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

async function fetchVerifyLink(email: string): Promise<string> {
  for (let i = 0; i < 30; i++) {
    const res = await fetch('http://localhost:8025/api/v1/messages?limit=30');
    const data = await res.json() as { messages: { ID: string; To: { Address: string }[] }[] };
    const msg = data.messages.find((m) => m.To.some((t) => t.Address === email));
    if (msg) {
      const body = await (await fetch(`http://localhost:8025/api/v1/message/${msg.ID}`)).json() as { Text: string };
      const m = body.Text.match(/https?:\/\/[^\s]+verify-email\?token=[^\s]+/);
      if (m) return m[0];
    }
    await new Promise((r) => setTimeout(r, 250));
  }
  throw new Error('no verify link for ' + email);
}

async function registerVerifyLogin(page: import('@playwright/test').Page, name: string, email: string, password: string) {
  await page.goto('/register');
  await page.getByLabel(/Naam/).fill(name);
  await page.getByLabel(/E-mailadres/).fill(email);
  await page.getByLabel(/Wachtwoord/).fill(password);
  await page.getByRole('button', { name: /Account aanmaken/ }).click();
  await expect(page.getByText(/bevestigingsmail/i)).toBeVisible({ timeout: 10_000 });
  const link = await fetchVerifyLink(email);
  await page.goto(link);
  await expect(page.getByRole('link', { name: 'Naar inloggen' })).toBeVisible({ timeout: 10_000 });
  await page.goto('/login');
  await page.getByLabel(/E-mailadres/).fill(email);
  await page.getByLabel(/Wachtwoord/).fill(password);
  await page.getByRole('button', { name: 'Inloggen' }).click();
  await expect(page.getByRole('button', { name: 'Account menu' })).toBeVisible({ timeout: 15_000 });
}

test('search opens with ⌘K, finds a lesson, navigates to detail', async ({ page }) => {
  const email = `search+${Date.now()}@example.com`;
  await registerVerifyLogin(page, 'SearchUser', email, 'secretpass');
  await page.goto('/lessons');
  await page.getByPlaceholder(/Nieuwe wortel-les/).fill('Aardrijkskunde');
  await page.getByRole('button', { name: /Toevoegen/ }).first().click();
  await expect(page.getByRole('link', { name: /Aardrijkskunde/ }).first()).toBeVisible();

  await page.keyboard.press('Control+K');
  const searchInput = page.getByPlaceholder(/Zoek lessen en kaarten/);
  await expect(searchInput).toBeVisible();
  await searchInput.fill('aardrijk');
  // Scope to the palette result row so we wait for the debounced search result,
  // not the background lessons-tree link.
  const resultRow = page.getByRole('listitem').filter({ hasText: /door SearchUser/ }).first();
  await expect(resultRow).toBeVisible({ timeout: 5_000 });
  await resultRow.click();
  await expect(page).toHaveURL(/\/lessons\/\d+/);
  await expect(page.getByRole('heading', { name: /Aardrijkskunde/ })).toBeVisible();
});

test('lesson detail page shows start practice', async ({ page }) => {
  const email = `detail+${Date.now()}@example.com`;
  await registerVerifyLogin(page, 'DetailUser', email, 'secretpass');
  await page.goto('/lessons');
  await page.getByPlaceholder(/Nieuwe wortel-les/).fill('Wiskunde-test');
  await page.getByRole('button', { name: /Toevoegen/ }).first().click();
  await page.getByRole('link', { name: /Wiskunde-test/ }).first().click();
  await expect(page.getByRole('heading', { name: /Wiskunde-test/ })).toBeVisible();
  await expect(page.getByRole('link', { name: /Start oefenen/ })).toBeVisible();
});

test('stats page renders three sections', async ({ page }) => {
  const email = `stats+${Date.now()}@example.com`;
  await registerVerifyLogin(page, 'StatsUser', email, 'secretpass');
  await page.goto('/stats');
  await expect(page.getByRole('heading', { name: 'Statistieken' })).toBeVisible();
  await expect(page.getByText(/Te reviewen/)).toBeVisible();
  await expect(page.getByText(/Voortgang per les/)).toBeVisible();
  await expect(page.getByText(/Activiteit/)).toBeVisible();
});

test('legacy /admin redirects to /lessons', async ({ page }) => {
  const email = `legacy+${Date.now()}@example.com`;
  await registerVerifyLogin(page, 'Legacy', email, 'secretpass');
  await page.goto('/admin');
  await expect(page).toHaveURL(/\/lessons$/);
});

test('practice progress bar updates after answering a card', async ({ page }) => {
  const email = `progress+${Date.now()}@example.com`;
  await registerVerifyLogin(page, 'ProgressUser', email, 'secretpass');
  await page.goto('/lessons');
  await page.getByPlaceholder(/Nieuwe wortel-les/).fill('Progress-test');
  await page.getByRole('button', { name: /Toevoegen/ }).first().click();
  await page.getByRole('link', { name: /Progress-test/ }).first().click();
  // Add two cards so the session does not end on the first answer.
  await page.getByPlaceholder('Nieuwe vraag').fill('q1');
  await page.getByPlaceholder('Antwoord').fill('a1');
  await page.getByRole('button', { name: 'Kaart toevoegen' }).click();
  // Wait for the add to settle (draft clears) before adding the next card.
  await expect(page.getByPlaceholder('Nieuwe vraag')).toHaveValue('');
  await page.getByPlaceholder('Nieuwe vraag').fill('q2');
  await page.getByPlaceholder('Antwoord').fill('a2');
  await expect(page.getByRole('button', { name: 'Kaart toevoegen' })).toBeEnabled();
  await page.getByRole('button', { name: 'Kaart toevoegen' }).click();
  await expect(page.getByPlaceholder('Nieuwe vraag')).toHaveValue('');

  await page.getByRole('link', { name: /Start oefenen/ }).click();
  await page.getByRole('button', { name: /Start sessie/ }).click();

  // Before answering: 0 behandeld
  await expect(page.getByText('0 behandeld')).toBeVisible();
  await page.getByRole('button', { name: 'Toon antwoord' }).click();
  await page.getByRole('button', { name: /Goed/ }).click();

  // After answering: bar reflects 1 handled + 1 correct + 100% accuracy
  await expect(page.getByText('1 behandeld')).toBeVisible({ timeout: 5_000 });
  await expect(page.getByText('✓ 1')).toBeVisible();
  await expect(page.getByText('100% goed')).toBeVisible();
});