mutual_credit-5.0.x-dev/modules/forms/src/Plugin/Block/FirstParty.php

<?php

namespace Drupal\mcapi_forms\Plugin\Block;

use Drupal\mcapi\Entity\Transaction;
use Drupal\Core\Access\AccessResult;
use Drupal\Core\Block\BlockBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Session\AccountInterface;
use Drupal\Core\Entity\EntityFormBuilder;
use Drupal\Core\Routing\CurrentRouteMatch;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Provides a designed transaction form.
 *
 * @Block(
 *   id = "mcapi_1stparty",
 *   admin_label = @Translation("Transaction form"),
 *   category = @Translation("Community Accounting")
 * )
 */
class FirstParty extends BlockBase implements ContainerFactoryPluginInterface{

  /**
   *
   * @var EntityFormBuilder
   */
  protected $entityFormBuilder;
  /**
   *
   * @var CurrentRouteMatch
   */
  protected $currentRouteMatch;


  public function __construct($configuration, $plugin_id, $plugin_definition, EntityFormBuilder $entity_form_builder, CurrentRouteMatch $current_route_match) {
    parent::__construct($configuration, $plugin_id, $plugin_definition);
    $this->entityFormBuilder = $entity_form_builder;
    $this->currentRouteMatch = $current_route_match;
  }


  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    return new static(
      $configuration,
      $plugin_id,
      $plugin_definition,
      $container->get('entity.form_builder'),
      $container->get('current_route_match')
    );
  }

  /**
   * {@inheritdoc}
   */
  public function build() {
    $transaction = Transaction::create();
    $display_mode = $this->configuration['mode'];
    return $this->entityFormBuilder->getForm($transaction, $display_mode);
  }

  /**
   * {@inheritdoc}
   */
  public function access(AccountInterface $account, $return_as_object = FALSE) {
    $access = parent::access($account, TRUE);
    if ($access->allowed()) {
      $route_name = $this->currentRouteMatch->getRouteName();
      // Block is available if the main page is not already a transaction form.
      if (substr($route_name, 0, 14) == 'mcapi.1stparty') {
        $access = AccessResult::forbidden('Transaction form block does not show on the form page');
      }
      // Or an operation form)
      elseif (substr($route_name, 0, 25) == 'entity.mcapi_transaction.') {
        $access = AccessResult::forbidden('Transaction forms do not show on transaction operation pages.');
      }
    }
    return $return_as_object ? $access : $access->isAllowed();
  }

  /**
   * {@inheritdoc}
   */
  public function blockForm($form, FormStateInterface $form_state) {
    $form['mode'] = [
      '#title' => t('Display'),
      '#type' => 'select',
      '#options' => array_map(
        function ($m) {return $m->label();},
        mcapi_form_modes_load()
      ),
      '#default_value' => $this->configuration['mode']??key($options),
    ];
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function blockSubmit($form, FormStateInterface $form_state) {
    $this->configuration['mode'] = $form_state->getValue('mode');
  }

}