const test = require('node:test');
const assert = require('node:assert/strict');
const { setup, teardown, cleanup } = require('../helpers');

test('10.5 GET / → 200 HTML landing page', async () => {
  const base = await setup();
  try {
    const res = await fetch(base, {
      headers: { Accept: 'text/html' },
    });
    assert.equal(res.status, 200);
    const html = await res.text();
    assert.ok(html.includes('<!DOCTYPE html>'), 'should be valid HTML');
    assert.ok(html.includes('Emberfall'), 'should contain the game title');
    assert.ok(html.includes('Login'), 'should have a Login link');
    assert.ok(html.includes('Register'), 'should have a Register link');
  } finally {
    await teardown();
    cleanup();
  }
});

test('10.5 GET / logged-in with hero → shows Play button', async () => {
  const base = await setup();
  const jar = { cookies: [] };

  function jarSet(res) {
    const cookies = res.headers['set-cookie'];
    if (cookies && cookies.length) {
      jar.cookies = cookies.map((c) => c.split(';')[0]);
    }
  }

  function jarGet() {
    return jar.cookies.join('; ');
  }

  try {
    // Register
    const regRes = await fetch(base + '/api/auth/register', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ username: 'landinguser', password: 'password123' }),
    });
    assert.equal(regRes.status, 201);
    jarSet(regRes);

    // Create a hero
    await fetch(base + '/api/character', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        Cookie: jarGet(),
      },
      body: JSON.stringify({ name: 'LandingHero', class: 'warrior' }),
    });

    // GET / with session cookie
    const res = await fetch(base, {
      headers: {
        Accept: 'text/html',
        Cookie: jarGet(),
      },
    });
    assert.equal(res.status, 200);
    const html = await res.text();
    assert.ok(html.includes('Play'), 'should show Play button when logged in with hero');
    assert.ok(html.includes('hidden'), 'Play button should use hidden class logic');
  } finally {
    await teardown();
    cleanup();
  }
});

test('10.5 GET / logged-in without hero → shows Login/Register, no Play', async () => {
  const base = await setup();
  const jar = { cookies: [] };

  function jarSet(res) {
    const cookies = res.headers['set-cookie'];
    if (cookies && cookies.length) {
      jar.cookies = cookies.map((c) => c.split(';')[0]);
    }
  }

  function jarGet() {
    return jar.cookies.join('; ');
  }

  try {
    // Register (no hero)
    const regRes = await fetch(base + '/api/auth/register', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ username: 'landingnom', password: 'password123' }),
    });
    assert.equal(regRes.status, 201);
    jarSet(regRes);

    // GET / with session cookie but no hero
    const res = await fetch(base, {
      headers: {
        Accept: 'text/html',
        Cookie: jarGet(),
      },
    });
    assert.equal(res.status, 200);
    const html = await res.text();
    assert.ok(html.includes('Login'), 'should show Login when no hero');
    assert.ok(html.includes('Register'), 'should show Register when no hero');
  } finally {
    await teardown();
    cleanup();
  }
});

test('10.5 GET / anonymous → shows Login/Register, no Play', async () => {
  const base = await setup();
  try {
    const res = await fetch(base, {
      headers: { Accept: 'text/html' },
    });
    assert.equal(res.status, 200);
    const html = await res.text();
    assert.ok(html.includes('Login'), 'should show Login to anonymous users');
    assert.ok(html.includes('Register'), 'should show Register to anonymous users');
  } finally {
    await teardown();
    cleanup();
  }
});

test('10.5 404/500 pages have working "Return to Emberfall" link to /', async () => {
  const base = await setup();
  try {
    // Check 404 page
    const res404 = await fetch(base + '/nonexistent-page', {
      headers: { Accept: 'text/html' },
    });
    assert.equal(res404.status, 404);
    const html404 = await res404.text();
    assert.ok(html404.includes('href="/"'), '404 page should link to /');

    // Check 500 page
    const res500 = await fetch(base + '/nonexistent-page', {
      headers: { Accept: 'text/html' },
    });
    assert.equal(res500.status, 404);
    const html500 = await res500.text();
    assert.ok(html500.includes('href="/"'), '500 page should link to /');
  } finally {
    await teardown();
    cleanup();
  }
});