EventStream.hs

-- @generated by keiro-dsl 0.22.0.0 (language keiro-dsl 6) from aggregate ScopeGate; do not edit.
module Generated.MappedStructuralEnumEquality.ScopeGate.EventStream
  ( scopeGateCategory
  , scopeGateCommandCategory
  , scopeGateEventStream
  , scopeGateEventStreamDef
  , ScopeGateEventStream
  , ScopeGateEventStreamDef
  , scopeGateSnapshotFixture
  ) where

import Generated.MappedStructuralEnumEquality.ScopeGate.Domain
import Generated.MappedStructuralEnumEquality.ScopeGate.Codec (scopeGateCodec)
import Generated.MappedStructuralEnumEquality.ScopeGate.Transducer (scopeGateFoldFingerprint, scopeGateTransducer)
import Keiki.Core (HsPred)
import Keiro.EventStream (EventStream (..), SnapshotPolicy (..))
import Keiro.EventStream.Validate (ValidatedEventStream, mkEventStreamOrThrow)
import Data.Text (Text)
import Keiro.Snapshot.Codec (defaultStateCodec, withFoldFingerprint)
import Keiro.Stream qualified as Stream

-- The validated aggregate stream category (hole-kind 5: referenced, never retyped).
-- Entity streams are '<category>-<id>' via Keiro.Stream.entityStream.
-- categoryUnsafe is safe here because this generated literal passed the DSL category proof.
scopeGateCategory :: Stream.StreamCategory ScopeGateEventStreamDef
scopeGateCategory = Stream.categoryUnsafe "scopeGate"

-- The same category text, typed for command envelopes such as PMCommand.
scopeGateCommandCategory :: Stream.StreamCategory ScopeGateCommand
scopeGateCommandCategory = Stream.categoryUnsafe "scopeGate"

type ScopeGateEventStreamDef =
  EventStream (HsPred ScopeGateRegs ScopeGateCommand) ScopeGateRegs ScopeGateVertex ScopeGateCommand ScopeGateEvent

type ScopeGateEventStream =
  ValidatedEventStream (HsPred ScopeGateRegs ScopeGateCommand) ScopeGateRegs ScopeGateVertex ScopeGateCommand ScopeGateEvent

scopeGateEventStreamDef :: ScopeGateEventStreamDef
scopeGateEventStreamDef =
  EventStream
    { transducer = scopeGateTransducer,
      initialState = ScopeGateReady,
      initialRegisters = initialScopeGateRegs,
      eventCodec = scopeGateCodec,
      resolveStreamName = Stream.streamName,
      snapshotPolicy = Every 1,
      -- The snapshot discriminator composes: the spec's state-codec version (bump it
      -- in the spec's `state-codec version=` clause), keiki's register and
      -- control-state shape hashes, and this fold fingerprint derived from the
      -- spec's transition surface (guards, writes, emits, states, register
      -- initials, referenced rules). Spec-visible fold changes invalidate old
      -- snapshots automatically. Version-2 Hole-owned transitions additionally
      -- compose their explicit hand-owned FoldVersion tokens here; bump the
      -- corresponding token whenever that Hole behavior changes.
      stateCodec = Just (withFoldFingerprint scopeGateFoldFingerprint (defaultStateCodec 1))
    }

scopeGateSnapshotFixture :: (Int, Text)
scopeGateSnapshotFixture = (1, "scope-gate-v1")

scopeGateEventStream :: ScopeGateEventStream
scopeGateEventStream =
  mkEventStreamOrThrow "ScopeGate" scopeGateEventStreamDef