import { HttpStatus, INestApplication } from '@nestjs/common';
import { PrismaClient } from '@prisma/client';
import ava, { TestFn } from 'ava';
import Sinon from 'sinon';
import request from 'supertest';

import { MailService } from '../../src/base';
import { AuthModule, CurrentUser } from '../../src/core/auth';
import { AuthService } from '../../src/core/auth/service';
import { FeatureModule } from '../../src/core/features';
import { UserModule, UserService } from '../../src/core/user';
import { createTestingApp, getSession, sessionCookie } from '../utils';

const test = ava as TestFn<{
  auth: AuthService;
  user: UserService;
  u1: CurrentUser;
  db: PrismaClient;
  mailer: Sinon.SinonStubbedInstance<MailService>;
  app: INestApplication;
}>;

test.before(async t => {
  const { app } = await createTestingApp({
    imports: [FeatureModule, UserModule, AuthModule],
    tapModule: m => {
      m.overrideProvider(MailService).useValue(
        Sinon.createStubInstance(MailService)
      );
    },
  });

  t.context.auth = app.get(AuthService);
  t.context.user = app.get(UserService);
  t.context.db = app.get(PrismaClient);
  t.context.mailer = app.get(MailService);
  t.context.app = app;

  t.context.u1 = await t.context.auth.signUp('u1@affine.pro', '1');
});

test.beforeEach(() => {
  Sinon.reset();
});

test.after.always(async t => {
  await t.context.app.close();
});

test('should be able to sign in with credential', async t => {
  const { app, u1 } = t.context;

  const res = await request(app.getHttpServer())
    .post('/api/auth/sign-in')
    .send({ email: u1.email, password: '1' })
    .expect(200);

  const session = await getSession(app, res);
  t.is(session.user!.id, u1.id);
});

test('should be able to sign in with email', async t => {
  const { app, u1, mailer } = t.context;

  // @ts-expect-error mock
  mailer.sendSignInMail.resolves({ rejected: [] });

  const res = await request(app.getHttpServer())
    .post('/api/auth/sign-in')
    .send({ email: u1.email })
    .expect(200);

  t.is(res.body.email, u1.email);
  t.true(mailer.sendSignInMail.calledOnce);

  const [signInLink] = mailer.sendSignInMail.firstCall.args;
  const url = new URL(signInLink);
  const email = url.searchParams.get('email');
  const token = url.searchParams.get('token');

  const signInRes = await request(app.getHttpServer())
    .post('/api/auth/magic-link')
    .send({ email, token })
    .expect(201);

  const session = await getSession(app, signInRes);
  t.is(session.user!.id, u1.id);
});

test('should be able to sign up with email', async t => {
  const { app, mailer } = t.context;

  // @ts-expect-error mock
  mailer.sendSignUpMail.resolves({ rejected: [] });

  const res = await request(app.getHttpServer())
    .post('/api/auth/sign-in')
    .send({ email: 'u2@affine.pro' })
    .expect(200);

  t.is(res.body.email, 'u2@affine.pro');
  t.true(mailer.sendSignUpMail.calledOnce);

  const [signUpLink] = mailer.sendSignUpMail.firstCall.args;
  const url = new URL(signUpLink);
  const email = url.searchParams.get('email');
  const token = url.searchParams.get('token');

  const signInRes = await request(app.getHttpServer())
    .post('/api/auth/magic-link')
    .send({ email, token })
    .expect(201);

  const session = await getSession(app, signInRes);
  t.is(session.user!.email, 'u2@affine.pro');
});

test('should not be able to sign in if email is invalid', async t => {
  const { app } = t.context;

  const res = await request(app.getHttpServer())
    .post('/api/auth/sign-in')
    .send({ email: '' })
    .expect(400);

  t.is(res.body.message, 'An invalid email provided: ');
});

test('should not be able to sign in if forbidden', async t => {
  const { app, auth, u1, mailer } = t.context;

  const canSignInStub = Sinon.stub(auth, 'canSignIn').resolves(false);

  await request(app.getHttpServer())
    .post('/api/auth/sign-in')
    .send({ email: u1.email })
    .expect(HttpStatus.FORBIDDEN);

  t.true(mailer.sendSignInMail.notCalled);

  canSignInStub.restore();
});

test('should be able to sign out', async t => {
  const { app, u1 } = t.context;

  const signInRes = await request(app.getHttpServer())
    .post('/api/auth/sign-in')
    .send({ email: u1.email, password: '1' })
    .expect(200);

  const cookie = sessionCookie(signInRes.headers);

  await request(app.getHttpServer())
    .get('/api/auth/sign-out')
    .set('cookie', cookie)
    .expect(200);

  const session = await getSession(app, signInRes);

  t.falsy(session.user);
});

