Transducer.hs

{-# LANGUAGE BlockArguments #-}
{-# LANGUAGE QualifiedDo #-}
-- @generated by keiro-dsl 0.18.0.0 (language keiro-dsl 6) from aggregate CalendarStore; do not edit.
module Generated.CalendarDays.CalendarStore.Transducer
  ( calendarStoreTransducer
  , calendarStoreFoldFingerprint
  , BehaviorOwnership (..)
  , calendarStorePredicateVerifications
  ) where

import Generated.CalendarDays.CalendarStore.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
import Keiki.Builder ((=:))

calendarStoreTransducer
  :: SymTransducer
       (HsPred CalendarStoreRegs CalendarStoreCommand)
       CalendarStoreRegs
       CalendarStoreVertex
       CalendarStoreCommand
       CalendarStoreEvent
calendarStoreTransducer =
  B.buildTransducer CalendarStoreEmpty initialCalendarStoreRegs isTerminal do
    B.from CalendarStoreEmpty do
      B.onCmd inCtorStoreDate $ \d -> B.do
        B.slot @"current" =: d.day
        B.emit wireDateStored (DateStoredTermFields
          { day = d.day
          , optionalDay = d.optionalDay
          , envelope = d.envelope
          })
        B.emit wireDateAudited (DateAuditedTermFields
          { day = d.day
          , optionalDay = d.optionalDay
          , envelope = d.envelope
          })
        B.goto CalendarStoreStored
 where
  isTerminal = \case
    CalendarStoreStored -> True
    _ -> False

calendarStoreFoldFingerprint :: Text
calendarStoreFoldFingerprint = "0e4a982b146fd9211b6f90608e193156"

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.
calendarStorePredicateVerifications :: IO [(Text, BehaviorOwnership, S.PredicateVerification)]
calendarStorePredicateVerifications = sequence
  [ verifyTransition "transition1EmptyStoreDate" GeneratedOwned CalendarStoreEmpty 0
  ]
 where
  verifyTransition label owner source edgeIndex =
    case drop edgeIndex (K.edgesOut calendarStoreTransducer source) of
      K.Edge predicate _ _ _ _ : _ -> (\result -> (label, owner, result)) <$> S.verifyPredicate predicate
      [] -> pure (label, owner, S.UnverifiedSolverFailure "generated transition edge missing")