import { AxeBuilder } from "@axe-core/playwright";
import { expect, test } from "@playwright/test";

/**
 * Automated WCAG 2.2 AA accessibility audits across the theme's page types.
 *
 * Note: automated tools catch roughly 30-40% of WCAG issues, so this suite is a
 * floor, not a guarantee — it is paired with a manual checklist (see the
 * accessibility sub-issue under the testing epic).
 */
const PAGES: Record<string, string> = {
  homepage: "/",
  "section list": "/posts/",
  "single page": "/posts/hello/",
  "standalone page": "/about/",
  "taxonomy terms": "/tags/",
  "taxonomy term": "/tags/alpha/",
  "404": "/404.html",
};

const TAGS = ["wcag2a", "wcag2aa", "wcag21a", "wcag21aa", "wcag22aa"];

/**
 * Page types with a known, tracked WCAG AA contrast failure (Tachyons `gray`
 * #777 on summary cards and single-page bylines). Marked as expected failures
 * so the suite is green while the bug is open; when #1015 is fixed these will
 * start passing and Playwright will flag the stale annotation for removal.
 */
const KNOWN_FAILURES = new Set([
  "section list",
  "single page",
  "taxonomy terms",
  "taxonomy term",
]);

for (const [name, path] of Object.entries(PAGES)) {
  test(`${name} has no automatically detectable a11y violations`, async ({
    page,
  }) => {
    if (KNOWN_FAILURES.has(name)) {
      test.fail(true, "Known WCAG AA contrast issue, tracked in #1015");
    }
    await page.goto(path);
    const results = await new AxeBuilder({ page }).withTags(TAGS).analyze();
    expect(results.violations).toEqual([]);
  });
}