<?php

declare(strict_types=1);

namespace App\Komma\Kms\Core\Sections;

use App\Komma\Kms\Core\Attributes\Attribute;

/**
 * Links a piece of data (can be anything) to a SectionTabGroups value.
 *
 * Class AbstractSectionTabItem
 */
abstract class AbstractSectionTabItem
{
    /** @var Attribute */
    private $attribute;

    /** @var string One of the SectionTabGroups group constants */
    private $group;

    /**
     * @return Attribute
     */
    public function getAttribute()
    {
        return $this->attribute;
    }

    /**
     * @param Attribute $attribute
     * @return AbstractSectionTabItem
     */
    public function setAttribute(Attribute $attribute): self
    {
        $this->attribute = $attribute;

        return $this;
    }

    /**
     * @return string Corresponds to one of the SectionTabGroups group constants
     */
    public function getGroup(): string
    {
        return $this->group;
    }

    /**
     * @param string $group One of the SectionTabGroups group constants
     * @return $this
     */
    public function setGroup(string $group): self
    {
        if (! SectionTabGroups::isValidGroup($group)) {
            throw new \InvalidArgumentException("The group '".$group."' isn't, but must be, one that is defined in the SectionTabsGroup class");
        }
        $this->group = $group;

        return $this;
    }
}