<?php

namespace Drupal\Tests\user\Functional;

use Drupal\Component\Render\FormattableMarkup;
use Drupal\Core\Entity\Entity\EntityFormDisplay;
use Drupal\Core\Field\FieldStorageDefinitionInterface;
use Drupal\field\Entity\FieldConfig;
use Drupal\field\Entity\FieldStorageConfig;
use Drupal\Tests\BrowserTestBase;

/**
 * Tests registration of user under different configurations.
 *
 * @group user
 */
class UserRegistrationTest extends BrowserTestBase {

  /**
   * Modules to enable.
   *
   * @var array
   */
  public static $modules = ['field_test'];

  public function testRegistrationWithEmailVerification() {
    $config = $this->config('user.settings');
    // Require email verification.
    $config->set('verify_mail', TRUE)->save();

    // Set registration to administrator only.
    $config->set('register', USER_REGISTER_ADMINISTRATORS_ONLY)->save();
    $this->drupalGet('user/register');
    $this->assertResponse(403, 'Registration page is inaccessible when only administrators can create accounts.');

    // Allow registration by site visitors without administrator approval.
    $config->set('register', USER_REGISTER_VISITORS)->save();
    $edit = [];
    $edit['name'] = $name = $this->randomMachineName();
    $edit['mail'] = $mail = $edit['name'] . '@example.com';
    $this->drupalPostForm('user/register', $edit, t('Create new account'));
    $this->assertText(t('A welcome message with further instructions has been sent to your email address.'), 'User registered successfully.');

    /** @var EntityStorageInterface $storage */
    $storage = $this->container->get('entity_type.manager')->getStorage('user');
    $accounts = $storage->loadByProperties(['name' => $name, 'mail' => $mail]);
    $new_user = reset($accounts);
    $this->assertTrue($new_user->isActive(), 'New account is active after registration.');
    $resetURL = user_pass_reset_url($new_user);
    $this->drupalGet($resetURL);
    $this->assertTitle(t('Set password | Drupal'), 'Page title is "Set password".');

    // Allow registration by site visitors, but require administrator approval.
    $config->set('register', USER_REGISTER_VISITORS_ADMINISTRATIVE_APPROVAL)->save();
    $edit = [];
    $edit['name'] = $name = $this->randomMachineName();
    $edit['mail'] = $mail = $edit['name'] . '@example.com';
    $this->drupalPostForm('user/register', $edit, t('Create new account'));
    $this->container->get('entity.manager')->getStorage('user')->resetCache();
    $accounts = $storage->loadByProperties(['name' => $name, 'mail' => $mail]);
    $new_user = reset($accounts);
    $this->assertFalse($new_user->isActive(), 'New account is blocked until approved by an administrator.');
  }

  public function testRegistrationWithoutEmailVerification() {
    $config = $this->config('user.settings');
    // Don't require email verification and allow registration by site visitors
    // without administrator approval.
    $config
      ->set('verify_mail', FALSE)
      ->set('register', USER_REGISTER_VISITORS)
      ->save();

    $edit = [];
    $edit['name'] = $name = $this->randomMachineName();
    $edit['mail'] = $mail = $edit['name'] . '@example.com';

    // Try entering a mismatching password.
    $edit['pass[pass1]'] = '99999.0';
    $edit['pass[pass2]'] = '99999';
    $this->drupalPostForm('user/register', $edit, t('Create new account'));
    $this->assertText(t('The specified passwords do not match.'), 'Typing mismatched passwords displays an error message.');

    // Enter a correct password.
    $edit['pass[pass1]'] = $new_pass = $this->randomMachineName();
    $edit['pass[pass2]'] = $new_pass;
    $this->drupalPostForm('user/register', $edit, t('Create new account'));
    $this->container->get('entity.manager')->getStorage('user')->resetCache();
    $accounts = $this->container->get('entity_type.manager')->getStorage('user')
      ->loadByProperties(['name' => $name, 'mail' => $mail]);
    $new_user = reset($accounts);
    $this->assertNotNull($new_user, 'New account successfully created with matching passwords.');
    $this->assertText(t('Registration successful. You are now logged in.'), 'Users are logged in after registering.');
    $this->drupalLogout();

