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

const materialBlend = path.resolve(import.meta.dirname, "../../../tests/files/web/attribute_scene.blend");
const exportableBlend = path.resolve(import.meta.dirname, "../../../tests/files/web/basic_scene.blend");
const image = path.resolve(import.meta.dirname, "../../../tests/files/web/media/sequencer-frame.png");

test("M7-01 records import, open, save, save-as and export success", async ({ page }) => {
  await page.goto("/");
  await expect(page.getByTestId("engine-status")).toContainText("ready, open a .blend file", { timeout: 20_000 });
  const app = page.locator(".blender-app");

  await page.getByTestId("blend-file-input").setInputFiles(exportableBlend);
  await expect(app).toHaveAttribute("data-user-action-open-status", "SUCCEEDED");
  await expect(app).toHaveAttribute("data-user-action-open-id", /^OPEN:\d+$/);

  const glbDownload = page.waitForEvent("download");
  await page.getByRole("button", { name: "导出 GLB" }).click();
  expect((await glbDownload).suggestedFilename()).toBe("blender-web.glb");
  await expect(app).toHaveAttribute("data-user-action-export-status", "SUCCEEDED");
  await expect(app).toHaveAttribute("data-user-action-export-id", /^EXPORT:\d+$/);

  await page.getByTestId("blend-file-input").setInputFiles(materialBlend);
  await expect(app).toHaveAttribute("data-user-action-open-status", "SUCCEEDED");
  await page.locator("label.file-button input[type=file]").setInputFiles(image);
  await expect(app).toHaveAttribute("data-user-action-import-status", "SUCCEEDED");
  await expect(app).toHaveAttribute("data-user-action-import-id", /^IMPORT:\d+$/);

  const blendDownload = page.waitForEvent("download");
  await page.getByRole("button", { name: "保存项目" }).click();
  expect((await blendDownload).suggestedFilename()).toBe("blender-web.blend");
  await expect(app).toHaveAttribute("data-user-action-save-status", "SUCCEEDED");
  await expect(app).toHaveAttribute("data-user-action-save-as-status", "SUCCEEDED");
  await expect(app).toHaveAttribute("data-user-action-save-id", /^SAVE:\d+$/);
  await expect(app).toHaveAttribute("data-user-action-save-as-id", /^SAVE_AS:\d+$/);
  await expect(app).toHaveAttribute("data-save-transaction-status", "SUCCEEDED");
  await expect(app).toHaveAttribute("data-save-transaction-stage", "METADATA_COMMIT");
  await expect(app).toHaveAttribute("data-save-committed-hash", /^[a-f0-9]{64}$/);

});

test("M7-01 exposes stable failure codes without replacing the last valid scene", async ({ page }) => {
  await page.goto("/");
  await expect(page.getByTestId("engine-status")).toContainText("ready, open a .blend file", { timeout: 20_000 });
  const app = page.locator(".blender-app");

  await page.getByRole("button", { name: "导出 GLB" }).click();
  await expect(app).toHaveAttribute("data-user-action-export-status", "FAILED");
  await expect(app).toHaveAttribute("data-user-action-export-error", "EXPORT_PROJECT_UNAVAILABLE");

  await page.getByTestId("blend-file-input").setInputFiles(materialBlend);
  await expect(page.getByText("AttributeMeshObject", { exact: true })).toBeVisible();
  await page.getByTestId("blend-file-input").setInputFiles({
    name: "invalid.blend",
    mimeType: "application/octet-stream",
    buffer: Buffer.from([0x42, 0x41, 0x44]),
  });
  await expect(app).toHaveAttribute("data-user-action-open-status", "FAILED");
  await expect(app).toHaveAttribute("data-user-action-open-error", "OPEN_ENGINE_FAILED");
  await expect(page.getByText("AttributeMeshObject", { exact: true })).toBeVisible();

  await page.locator("label.file-button input[type=file]").setInputFiles({
    name: "invalid.png",
    mimeType: "image/png",
    buffer: Buffer.from("not-a-png"),
  });
  await expect(app).toHaveAttribute("data-user-action-import-status", "FAILED");
  await expect(app).toHaveAttribute("data-user-action-import-error", "IMPORT_DECODE_FAILED");
});