class SiteConfigureForm

class SiteConfigureForm extends ConfigFormBase {
    
    /**
     * The site path.
     *
     * @var string
     */
    protected $sitePath;
    
    /**
     * The user storage.
     *
     * @var \Drupal\user\UserStorageInterface
     */
    protected $userStorage;
    
    /**
     * The state service.
     *
     * @var \Drupal\Core\State\StateInterface
     */
    protected $state;
    
    /**
     * The module installer.
     *
     * @var \Drupal\Core\Extension\ModuleInstallerInterface
     */
    protected $moduleInstaller;
    
    /**
     * The country manager.
     *
     * @var \Drupal\Core\Locale\CountryManagerInterface
     */
    protected $countryManager;
    
    /**
     * The app root.
     *
     * @var string
     */
    protected $root;
    
    /**
     * Constructs a new SiteConfigureForm.
     *
     * @param string $root
     *   The app root.
     * @param string $site_path
     *   The site path.
     * @param \Drupal\user\UserStorageInterface $user_storage
     *   The user storage.
     * @param \Drupal\Core\State\StateInterface $state
     *   The state service.
     * @param \Drupal\Core\Extension\ModuleInstallerInterface $module_installer
     *   The module installer.
     * @param \Drupal\Core\Locale\CountryManagerInterface $country_manager
     *   The country manager.
     */
    public function __construct($root, $site_path, UserStorageInterface $user_storage, StateInterface $state, ModuleInstallerInterface $module_installer, CountryManagerInterface $country_manager) {
        $this->root = $root;
        $this->sitePath = $site_path;
        $this->userStorage = $user_storage;
        $this->state = $state;
        $this->moduleInstaller = $module_installer;
        $this->countryManager = $country_manager;
    }
    
    /**
     * {@inheritdoc}
     */
    public static function create(ContainerInterface $container) {
        return new static($container->get('app.root'), $container->get('site.path'), $container->get('entity_type.manager')
            ->getStorage('user'), $container->get('state'), $container->get('module_installer'), $container->get('country_manager'));
    }
    
    /**
     * {@inheritdoc}
     */
    public function getFormId() {
        return 'install_configure_form';
    }
    
    /**
     * {@inheritdoc}
     */
    protected function getEditableConfigNames() {
        return [
            'system.date',
            'system.site',
            'update.settings',
        ];
    }
    