    // Allow registration by site visitors, but require administrator approval.
    $config->set('register', USER_REGISTER_VISITORS_ADMINISTRATIVE_APPROVAL)->save();
    $edit = [];
    $edit['name'] = $name = $this->randomMachineName();
    $edit['mail'] = $mail = $edit['name'] . '@example.com';
    $edit['pass[pass1]'] = $pass = $this->randomMachineName();
    $edit['pass[pass2]'] = $pass;
    $this->drupalPostForm('user/register', $edit, t('Create new account'));
    $this->assertText(t('Thank you for applying for an account. Your account is currently pending approval by the site administrator.'), 'Users are notified of pending approval');

    // Try to log in before administrator approval.
    $auth = [
      'name' => $name,
      'pass' => $pass,
    ];
    $this->drupalPostForm('user/login', $auth, t('Log in'));
    $this->assertText(t('The username @name has not been activated or is blocked.', ['@name' => $name]), 'User cannot log in yet.');

    // Activate the new account.
    $accounts = $this->container->get('entity_type.manager')->getStorage('user')
      ->loadByProperties(['name' => $name, 'mail' => $mail]);
    $new_user = reset($accounts);
    $admin_user = $this->drupalCreateUser(['administer users']);
    $this->drupalLogin($admin_user);
    $edit = [
      'status' => 1,
    ];
    $this->drupalPostForm('user/' . $new_user->id() . '/edit', $edit, t('Save'));
    $this->drupalLogout();

    // Log in after administrator approval.
    $this->drupalPostForm('user/login', $auth, t('Log in'));
    $this->assertText(t('Member for'), 'User can log in after administrator approval.');
  }

  public function testRegistrationEmailDuplicates() {
    // Don't require email verification and allow registration by site visitors
    // without administrator approval.
    $this->config('user.settings')
      ->set('verify_mail', FALSE)
      ->set('register', USER_REGISTER_VISITORS)
      ->save();

    // Set up a user to check for duplicates.
    $duplicate_user = $this->drupalCreateUser();

    $edit = [];
    $edit['name'] = $this->randomMachineName();
    $edit['mail'] = $duplicate_user->getEmail();

    // Attempt to create a new account using an existing email address.
    $this->drupalPostForm('user/register', $edit, t('Create new account'));
    $this->assertText(t('The email address @email is already taken.', ['@email' => $duplicate_user->getEmail()]), 'Supplying an exact duplicate email address displays an error message');

    // Attempt to bypass duplicate email registration validation by adding spaces.
    $edit['mail'] = '   ' . $duplicate_user->getEmail() . '   ';

    $this->drupalPostForm('user/register', $edit, t('Create new account'));
    $this->assertText(t('The email address @email is already taken.', ['@email' => $duplicate_user->getEmail()]), 'Supplying a duplicate email address with added whitespace displays an error message');
  }

  /**
   * Tests that UUID isn't cached in form state on register form.
   *
   * This is a regression test for https://www.drupal.org/node/2500527 to ensure
   * that the form is not cached on GET requests.
   */
  public function testUuidFormState() {
    \Drupal::service('module_installer')->install(['image']);
    \Drupal::service('router.builder')->rebuild();

    // Add a picture field in order to ensure that no form cache is written,
    // which breaks registration of more than 1 user every 6 hours.
    $field_storage = FieldStorageConfig::create([
      'field_name' => 'user_picture',
      'entity_type' => 'user',
      'type' => 'image',
    ]);
    $field_storage->save();

    $field = FieldConfig::create([
      'field_name' => 'user_picture',
      'entity_type' => 'user',
      'bundle' => 'user',
    ]);
    $field->save();

    $form_display = EntityFormDisplay::create([
      'targetEntityType' => 'user',
      'bundle' => 'user',
      'mode' => 'default',
      'status' => TRUE,
    ]);
    $form_display->setComponent('user_picture', [
      'type' => 'image_image',
    ]);
    $form_display->save();

    // Don't require email verification and allow registration by site visitors
    // without administrator approval.
    $this->config('user.settings')
      ->set('verify_mail', FALSE)
      ->set('register', USER_REGISTER_VISITORS)
      ->save();

    $edit = [];
    $edit['name'] = $this->randomMachineName();
    $edit['mail'] = $edit['name'] . '@example.com';
    $edit['pass[pass2]'] = $edit['pass[pass1]'] = $this->randomMachineName();

