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, "../../..");

test("which cleanup construction actually mutates Main during reset", async ({ page }) => {
  test.setTimeout(300_000);
  await observeNative(page);
  await page.goto("/");
  await page.getByTestId("blend-file-input").setInputFiles(path.join(root, "blender-5.2.0/tests/files/sequence_editing/effects/fx_comp.blend"));
  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 });
  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 = `cl-${crypto.randomUUID()}`;
      const receive = (event: MessageEvent) => {
        if (event.data?.requestId !== requestId || event.data?.kind !== 'result') return;
        worker.removeEventListener('message', receive);
        if (event.data.ok) resolve(event.data.result); else reject(Object.assign(new Error(`${event.data.error?.code}: ${event.data.error?.message}`), { detail: event.data.error }));
      };
      worker.addEventListener('message', receive); worker.postMessage({ requestId, command });
    });
    const sceneNames = async () => send({ type: 'snapshot' }).then((r: any) => (r?.snapshot?.scenes ?? []).map((s: any) => s.name), () => 'n/a');
    const run = async (label: string, source: string) => {
      const exec = await send({ type: 'jsonCommand', cmd: 'pythonExec', params: { source, filename: `${label}.py`, console: false } })
        .then((r: any) => ({ state: r?.json?.state, output: String(r?.json?.output ?? '').slice(-300) }), (e: Error) => ({ error: e.message }));
      const reset = await send({ type: 'jsonCommand', cmd: 'pythonReset', params: {} })
        .then((r: any) => JSON.stringify(r?.json ?? r).slice(0, 200), (e: Error) => `ERR ${e.message}`);
      const names = await sceneNames();
      return { label, exec, reset, names };
    };
    const results = [];
    results.push(await run('driver_del', [
      'import bpy',
      'class CleanupEdit:',
      '    def __del__(self):',
      '        print("FINALIZER_RAN")',
      '        try:',
      '            bpy.context.scene.name = "CleanupEditScene"',
      '        except Exception as exc:',
      '            print("FINALIZER_EDIT_FAILED", repr(exc))',
      "bpy.app.driver_namespace['_cleanup_edit'] = CleanupEdit()",
      'print("PLACED")',
      '',
    ].join('\n')));
    results.push(await run('rna_type_del', [
      'import bpy',
      'from bpy.props import IntProperty',
      'class CleanupType(bpy.types.Operator):',
      '    bl_idname = "probe.cleanup_type"',
      '    bl_label = "cleanup"',
      '    bl_options = {"REGISTER"}',
      '    value: IntProperty()',
      '    def execute(self, context):',
      '        return {"FINISHED"}',
      '    def __del__(self):',
      '        print("TYPE_FINALIZER_RAN")',
      '        try:',
      '            bpy.context.scene.name = "CleanupTypeScene"',
      '        except Exception as exc:',
      '            print("TYPE_EDIT_FAILED", repr(exc))',
      'if not hasattr(bpy.types, "CleanupType"):',
      '    bpy.utils.register_class(CleanupType)',
      "bpy.app.driver_namespace['_cleanup_type'] = CleanupType()",
      'print("TYPE_PLACED")',
      '',
    ].join('\n')));
    results.push(await run('handler_del', [
      'import bpy',
      'class CleanupHandler:',
      '    def __call__(self, scene, *args):',
      '        pass',
      '    def __del__(self):',
      '        print("HANDLER_FINALIZER_RAN")',
      '        try:',
      '            bpy.context.scene.name = "CleanupHandlerScene"',
      '        except Exception as exc:',
      '            print("HANDLER_EDIT_FAILED", repr(exc))',
      "bpy.app.handlers.depsgraph_update_post.append(CleanupHandler())",
      'print("HANDLER_PLACED")',
      '',
    ].join('\n')));
    return results;
  });
  fs.writeFileSync("/tmp/cleanup-construct.json", JSON.stringify(out, null, 2));
});