EventStream.hs

-- @generated by keiro-dsl 0.18.0.0 (language keiro-dsl 6) from aggregate ReplayLedger; do not edit.
module Generated.CheckedMappingReplay.ReplayLedger.EventStream
  ( replayLedgerCategory
  , replayLedgerCommandCategory
  , replayLedgerEventStream
  , replayLedgerEventStreamDef
  , ReplayLedgerEventStream
  , ReplayLedgerEventStreamDef
  , replayLedgerSnapshotFixture
  ) where

import Generated.CheckedMappingReplay.ReplayLedger.Domain
import Generated.CheckedMappingReplay.ReplayLedger.Codec (replayLedgerCodec)
import Generated.CheckedMappingReplay.ReplayLedger.Transducer (replayLedgerFoldFingerprint, replayLedgerTransducer)
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.
replayLedgerCategory :: Stream.StreamCategory ReplayLedgerEventStreamDef
replayLedgerCategory = Stream.categoryUnsafe "replayLedger"

-- The same category text, typed for command envelopes such as PMCommand.
replayLedgerCommandCategory :: Stream.StreamCategory ReplayLedgerCommand
replayLedgerCommandCategory = Stream.categoryUnsafe "replayLedger"

type ReplayLedgerEventStreamDef =
  EventStream (HsPred ReplayLedgerRegs ReplayLedgerCommand) ReplayLedgerRegs ReplayLedgerVertex ReplayLedgerCommand ReplayLedgerEvent

type ReplayLedgerEventStream =
  ValidatedEventStream (HsPred ReplayLedgerRegs ReplayLedgerCommand) ReplayLedgerRegs ReplayLedgerVertex ReplayLedgerCommand ReplayLedgerEvent

replayLedgerEventStreamDef :: ReplayLedgerEventStreamDef
replayLedgerEventStreamDef =
  EventStream
    { transducer = replayLedgerTransducer,
      initialState = ReplayLedgerEmpty,
      initialRegisters = initialReplayLedgerRegs,
      eventCodec = replayLedgerCodec,
      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 replayLedgerFoldFingerprint (defaultStateCodec 1))
    }

replayLedgerSnapshotFixture :: (Int, Text)
replayLedgerSnapshotFixture = (1, "checked-mapping-replay-v1")

replayLedgerEventStream :: ReplayLedgerEventStream
replayLedgerEventStream =
  mkEventStreamOrThrow "ReplayLedger" replayLedgerEventStreamDef