<?php
/**
 * Created by PhpStorm.
 * User: Florian
 * Date: 19/12/2017
 * Time: 08:40
 */

namespace HookManagerBundle\Service;


use HookManagerBundle\Classes\GhostlyDataSet;
use SettingsManagerBundle\Service\SettingManager;
use Symfony\Component\HttpFoundation\Cookie;
use Symfony\Component\HttpFoundation\RequestStack;
use Symfony\Component\HttpFoundation\Response;

class GhostHTTP2PusherService
{
    /**
     * @var array
     */
    protected $images;
    /**
     * @var array
     */
    protected $scripts;
    /**
     * @var array
     */
    protected $stylesheets;

    /**
     * @var SettingManager
     */
    protected $settingManager;

    /**
     * @var Response
     */
    protected $response;

    /**
     * @var RequestStack
     */
    protected $rs;

    protected $gds;

    /**
     * GhostHTTP2PusherService constructor.
     * @param SettingManager $sm
     * @param RequestStack $rs
     */
    public function __construct(SettingManager $sm, RequestStack $rs)
    {
        $this->settingManager = $sm;
        $this->rs = $rs;
        $this->images = array();
        $this->scripts = array();
        $this->stylesheets = array();

        $cookies = $rs->getCurrentRequest()->cookies;

        if ($cookies->has('net15_http2_ghostly'))
        {
            $data = $cookies->get('net15_http2_ghostly');
            $this->gds = new GhostlyDataSet($data);
        } else {
            $this->gds = new GhostlyDataSet();
        }
    }

    protected function build(){
        foreach($this->scripts as $js){
            if(!$this->gds->isInData($js)){
                $this->gds->addToData($js);
                //$this->response->headers->set('link','<' . $js . '>; rel=preload; as=script',false);
            }
        }
        foreach($this->stylesheets as $css){
            if(!$this->gds->isInData($css)){
                $this->gds->addToData($css);
                //$this->response->headers->set('link','<' . $css . '>; rel=preload; as=style',false);
            }
        }
        foreach($this->images as $img){
            if(!$this->gds->isInData($img)){
                $this->gds->addToData($img);
                //$this->response->headers->set('link','<' . $img . '>; rel=preload; as=image',false);
            }
        }

        //die;

        $total = $this->gds->buildDataSet();
        if(strlen($total) > 4096)
            $total = "";

        $cookie = Cookie::create('net15_http2_ghostly', $total, strtotime('now + 24 hours'));
        $this->response->headers->setCookie($cookie);
    }

    /**
     * url of script to push
     *
     * @param string $jsAbsolutePath
     */
    public function pushJs($jsAbsolutePath){
        if(!in_array($jsAbsolutePath,$this->scripts))
            $this->scripts[] = $jsAbsolutePath;
    }

    /**
     * url of css to push
     *
     * @param string $cssAbsolutePath
     */
    public function pushCss($cssAbsolutePath){
        if(!in_array($cssAbsolutePath,$this->stylesheets))
            $this->stylesheets[] = $cssAbsolutePath;
    }

    /**
     * url of image to push
     *
     * @param $imgAbsolutePath
     */
    public function pushImage($imgAbsolutePath){
        if(!in_array($imgAbsolutePath,$this->images))
            $this->images[] = $imgAbsolutePath;
    }


    /**
     * push http2 & set ghostly cookie
     *
     * @return Response
     */
    public function buildResponse(){
        $this->build();
        return $this->response;
    }


    /**
     * @param mixed $response
     * @return GhostHTTP2PusherService
     */
    public function setResponse($response)
    {
        $this->response = $response;

        return $this;
    }
    /**
     * @return mixed
     */
    public function getResponse()
    {
        return $this->response;
    }
}