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

const root = path.resolve(import.meta.dirname, "../../..");
const fixture = fs.readFileSync(path.join(root, "tests/files/web/generated/M16-GAP-00025-datablock-Texture.blend"));
const fixtureSha256 = crypto.createHash("sha256").update(fixture).digest("hex");

test("WBV2-P1139-001 preserves Texture properties through Main recovery and reopen", async ({ page }) => {
  test.setTimeout(120_000);
  await page.goto("/");
  const result = await page.evaluate(async (input) => {
    const { WebEngineClient } = await import("/src/engine-client/WebEngineClient.ts");
    const client = new WebEngineClient({ timeoutMs: 60_000 });
    const reopenedClient = new WebEngineClient({ timeoutMs: 60_000 });
    const summary = (snapshot: any, dataId: string) => {
      const texture = snapshot.textures?.find((entry: any) => entry.id === dataId);
      if (!texture) throw new Error(`texture missing: ${dataId}`);
      return { revision: snapshot.revision, noiseScale: texture.noiseScale, noiseDepth: texture.noiseDepth, intensity: texture.intensity, contrast: texture.contrast, saturation: texture.saturation };
    };
    try {
      const opened = await client.openBlend(Uint8Array.from(input.bytes).buffer);
      const jsonSnapshot = await client.callJson<any>("snapshot");
      const jsonDelta = await client.callJson<any>("delta");
      const jsonDepsgraph = await client.callJson<any>("depsgraph");
      const jsonMemoryStats = await client.callJson<any>("memoryStats");
      const texture = opened.snapshot.textures?.find((entry: any) => entry.id === "texture:WebGapTexture");
      if (!texture) throw new Error("fixture has no Texture datablock");
      const dataId = texture.id as string;
      const before = summary(opened.snapshot, dataId);
      const edited = await client.applyCommand({ type: "setTextureProperties", dataId, properties: { noiseScale: before.noiseScale + 0.2, noiseDepth: before.noiseDepth + 1, intensity: before.intensity + 0.1, contrast: before.contrast + 0.1, saturation: before.saturation + 0.1 } } as any);
      const afterEdit = summary(edited.snapshot, dataId);
      const undo = await client.applyCommand({ type: "undo" } as any);
      const afterUndo = summary(undo.snapshot, dataId);
      const redo = await client.applyCommand({ type: "redo" } as any);
      const afterRedo = summary(redo.snapshot, dataId);
      const malformed = await client.applyCommand({ type: "setTextureProperties", dataId, properties: { noiseDepth: 31 } } as any).then(() => ({ code: "NO_ERROR" })).catch((error: any) => ({ code: error?.code, message: error?.message }));
      const afterMalformed = summary((await client.snapshot()).snapshot, dataId);
      const saved = await client.saveBlend();
      const reopened = await reopenedClient.openBlend(saved.slice(0));
      const afterReopen = summary(reopened.snapshot, dataId);
      return { fixtureSha256: input.fixtureSha256, dataId, jsonAbi: { snapshotRevision: jsonSnapshot.result.revision, deltaSchemaVersion: jsonDelta.result.schemaVersion, depsgraphEngine: jsonDepsgraph.result.engine, depsgraphStatus: jsonDepsgraph.result.status, memoryStats: jsonMemoryStats.result }, before, afterEdit, afterUndo, afterRedo, malformed, afterMalformed, afterReopen, savedSha256: await crypto.subtle.digest("SHA-256", saved).then((bytes) => Array.from(new Uint8Array(bytes), (byte) => byte.toString(16).padStart(2, "0")).join("")) };
    }
    catch (error: any) { return { error: { code: error?.code, message: error?.message, detail: String(error) } } as any; }
    finally { client.terminate(); reopenedClient.terminate(); }
  }, { bytes: Array.from(fixture), fixtureSha256 });
  fs.mkdirSync(path.join(root, "tests/golden/WBV2-P1139-001"), { recursive: true });
  fs.writeFileSync(path.join(root, "tests/golden/WBV2-P1139-001/texture-properties-production.json"), `${JSON.stringify({ schemaVersion: 1, task: "WBV2-P1139-001", operation: "TEXTURE_PROPERTIES_MAIN_CHROMIUM", browser: "chromium", queueMutation: false, ...result }, null, 2)}\n`);
  expect(result.error).toBeUndefined();
  expect(result.fixtureSha256).toBe(fixtureSha256);
  expect(result.jsonAbi.snapshotRevision).toBe(result.before.revision);
  expect(result.jsonAbi.deltaSchemaVersion).toBe(1);
  expect(result.jsonAbi.depsgraphEngine).toBe("BlenderDepsgraph");
  expect(result.jsonAbi.depsgraphStatus).toBe("EVALUATED");
  expect(result.jsonAbi.memoryStats.liveHandles).toBeGreaterThan(0);
  expect(result.afterEdit.revision).toBe(result.before.revision + 1);
  expect(result.afterEdit.noiseScale).not.toBe(result.before.noiseScale);
  const stateOnly = ({ revision: _revision, ...state }: any) => state;
  expect(stateOnly(result.afterUndo)).toEqual(stateOnly(result.before));
  expect(stateOnly(result.afterRedo)).toEqual(stateOnly(result.afterEdit));
  expect(result.malformed.code).not.toBe("NO_ERROR");
  expect(stateOnly(result.afterMalformed)).toEqual(stateOnly(result.afterRedo));
  expect(stateOnly(result.afterReopen)).toEqual(stateOnly(result.afterRedo));
  expect(result.afterReopen.revision).toBe(1);
  expect(result.savedSha256).not.toBe(fixtureSha256);
});