import { expect, test } from "@playwright/test";

test("M13-03F disposes Worker resources to zero and is idempotent", async ({ page }) => {
  await page.goto("/");
  const result = await page.evaluate(() => new Promise<Record<string, any>>((resolve, reject) => {
    const worker = new Worker("/src/workers/script-sandbox-dispose-test.worker.ts", { type: "module" });
    let ready: Record<string, any> | undefined;
    let first: Record<string, any> | undefined;
    let lateTimerMessages = 0;
    worker.onmessage = (event: MessageEvent<Record<string, any>>) => {
      if (event.data.type === "ready") { ready = event.data; worker.postMessage({ type: "dispose" }); return; }
      if (event.data.type === "late-timer") { lateTimerMessages += 1; return; }
      if (event.data.type === "disposed" && first === undefined) { first = event.data; worker.postMessage({ type: "dispose" }); return; }
      if (event.data.type === "disposed") {
        const second = event.data;
        worker.terminate();
        setTimeout(() => resolve({ ready, first, second, workerTerminated: true, lateTimerMessages }), 70);
      }
    };
    worker.onerror = (event) => { worker.terminate(); reject(new Error(event.message)); };
    worker.postMessage({ type: "init" });
  }));
  expect(result.ready.resources).toEqual({ messagePorts: 2, timers: 1, abortControllers: 1, transferableBuffers: 1, pendingRequests: 1, cacheReferences: 1 });
  expect(result.first.receipt).toMatchObject({ schemaVersion: 1, disposeCount: 1, idempotent: false, lateTimerMessages: 0 });
  expect(result.first.resources).toEqual({ messagePorts: 0, timers: 0, abortControllers: 0, transferableBuffers: 0, pendingRequests: 0, cacheReferences: 0 });
  expect(result.second.receipt).toMatchObject({ schemaVersion: 1, disposeCount: 2, idempotent: true, lateTimerMessages: 0 });
  expect(result.second.resources).toEqual({ messagePorts: 0, timers: 0, abortControllers: 0, transferableBuffers: 0, pendingRequests: 0, cacheReferences: 0 });
  expect(result.workerTerminated).toBe(true);
  expect(result.lateTimerMessages).toBe(0);
});