<?php


namespace app\modules\ldjson;

use Yii;
use yii\base\BaseObject;
use yii\helpers\Html;
use yii\helpers\Url;
use Masterminds\HTML5;


class jsonLD extends BaseObject{
	public static $author=array();
	public static $publisher=array();
	public static $ld=array(
		"@context"=>"https://schema.org",
		"@type"=>"NewsArticle"
	);
	public static $wp = array(
		"@context"=>"https://schema.org",
		"@type"=>"WebPage"
	);
	public static $person = array(
	);
	public static $identifier = array(
		"@type"=>"PropertyValue",
		"propertyID"=>"WebPage",
  	);
	public static $faq = array(
		"@context"=>"https://schema.org",
		"@type"=>"FAQPage",
		"mainEntity" => []
  	);

	public static $about=array();
	public static $breadcrumb=array();
	public static $init = false;
	public static $ffaq = false;

	public function jsonLD(){
	}

	public function init(){
		self::$init = false;
	}

	public static function addAmicORG(){
		self::$init = true;
		self::$publisher=array(
		"@type"=>"NewsMediaOrganization",
		"name"=> Yii::$app->params['orgname'],
		"legalName"=>"Информационное агентство Амител",
		"masthead"=>"https://www.amic.ru/about",
		"actionableFeedbackPolicy"=>"https://www.amic.ru/feedback/",
		"logo"=>array(
			"@type"=>"ImageObject",
			"url"=>Yii::$app->urlManager->hostInfo.'/img/logo-google.png'
		),
//		"description"=>'Новости Барнаула и Алтайского края, новости мира и России самое интересное. Новостное агенство ООО "Амител"',
		"email"=>"news@amic.ru",
		"telephone"=>"(7-385-2) 27-18-18",
		"url"=>Yii::$app->urlManager->hostInfo
	);
	}
//sameAs
	public static function story($name){
		self::$about[] = $name;
	}

	public static function author($name, $type = true){
		self::$author["name"] = $name;
		if( $type ){
			self::$author["@type"] = "Person";
		}else{
			self::$author["@type"] = "Organization";
		}
	}

	public static function publisher($name){
		$publisher["name"] = $name;
	}

	public static function addBreadcrumb( $lavel, $url, $name ){
		$lb = array( 'position'=>$lavel, '@id'=>$url, 'name'=>$name );
		self::$breadcrumb[] = $lb;
	}

//_big_640.jpg _size1
	public static function news( $title, $description, $image, $dtpub, $url, $uid='', $text='', $alt_title='' ){
		self::$wp["@id"] = $url;
		self::$identifier['value'] = $uid;
		$a = array(
			"@type"=>"Person",
			"headline"=>$title,
			"url"=>Yii::$app->urlManager->hostInfo.$url,
			"mainEntityOfPage"=>$url,
			"datePublished"=>date("c", strtotime($dtpub)),
			"description"=>$description,
			"@id"=>Yii::$app->urlManager->hostInfo.$url,
			"image"=>$image,
			"mainEntityOfPage"=>$url //self::$wp
		);
		//alternativeHeadline
		//dateModified
		//dateCreate
		if( $uid ){
			$a['identifier'] = self::$identifier;
		}
		if( $text ){
			$text = trim($text);
			$text = str_replace(["\n","\r","&nbsp;"],'',$text);
			$text = str_replace(["&nbsp;"],' ',$text);
			$a['articleBody'] = strip_tags( $text );
		}
		if(  $alt_title ){
			$a['alternativeHeadline'] = htmlspecialchars( strip_tags($alt_title) );
		}
		self::$ld = self::$ld + $a;
	}
	public static function addfaq( $text, $headline ){
		self::$faq['headline'] = $headline;
		$html5 = new HTML5();
		$dom = $html5->loadHTML($text);
        $el = $dom->getElementsByTagName('div');
        $divs = iterator_to_array($el);
        foreach ($divs as $div) {
            if($div->getAttribute('class') == 'Card-fon'){
                $flag = 0;
				$Question = '';
				$Answer = '';
                $card = $div->getElementsByTagName('h2');
                $divcard = iterator_to_array($card);
                foreach ($divcard as $cdiv) {
                    if($cdiv->getAttribute('class') == 'Card-vnutr'){
                        if( strstr( $cdiv->textContent, '?') !== false ){
                                $Question = $cdiv->textContent;
                                $flag++;
                        }
                    }
                }
                if( $flag == 0 ){
					$card = $div->getElementsByTagName('div');
					$divcard = iterator_to_array($card);
					foreach ($divcard as $cdiv) {
						if($cdiv->getAttribute('class') == 'Card-vnutr'){
							if( strstr( $cdiv->textContent, '?') !== false ){
								$Question = $cdiv->textContent;
                                $flag++;
							}
						}
					}
				}

