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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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34
packages/core/src/session.ts
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@ -1,7 +1,7 @@
export * as SessionV2 from "./session"
export * from "./session/schema"
import { Cause, DateTime, Effect, Layer, Schema, Context, Stream } from "effect"
import { Cause, Effect, Layer, Schema, Context, Stream } from "effect"
import { and, asc, desc, eq, gt, like, lt, or, type SQL } from "drizzle-orm"
import { ProjectV2 } from "./project"
import { WorkspaceV2 } from "./workspace"
@ -10,7 +10,6 @@ import { Location } from "./location"
import { SessionMessage } from "./session/message"
import { Prompt } from "./session/prompt"
import { EventV2 } from "./event"
import { ProviderV2 } from "./provider"
import { Database } from "./database/database"
import { SessionProjector } from "./session/projector"
import { SessionMessageTable, SessionTable } from "./session/sql"
@ -140,7 +139,7 @@ export interface Interface {
prompt: Prompt
delivery?: SessionInput.Delivery
resume?: boolean
}) => Effect.Effect<SessionMessage.User, NotFoundError | PromptConflictError>
}) => Effect.Effect<SessionInput.Admitted, NotFoundError | PromptConflictError>
readonly shell: (input: {
id?: EventV2.ID
sessionID: SessionSchema.ID
@ -198,20 +197,6 @@ export const layer = Layer.effect(
),
)
const findExistingPrompt = Effect.fnUntraced(function* (input: {
sessionID: SessionSchema.ID
messageID: SessionMessage.ID
prompt: Prompt
delivery: SessionInput.Delivery
}) {
const stored = yield* SessionInput.find(db, input.messageID)
if (!stored) return yield* SessionInput.reconcileProjected(db, { id: input.messageID, ...input })
if (!SessionInput.equivalent(stored, input)) {
return yield* new PromptConflictError({ sessionID: input.sessionID, messageID: input.messageID })
}
return stored
})
const result = Service.of({
create: Effect.fn("V2Session.create")(function* (input) {
const sessionID = input.id ?? SessionSchema.ID.create()
@ -367,20 +352,23 @@ export const layer = Layer.effect(
yield* result.get(input.sessionID)
const returnPrompt = Effect.fnUntraced(function* (admitted: SessionInput.Admitted) {
if (input.resume !== false) yield* enqueueWake(input.sessionID)
return SessionInput.toMessage(admitted)
return admitted
}, Effect.uninterruptible)
const messageID = input.id ?? SessionMessage.ID.create()
const delivery = input.delivery ?? "steer"
const expected = { sessionID: input.sessionID, messageID, prompt: input.prompt, delivery }
const existing = yield* findExistingPrompt(expected)
if (existing) return yield* returnPrompt(existing)
const admitted = yield* SessionInput.admit(db, {
const admitted = yield* SessionInput.admit(db, events, {
id: messageID,
sessionID: input.sessionID,
prompt: input.prompt,
delivery,
})
if (!admitted) return yield* new PromptConflictError({ sessionID: input.sessionID, messageID })
}).pipe(
Effect.catchDefect((defect) =>
defect instanceof SessionInput.LifecycleConflict
? new PromptConflictError({ sessionID: input.sessionID, messageID })
: Effect.die(defect),
),
)
if (!SessionInput.equivalent(admitted, expected))
return yield* new PromptConflictError({ sessionID: input.sessionID, messageID })
return yield* returnPrompt(admitted)