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

// The downloads page has to be correct in BOTH states — with a snapshot
// attached and without — because the tarball is a gitignored build artefact
// that a fresh checkout does not have. The rule it must never break: no link
// to a file that isn't there.

test("says plainly that this is a snapshot, not a repository", async ({
  page,
}) => {
  await page.goto("/downloads/");
  await expect(page.getByRole("heading", { level: 1 })).toContainText(
    "Downloads",
  );
  await expect(
    page.getByText(/this is a snapshot, not a repository/i),
  ).toBeVisible();
  await expect(page.getByText(/nothing to/i)).toBeVisible();
});

test("the download link and its facts agree, or there is no link at all", async ({
  page,
}) => {
  await page.goto("/downloads/");
  const link = page.getByRole("link", { name: /archilyzer-source\.tar\.gz/i });

  if ((await link.count()) === 0) {
    // No snapshot in this build: explain, don't link.
    await expect(
      page.getByText(/no source snapshot attached/i),
    ).toBeVisible();
    return;
  }

  const href = await link.getAttribute("href");
  expect(href).toBe("/downloads/archilyzer-source.tar.gz");

  // The advertised file must actually be served. A stale sidecar beside a
  // missing tarball is the exact failure the loader is written to prevent.
  const res = await page.request.get(href!);
  expect(res.status()).toBe(200);

  // The sidecar's facts are rendered, not hardcoded: a checksum and a commit.
  await expect(page.getByText("SHA-256")).toBeVisible();
  const sha = await page
    .locator("text=/^[0-9a-f]{64}$/")
    .first()
    .textContent();
  expect(sha?.trim()).toMatch(/^[0-9a-f]{64}$/);
});

test("names what the tarball does not contain", async ({ page }) => {
  await page.goto("/downloads/");
  await expect(page.getByText(/The archive itself/)).toBeVisible();
  await expect(page.getByText(/Any operator’s configuration/)).toBeVisible();
  await expect(page.getByRole("heading", { name: "License" })).toBeVisible();
});