    // Create one account.
    $this->drupalPostForm('user/register', $edit, t('Create new account'));
    $this->assertResponse(200);

    $user_storage = \Drupal::entityManager()->getStorage('user');

    $this->assertTrue($user_storage->loadByProperties(['name' => $edit['name']]));
    $this->drupalLogout();

    // Create a second account.
    $edit['name'] = $this->randomMachineName();
    $edit['mail'] = $edit['name'] . '@example.com';
    $edit['pass[pass2]'] = $edit['pass[pass1]'] = $this->randomMachineName();

    $this->drupalPostForm('user/register', $edit, t('Create new account'));
    $this->assertResponse(200);

    $this->assertTrue($user_storage->loadByProperties(['name' => $edit['name']]));
  }

  public function testRegistrationDefaultValues() {
    // Don't require email verification and allow registration by site visitors
    // without administrator approval.
    $config_user_settings = $this->config('user.settings')
      ->set('verify_mail', FALSE)
      ->set('register', USER_REGISTER_VISITORS)
      ->save();

    // Set the default timezone to Brussels.
    $config_system_date = $this->config('system.date')
      ->set('timezone.user.configurable', 1)
      ->set('timezone.default', 'Europe/Brussels')
      ->save();

    // Check the presence of expected cache tags.
    $this->drupalGet('user/register');
    $this->assertCacheTag('config:user.settings');

    $edit = [];
    $edit['name'] = $name = $this->randomMachineName();
    $edit['mail'] = $mail = $edit['name'] . '@example.com';
    $edit['pass[pass1]'] = $new_pass = $this->randomMachineName();
    $edit['pass[pass2]'] = $new_pass;
    $this->drupalPostForm(NULL, $edit, t('Create new account'));

    // Check user fields.
    $accounts = $this->container->get('entity_type.manager')->getStorage('user')
      ->loadByProperties(['name' => $name, 'mail' => $mail]);
    $new_user = reset($accounts);
    $this->assertEqual($new_user->getUsername(), $name, 'Username matches.');
    $this->assertEqual($new_user->getEmail(), $mail, 'Email address matches.');
    $this->assertTrue(($new_user->getCreatedTime() > REQUEST_TIME - 20), 'Correct creation time.');
    $this->assertEqual($new_user->isActive(), $config_user_settings->get('register') == USER_REGISTER_VISITORS ? 1 : 0, 'Correct status field.');
    $this->assertEqual($new_user->getTimezone(), $config_system_date->get('timezone.default'), 'Correct time zone field.');
    $this->assertEqual($new_user->langcode->value, \Drupal::languageManager()->getDefaultLanguage()->getId(), 'Correct language field.');
    $this->assertEqual($new_user->preferred_langcode->value, \Drupal::languageManager()->getDefaultLanguage()->getId(), 'Correct preferred language field.');
    $this->assertEqual($new_user->init->value, $mail, 'Correct init field.');
  }

  /**
   * Tests username and email field constraints on user registration.
   *
   * @see \Drupal\user\Plugin\Validation\Constraint\UserNameUnique
   * @see \Drupal\user\Plugin\Validation\Constraint\UserMailUnique
   */
  public function testUniqueFields() {
    $account = $this->drupalCreateUser();

    $edit = ['mail' => 'test@example.com', 'name' => $account->getUsername()];
    $this->drupalPostForm('user/register', $edit, t('Create new account'));
    $this->assertRaw(new FormattableMarkup('The username %value is already taken.', ['%value' => $account->getUsername()]));

    $edit = ['mail' => $account->getEmail(), 'name' => $this->randomString()];
    $this->drupalPostForm('user/register', $edit, t('Create new account'));
    $this->assertRaw(new FormattableMarkup('The email address %value is already taken.', ['%value' => $account->getEmail()]));
  }

