Issue #3282696 by sanduhrs: Port of l10n_community: Add top contributors block

<?php

namespace Drupal\l10n_community\Plugin\Block;

use Drupal\Core\Block\BlockBase;

use Drupal\Core\Plugin\ContainerFactoryPluginInterface;

use Drupal\l10n_community\L10nStatistics;

use Symfony\Component\DependencyInjection\ContainerInterface;

/**

 * Provides a top contributors block.

 *

 * @Block(

 *   id = "l10n_community_top_contributors",

 *   admin_label = @Translation("Top contributors"),

 *   category = @Translation("L10n")

 * )

 */

class TopContributorsBlock extends BlockBase implements ContainerFactoryPluginInterface {

  /**

   * The l10n_community.statistics service.

   *

   * @var \Drupal\l10n_community\L10nStatistics

   */

  protected $statistics;

  /**

   * Constructs a new ProjectStatisticsBlock instance.

   *

   * @param array $configuration

   *   The plugin configuration, i.e. an array with configuration values keyed

   *   by configuration option name. The special key 'context' may be used to

   *   initialize the defined contexts by setting it to an array of context

   *   values keyed by context names.

   * @param string $plugin_id

   *   The plugin_id for the plugin instance.

   * @param mixed $plugin_definition

   *   The plugin implementation definition.

   * @param \Drupal\l10n_community\L10nStatistics $statistics

   *   The l10n_community.statistics service.

   */

  public function __construct(

      array $configuration,

      $plugin_id,

      $plugin_definition,

      L10nStatistics $statistics

  ) {

    parent::__construct(

      $configuration,

      $plugin_id,

      $plugin_definition

    );

    $this->statistics = $statistics;

  }

  /**

   * {@inheritdoc}

   */

  public static function create(

      ContainerInterface $container,

      array $configuration,

      $plugin_id,

      $plugin_definition

  ) {

    return new static(

      $configuration,

      $plugin_id,

      $plugin_definition,

      $container->get('l10n_community.statistics')

    );

  }

  /**

   * {@inheritdoc}

   */

  public function build() {

    $people = $this->statistics->getPeopleStringCount('en');

    $rows = [];

    foreach ($people as $translator) {

      $rows[] = [

        $translator['name'], $translator['sum'],

      ];

    }

    if ($rows) {

      $build['content'] = [

        '#type' => 'table',

        '#header' => [

          $this->t('Name'),

          $this->t('Translation count'),

        ],

        '#rows' => $rows,

      ];

    }

    else {

      $build['content'] = [

        '#markup' => '<p>' . $this->t('Nobody contributed to this translation yet.') . '</p>',

      ];

    }

    return $build;

  }

}