<?php
/* ===========================================================================
 * Copyright 2018 Zindex Software
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ============================================================================ */

namespace Opis\JsonSchema;

interface ISchema
{

    /**
     * Document id
     * @return string
     */
    public function id(): string;

    /**
     * @return string
     */
    public function draft(): string;

    /**
     * Resolve schema data, if id is null the document is returned
     * @param string|null $id
     * @return mixed
     */
    public function resolve(string $id = null);

}