/**
 * Structured-clone message protocol between the main thread (SandboxRunner)
 * and the sandbox Web Worker. Keep this file dependency-free — it is shared
 * by both bundles and by the Node test harness.
 */
import type { Bar, CompileMeta } from "../engine/types";

export type ToWorker =
  | { type: "compile"; reqId: number; source: string }
  | { type: "run"; reqId: number; bars: Bar[]; inputs: Record<string, unknown> }
  | { type: "runIncremental"; reqId: number; bars: Bar[]; inputs: Record<string, unknown> };

export type FromWorker =
  | { type: "compiled"; reqId: number; meta: CompileMeta; capabilities: { incremental: boolean } }
  | { type: "compileError"; reqId: number; line?: number; message: string }
  | { type: "result"; reqId: number; plots: Record<string, number[]>; alerts: Record<string, number[]>; warnings: string[] }
  | { type: "runError"; reqId: number; message: string };