BenatEspina\StackExchangeApiClient\Application\DataTransformer\ResponseDataTransformer

Complexity

Total Complexity

8

Size/Duplication

Total Lines	80
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	2

Importance

Changes	1
Bugs	0	Features	0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	8	2
A	write()	0	4	1
A	read()	0	17	4
A	build()	0	4	1

<?php

/*
 * This file is part of the BenGorUser library.
 *
 * (c) Beñat Espiña <benatespina@gmail.com>
 * (c) Gorka Laucirica <gorka.lauzirika@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace BenatEspina\StackExchangeApiClient\Application\DataTransformer;

use BenatEspina\StackExchangeApiClient\Domain\Model\Response;

/**
 * Response data transformer.
 *
 * @author Beñat Espiña <benatespina@gmail.com>
 */
abstract class ResponseDataTransformer implements DataTransformer
{
    /**
     * The response.
     *
     * @var Response
     */
    private $response;

    /**
     * The fully qualified class name.
     *
     * @var string
     */
    private $fqcn;

    /**
     * The model class.
     *
     * @var string
     */
    protected $class;

    /**
     * Constructor.
     *
     * @param string $fqcn The fully qualified class name
     *
     * @throws InvalidModelClassName when the given fqcn is invalid
     */
    public function __construct($fqcn)
    {
        $answerReflectionClass = new \ReflectionClass($fqcn);
        if ($answerReflectionClass->implementsInterface($this->class)) {
            throw new InvalidModelClassName($fqcn);
        }
        $this->fqcn = $fqcn;
    }

    /**
     * {@inheritdoc}
     */
    public function write(Response $response)
    {
        $this->response = $response;
    }

    /**
     * {@inheritdoc}
     */
    public function read()
    {
        $data = json_decode($this->response->getBody()->getContents(), true);
        if (false === array_key_exists('items', $data)) {
            throw new \Exception('Given data is incorrect');
        }
        if (count($data['items']) > 1) {
            $objects = [];
            foreach ($data['items'] as $item) {
                $objects[] = $this->build($item);
            }

            return $objects;
        }

        return $this->build($data['items'][0]);
    }

    /**
     * Builds the object with the response data given.
     *
     * @param mixed $data The data
     *
     * @return mixed
     */
    private function build($data)
    {
        return call_user_func([$this->fqcn, 'fromJson', $data]);
    }
}