<?php

namespace Civi\ActionProvider\Action\CiviCase;

use \Civi\ActionProvider\Action\AbstractAction;
use Civi\ActionProvider\Exception\InvalidParameterException;
use \Civi\ActionProvider\Parameter\ParameterBagInterface;
use \Civi\ActionProvider\Parameter\SpecificationBag;
use \Civi\ActionProvider\Parameter\Specification;

use Civi\ActionProvider\Utils\CustomField;
use CRM_ActionProvider_ExtensionUtil as E;

class ValidateChecksum extends AbstractAction {

  protected $relationshipTypes = array();
  protected $relationshipTypeIds = array();

  public function __construct() {
    parent::__construct();
    $relationshipTypesApi = civicrm_api3('RelationshipType', 'get', array('is_active' => 1, 'options' => array('limit' => 0)));
    $this->relationshipTypes = array();
    $this->relationshipTypeIds = array();
    foreach($relationshipTypesApi['values'] as $relType) {
      $this->relationshipTypes[$relType['name_a_b']] = $relType['label_a_b'];
      $this->relationshipTypeIds[$relType['name_a_b']] = $relType['id'];
    }
  }

	/**
	 * Run the action
	 *
	 * @param ParameterBagInterface $parameters
	 *   The parameters to this action.
	 * @param ParameterBagInterface $output
	 * 	 The parameters this action can send back
	 * @return void
   * @throws
	 */
	protected function doAction(ParameterBagInterface $parameters, ParameterBagInterface $output) {
	  $contactId = $parameters->getParameter('cid');
    $output->setParameter('contact_id', $contactId);
	}

	/**
	 * Returns the specification of the configuration options for the actual action.
	 *
	 * @return SpecificationBag
	 */
	public function getConfigurationSpecification() {
    return new SpecificationBag([
      new Specification('relationship_type_id', 'String', E::ts('Role'), true, null, null, $this->relationshipTypes, False),
    ]);
	}

	/**
	 * Returns the specification of the parameters of the actual action.
	 *
	 * @return SpecificationBag
	 */
	public function getParameterSpecification() {
		$specs = new SpecificationBag();
    $specs->addSpecification(new Specification('cs', 'String', E::ts('Checksum'), TRUE, NULL));
    $specs->addSpecification(new Specification('cid', 'Integer', E::ts('ContactID'), TRUE, NULL));
    $specs->addSpecification(new Specification('case_id', 'Integer', E::ts('Case ID'), true));
    return $specs;
	}

  /**
   * @param ParameterBagInterface $parameters
   * @return bool
   * @throws InvalidParameterException
   */
	public function validateParameters(ParameterBagInterface $parameters) {
    $case_id = $parameters->getParameter('case_id');
    $type_id = $this->relationshipTypeIds[$this->configuration->getParameter('relationship_type_id')];
    try {
      $case = civicrm_api3('Case', 'getsingle', ['id' => $case_id]);
      $relationshipFindParams = array();
      $relationshipFindParams['relationship_type_id'] = $type_id;
      $relationshipFindParams['is_active'] = '1';
      $relationshipFindParams['case_id'] = $case['id'];
      $relationshipFindParams['contact_id_b'] = $parameters->getParameter('cid');
      $relationshipFindParams['options']['sort']['contact_id_b ASC'];
      $relationshipFindParams['options']['offset'] = 0;
      $relationshipFindParams['options']['limit'] = 1;
      $relationship = civicrm_api3('Relationship', 'getsingle', $relationshipFindParams);
      $contactId = $relationship['contact_id_b'];
      if ($contactId != $parameters->getParameter('cid')) {
        throw new InvalidParameterException(E::ts('Invalid checksum, can not access contact data.'));
      }
      $checksum = $parameters->getParameter('cs');
      $valid = \CRM_Contact_BAO_Contact_Utils::validChecksum($contactId, $checksum);
	    if (!$valid) {
        throw new InvalidParameterException(E::ts('Invalid checksum, can not access contact data.'));
      }
    } catch (\CiviCRM_API3_Exception $ex) {
      throw new InvalidParameterException(E::ts('Invalid checksum, can not access contact data.'));
    }
    return TRUE;
  }

  /**
	 * Returns the specification of the output parameters of this action.
	 *
	 * This function could be overriden by child classes.
	 *
	 * @return SpecificationBag
	 */
	public function getOutputSpecification() {
		return new SpecificationBag([
			new Specification('contact_id', 'Integer', E::ts('Contact ID'), TRUE)
		]);
	}

}