncidentSaga; do not edit.
module Generated.ProcessTimers.IncidentSaga.Transducer
  ( incidentSagaTransducer
  , incidentSagaFoldFingerprint
  , BehaviorOwnership (..)
  , incidentSagaPredicateVerifications
  ) where

import Generated.ProcessTimers.IncidentSaga.Domain
import Data.Text (Text)
import Keiki.Builder qualified as B
import Keiki.Core (HsPred, SymTransducer)
import Keiki.Core qualified as K
import Keiki.Symbolic qualified as S

incidentSagaTransducer
  :: SymTransducer
       (HsPred IncidentSagaRegs IncidentSagaCommand)
       IncidentSagaRegs
       IncidentSagaVertex
       IncidentSagaCommand
       IncidentSagaEvent
incidentSagaTransducer =
  B.buildTransducer IncidentSagaOpen initialIncidentSagaRegs isTerminal do
    B.from IncidentSagaOpen do
      B.onCmd inCtorRecordIncident $ \d -> B.do
        B.emit wireIncidentRecorded (IncidentRecordedTermFields
          { incidentId = d.incidentId
          })
        B.goto IncidentSagaOpen
 where
  isTerminal = \case

    _ -> False

incidentSagaFoldFingerprint :: Text
incidentSagaFoldFingerprint = "d897adc757953835f57708b0f13684f1"

data BehaviorOwnership = GeneratedOwned | HoleOwned
  deriving stock (Eq, Show)

-- Every checked transition predicate is audited through Keiki's conservative
-- symbolic verifier. Opaque Hole terms remain explicitly unverified.
incidentSagaPredicateVerifications :: IO [(Text, BehaviorOwnership, S.PredicateVerification)]
incidentSagaPredicateVerifications = sequence
  [ verifyTransition "transition1OpenRecordIncident" GeneratedOwned IncidentSagaOpen 0
  ]
 where
  verifyTransition label owner source edgeIndex =
    case drop edgeIndex (K.edgesOut incidentSagaTransducer source) of
      K.Edge predicate _ _ _ _ : _ -> (\result -> (label, owner, result)) <$> S.verifyPredicate predicate
      [] -> pure (label, owner, S.UnverifiedSolverFailure "generated transition edge missing")