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<?php

/**
 * Copyright 2017 MICRORISC s.r.o.
 * Copyright 2017 IQRF Tech s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

declare(strict_types=1);

namespace App\ConfigModule\Model;

use App\Model\JsonFileManager;
use Nette;
use Nette\Utils\ArrayHash;

class BaseServiceManager {

    use Nette\SmartObject;

    /**
     * @var JsonFileManager
     */
    private $fileManager;

    /**
     * @var string File name (without .json)
     */
    private $fileName = 'BaseService';

    /**
     * Constructor
     * @param JsonFileManager $fileManager
     */
    public function __construct(JsonFileManager $fileManager) {
        $this->fileManager = $fileManager;
    }

    /**
     * Add new Base service
     * @param ArrayHash $array Base service settings
     */
    public function add(ArrayHash $array) {
        $id = count($this->getServices());
        $this->save($array, $id);
    }

    /**
     * Delete Base service setting
     * @param int $id Base service ID
     */
    public function delete(int $id) {
        $json = $this->fileManager->read($this->fileName);
        unset($json['Instances'][$id]);
        $json['Instances'] = array_values($json['Instances']);
        $this->fileManager->write($this->fileName, $json);
    }

    /**
     * Get list of Base services
     * @return array Base services
     */
    public function getServices() {
        $json = $this->fileManager->read($this->fileName);
        return $json['Instances'];
    }

    /**
     * Load current settings into Base Service configuration form
     * @param int $id Base Service ID
     * @return array Array for form
     */
    public function load(int $id = 0) {
        $json = $this->fileManager->read($this->fileName);
        $instances = $json['Instances'];
        if ($id >= count($instances)) {
            return [];
        }
        $data = $instances[$id];
        $service = [];
        $service['Name'] = $data['Name'];
        $service['Messaging'] = $data['Messaging'];
        $service['Serializers'] = (array) $data['Serializers'];
        if (!empty($data['Properties'])) {
            $service['Properties'] = (array) $data['Properties'];
        } else {
            $service['Properties']['AsyncDpaMessage'] = false;
        }
        return $service;
    }

    /**
     * Save Base service setting
     * @param ArrayHash $array Base service settings
     * @param int $id Base service ID
     */
    public function save(ArrayHash $array, int $id = 0) {
        $json = $this->saveJson($this->fileManager->read($this->fileName), $array, $id);
        $this->fileManager->write($this->fileName, $json);
    }

    /**
     * Convert array from Base Service configuration form to JSON
     * @param array $services Base Service JSON array
     * @param ArrayHash $update Changed settings
     * @param int $id Base Service ID
     * @return array JSON array
     */
    public function saveJson(array $services, ArrayHash $update, int $id) {
        $service = [];
        $service['Name'] = $update['Name'];
        $service['Messaging'] = $update['Messaging'];
        $service['Serializers'] = array_values((array) $update['Serializers']);
        if (isset($update['Properties'])) {
            $service['Properties'] = (array) $update['Properties'];
        } else {
            $service['Properties'] = [];
        }
        $services['Instances'][$id] = $service;
        return $services;
    }

}