Add native LLM core foundation (#24712)

packages/http-recorder/src/schema.ts

@@ -0,0 +1,67 @@
+import { Schema } from "effect"
+
+export const RequestSnapshotSchema = Schema.Struct({
+  method: Schema.String,
+  url: Schema.String,
+  headers: Schema.Record(Schema.String, Schema.String),
+  body: Schema.String,
+})
+export type RequestSnapshot = Schema.Schema.Type<typeof RequestSnapshotSchema>
+
+export const ResponseSnapshotSchema = Schema.Struct({
+  status: Schema.Number,
+  headers: Schema.Record(Schema.String, Schema.String),
+  body: Schema.String,
+  bodyEncoding: Schema.optional(Schema.Literals(["text", "base64"])),
+})
+export type ResponseSnapshot = Schema.Schema.Type<typeof ResponseSnapshotSchema>
+
+export const CassetteMetadataSchema = Schema.Record(Schema.String, Schema.Unknown)
+export type CassetteMetadata = Schema.Schema.Type<typeof CassetteMetadataSchema>
+
+export const HttpInteractionSchema = Schema.Struct({
+  transport: Schema.tag("http"),
+  request: RequestSnapshotSchema,
+  response: ResponseSnapshotSchema,
+})
+export type HttpInteraction = Schema.Schema.Type<typeof HttpInteractionSchema>
+
+export const WebSocketFrameSchema = Schema.Union([
+  Schema.Struct({ kind: Schema.tag("text"), body: Schema.String }),
+  Schema.Struct({ kind: Schema.tag("binary"), body: Schema.String, bodyEncoding: Schema.Literal("base64") }),
+])
+export type WebSocketFrame = Schema.Schema.Type<typeof WebSocketFrameSchema>
+
+export const WebSocketInteractionSchema = Schema.Struct({
+  transport: Schema.tag("websocket"),
+  open: Schema.Struct({
+    url: Schema.String,
+    headers: Schema.Record(Schema.String, Schema.String),
+  }),
+  client: Schema.Array(WebSocketFrameSchema),
+  server: Schema.Array(WebSocketFrameSchema),
+})
+export type WebSocketInteraction = Schema.Schema.Type<typeof WebSocketInteractionSchema>
+
+export const InteractionSchema = Schema.Union([HttpInteractionSchema, WebSocketInteractionSchema]).pipe(
+  Schema.toTaggedUnion("transport"),
+)
+export type Interaction = Schema.Schema.Type<typeof InteractionSchema>
+
+export const isHttpInteraction = InteractionSchema.guards.http
+
+export const isWebSocketInteraction = InteractionSchema.guards.websocket
+
+export const httpInteractions = (cassette: Cassette) => cassette.interactions.filter(isHttpInteraction)
+
+export const webSocketInteractions = (cassette: Cassette) => cassette.interactions.filter(isWebSocketInteraction)
+
+export const CassetteSchema = Schema.Struct({
+  version: Schema.Literal(1),
+  metadata: Schema.optional(CassetteMetadataSchema),
+  interactions: Schema.Array(InteractionSchema),
+})
+export type Cassette = Schema.Schema.Type<typeof CassetteSchema>
+
+export const decodeCassette = Schema.decodeUnknownSync(CassetteSchema)
+export const encodeCassette = Schema.encodeSync(CassetteSchema)