// DoD scenario e2e_roundtrip_noop (SD-0002 §6.8, PUC-10): exporting then
// re-importing the unmodified file previews as all-unchanged with the import
// action disabled and the "Nothing to change" note.
import { expect, test } from "@playwright/test";
import { exportCatalog, gotoProducts, importGoodCsv, signUpWithStorefront } from "../helpers";

test("e2e_roundtrip_noop", async ({ page }) => {
  await signUpWithStorefront(page);
  await gotoProducts(page);
  await importGoodCsv(page);
  await gotoProducts(page);

  // Export the catalog, then re-import the unmodified file.
  const { path } = await exportCatalog(page, "All products");
  await page.getByRole("link", { name: "Import products" }).first().click();
  await expect(page.getByRole("heading", { name: "Import products" })).toBeVisible();
  await page.locator('input[type="file"]').setInputFiles(path);

  // Preview: everything unchanged, nothing to add/update (PUC-10).
  await expect(page.getByRole("button", { name: "2 unchanged" })).toBeVisible();
  await expect(page.getByRole("button", { name: "0 to add" })).toBeVisible();
  await expect(page.getByRole("button", { name: "0 to update" })).toBeVisible();

  // The import action is disabled, with the no-op note.
  const importBtn = page.getByRole("button", { name: /^Import 0 products$/ });
  await expect(importBtn).toBeDisabled();
  await expect(
    page.getByText("Nothing to change — your catalog already matches this file"),
  ).toBeVisible();
});