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

const root = path.resolve(import.meta.dirname, "../../..");
const fixture = path.join(root, "blender-5.2.0/tests/files/sequence_editing/effects/fx_comp.blend");

test("reset changes semantics or only bytes", async ({ page }) => {
  test.setTimeout(300_000);
  await observeNative(page);
  const probe = async (warm: boolean) => {
    await page.goto("/");
    await page.getByTestId("blend-file-input").setInputFiles(fixture);
    await expect.poll(async () => page.locator("main.blender-app").evaluate((n) => (n as HTMLElement).dataset.projectId), { timeout: 60000 }).toBe("fx_comp");
    await expect(page.getByTestId("engine-status")).toContainText("SceneIR", { timeout: 60000 });
    return page.evaluate(async (warmReset) => {
      const worker = (window as any).__nativeWorkflowEngine as Worker;
      const send = (command: any) => new Promise<any>((resolve, reject) => {
        const requestId = `sem6-${crypto.randomUUID()}`;
        const receive = (event: MessageEvent) => {
          if (event.data?.requestId !== requestId || event.data?.kind !== 'result') return;
          worker.removeEventListener('message', receive);
          if (event.data.ok) resolve(event.data.result); else reject(Object.assign(new Error(`${event.data.error?.code}: ${event.data.error?.message}`), { detail: event.data.error }));
        };
        worker.addEventListener('message', receive); worker.postMessage({ requestId, command });
      });
      const hex = (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 digestJson = (value: unknown) => crypto.subtle.digest('SHA-256', new TextEncoder().encode(JSON.stringify(value))).then((h) => Array.from(new Uint8Array(h), (b) => b.toString(16).padStart(2, '0')).join('').slice(0, 16));
      const state = async () => {
        const s = (await send({ type: 'snapshot' })).snapshot as Record<string, unknown>;
        const { revision, ...rest } = s;
        return { revision, semantics: await digestJson(rest), bytes: await hex((await send({ type: 'saveBlend' })).blend as ArrayBuffer) };
      };
      const brief = (r: any) => r?.status ?? r?.json?.state ?? 'ok';
      const log: any = {};
      if (warmReset) log.warmReset = await send({ type: 'jsonCommand', cmd: 'pythonReset', params: {} }).then(brief, (e: Error) => String(e.message));
      log.beforeExec = await state();
      log.exec = await send({ type: 'jsonCommand', cmd: 'pythonExec', params: { source: 'import bpy\nbpy.context.scene.name = bpy.context.scene.name\n', filename: 'Probe.py', console: false } }).then(brief, (e: Error) => String(e.message));
      log.afterExec = await state();
      log.reset1 = await send({ type: 'jsonCommand', cmd: 'pythonReset', params: {} }).then(brief, (e: Error) => String(e.message));
      log.afterReset1 = await state();
      log.undo = await send({ type: 'applyCommand', payload: { type: 'undo' } }).then(brief, (e: Error) => String(e.message));
      log.afterUndo = await state().catch((e: Error) => String(e.message));
      return log;
    }, warm);
  };
  const cold = await probe(false);
  const warm = await probe(true);
  fs.writeFileSync("/tmp/reset-semantic6.json", JSON.stringify({ cold, warm }, null, 2));
});