<?php
/**
 * Notification endpoints.
 *
 * @package SpaceBay
 */

namespace SpaceBay\Rest;

use SpaceBay\Notifications\Notifications;
use WP_REST_Request;
use WP_REST_Response;
use WP_REST_Server;

defined( 'ABSPATH' ) || exit;

/**
 * Lists the current member's notifications and marks them read.
 */
final class NotificationsController extends Controller {

	/**
	 * Registers the routes.
	 *
	 * @return void
	 */
	public function register_routes() {
		register_rest_route(
			$this->namespace,
			'/notifications',
			array(
				array(
					'methods'             => WP_REST_Server::READABLE,
					'callback'            => array( $this, 'get_items' ),
					'permission_callback' => array( $this, 'permission_logged_in' ),
					'args'                => array(
						'page'     => array(
							'type'    => 'integer',
							'default' => 1,
							'minimum' => 1,
						),
						'per_page' => array(
							'type'    => 'integer',
							'default' => 20,
							'minimum' => 1,
							'maximum' => 50,
						),
						'unread'   => array(
							'type'    => 'boolean',
							'default' => false,
						),
					),
				),
			)
		);

		register_rest_route(
			$this->namespace,
			'/notifications/count',
			array(
				array(
					'methods'             => WP_REST_Server::READABLE,
					'callback'            => array( $this, 'get_count' ),
					'permission_callback' => array( $this, 'permission_logged_in' ),
				),
			)
		);

		register_rest_route(
			$this->namespace,
			'/notifications/read',
			array(
				array(
					'methods'             => WP_REST_Server::CREATABLE,
					'callback'            => array( $this, 'mark_read' ),
					'permission_callback' => array( $this, 'permission_logged_in' ),
					'args'                => array(
						'ids' => array(
							'type'  => 'array',
							'items' => array( 'type' => 'integer' ),
						),
						'all' => array(
							'type'    => 'boolean',
							'default' => false,
						),
					),
				),
			)
		);
	}

	/**
	 * Lists notifications.
	 *
	 * @param WP_REST_Request $request Request.
	 * @return WP_REST_Response
	 */
	public function get_items( $request ) {
		$result = Notifications::for_user( get_current_user_id(), $request['page'], $request['per_page'], (bool) $request['unread'] );

		return $this->paged_response( $result['items'], $result['total'], $request['per_page'] );
	}

	/**
	 * Returns the unread count.
	 *
	 * @param WP_REST_Request $request Request.
	 * @return WP_REST_Response
	 */
	public function get_count( $request ) {
		unset( $request );

		return rest_ensure_response( array( 'unread' => Notifications::unread_count( get_current_user_id() ) ) );
	}

	/**
	 * Marks some or all notifications as read.
	 *
	 * @param WP_REST_Request $request Request.
	 * @return WP_REST_Response
	 */
	public function mark_read( $request ) {
		Notifications::mark_read( get_current_user_id(), $request['all'] ? null : (array) $request['ids'] );

		return $this->get_count( $request );
	}
}