<?php

namespace PSX\Http;

use InvalidArgumentException;
use Psr\Http\Message\StreamInterface as PsrStreamInterface;

/**
 * Message
 *
 * @author  Christoph Kappestein <christoph.kappestein@gmail.com>
 * @license http://www.apache.org/licenses/LICENSE-2.0
 * @link    http://phpsx.org
 */
class Message implements MessageInterface
{
    /** @var array */
    protected $headers;

    /** @var \Psr\Http\Message\StreamInterface */
    protected $body;

    /** @var string */
    protected $protocol;

    /**
     * @param array $headers
     * @param \Psr\Http\Message\StreamInterface|string|resource $body
     */
    public function __construct(array $headers = array(), $body = null)
    {
        $this->headers = $this->prepareHeaders($headers);
        $this->body    = $this->prepareBody($body);
    }

    public function getProtocolVersion()
    {
        return $this->protocol;
    }

    public function setProtocolVersion($protocol)
    {
        $this->protocol = $protocol;
    }

    public function getHeaders()
    {
        return $this->headers;
    }

    public function setHeaders(array $headers)
    {
        $this->headers = $this->prepareHeaders($headers);
    }

    public function hasHeader($name)
    {
        return array_key_exists(strtolower($name), $this->headers);
    }

    public function getHeader($name)
    {
        $lines = $this->getHeaderLines($name);

        return $lines ? implode(', ', $lines) : null;
    }

    public function getHeaderLines($name)
    {
        $name = strtolower($name);

        if (!$this->hasHeader($name)) {
            return array();
        }

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

    public function setHeader($name, $value)
    {
        $this->headers[strtolower($name)] = $this->normalizeHeaderValue($value);
    }

    public function addHeader($name, $value)
    {
        $name = strtolower($name);

        if ($this->hasHeader($name)) {
            $this->setHeader($name, array_merge($this->headers[$name], $this->normalizeHeaderValue($value)));
        } else {
            $this->setHeader($name, $value);
        }
    }

    public function removeHeader($name)
    {
        $name = strtolower($name);

        if ($this->hasHeader($name)) {
            unset($this->headers[$name]);
        }
    }

    public function getBody()
    {
        return $this->body;
    }

    public function setBody(PsrStreamInterface $body)
    {
        $this->body = $body;
    }

    protected function prepareHeaders(array $headers)
    {
        return array_map(array($this, 'normalizeHeaderValue'), array_change_key_case($headers));
    }

    protected function normalizeHeaderValue($value)
    {
        return is_array($value) ? array_map('strval', $value) : [(string) $value];
    }

    protected function prepareBody($body)
    {
        if ($body instanceof PsrStreamInterface) {
            return $body;
        } elseif ($body === null) {
            return new Stream\StringStream();
        } elseif (is_string($body)) {
            return new Stream\StringStream($body);
        } elseif (is_resource($body)) {
            return new Stream\TempStream($body);
        } else {
            throw new InvalidArgumentException('Body must be either a PSX\Http\StreamInterface, string or resource');
        }
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----OTAyMjY5NTI5NTI2MzY2MyAyNjc1MTM5OTg5Njg2NjcgNTQ3MTgxOTYyNDA0ODU0