import { expect, test, type Page } from '@playwright/test';
import { SITE_CONTENT_DATA } from '../src/app/core/content/site-content';
import { prerenderablePaths } from '../src/app/core/routing/route-paths';
import { expectHead, jsonLdGraph, pagePath } from './helpers';

async function ensurePrimaryNavOpen(page: Page): Promise<void> {
  const toggle = page.locator('.nav-toggle');
  if ((await toggle.isVisible()) && (await toggle.getAttribute('aria-expanded')) === 'false') {
    await toggle.click();
    await expect(toggle).toHaveAttribute('aria-expanded', 'true');
  }
}

test.describe('server-rendered metadata', () => {
  test('German and English Home include the full head contract', async ({ request, page }) => {
    await expectHead(request, 'home', 'de');
    await expectHead(request, 'home', 'en');

    await page.goto('/');
    const graph = (await jsonLdGraph(page)) as { '@graph': Array<{ '@type': string }> };
    const types = graph['@graph'].map((node) => node['@type']);
    expect(types).toContain('Person');
    expect(types).toContain('ProfessionalService');

    await page.goto('/en');
    const english = (await jsonLdGraph(page)) as { '@graph': Array<{ '@type': string }> };
    expect(english['@graph'].map((node) => node['@type'])).toEqual(
      expect.arrayContaining(['Person', 'ProfessionalService']),
    );
  });

  test('projects, services, contact, legal and 404 keep locale metadata', async ({ request }) => {
    for (const locale of ['de', 'en'] as const) {
      await expectHead(request, 'projects', locale);
      await expectHead(request, 'services', locale);
      await expectHead(request, 'contact', locale);
      await expectHead(request, 'imprint', locale);
      await expectHead(request, 'notFound', locale);
    }
  });

  test('pitch has full head metadata and stays out of the primary nav', async ({
    request,
    page,
  }) => {
    await expectHead(request, 'pitch', 'de');
    await expectHead(request, 'pitch', 'en');

    const sitemap = await request.get('/sitemap.xml');
    const xml = await sitemap.text();
    expect(xml).toContain('https://antoniolede.de/pitch');
    expect(xml).toContain('https://antoniolede.de/en/pitch');

    await page.goto('/');
    await ensurePrimaryNavOpen(page);
    const nav = page.locator('.primary-nav');
    await expect(nav.locator(`a[href="${pagePath('pitch', 'de')}"]`)).toHaveCount(0);
    await expect(nav.locator(`a[href="${pagePath('home', 'de')}"]`)).toHaveCount(1);
  });

  test('every prerenderable path returns 200', async ({ request }) => {
    const paths = prerenderablePaths();
    expect(paths).toHaveLength(18);
    for (const path of paths) {
      const response = await request.get(path);
      expect(response.status(), path).toBe(200);
    }
  });

  test('unmatched URLs return 404 and a real route stays 200', async ({ request }) => {
    const home = await request.get('/');
    expect(home.status(), 'GET /').toBe(200);

    await expectHead(request, 'notFound', 'de');
    await expectHead(request, 'notFound', 'en');
  });

  test('client navigation does not duplicate head tags', async ({ page }) => {
    await page.goto('/');
    await ensurePrimaryNavOpen(page);
    await page.locator('.language-switch').first().waitFor();

    const assertUnique = async (canonical: string, description: string) => {
      await expect(page.locator('link[rel="canonical"]')).toHaveCount(1);
      await expect(page.locator('link[rel="alternate"][hreflang="de-DE"]')).toHaveCount(1);
      await expect(page.locator('link[rel="alternate"][hreflang="en"]')).toHaveCount(1);
      await expect(page.locator('link[rel="alternate"][hreflang="x-default"]')).toHaveCount(1);
      await expect(page.locator('meta[name="description"]')).toHaveCount(1);
      await expect(page.locator('meta[name="robots"]')).toHaveCount(1);
      await expect(page.locator('script[type="application/ld+json"]')).toHaveCount(1);
      await expect(page.locator('link[rel="canonical"]')).toHaveAttribute('href', canonical);
      await expect(page.locator('meta[name="description"]')).toHaveAttribute(
        'content',
        description,
      );
    };

    await ensurePrimaryNavOpen(page);
    await page
      .locator(`a[href="${pagePath('projects', 'de')}"]`)
      .first()
      .click();
    await page.waitForURL('**/projekte');
    await assertUnique(
      'https://antoniolede.de/projekte',
      SITE_CONTENT_DATA.de.pages.projects.description,
    );

    await ensurePrimaryNavOpen(page);
    await page.locator(`.primary-nav a[href="${pagePath('services', 'de')}"]`).click();
    await page.waitForURL('**/leistungen');
    await expect(page.locator('link[rel="canonical"]')).toHaveCount(1);
    await expect(page.locator('link[rel="canonical"]')).toHaveAttribute(
      'href',
      'https://antoniolede.de/leistungen',
    );
    await expect(page.locator('script[type="application/ld+json"]')).toHaveCount(1);
  });

  test('legacy service URLs return HTTP 308 with the fragment Location', async ({ request }) => {
    const redirects = [
      ['/leistungen/software', '/leistungen#software-data'],
      ['/leistungen/software/', '/leistungen#software-data'],
      ['/leistungen/hardware-netzwerk', '/leistungen#infrastructure-network'],
      ['/leistungen/cluster', '/leistungen#platform-operations'],
      ['/leistungen/ai-integration', '/leistungen#ai-workflows'],
      ['/en/services/software', '/en/services#software-data'],
      ['/en/services/hardware-network', '/en/services#infrastructure-network'],
      ['/en/services/clusters', '/en/services#platform-operations'],
      ['/en/services/ai-integration', '/en/services#ai-workflows'],
      ['/en/services/ai-integration/', '/en/services#ai-workflows'],
    ] as const;

    for (const [from, to] of redirects) {
      const response = await request.get(from, { maxRedirects: 0 });
      expect(response.status(), from).toBe(308);
      expect(response.headers().location, from).toBe(to);
    }
  });
});