test('should be able to correct user id cookie', async t => {
  const { app, u1 } = t.context;

  const signInRes = await request(app.getHttpServer())
    .post('/api/auth/sign-in')
    .send({ email: u1.email, password: '1' })
    .expect(200);

  const cookie = sessionCookie(signInRes.headers);

  let session = await request(app.getHttpServer())
    .get('/api/auth/session')
    .set('cookie', cookie)
    .expect(200);

  let userIdCookie = session.get('Set-Cookie')?.find(c => {
    return c.startsWith(`${AuthService.userCookieName}=`);
  });

  t.true(userIdCookie?.startsWith(`${AuthService.userCookieName}=${u1.id}`));

  session = await request(app.getHttpServer())
    .get('/api/auth/session')
    .set('cookie', `${cookie};${AuthService.userCookieName}=invalid_user_id`)
    .expect(200);

  userIdCookie = session.get('Set-Cookie')?.find(c => {
    return c.startsWith(`${AuthService.userCookieName}=`);
  });

  t.true(userIdCookie?.startsWith(`${AuthService.userCookieName}=${u1.id}`));
  t.is(session.body.user.id, u1.id);
});

// multiple accounts session tests
test('should be able to sign in another account in one session', async t => {
  const { app, u1, auth } = t.context;

  const u2 = await auth.signUp('u3@affine.pro', '3');

  // sign in u1
  const signInRes = await request(app.getHttpServer())
    .post('/api/auth/sign-in')
    .send({ email: u1.email, password: '1' })
    .expect(200);

  const cookie = sessionCookie(signInRes.headers);

  // avoid create session at the exact same time, leads to same random session users order
  await new Promise(resolve => setTimeout(resolve, 1));

  // sign in u2 in the same session
  await request(app.getHttpServer())
    .post('/api/auth/sign-in')
    .set('cookie', cookie)
    .send({ email: u2.email, password: '3' })
    .expect(200);

  // list [u1, u2]
  const sessions = await request(app.getHttpServer())
    .get('/api/auth/sessions')
    .set('cookie', cookie)
    .expect(200);

  t.is(sessions.body.users.length, 2);
  t.is(sessions.body.users[0].id, u1.id);
  t.is(sessions.body.users[1].id, u2.id);

  // default to latest signed in user: u2
  let session = await request(app.getHttpServer())
    .get('/api/auth/session')
    .set('cookie', cookie)
    .expect(200);

  t.is(session.body.user.id, u2.id);

  // switch to u1
  session = await request(app.getHttpServer())
    .get('/api/auth/session')
    .set('cookie', `${cookie};${AuthService.userCookieName}=${u1.id}`)
    .expect(200);

  t.is(session.body.user.id, u1.id);
});

test('should be able to sign out multiple accounts in one session', async t => {
  const { app, u1, auth } = t.context;

  const u2 = await auth.signUp('u4@affine.pro', '4');

  // sign in u1
  const signInRes = await request(app.getHttpServer())
    .post('/api/auth/sign-in')
    .send({ email: u1.email, password: '1' })
    .expect(200);

  const cookie = sessionCookie(signInRes.headers);

  await new Promise(resolve => setTimeout(resolve, 1));

  // sign in u2 in the same session
  await request(app.getHttpServer())
    .post('/api/auth/sign-in')
    .set('cookie', cookie)
    .send({ email: u2.email, password: '4' })
    .expect(200);

  // sign out u2
  let signOut = await request(app.getHttpServer())
    .get(`/api/auth/sign-out?user_id=${u2.id}`)
    .set('cookie', `${cookie};${AuthService.userCookieName}=${u2.id}`)
    .expect(200);

  // auto switch to u1 after sign out u2
  const userIdCookie = signOut.get('Set-Cookie')?.find(c => {
    return c.startsWith(`${AuthService.userCookieName}=`);
  });

  t.true(userIdCookie?.startsWith(`${AuthService.userCookieName}=${u1.id}`));

  // list [u1]
  const session = await request(app.getHttpServer())
    .get('/api/auth/session')
    .set('cookie', cookie)
    .expect(200);

  t.is(session.body.user.id, u1.id);

  // sign in u2 in the same session
  await request(app.getHttpServer())
    .post('/api/auth/sign-in')
    .set('cookie', cookie)
    .send({ email: u2.email, password: '4' })
    .expect(200);

  // sign out all account in session
  signOut = await request(app.getHttpServer())
    .get('/api/auth/sign-out')
    .set('cookie', cookie)
    .expect(200);

  t.true(
    signOut
      .get('Set-Cookie')
      ?.some(c => c.startsWith(`${AuthService.sessionCookieName}=;`))
  );
  t.true(
    signOut
      .get('Set-Cookie')
      ?.some(c => c.startsWith(`${AuthService.userCookieName}=;`))
  );
});