import assert from 'node:assert/strict';
import test from 'node:test';
import { buildApp } from '../src/app.js';
import { loadConfig } from '../src/config/env.js';
import { SESSION_COOKIE_NAME } from '../src/plugins/auth.js';
import {
  createTestConfig,
  FakeAllowedEmailRepository,
  FakeRecipeRepository,
  fakeUserRepository,
  recipeDraft,
  source,
} from './helpers/fakes.js';

function createDependencies(recipeRepository) {
  return {
    allowedEmailRepository: new FakeAllowedEmailRepository(),
    recipeRepository,
    userRepository: fakeUserRepository,
    sourceExtractor: { extract: async () => source },
    recipeParser: { parse: async () => recipeDraft },
    imageStorage: {
      saveFromUrl: async (id) => `recipes/${id}/cover.webp`,
      removeRecipe: async () => {},
    },
  };
}

function authCookie(app, sub = 'google-user-1') {
  const token = app.jwt.sign({
    sub,
    email: `${sub}@example.com`,
    name: sub,
    picture: null,
  });
  return `${SESSION_COOKIE_NAME}=${token}`;
}

test('로그인 세션 만료시간은 기본 24시간이며 환경변수로 변경할 수 있다', () => {
  assert.equal(loadConfig({}, { platform: 'win32' }).authSessionTtlHours, 24);
  assert.equal(
    loadConfig({ AUTH_SESSION_TTL_HOURS: '8' }, { platform: 'win32' }).authSessionTtlHours,
    8,
  );
});

test('관리자는 이메일만으로 Google 로그인 허용 계정을 관리한다', async (t) => {
  const dependencies = createDependencies(new FakeRecipeRepository());
  const app = await buildApp({ config: createTestConfig(), dependencies });
  t.after(() => app.close());
  const adminCookie = authCookie(app);

  const sessionResponse = await app.inject({
    method: 'GET',
    url: '/auth/me',
    headers: { cookie: adminCookie },
  });
  assert.equal(sessionResponse.json().user.canManageAccess, true);

  const memberSessionResponse = await app.inject({
    method: 'GET',
    url: '/auth/me',
    headers: { cookie: authCookie(app, 'google-user-2') },
  });
  assert.equal(memberSessionResponse.json().user.canManageAccess, false);

  const pageResponse = await app.inject({
    method: 'GET',
    url: '/',
    headers: { cookie: adminCookie },
  });
  assert.match(pageResponse.body, /id="access-menu-button"/);
  assert.match(pageResponse.body, /id="access-drawer"/);
  assert.match(pageResponse.body, /id="drawer-logout"/);
  assert.match(pageResponse.body, /id="access-overlay"/);
  assert.match(pageResponse.body, /id="scroll-to-top"/);

  const memberPageResponse = await app.inject({
    method: 'GET',
    url: '/',
    headers: { cookie: authCookie(app, 'google-user-2') },
  });
  assert.match(memberPageResponse.body, /aria-label="메뉴 열기"/);

  const addResponse = await app.inject({
    method: 'POST',
    url: '/api/allowed-emails',
    headers: { cookie: adminCookie },
    payload: { email: ' New.User@Example.com ' },
  });
  assert.equal(addResponse.statusCode, 201);
  assert.equal(addResponse.json().email, 'new.user@example.com');

  const listResponse = await app.inject({
    method: 'GET',
    url: '/api/allowed-emails',
    headers: { cookie: adminCookie },
  });
  assert.ok(listResponse.json().emails.includes('new.user@example.com'));

  const invitedSessionResponse = await app.inject({
    method: 'GET',
    url: '/api/recipes',
    headers: { cookie: authCookie(app, 'new.user') },
  });
  assert.equal(invitedSessionResponse.statusCode, 200);

  const memberResponse = await app.inject({
    method: 'POST',
    url: '/api/allowed-emails',
    headers: { cookie: authCookie(app, 'google-user-2') },
    payload: { email: 'other@example.com' },
  });
  assert.equal(memberResponse.statusCode, 403);

  const selfDeleteResponse = await app.inject({
    method: 'DELETE',
    url: '/api/allowed-emails/google-user-1%40example.com',
    headers: { cookie: adminCookie },
  });
  assert.equal(selfDeleteResponse.statusCode, 400);

  const deleteResponse = await app.inject({
    method: 'DELETE',
    url: '/api/allowed-emails/new.user%40example.com',
    headers: { cookie: adminCookie },
  });
  assert.equal(deleteResponse.statusCode, 204);

  const revokedSessionResponse = await app.inject({
    method: 'GET',
    url: '/api/recipes',
    headers: { cookie: authCookie(app, 'new.user') },
  });
  assert.equal(revokedSessionResponse.statusCode, 401);
});

test('인증 cookie가 없으면 API를 거부하고 페이지는 로그인으로 보낸다', async (t) => {
  const app = await buildApp({
    config: createTestConfig(),
    dependencies: createDependencies(new FakeRecipeRepository()),
  });
  t.after(() => app.close());

