refactor(schema): extract public event definitions (#33579)

packages/schema/src/permission.ts

@@ -1,6 +1,54 @@
 export * as Permission from "./permission"
 
 import { Schema } from "effect"
+import { define, inventory } from "./event"
+import { ascending } from "./identifier"
+import { SessionID } from "./session-id"
+import { withStatics } from "./schema"
+
+export const ID = Schema.String.check(Schema.isStartsWith("per")).pipe(
+  Schema.brand("PermissionV2.ID"),
+  withStatics((schema) => ({ create: (id?: string) => schema.make(id ?? "per_" + ascending()) })),
+)
+export type ID = typeof ID.Type
+
+export const Source = Schema.Union([
+  Schema.Struct({
+    type: Schema.Literal("tool"),
+    messageID: Schema.String,
+    callID: Schema.String,
+  }),
+]).annotate({ identifier: "PermissionV2.Source" })
+export type Source = typeof Source.Type
+
+const RequestFields = {
+  sessionID: SessionID,
+  action: Schema.String,
+  resources: Schema.Array(Schema.String),
+  save: Schema.Array(Schema.String).pipe(Schema.optional),
+  metadata: Schema.Record(Schema.String, Schema.Unknown).pipe(Schema.optional),
+  source: Source.pipe(Schema.optional),
+}
+
+export const Request = Schema.Struct({
+  id: ID,
+  ...RequestFields,
+}).annotate({ identifier: "PermissionV2.Request" })
+export type Request = typeof Request.Type
+
+export const Reply = Schema.Literals(["once", "always", "reject"]).annotate({ identifier: "PermissionV2.Reply" })
+export type Reply = typeof Reply.Type
+
+const Asked = define({ type: "permission.v2.asked", schema: Request.fields })
+const Replied = define({
+  type: "permission.v2.replied",
+  schema: {
+    sessionID: SessionID,
+    requestID: ID,
+    reply: Reply,
+  },
+})
+export const Event = { Asked, Replied, Definitions: inventory(Asked, Replied) }
 
 export const Effect = Schema.Literals(["allow", "deny", "ask"]).annotate({ identifier: "PermissionV2.Effect" })
 export type Effect = typeof Effect.Type