<?php

/**
 * @file
 * Installation hooks for diff module.
 */

use Drupal\Core\Url;

/**
 * Implements hook_requirements().
 */
function diff_requirements($phase) {
  $requirements = [];

  if ($phase == 'runtime') {
    $config = \Drupal::config('diff.settings');
    $setting_enabled = $config->get('general_settings.layout_plugins.visual_inline.enabled');
    $has_htmlDiffAdvanced = class_exists('\HtmlDiffAdvanced');

    $requirements['html_diff_advanced'] = [
      'title' => t('Diff'),
      'value' => t('Installed correctly'),
      'description' => t('Diff module has been installed correctly.'),
    ];
    if (!$has_htmlDiffAdvanced) {
      if ($setting_enabled) {
        $requirements['html_diff_advanced']['value'] = t('Dependencies not found');
        $requirements['html_diff_advanced']['severity'] = REQUIREMENT_ERROR;
        $requirements['html_diff_advanced']['description'] = t("The HTML Diff layout requires the HtmlDiffAdvanced library. Please consult README.txt for installation instructions.");
      }
      else {
        $requirements['html_diff_advanced']['value'] = t('Visual inline layout');
        $requirements['html_diff_advanced']['severity'] = REQUIREMENT_INFO;
        $requirements['html_diff_advanced']['description'] = t('Diff adds a visual rendered display, consult README.txt for installation instructions and enable it in <a href=":settings">settings</a>.', [':settings' => Url::fromRoute('diff.general_settings')->toString()]);
      }
    }
  }

  return $requirements;
}

/**
 * Implements hook_install().
 */
function diff_install() {
  $visual_inline = \Drupal::service('plugin.manager.diff.layout')->hasDefinition('visual_inline');
  // Enable Visual Inline layout if library found.
  if ($visual_inline) {
    $config = \Drupal::configFactory()->getEditable('diff.settings');
    $settings_enabled = $config->get('general_settings.layout_plugins.visual_inline.enabled');
    if (!$settings_enabled) {
      $config->set('general_settings.layout_plugins.visual_inline.enabled', TRUE);
    }
    $config->save();
  }
}

/**
 * Delete stale field diff configuration. Please reconfigure diff plugins.
 */
function diff_update_8001() {
  $config = \Drupal::configFactory()->getEditable('diff.settings');
  $config->clear('entity');
  $config->save();
  $config = \Drupal::configFactory()->getEditable('diff.plugins');
  $config->clear('field_types');
  $config->save();
}

/**
 * Update diff.settings to include general_settings.revision_pager_limit.
 */
function diff_update_8002() {
  $config_factory = \Drupal::configFactory();
  $config = $config_factory->getEditable('diff.settings');
  $config->set('general_settings.revision_pager_limit', 50);
  $config->save(TRUE);
}

/**
 * Delete stale theme configuration.
 */
function diff_update_8003() {
  $config = \Drupal::configFactory()->getEditable('diff.settings');
  $config->clear('general_settings.theme');
  $config->save();
}

/**
 * Enable all layout plugins to be used.
 */
function diff_update_8004() {
  $config = \Drupal::configFactory()->getEditable('diff.settings');
  $plugins = \Drupal::service('plugin.manager.diff.layout')->getDefinitions();
  foreach ($plugins as $key => $value) {
    $plugin_options[$key] = $value['label'];
    $config->set('general_settings.layout_plugins.' . $key . '.enabled', TRUE);
  }
  $config->save();
}

/**
 * Update settings.
 */
function diff_update_8005() {
  // The original update function had a bug, it set the new configuration of
  // layout plugins using the old keys (which were changed). Update 8006 will
  // fix this issue.
}

/**
 * Update settings, set the new keys of layout plugins.
 */
function diff_update_8006() {
  $config = \Drupal::configFactory()->getEditable('diff.settings');
  $layout_manager = \Drupal::service('plugin.manager.diff.layout');
  $layout_manager->clearCachedDefinitions();
  $plugins = $layout_manager->getDefinitions();
  $config->clear('general_settings.layout_plugins');
  foreach ($plugins as $key => $value) {
    $plugin_options[$key] = $value['label'];
    $config->set('general_settings.layout_plugins.' . $key . '.enabled', TRUE);
  }
  $config->save();
}

/**
 * Update settings, renamed 'standard' to 'default'.
 */
function diff_update_8008() {
  $config = \Drupal::configFactory()->getEditable('diff.settings');
  $config->set('general_settings.visual_inline_theme', 'default');
  $config->save();
}

/**
 * Remove content type settings.
 */
function diff_update_8009() {
  $config = \Drupal::configFactory()->getEditable('diff.settings');
  $config->clear('content_type_settings');
  $config->save();
}