<?php
/************************************************************************
 * This file is part of EspoCRM.
 *
 * EspoCRM - Open Source CRM application.
 * Copyright (C) 2014-2020 Yuri Kuznetsov, Taras Machyshyn, Oleksiy Avramenko
 * Website: https://www.espocrm.com
 *
 * EspoCRM is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * EspoCRM 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with EspoCRM. If not, see http://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 General Public License version 3.
 *
 * In accordance with Section 7(b) of the GNU General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
 ************************************************************************/

namespace Espo\Core;

use Espo\Core\Exceptions\Error;

use Espo\Core\ServiceFactory;
use Espo\Core\Utils\Metadata;

use Espo\Core\Services\Crud;

/**
 * Container for record services. Lazy loading is used.
 * Usually there's no need to have multiple record service instances of the same entity type.
 * Use this contanier instead of serviceFactory to get record services.
 */
class RecordServiceContainer
{
    protected $data = [];

    protected $defaultTypeMap = [
        'CategoryTree' => 'RecordTree',
    ];

    protected $serviceFactory;
    protected $metadata;

    public function __construct(ServiceFactory $serviceFactory, Metadata $metadata)
    {
        $this->serviceFactory = $serviceFactory;
        $this->metadata = $metadata;
    }

    public function get(string $entityType) : Crud
    {
        $name = $entityType;

        if (!array_key_exists($name, $this->data)) {
            if (!$this->metadata->get(['scopes', $name, 'entity'])) {
                throw new Error("Can't create record service {$name}, there's no such entity type.");
            }

            if ($this->serviceFactory->checkExists($name)) {
                $obj = $this->serviceFactory->create($name);
            } else {
                $default = 'Record';
                $type = $this->metadata->get(['scopes', $name, 'type']);
                if ($type) {
                    $default = $this->defaultTypeMap[$type] ?? $default;
                }
                $obj = $this->serviceFactory->create($default);
                $obj->setEntityType($name);
            }
            $this->data[$name] = $obj;
        }

        return $this->data[$name];
    }
}