<?php declare(strict_types=1);

/**
 * @license Apache 2.0
 */

namespace OpenApi\Annotations;

use OpenApi\Generator;

/**
 * A "Tag Object":  https://github.com/OAI/OpenAPI-Specification/blob/OpenAPI.next/versions/3.0.md#tagObject.
 *
 * @Annotation
 */
class Tag extends AbstractAnnotation
{
    /**
     * The name of the tag.
     *
     * @var string
     */
    public $name = Generator::UNDEFINED;

    /**
     * A short description for the tag. GFM syntax can be used for rich text representation.
     *
     * @var string
     */
    public $description = Generator::UNDEFINED;

    /**
     * Additional external documentation for this tag.
     *
     * @var ExternalDocumentation
     */
    public $externalDocs = Generator::UNDEFINED;

    /**
     * @inheritdoc
     */
    public static $_required = ['name'];

    /**
     * @inheritdoc
     */
    public static $_types = [
        'name' => 'string',
        'description' => 'string',
    ];

    /**
     * @inheritdoc
     */
    public static $_parents = [
        OpenApi::class,
    ];

    /**
     * @inheritdoc
     */
    public static $_nested = [
        ExternalDocumentation::class => 'externalDocs',
        Attachable::class => ['attachables'],
    ];
}