<?php

namespace Civi\ActionProvider\Action\Event;

use Civi\ActionProvider\Action\AbstractGetSingleAction;
use \Civi\ActionProvider\Parameter\ParameterBagInterface;
use \Civi\ActionProvider\Parameter\SpecificationBag;
use \Civi\ActionProvider\Parameter\Specification;
use \Civi\ActionProvider\Parameter\OptionGroupSpecification;
use CRM_ActionProvider_ExtensionUtil as E;

class GetParticipant extends AbstractGetSingleAction {

  /**
   * Returns the name of the entity.
   *
   * @return string
   */
  protected function getApiEntity() {
    return 'Participant';
  }

  /**
   * Returns the ID from the parameter array
   *
   * @param \Civi\ActionProvider\Parameter\ParameterBagInterface $parameters
   *
   * @return int
   */
  protected function getIdFromParamaters(ParameterBagInterface $parameters) {
    return $parameters->getParameter('contact_id');
  }

  /**
   * Returns the specification of the configuration options for the actual action.
   *
   * @return SpecificationBag
   */
  public function getConfigurationSpecification() {
    return new SpecificationBag(array(
      new OptionGroupSpecification('role_id', 'participant_role', E::ts('Role'), true, null, FALSE),
    ));
  }

  /**
   * Returns the specification of the configuration options for the actual action.
   *
   * @return SpecificationBag
   */
  public function getParameterSpecification() {
    $specs = new SpecificationBag(array(
      /**
       * The parameters given to the Specification object are:
       * @param string $name
       * @param string $dataType
       * @param string $title
       * @param bool $required
       * @param mixed $defaultValue
       * @param string|null $fkEntity
       * @param array $options
       * @param bool $multiple
       */
      new Specification('event_id', 'Integer', E::ts('Event ID'), true, null, null, null, FALSE),
      new Specification('contact_id', 'Integer', E::ts('Contact ID'), true, null, null, null, FALSE),
    ));

    return $specs;
  }

  /**
   * Run the action
   *
   * @param ParameterBagInterface $parameters
   *   The parameters to this action.
   * @param ParameterBagInterface $output
   *   The parameters this action can send back
   * @return void
   */
  protected function doAction(ParameterBagInterface $parameters, ParameterBagInterface $output) {
    // Get the contact and the event.
    $contact_id = $parameters->getParameter('contact_id');
    $event_id = $parameters->getParameter('event_id');
    $role_id = $this->configuration->getParameter('role_id');

    $participant_id = \CRM_Core_DAO::singleValueQuery("SELECT id FROM civicrm_participant WHERE is_test = '0' AND contact_id = %1 AND event_id = %2 and role_id = %3 ORDER BY id DESC LIMIT 1", array(
      1 => array($contact_id, 'Integer'),
      2 => array($event_id, 'Integer'),
      3 => array($role_id, 'Integer')
    ));

    if (!$participant_id) {
      return;
    }

    try {
      $participant = civicrm_api3('Participant', 'getsingle', array('id' => $participant_id));
      $this->setOutputFromEntity($participant, $output);
    } catch (\Exception $e) {
      // Do nothing
    }
  }


}