import { expect, test } from "@playwright/test";
import fs from "node:fs";
import path from "node:path";

const root = path.resolve(import.meta.dirname, "../../..");
const expected = JSON.parse(fs.readFileSync(
  path.join(root, "tests/golden/M10-02/geometry-node-allowlist.json"),
  "utf8",
));
const blendBytes = fs.readFileSync(path.join(root, expected.fixture));

test("M10-02 blocks non-allowlisted Main nodes without replacing the preserved graph", async ({ page }) => {
  test.setTimeout(120_000);
  expect((await import("node:crypto")).createHash("sha256").update(blendBytes).digest("hex"))
    .toBe(expected.fixtureSha256);
  await page.goto("/");
  const result = await page.evaluate(async ({ bytes, expected }) => {
    const { WebEngineClient } = await import("/src/engine-client/WebEngineClient.ts");
    const source = bytes.buffer.slice(bytes.byteOffset, bytes.byteOffset + bytes.byteLength) as ArrayBuffer;
    const client = new WebEngineClient({ timeoutMs: 60_000 });
    await client.init();
    const opened = await client.openBlend(source);
    const supported = opened.snapshot.geometryNodeGraphs?.find((graph) => graph.name === expected.supportedGraph);
    const unsupported = opened.snapshot.geometryNodeGraphs?.find((graph) => graph.name === expected.unsupportedGraph);
    const meshId = opened.snapshot.meshes[0]?.id ?? "mesh:missing";
    if (!supported || !unsupported) throw new Error("Geometry Node allowlist fixture graphs are missing");
    const baseline = JSON.stringify(opened.snapshot.geometryNodeGraphs);
    const revision = opened.snapshot.revision;
    const unsupportedTypes = unsupported.nodes
      .filter((node) => !expected.allowlist.includes(node.type))
      .map((node) => node.type);
    const attempt = async (graph: typeof supported) => {
      try {
        await client.applyCommand({ type: "setGeometryNodeGraph", meshId, graph });
        return null;
      }
      catch (error) {
        return error as { code?: string; message?: string };
      }
    };
    const unsupportedError = await attempt(unsupported);
    const afterUnsupported = await client.snapshot();
    const supportedError = await attempt(supported);
    const afterSupported = await client.snapshot();
    client.terminate();
    return {
      unsupportedTypes,
      unsupportedErrorCode: unsupportedError?.code,
      supportedErrorCode: supportedError?.code,
      unsupportedPreserved: JSON.stringify(afterUnsupported.snapshot.geometryNodeGraphs) === baseline,
      supportedPreserved: JSON.stringify(afterSupported.snapshot.geometryNodeGraphs) === baseline,
      revisions: [revision, afterUnsupported.snapshot.revision, afterSupported.snapshot.revision],
      graphHashes: [unsupported.graphHash, afterUnsupported.snapshot.geometryNodeGraphs?.find((graph) => graph.name === expected.unsupportedGraph)?.graphHash],
    };
  }, { bytes: new Uint8Array(blendBytes), expected });

  expect(result).toEqual({
    unsupportedTypes: expected.unsupportedNodeTypes,
    unsupportedErrorCode: expected.unsupportedErrorCode,
    supportedErrorCode: expected.evaluatorUnavailableErrorCode,
    unsupportedPreserved: true,
    supportedPreserved: true,
    revisions: [result.revisions[0], result.revisions[0], result.revisions[0]],
    graphHashes: [result.graphHashes[0], result.graphHashes[0]],
  });
  expect(result.graphHashes[0]).toMatch(/^[0-9a-f]{64}$/);
});