nebula\application\response\Response

Complexity

Total Complexity

20

Size/Duplication

Total Lines	171
Duplicated Lines	0 %

Importance

Changes

0

11 Methods

Rating	Name	Duplication	Size	Complexity
A	getHeader()	0	3	1
A	instance()	0	6	2
A	__construct()	0	3	1
A	setType()	0	3	1
A	send()	0	8	3
A	setStatus()	0	4	1
A	setHeader()	0	3	1
A	proccess()	0	13	6
A	getContext()	0	3	1
A	setContext()	0	5	1
A	getRenderInfo()	0	11	2

<?php
namespace nebula\application\response;

use nebula\Context;
use nebula\application\Request;
use nebula\component\runnable\Runnable;
use nebula\application\response\provider\Header;
use nebula\application\response\provider\Status;
use nebula\application\response\provider\Content;
use nebula\application\response\provider\MimeType;

/**
 * 响应
 */
class Response
{
    /**
     * 静态实例
     *
     * @var self
     */
    protected static $instance;


    protected function __construct()
    {
        $this->header = new Header;
    }

    /**
     * 返回实例
     *
     * @return self
     */
    public static function instance()
    {
        if (isset(static::$instance)) {
            return static::$instance;
        }
        return static::$instance = new static;
    }

    /**
     * 头部信息
     *
     * @var Header
     */
    protected $header;

    /**
     * 环境
     *
     * @var Context
     */
    protected $context;

    /**
     * Get 头部信息
     *
     * @return  Header
     */
    public function getHeader()
    {
        return $this->header;
    }

    /**
     * 设置头部
     *
     * @param string $name
     * @param string $content
     * @return void
     */
    public function setHeader(string $name, string $content)
    {
        $this->header->addHeader($name, $content);
    }

    /**
     * 发送请求头信息
     *
     * @param integer $code
     * @return void
     */
    public function setStatus(int $code)
    {
        $this->header->sendHeaderRaw('HTTP/1.1 '.$code.' '. Status::toText($code));
        $this->header->sendHeader('Status', $code.' '. Status::toText($code));
    }

    /**
     * 设置类型
     *
     * @param string $extension
     * @return void
     */
    public function setType(string $extension)
    {
        $this->header->sendHeader('Content-Type', MimeType::getMimeType($extension));
    }

    /**
     * 发送数据
     *
     * @param string $content
     * @return void
     */
    public function send(string $content)
    {
        $debug = defined('NEBULA_DBUG') && constant('NEBULA_DBUG') === true;
        if ($debug === false) {
            $this->setHeader('Content-Length', strlen($content));
        }
        $this->header->send();
        echo $content;
    }

    /**
     * 处理响应
     *
     * @param Runnable $runnable 可执行对象
     * @param Request $request 响应对象
     * @param boolean $buffer 缓存输出
     * @param boolean $allowEcho 实时输出
     * @return void
     */
    public function proccess(Runnable $runnable, Request $request, bool $buffer = true, bool $allowEcho = true)
    {
        list($echo, $value) = $this->getRenderInfo($runnable, $request, $buffer);
        $this->header->send();
        $wantEcho = strlen($echo) > 0 ;
        $noReturn = $wantEcho && is_null($value);
        if ($noReturn && $wantEcho) {
            $this->send($echo);
        } else {
            if ($allowEcho &&  $wantEcho) {
                echo $echo;
            }
            Content::send($this, $value);
        }
    }

    /**
     * 获取渲染信息
     *
     * @param Runnable $runnable
     * @param Request $request
     * @param boolean $buffer
     * @return array
     */
    private function getRenderInfo(Runnable $runnable, Request $request, bool $buffer = true) {
        $echo = '';
        $value = null;
        if ($buffer) {
            \ob_start();
            $value = $runnable->run($request, $this);
            $echo = \ob_get_clean();
        } else {
            $value = $runnable->run($request, $this);
        }
        return [$echo, $value];
    }

    /**
     * Get 环境
     *
     * @return  Context
     */
    public function getContext()
    {
        return $this->context;
    }

    /**
     * Set 环境
     *
     * @param  Context  $context  环境
     *
     * @return  self
     */
    public function setContext(Context $context)
    {
        $this->context = $context;

        return $this;
    }
}