Base.php

<?php
/**
 * Base controller class.
 *
 * @since 0.1
 */

namespace CiviCRM_WP_REST\Controller;

use CiviCRM_WP_REST\Endpoint\Endpoint_Interface;

abstract class Base extends \WP_REST_Controller implements Endpoint_Interface {

	/**
	 * Route namespace.
	 *
	 * @since 0.1
	 * @var string
	 */
	protected $namespace = 'civicrm/v3';

	/**
	 * Gets the endpoint namespace.
	 *
	 * @since 0.1
	 * @return string $namespace
	 */
	public function get_namespace() {

		return $this->namespace;

	}

	/**
	 * Gets the rest base route.
	 *
	 * @since 0.1
	 * @return string $rest_base
	 */
	public function get_rest_base() {

		return '/' . $this->rest_base;

	}

	/**
	 * Retrieves the endpoint ie. '/civicrm/v3/rest'.
	 *
	 * @since 0.1
	 * @return string $rest_base
	 */
	public function get_endpoint() {

		return '/' . $this->get_namespace() . $this->get_rest_base();

	}

	/**
	 * Checks whether the requested route is equal to this endpoint.
	 *
	 * @since 0.1
	 * @param WP_REST_Request $request
	 * @return bool $is_current_endpoint True if it's equal, false otherwise
	 */
	public function is_current_endpoint( $request ) {

		return $this->get_endpoint() == $request->get_route();

	}

	/**
	 * Authorization status code.
	 *
	 * @since 0.1
	 * @return int $status
	 */
	protected function authorization_status_code() {

		$status = 401;

		if ( is_user_logged_in() ) $status = 403;

		return $status;

	}

	/**
	 * Wrapper for WP_Error.
	 *
	 * @since 0.1
	 * @param string|\CiviCRM_API3_Exception|\WP_Error $error
	 * @param mixed $data Error data
	 * @return WP_Error $error
	 */
	protected function civi_rest_error( $error, $data = [] ) {

		if ( $error instanceof \CiviCRM_API3_Exception ) {

			return $error->getExtraParams();

		} elseif ( $error instanceof \WP_Error ) {

			return $error;

		}

		return new \WP_Error( 'civicrm_rest_api_error', $error, empty( $data ) ? [ 'status' => $this->authorization_status_code() ] : $data );

	}

}