  const apiResponse = await app.inject({ method: 'GET', url: '/api/recipes' });
  assert.equal(apiResponse.statusCode, 401);

  const pageResponse = await app.inject({ method: 'GET', url: '/' });
  assert.equal(pageResponse.statusCode, 302);
  assert.equal(pageResponse.headers.location, '/login');

  const loginResponse = await app.inject({ method: 'GET', url: '/login' });
  assert.equal(loginResponse.statusCode, 200);
  assert.match(loginResponse.body, /Our Recipe Atlas/);

  const cssResponse = await app.inject({ method: 'GET', url: '/css/app.css' });
  assert.equal(cssResponse.statusCode, 200);
});

test('설정된 절대 만료시간보다 오래된 로그인 세션을 거부한다', async (t) => {
  const app = await buildApp({
    config: createTestConfig({ authSessionTtlHours: 1 }),
    dependencies: createDependencies(new FakeRecipeRepository()),
  });
  t.after(() => app.close());

  const token = app.jwt.sign({
    sub: 'google-user-1',
    email: 'google-user-1@example.com',
    name: 'google-user-1',
    picture: null,
    iat: Math.floor(Date.now() / 1000) - (60 * 60) - 1,
  }, { expiresIn: '7d' });
  const cookie = `${SESSION_COOKIE_NAME}=${token}`;

  const apiResponse = await app.inject({
    method: 'GET',
    url: '/api/recipes',
    headers: { cookie },
  });
  assert.equal(apiResponse.statusCode, 401);

  const pageResponse = await app.inject({
    method: 'GET',
    url: '/',
    headers: { cookie },
  });
  assert.equal(pageResponse.statusCode, 302);
  assert.equal(pageResponse.headers.location, '/login');
});

test('Google 로그인 시작 경로는 PKCE S256 authorization 요청을 만든다', async (t) => {
  const app = await buildApp({
    config: createTestConfig({
      google: {
        clientId: 'google-client-id',
        clientSecret: 'google-client-secret',
        callbackUrl: 'http://localhost:3000/auth/google/callback',
        allowedEmails: new Set(['allowed@example.com']),
      },
    }),
    dependencies: createDependencies(new FakeRecipeRepository()),
  });
  t.after(() => app.close());

  const response = await app.inject({ method: 'GET', url: '/auth/google' });
  assert.equal(response.statusCode, 302);
  const location = new URL(response.headers.location);
  assert.equal(location.hostname, 'accounts.google.com');
  assert.equal(location.searchParams.get('code_challenge_method'), 'S256');
  assert.equal(location.searchParams.get('scope'), 'openid email profile');
});

test('import preview와 소유자별 Recipe CRUD가 이어진다', async (t) => {
  const recipeRepository = new FakeRecipeRepository();
  const app = await buildApp({
    config: createTestConfig(),
    dependencies: createDependencies(recipeRepository),
  });
  t.after(() => app.close());
  const cookie = authCookie(app);

  const previewResponse = await app.inject({
    method: 'POST',
    url: '/api/import/preview',
    headers: { cookie },
    payload: { url: source.sourceUrl },
  });
  assert.equal(previewResponse.statusCode, 200);
  assert.equal(previewResponse.json().recipe.title, recipeDraft.title);

  const createResponse = await app.inject({
    method: 'POST',
    url: '/api/recipes',
    headers: { cookie },
    payload: {
      recipe: recipeDraft,
      source,
      imagePreviewUrl: source.thumbnailUrl,
    },
  });
  assert.equal(createResponse.statusCode, 201);
  const created = createResponse.json().recipe;
  assert.equal(created.source.url, source.sourceUrl);
  assert.match(created.imagePath, /^recipes\/.+\/cover\.webp$/);

  const listResponse = await app.inject({
    method: 'GET',
    url: '/api/recipes',
    headers: { cookie },
  });
  assert.equal(listResponse.json().recipes.length, 1);

  const otherOwnerResponse = await app.inject({
    method: 'GET',
    url: `/api/recipes/${created._id}`,
    headers: { cookie: authCookie(app, 'google-user-2') },
  });
  assert.equal(otherOwnerResponse.statusCode, 404);

  const updateResponse = await app.inject({
    method: 'PATCH',
    url: `/api/recipes/${created._id}`,
    headers: { cookie },
    payload: { title: '수정한 김치찌개' },
  });
  assert.equal(updateResponse.json().recipe.title, '수정한 김치찌개');

  const duplicateResponse = await app.inject({
    method: 'POST',
    url: '/api/recipes',
    headers: { cookie },
    payload: { recipe: recipeDraft, source },
  });
  assert.equal(duplicateResponse.statusCode, 409);

  const deleteResponse = await app.inject({
    method: 'DELETE',
    url: `/api/recipes/${created._id}`,
    headers: { cookie },
  });
  assert.equal(deleteResponse.statusCode, 204);
});