<?php

/**
 * @file
 * helper.theme
 */

use Drupal\Core\Form\FormStateInterface;
use Drupal\gin\GinSettings;

/**
 * Accent color element.
 */
function _gin_accent_radios($element) {
  $options = array_keys($element['#options']);

  foreach ($options as $values) {
    $element[$values]['#attributes']['data-gin-accent'] = $element[$values]['#return_value'];
  }

  return $element;
}

/**
 * Toolbar element.
 */
function _gin_toolbar_radios($element) {
  $options = array_keys($element['#options']);

  $element['#attributes']['class'][] = 'toolbar-option';

  foreach ($options as $values) {
    $element[$values]['#attributes']['class'][] = 'toolbar-option__' . $element[$values]['#return_value'];
    $element[$values]['#attributes']['data-gin-toolbar'] = $element[$values]['#return_value'];
  }

  return $element;
}

/**
 * Implements helper function _gin_user_form_submit().
 */
function _gin_user_form_submit(&$form, FormStateInterface $form_state) {
  /** @var \Drupal\Core\Session\AccountInterface $account */
  $account = $form_state->getBuildInfo()['callback_object']->getEntity();

  $enabledUserOverrides = $form_state->getValue('enable_user_settings');
  /** @var \Drupal\gin\GinSettings $settings */
  $settings = \Drupal::classResolver(GinSettings::class);
  if ($enabledUserOverrides) {
    $user_settings = [
      'enable_darkmode' => $form_state->getValue('enable_darkmode'),
      'preset_accent_color' => $form_state->getValue('preset_accent_color'),
      'accent_color' => $form_state->getValue('accent_color'),
      'classic_toolbar' => $form_state->getValue('classic_toolbar'),
      'preset_focus_color' => $form_state->getValue('preset_focus_color'),
      'focus_color' => $form_state->getValue('focus_color'),
      'high_contrast_mode' => (bool) $form_state->getValue('high_contrast_mode'),
      'layout_density' => $form_state->getValue('layout_density'),
      'show_description_toggle' => $form_state->getValue('show_description_toggle'),
    ];
    $settings->setAll($user_settings, $account);
  }
  else {
    $settings->clear($account);
  }
}

/**
 * Helper function for check if Gin is active.
 */
function _gin_is_active() {
  $theme_handler = \Drupal::service('theme_handler')->listInfo();

  // Check if set as frontend theme.
  $frontend_theme_name = \Drupal::config('system.theme')->get('default');

  // Check if base themes are set.
  if (isset($theme_handler[$frontend_theme_name]->base_themes)) {
    $frontend_base_themes = $theme_handler[$frontend_theme_name]->base_themes;
  }

  // Add theme name to base theme array.
  $frontend_base_themes[$frontend_theme_name] = $frontend_theme_name;

  // Check if set as admin theme.
  $admin_theme_name = \Drupal::config('system.theme')->get('admin');

  // Admin theme will have no value if it is set to use the default theme.
  if ($admin_theme_name && isset($theme_handler[$admin_theme_name]->base_themes)) {
    $admin_base_themes = $theme_handler[$admin_theme_name]->base_themes;
    $admin_base_themes[$admin_theme_name] = $admin_theme_name;
  }
  else {
    $admin_base_themes = $frontend_base_themes;
  }

  $base_themes = array_merge($admin_base_themes, $frontend_base_themes);
  $gin_activated = array_key_exists('gin', $base_themes);

  return $gin_activated;
}