import fs from "node:fs";
import path from "node:path";
import { test, expect } from "@playwright/test";
import { NativeUIWorkflow, observeNative } from "../fixtures/native-ui-workflow";

const root = path.resolve(import.meta.dirname, "../../..");
const cases: Array<[string, string, string]> = [
  ["blender-5.2.0/tests/files/sequence_editing/effects/fx_comp.blend", "fx_comp", "missing-unpacked-image"],
  ["tests/files/web/corrupt_packed_image.blend", "corrupt_packed_image", "packed-image"],
  ["tests/files/web/basic_scene.blend", "basic_scene", "no-file-image"],
];

test("probe byte stability across explicit pythonReset", async ({ page }, testInfo) => {
  test.setTimeout(240_000);
  await observeNative(page);
  await page.goto("/");
  const results: Record<string, unknown> = {};
  for (const [rel, project, tag] of cases) {
    await page.getByTestId("blend-file-input").setInputFiles(path.join(root, rel));
    await expect.poll(async () => page.locator("main.blender-app").evaluate((n) => (n as HTMLElement).dataset.projectId), { timeout: 60000 }).toBe(project);
    await expect(page.getByTestId("engine-status")).toContainText("SceneIR", { timeout: 60000 });
    const out = await page.evaluate(async () => {
      const worker = (window as any).__nativeWorkflowEngine as Worker;
      const send = (command: any) => new Promise<any>((resolve, reject) => {
        const requestId = `rb-${crypto.randomUUID()}`;
        const receive = (event: MessageEvent) => {
          if (event.data?.requestId !== requestId || event.data?.kind !== 'result') return;
          worker.removeEventListener('message', receive);
          if (event.data.ok) resolve(event.data.result); else reject(new Error(`${event.data.error?.code}: ${event.data.error?.message}`));
        };
        worker.addEventListener('message', receive); worker.postMessage({ requestId, command });
      });
      const py = (source: string) => send({ type: 'jsonCommand', cmd: 'pythonExec', params: { source, filename: 'Rb.py', console: false } });
      const digest = (buf: ArrayBuffer) => crypto.subtle.digest('SHA-256', buf).then((h) => Array.from(new Uint8Array(h), (b) => b.toString(16).padStart(2, '0')).join('').slice(0, 16));
      const log: any = {};
      await py("import bpy\nbpy.context.scene['probe_marker']='m1'");
      log.a = await digest((await send({ type: 'saveBlend' })).blend as ArrayBuffer);
      try { await send({ type: 'jsonCommand', cmd: 'pythonReset', params: {} }); log.reset = 'ok'; }
      catch (e: any) { log.reset = String(e?.message ?? e).slice(0, 100); }
      log.b = await digest((await send({ type: 'saveBlend' })).blend as ArrayBuffer);
      log.stable = log.a === log.b;
      return log;
    });
    results[tag] = out;
  }
  fs.writeFileSync("/tmp/reset-bytes.json", JSON.stringify(results, null, 2));
});