    /**
     * {@inheritdoc}
     */
    public function buildForm(array $form, FormStateInterface $form_state) {
        global $install_state;
        $form['#title'] = $this->t('Configure site');
        // Warn about settings.php permissions risk
        $settings_dir = $this->sitePath;
        $settings_file = $settings_dir . '/settings.php';
        // Check that $_POST is empty so we only show this message when the form is
        // first displayed, not on the next page after it is submitted. (We do not
        // want to repeat it multiple times because it is a general warning that is
        // not related to the rest of the installation process; it would also be
        // especially out of place on the last page of the installer, where it would
        // distract from the message that the Drupal installation has completed
        // successfully.)
        $post_params = $this->getRequest()->request
            ->all();
        if (empty($post_params) && (Settings::get('skip_permissions_hardening') || !drupal_verify_install_file($this->root . '/' . $settings_file, FILE_EXIST | FILE_READABLE | FILE_NOT_WRITABLE) || !drupal_verify_install_file($this->root . '/' . $settings_dir, FILE_NOT_WRITABLE, 'dir'))) {
            $this->messenger()
                ->addWarning(t('All necessary changes to %dir and %file have been made, so you should remove write permissions to them now in order to avoid security risks. If you are unsure how to do so, consult the <a href=":handbook_url">online handbook</a>.', [
                '%dir' => $settings_dir,
                '%file' => $settings_file,
                ':handbook_url' => 'https://www.drupal.org/server-permissions',
            ]));
        }
        $form['#attached']['library'][] = 'system/drupal.system';
        // Add JavaScript time zone detection.
        $form['#attached']['library'][] = 'core/drupal.timezone';
        // We add these strings as settings because JavaScript translation does not
        // work during installation.
        $form['#attached']['drupalSettings']['copyFieldValue']['edit-site-mail'] = [
            'edit-account-mail',
        ];
        $form['site_information'] = [
            '#type' => 'fieldgroup',
            '#title' => $this->t('Site information'),
            '#access' => empty($install_state['config_install_path']),
        ];
        $form['site_information']['site_name'] = [
            '#type' => 'textfield',
            '#title' => $this->t('Site name'),
            '#required' => TRUE,
            '#weight' => -20,
            '#access' => empty($install_state['config_install_path']),
        ];
        // Use the default site mail if one is already configured, or fall back to
        // PHP's configured sendmail_from.
        $default_site_mail = $this->config('system.site')
            ->get('mail') ?: ini_get('sendmail_from');
        $form['site_information']['site_mail'] = [
            '#type' => 'email',
            '#title' => $this->t('Site email address'),
            '#default_value' => $default_site_mail,
            '#description' => $this->t("Automated emails, such as registration information, will be sent from this address. Use an address ending in your site's domain to help prevent these emails from being flagged as spam."),
            '#required' => TRUE,
            '#weight' => -15,
            '#access' => empty($install_state['config_install_path']),
        ];
        $form['admin_account'] = [
            '#type' => 'fieldgroup',
            '#title' => $this->t('Site maintenance account'),
        ];
        $form['admin_account']['account']['name'] = [
            '#type' => 'textfield',
            '#title' => $this->t('Username'),
            '#maxlength' => UserInterface::USERNAME_MAX_LENGTH,
            '#description' => $this->t("Several special characters are allowed, including space, period (.), hyphen (-), apostrophe ('), underscore (_), and the @ sign."),
            '#required' => TRUE,
            '#attributes' => [
                'class' => [
                    'username',
                ],
            ],
        ];
        $form['admin_account']['account']['pass'] = [
            '#type' => 'password_confirm',
            '#required' => TRUE,
            '#size' => 25,
        ];
        $form['admin_account']['account']['#tree'] = TRUE;
        $form['admin_account']['account']['mail'] = [
            '#type' => 'email',
            '#title' => $this->t('Email address'),
            '#required' => TRUE,
        ];
        $form['regional_settings'] = [
            '#type' => 'fieldgroup',
            '#title' => $this->t('Regional settings'),
            '#access' => empty($install_state['config_install_path']),
        ];
        $countries = $this->countryManager
            ->getList();
        $form['regional_settings']['site_default_country'] = [
            '#type' => 'select',
            '#title' => $this->t('Default country'),
            '#empty_value' => '',
            '#default_value' => $this->config('system.date')
                ->get('country.default'),
            '#options' => $countries,
            '#weight' => 0,
            '#access' => empty($install_state['config_install_path']),
        ];
        // Use the default site timezone if one is already configured, or fall back
        // to the system timezone if set (and avoid throwing a warning in
        // PHP >=5.4).
        $default_timezone = $this->config('system.date')
            ->get('timezone.default') ?: @date_default_timezone_get();
        $form['regional_settings']['date_default_timezone'] = [
            '#type' => 'select',
            '#title' => $this->t('Default time zone'),
            '#default_value' => $default_timezone,
            '#options' => system_time_zones(NULL, TRUE),
            '#weight' => 5,
            '#attributes' => [
                'class' => [
                    'timezone-detect',
                ],
            ],
            '#access' => empty($install_state['config_install_path']),
        ];
        $form['update_notifications'] = [
            '#type' => 'fieldgroup',
            '#title' => $this->t('Update notifications'),
            '#description' => $this->t('When checking for updates, anonymous information about your site is sent to <a href="@drupal">Drupal.org</a>.', [
                '@drupal' => 'https://drupal.org',
            ]),
            '#access' => empty($install_state['config_install_path']),
        ];
        $form['update_notifications']['enable_update_status_module'] = [
            '#type' => 'checkbox',
            '#title' => $this->t('Check for updates automatically'),
            '#default_value' => 1,
            '#access' => empty($install_state['config_install_path']),
        ];
        $form['update_notifications']['enable_update_status_emails'] = [
            '#type' => 'checkbox',
            '#title' => $this->t('Receive email notifications'),
            '#default_value' => 1,
            '#states' => [
                'visible' => [
                    'input[name="enable_update_status_module"]' => [
                        'checked' => TRUE,
                    ],
                ],
            ],
            '#access' => empty($install_state['config_install_path']),
        ];
        $form['actions'] = [
            '#type' => 'actions',
        ];
        $form['actions']['submit'] = [
            '#type' => 'submit',
            '#value' => $this->t('Save and continue'),
            '#weight' => 15,
            '#button_type' => 'primary',
        ];
        return $form;
    }
    
    /**
     * {@inheritdoc}
     */
    public function validateForm(array &$form, FormStateInterface $form_state) {
        if ($error = user_validate_name($form_state->getValue([
            'account',
            'name',
        ]))) {
            $form_state->setErrorByName('account][name', $error);
        }
    }
    
    /**
     * {@inheritdoc}
     */
    public function submitForm(array &$form, FormStateInterface $form_state) {
        global $install_state;
        if (empty($install_state['config_install_path'])) {
            $this->config('system.site')
                ->set('name', (string) $form_state->getValue('site_name'))
                ->set('mail', (string) $form_state->getValue('site_mail'))
                ->save(TRUE);
            $this->config('system.date')
                ->set('timezone.default', (string) $form_state->getValue('date_default_timezone'))
                ->set('country.default', (string) $form_state->getValue('site_default_country'))
                ->save(TRUE);
        }
        $account_values = $form_state->getValue('account');
        // Enable update.module if this option was selected.
        $update_status_module = $form_state->getValue('enable_update_status_module');
        if (empty($install_state['config_install_path']) && $update_status_module) {
            $this->moduleInstaller
                ->install([
                'update',
            ]);
            // Add the site maintenance account's email address to the list of
            // addresses to be notified when updates are available, if selected.
            $email_update_status_emails = $form_state->getValue('enable_update_status_emails');
            if ($email_update_status_emails) {
                // Reset the configuration factory so it is updated with the new module.
                $this->resetConfigFactory();
                $this->config('update.settings')
                    ->set('notification.emails', [
                    $account_values['mail'],
                ])
                    ->save(TRUE);
            }
        }
        // We precreated user 1 with placeholder values. Let's save the real values.
        $account = $this->userStorage
            ->load(1);
        $account->init = $account->mail = $account_values['mail'];
        $account->roles = $account->getRoles();
        $account->activate();
        $account->timezone = $form_state->getValue('date_default_timezone');
        $account->pass = $account_values['pass'];
        $account->name = $account_values['name'];
        $account->save();
        // Record when this install ran.
        $this->state
            ->set('install_time', $_SERVER['REQUEST_TIME']);
    }

}