<?php

/**
 * @file
 * Contains automatic_updates.module..
 */

use Drupal\automatic_updates\ReadinessChecker\ReadinessCheckerManagerInterface;
use Drupal\Core\Url;
use Drupal\update\UpdateManagerInterface;
use Symfony\Component\Process\PhpExecutableFinder;
use Symfony\Component\Process\Process;

/**
 * Implements hook_page_top().
 */
function automatic_updates_page_top(array &$page_top) {
  /** @var \Drupal\Core\Routing\AdminContext $admin_context */
  $admin_context = \Drupal::service('router.admin_context');
  $route_match = \Drupal::routeMatch();
  if ($admin_context->isAdminRoute($route_match->getRouteObject()) && \Drupal::currentUser()->hasPermission('administer site configuration')) {
    $disabled_routes = [
      'update.theme_update',
      'system.theme_install',
      'update.module_update',
      'update.module_install',
      'update.status',
      'update.report_update',
      'update.report_install',
      'update.settings',
      'system.status',
      'update.confirmation_page',
    ];
    // These routes don't need additional nagging.
    if (in_array(\Drupal::routeMatch()->getRouteName(), $disabled_routes, TRUE)) {
      return;
    }
    /** @var \Drupal\automatic_updates\Services\AutomaticUpdatesPsaInterface $psa */
    $psa = \Drupal::service('automatic_updates.psa');
    $messages = $psa->getPublicServiceMessages();
    if ($messages) {
      \Drupal::messenger()->addError(t('Public service announcements:'));
      foreach ($messages as $message) {
        \Drupal::messenger()->addError($message);
      }
    }
    $last_check_timestamp = \Drupal::service('automatic_updates.readiness_checker')->timestamp();
    if (\Drupal::time()->getRequestTime() > $last_check_timestamp + ReadinessCheckerManagerInterface::LAST_CHECKED_WARNING) {
      $readiness_settings = Url::fromRoute('automatic_updates.settings');
      \Drupal::messenger()->addError(t('Your site has not recently run an update readiness check. <a href="@link">Administer automatic updates</a> and run readiness checks manually.', [
        '@link' => $readiness_settings->toString(),
      ]));
    }
    /** @var \Drupal\automatic_updates\ReadinessChecker\ReadinessCheckerManagerInterface $checker */
    $checker = \Drupal::service('automatic_updates.readiness_checker');
    $results = $checker->getResults(ReadinessCheckerManagerInterface::ERROR);
    if ($results) {
      \Drupal::messenger()->addError(t('Your site is currently failing readiness checks for automatic updates. It cannot be <a href="@readiness_checks">automatically updated</a> until further action is performed:', ['@readiness_checks' => 'https://www.drupal.org/docs/8/update/automatic-updates#readiness-checks']));
      foreach ($results as $message) {
        \Drupal::messenger()->addError($message);
      }
    }
    $results = $checker->getResults('warning');
    if ($results) {
      \Drupal::messenger()->addWarning(t('Your site does not pass some readiness checks for automatic updates. Depending on the nature of the failures, it might effect the eligibility for <a href="@readiness_checks">automatic updates</a>.', ['@readiness_checks' => 'https://www.drupal.org/docs/8/update/automatic-updates#readiness-checks']));
      foreach ($results as $message) {
        \Drupal::messenger()->addWarning($message);
      }
    }
  }
}

