<?php
/************************************************************************
 * This file is part of EspoCRM.
 *
 * EspoCRM – Open Source CRM application.
 * Copyright (C) 2014-2026 EspoCRM, Inc.
 * Website: https://www.espocrm.com
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License version 3.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
 ************************************************************************/

namespace Espo\Modules\Crm\Tools\MassEmail;

use Espo\Core\Utils\Metadata;
use Espo\ORM\Defs;
use Espo\Modules\Crm\Entities\TargetList;
use RuntimeException;

class Util
{
    /** @var string[] */
    private array $targetLinkList;

    public function __construct(
        private Defs $ormDefs,
        private Metadata $metadata
    ) {
        $this->targetLinkList = $this->metadata->get(['scopes', 'TargetList', 'targetLinkList']) ?? [];
    }

    public function getLinkByEntityType(string $entityType): string
    {
        foreach ($this->targetLinkList as $link) {
            $itemEntityType = $this->ormDefs
                ->getEntity(TargetList::ENTITY_TYPE)
                ->getRelation($link)
                ->getForeignEntityType();

            if ($itemEntityType === $entityType) {
                return $link;
            }
        }

        throw new RuntimeException("No link for $entityType.");
    }
}