<?php

/**
 * PCurl is a REST client libary for PHP.
 *
 * See http://github.com/purplecode/php.curl for details.
 *
 * This code is licensed for use, modification, and distribution
 * under the terms of the MIT License (see http://en.wikipedia.org/wiki/MIT_License)
 */

namespace PurpleCode\PCurl\Object;

use JMS\Serializer\Exception\RuntimeException;
use JMS\Serializer\SerializerInterface;
use PurpleCode\PCurl\PCurl;
use PurpleCode\PCurl\PCurlException;

class PObjectCurl extends PCurl {

  /**
   * @var SerializerInterface
   */
  private $serializer;
  private $responseClass;

  public function __construct($host, SerializerInterface $serializer) {
    parent::__construct($host);
    $this->serializer = $serializer;

    $this->contentTypeJson();
  }

  public function responseClass($class) {
    $this->responseClass = $class;
  }

  /**
   * @return PObjectCurlResponse
   */
  public function call($method, $url, $payload = '') {
    $payload = $this->serialize($payload);
    $response = parent::call($method, $url, $payload);
    $object = $this->deserialize($response->getBody());
    return new PObjectCurlResponse($response->getHeader(), $response->getBody(), $response->getHttpCode(), $object);
  }

  private function serialize($payload) {
    try {
      return empty($payload) ? $payload : $this->serializer->serialize($payload, 'json');
    } catch (RuntimeException $e) {
      throw new PCurlException(sprintf('Unable to serialize payload - %s : %s', $e->getMessage(), $payload));
    }
  }

  private function deserialize($response) {
    if (empty($this->responseClass)) {
      return $response;
    }
    try {
      return $this->responseClass ? $this->serializer->deserialize($response, $this->responseClass, 'json') : $response;
    } catch (RuntimeException $e) {
      throw new PCurlException(sprintf('Unable to deserialize response - %s : %s', $e->getMessage(), $response));
    }
  }

}