/**
 * Implements hook_cron().
 */
function automatic_updates_cron() {
  $state = \Drupal::state();
  $request_time = \Drupal::time()->getRequestTime();
  $last_check = $state->get('automatic_updates.cron_last_check', 0);
  // Only allow cron to run once every hour.
  if (($request_time - $last_check) < 3600) {
    return;
  }
  // In-place updates won't function for dev releases of Drupal core.
  $dev_core = strpos(\Drupal::VERSION, '-dev') !== FALSE;
  /** @var \Drupal\Core\Config\ImmutableConfig $config */
  $config = \Drupal::config('automatic_updates.settings');
  if (!$dev_core && $config->get('enable_cron_updates')) {
    \Drupal::service('update.manager')->refreshUpdateData();
    \Drupal::service('update.processor')->fetchData();
    $available = update_get_available(TRUE);
    $projects = update_calculate_project_data($available);
    $not_recommended_version = $projects['drupal']['status'] !== UpdateManagerInterface::CURRENT;
    $security_update = in_array($projects['drupal']['status'], [UpdateManagerInterface::NOT_SECURE, UpdateManagerInterface::REVOKED], TRUE);
    $recommended_release = isset($projects['drupal']['releases'][$projects['drupal']['recommended']]) ? $projects['drupal']['releases'][$projects['drupal']['recommended']] : NULL;
    $existing_minor_version = explode('.', \Drupal::VERSION, -1);
    $recommended_minor_version = explode('.', $recommended_release['version'], -1);
    $major_upgrade = $existing_minor_version !== $recommended_minor_version;
    if ($major_upgrade) {
      foreach (range(1, 30) as $point_version) {
        $potential_version = implode('.', array_merge($existing_minor_version, (array) $point_version));
        if (isset($available['drupal']['releases'][$potential_version])) {
          $recommended_release = $available['drupal']['releases'][$potential_version];
        }
        else {
          break;
        }
      }
    }
    // Don't automatically update major version bumps or from/to same version.
    if ($not_recommended_version && $projects['drupal']['existing_version'] !== $recommended_release['version']) {
      if ($config->get('enable_cron_security_updates')) {
        if ($security_update) {
          /** @var \Drupal\automatic_updates\Services\UpdateInterface $updater */
          $updater = \Drupal::service('automatic_updates.update');
          $updater->update('drupal', 'core', \Drupal::VERSION, $recommended_release['version']);
        }
      }
      else {
        /** @var \Drupal\automatic_updates\Services\UpdateInterface $updater */
        $updater = \Drupal::service('automatic_updates.update');
        $updater->update('drupal', 'core', \Drupal::VERSION, $recommended_release['version']);
      }
    }
  }

  /** @var \Drupal\automatic_updates\Services\NotifyInterface $notify */
  $notify = \Drupal::service('automatic_updates.psa_notify');
  $notify->send();
  /** @var \Drupal\automatic_updates\ReadinessChecker\ReadinessCheckerManagerInterface $checker */
  $checker = \Drupal::service('automatic_updates.readiness_checker');
  foreach ($checker->getCategories() as $category) {
    $checker->run($category);
  }
  $state->set('automatic_updates.cron_last_check', \Drupal::time()->getCurrentTime());
}

/**
 * Implements hook_theme().
 */
function automatic_updates_theme(array $existing, $type, $theme, $path) {
  return [
    'automatic_updates_psa_notify' => [
      'variables' => [
        'messages' => [],
      ],
    ],
  ];
}

/**
 * Implements hook_mail().
 */
function automatic_updates_mail($key, &$message, $params) {
  /** @var \Drupal\Core\Render\RendererInterface $renderer */
  $renderer = \Drupal::service('renderer');

  $message['subject'] = $params['subject'];
  $message['body'][] = $renderer->render($params['body']);
}

/**
 * Helper method to execute console command.
 *
 * @param string $command_argument
 *   The command argument.
 *
 * @return \Symfony\Component\Process\Process
 *   The console command process.
 */
function automatic_updates_console_command($command_argument) {
  $module_path = drupal_get_path('module', 'automatic_updates');
  $command = [
    (new PhpExecutableFinder())->find(),
    $module_path . '/scripts/automatic_update_tools',
    $command_argument,
    '--script-filename',
    \Drupal::request()->server->get('SCRIPT_FILENAME'),
    '--base-url',
    \Drupal::request()->getBaseUrl(),
    '--base-path',
    \Drupal::request()->getBasePath(),
  ];
  $process = new Process($command, (string) \Drupal::root(), NULL, NULL, NULL);
  $process->run();
  return $process;
}