  /**
   * Tests Field API fields on user registration forms.
   */
  public function testRegistrationWithUserFields() {
    // Create a field on 'user' entity type.
    $field_storage = FieldStorageConfig::create([
      'field_name' => 'test_user_field',
      'entity_type' => 'user',
      'type' => 'test_field',
      'cardinality' => 1,
    ]);
    $field_storage->save();
    $field = FieldConfig::create([
      'field_storage' => $field_storage,
      'label' => 'Some user field',
      'bundle' => 'user',
      'required' => TRUE,
    ]);
    $field->save();
    entity_get_form_display('user', 'user', 'default')
      ->setComponent('test_user_field', ['type' => 'test_field_widget'])
      ->save();
    entity_get_form_display('user', 'user', 'register')
      ->save();

    // Check that the field does not appear on the registration form.
    $this->drupalGet('user/register');
    $this->assertNoText($field->label(), 'The field does not appear on user registration form');
    $this->assertCacheTag('config:core.entity_form_display.user.user.register');
    $this->assertCacheTag('config:user.settings');

    // Have the field appear on the registration form.
    entity_get_form_display('user', 'user', 'register')
      ->setComponent('test_user_field', ['type' => 'test_field_widget'])
      ->save();

    $this->drupalGet('user/register');
    $this->assertText($field->label(), 'The field appears on user registration form');
    $this->assertRegistrationFormCacheTagsWithUserFields();

    // Check that validation errors are correctly reported.
    $edit = [];
    $edit['name'] = $name = $this->randomMachineName();
    $edit['mail'] = $mail = $edit['name'] . '@example.com';
    // Missing input in required field.
    $edit['test_user_field[0][value]'] = '';
    $this->drupalPostForm(NULL, $edit, t('Create new account'));
    $this->assertRegistrationFormCacheTagsWithUserFields();
    $this->assertRaw(t('@name field is required.', ['@name' => $field->label()]), 'Field validation error was correctly reported.');
    // Invalid input.
    $edit['test_user_field[0][value]'] = '-1';
    $this->drupalPostForm(NULL, $edit, t('Create new account'));
    $this->assertRegistrationFormCacheTagsWithUserFields();
    $this->assertRaw(t('%name does not accept the value -1.', ['%name' => $field->label()]), 'Field validation error was correctly reported.');

    // Submit with valid data.
    $value = rand(1, 255);
    $edit['test_user_field[0][value]'] = $value;
    $this->drupalPostForm(NULL, $edit, t('Create new account'));
    // Check user fields.
    $accounts = $this->container->get('entity_type.manager')->getStorage('user')
      ->loadByProperties(['name' => $name, 'mail' => $mail]);
    $new_user = reset($accounts);
    $this->assertEqual($new_user->test_user_field->value, $value, 'The field value was correctly saved.');

    // Check that the 'add more' button works.
    $field_storage->setCardinality(FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED);
    $field_storage->save();
    $this->drupalGet('user/register');
    $this->assertRegistrationFormCacheTagsWithUserFields();
    // Add two inputs.
    $value = rand(1, 255);
    $edit = [];
    $edit['test_user_field[0][value]'] = $value;
    $this->drupalPostForm(NULL, $edit, t('Add another item'));
    $this->drupalPostForm(NULL, $edit, t('Add another item'));
    // Submit with three values.
    $edit['test_user_field[1][value]'] = $value + 1;
    $edit['test_user_field[2][value]'] = $value + 2;
    $edit['name'] = $name = $this->randomMachineName();
    $edit['mail'] = $mail = $edit['name'] . '@example.com';
    $this->drupalPostForm(NULL, $edit, t('Create new account'));
    // Check user fields.
    $accounts = $this->container->get('entity_type.manager')->getStorage('user')
      ->loadByProperties(['name' => $name, 'mail' => $mail]);
    $new_user = reset($accounts);
    $this->assertEqual($new_user->test_user_field[0]->value, $value, 'The field value was correctly saved.');
    $this->assertEqual($new_user->test_user_field[1]->value, $value + 1, 'The field value was correctly saved.');
    $this->assertEqual($new_user->test_user_field[2]->value, $value + 2, 'The field value was correctly saved.');
  }

  /**
   * Asserts the presence of cache tags on registration form with user fields.
   */
  protected function assertRegistrationFormCacheTagsWithUserFields() {
    $this->assertCacheTag('config:core.entity_form_display.user.user.register');
    $this->assertCacheTag('config:field.field.user.user.test_user_field');
    $this->assertCacheTag('config:field.storage.user.test_user_field');
    $this->assertCacheTag('config:user.settings');
  }

}
