refactor(core): make v2 session inputs event sourced (#30785)

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Kit Langton 2026-06-04 19:24:30 -04:00 committed by GitHub
commit 76ecf2e58c
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43 changed files with 4671 additions and 757 deletions

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@ -1,14 +1,15 @@
export * as EventV2 from "./event"
import { Context, Effect, Layer, Option, PubSub, Schema, Stream } from "effect"
import { Cause, Context, Effect, Layer, Option, PubSub, Schema, Stream } from "effect"
import { and, asc, eq, gt } from "drizzle-orm"
import { Database } from "./database/database"
import { EventSequenceTable, EventTable } from "./event/sql"
import { Location } from "./location"
import { externalID, type ExternalID, NonNegativeInt, withStatics } from "./schema"
import { Identifier } from "./util/identifier"
import { isDeepStrictEqual } from "node:util"
export const ID = Schema.String.pipe(
export const ID = Schema.String.check(Schema.isStartsWith("evt_")).pipe(
Schema.brand("Event.ID"),
withStatics((schema) => ({
create: () => schema.make("evt_" + Identifier.ascending()),
@ -258,16 +259,47 @@ export const layerWith = (options?: LayerOptions) =>
.get()
.pipe(Effect.orDie)
const latest = row?.seq ?? -1
if (input && input.seq <= latest) return
if (input && row?.ownerID && row.ownerID !== input.ownerID) {
if (input.strictOwner) {
yield* Effect.die(
new InvalidSyncEventError({
type: event.type,
message: `Replay owner mismatch for aggregate ${aggregateID}: expected ${row.ownerID}, got ${input.ownerID ?? "none"}`,
}),
)
const encoded = syncRegistry
.get(versionedType(definition.type, sync.version))!
.encode(event.data) as Record<string, unknown>
if (input?.strictOwner && row?.ownerID && row.ownerID !== input.ownerID) {
yield* Effect.die(
new InvalidSyncEventError({
type: event.type,
message: `Replay owner mismatch for aggregate ${aggregateID}: expected ${row.ownerID}, got ${input.ownerID ?? "none"}`,
}),
)
}
if (input && input.seq <= latest) {
const stored = yield* db
.select()
.from(EventTable)
.where(and(eq(EventTable.aggregate_id, aggregateID), eq(EventTable.seq, input.seq)))
.get()
.pipe(Effect.orDie)
if (
stored?.id === event.id &&
stored.type === versionedType(definition.type, sync.version) &&
isDeepStrictEqual(stored.data, encoded)
) {
if (input.ownerID && row?.ownerID == null) {
yield* db
.update(EventSequenceTable)
.set({ owner_id: input.ownerID })
.where(eq(EventSequenceTable.aggregate_id, aggregateID))
.run()
.pipe(Effect.orDie)
}
return
}
yield* Effect.die(
new InvalidSyncEventError({
type: event.type,
message: `Replay diverged at aggregate ${aggregateID} sequence ${input.seq}`,
}),
)
}
if (input && row?.ownerID && row.ownerID !== input.ownerID) {
return
}
const seq = input?.seq ?? latest + 1
@ -279,15 +311,25 @@ export const layerWith = (options?: LayerOptions) =>
}),
)
}
const stored = yield* db
.select({ aggregateID: EventTable.aggregate_id, seq: EventTable.seq })
.from(EventTable)
.where(eq(EventTable.id, event.id))
.get()
.pipe(Effect.orDie)
if (stored)
yield* Effect.die(
new InvalidSyncEventError({
type: event.type,
message: `Event ${event.id} already exists at aggregate ${stored.aggregateID} sequence ${stored.seq}`,
}),
)
for (const guard of commitGuards) {
yield* guard(event)
}
for (const projector of list) {
yield* projector({ ...event, seq } as Payload)
}
const encoded = syncRegistry
.get(versionedType(definition.type, sync.version))!
.encode(event.data)
yield* db
.insert(EventSequenceTable)
.values([{ aggregate_id: aggregateID, seq, owner_id: input?.ownerID }])
@ -308,7 +350,7 @@ export const layerWith = (options?: LayerOptions) =>
aggregate_id: aggregateID,
seq,
type: versionedType(definition.type, sync.version),
data: encoded as Record<string, unknown>,
data: encoded,
},
])
.run()
@ -337,22 +379,43 @@ export const layerWith = (options?: LayerOptions) =>
return Effect.gen(function* () {
const durable = registry.get(event.type)?.sync !== undefined
if (durable) {
for (const sync of syncHandlers) {
yield* sync(event as Payload)
}
const committed = yield* commitSyncEvent(event as Payload)
if (committed) event = { ...event, seq: committed.seq }
if (committed) {
event = { ...event, seq: committed.seq }
yield* Effect.forEach(syncHandlers, (sync) => observe(event as Payload, "sync", sync), { discard: true })
yield* notify(event as Payload, true)
return event
}
}
for (const listener of listeners) {
yield* listener(event as Payload)
}
const pubsub = typed.get(event.type)
if (pubsub) yield* PubSub.publish(pubsub, event as Payload)
yield* PubSub.publish(all, event as Payload)
yield* notify(event as Payload, false)
return event
})
}
const observe = (event: Payload, kind: "sync" | "listener", observer: (event: Payload) => Effect.Effect<void>) =>
Effect.suspend(() => observer(event)).pipe(
Effect.catchCauseIf(
(cause) => !Cause.hasInterrupts(cause),
(cause) =>
Effect.logError("Event observer failed").pipe(
Effect.annotateLogs({ eventID: event.id, eventType: event.type, kind, cause }),
),
),
)
function notify(event: Payload, isolateListeners: boolean) {
return Effect.gen(function* () {
yield* Effect.forEach(
listeners,
(listener) => (isolateListeners ? observe(event, "listener", listener) : listener(event)),
{ discard: true },
)
const pubsub = typed.get(event.type)
if (pubsub) yield* PubSub.publish(pubsub, event)
yield* PubSub.publish(all, event)
})
}
function publish<D extends Definition>(definition: D, data: Data<D>, options?: PublishOptions) {
return Effect.gen(function* () {
const serviceLocation = Option.getOrUndefined(yield* Effect.serviceOption(Location.Service))
@ -396,13 +459,7 @@ export const layerWith = (options?: LayerOptions) =>
strictOwner: options?.strictOwner,
})
if (committed && options?.publish) {
const published = { ...payload, seq: committed.seq }
for (const listener of listeners) {
yield* listener(published)
}
const pubsub = typed.get(payload.type)
if (pubsub) yield* PubSub.publish(pubsub, published)
yield* PubSub.publish(all, published)
yield* notify({ ...payload, seq: committed.seq }, true)
}
}
})