<?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;

class ServiceFactory
{
    private $container;

    public function __construct(Container $container)
    {
        $this->container = $container;
    }

    protected function getContainer()
    {
        return $this->container;
    }

    protected function getClassName($name)
    {
        return $this->getContainer()->get('classFinder')->find('Services', $name);
    }

    public function checkExists($name) {
        $className = $this->getClassName($name);
        if (!$className) {
            return false;
        }
        return true;
    }

    public function create($name)
    {
        $className = $this->getClassName($name);
        if (!$className) {
            throw new Error("Service '{$name}' was not found.");
        }
        return $this->createByClassName($className);
    }

    protected function createByClassName($className)
    {
        if (class_exists($className)) {
            $service = new $className();
            $dependencyList = $service->getDependencyList();
            foreach ($dependencyList as $name) {
                $service->inject($name, $this->container->get($name));
            }
            if (method_exists($service, 'prepare')) {
                $service->prepare();
            }
            return $service;
        }
        throw new Error("Class '$className' does not exist.");
    }
}