                if( $flag ){
                        $card = $div->getElementsByTagName('div');
                        $divcard = iterator_to_array($card);
						$Answer = '';
                        foreach ($divcard as $cdiv) {
                            if($cdiv->getAttribute('class') == 'Card-text'){
                                $Answer .= $cdiv->textContent;
								$flag++;
                            }
                        }
                }
				if( $flag > 1 ){
					$a = [
						"@type" => "Question",
						"name" => $Question,
						"acceptedAnswer" => [
						"@type" => "Answer",
						"text"=>$Answer
						]
					];
					self::$faq['mainEntity'][] = $a;
					self::$ffaq = true;
				}
            }
        }
	}
	public static function person( $title, $description, $jobTitle, $image, $url, $birthDate = '' ){
		$text = strip_tags(trim($description));
		$text = str_replace(["\n","\r","&nbsp;"],'',$text);
		$text = str_replace(["&nbsp;"],' ',$text);
		$a = array(
			"name"=>$title,
			"url"=>$url,
			"description"=>$text,
			"image"=>$image,
			"jobTitle"=>htmlspecialchars($jobTitle)
		);
		if( $birthDate && $birthDate != '1970-01-01' && strtotime($birthDate) > 10){
			$a['birthDate'] = date("c", strtotime($birthDate));
		}
		self::$person = self::$person + $a;
	}

	public static function showtest(){
		$a = self::$ld;
		if( self::$author ) $a["author"] = self::$author;
		$a["publisher"] = self::$publisher;
		if( count( self::$person ) ){
			$a['@type'] = "Person";
			$a += self::$person;
		}
		if( count( self::$about ) ){
			$labout = array();
			foreach( self::$about as $name ){
				$labout[] = array( "@type" => "InformAction", "name" => $name );
			}
			$a["about"] = $labout;
		}
		if( count( self::$breadcrumb ) ){
			$labout = array();
			foreach( self::$breadcrumb as $item ){
				$labout[] = array( "@type" => "ListItem", 'position' => $item['position'], 'item' => array( "@id" => $item['@id'], "name" => $item['name'] ) );
			}
			$aa = array(
				"@type" => "BreadcrumbList",
				"itemListElement" => $labout
			);
			//$a = $a + $aa;
			$a = array_diff_key( $a, array( '@context' => 'https://schema.org' ) );
			$b = array("@context" => 'https://schema.org', "@graph" => array( $a, $aa ));
		}else{
			$a = array_diff_key( $a, array( '@context' => 'https://schema.org' ) );
			$b = array("@context" => 'https://schema.org', "@graph" => array( $a ));
		}
		echo "<!-- debug\n".self::_format_json(json_encode( $b, JSON_UNESCAPED_UNICODE ), false)." \n-->\n";
			if( self::$ffaq ){
				$aa = array(
					"@context" => 'https://schema.org'
				);
				echo "<!-- debug\n".self::_format_json(json_encode( $aa+self::$faq, JSON_UNESCAPED_UNICODE ), false)." \n-->\n";
			}
	}

	public static function show(){
		$a = self::$ld;
		$a["author"] = self::$author;
		$a["publisher"] = self::$publisher;
		echo json_encode( $a );
	}

	public static function get(){
		if( self::$init == false ) return '';
		$a = self::$ld;
		if( count( self::$person ) ){
			$a['@type'] = "Person";
			$a += self::$person;
		}else{
			$a["author"] = self::$author;
			$a["publisher"] = self::$publisher;
		}

		if( count( self::$about ) ){
			$labout = array();
			foreach( self::$about as $name ){
				$labout[] = array( "@type" => "InformAction", "name" => $name );
			}
			$a["about"] = $labout;
		}
/*
		$a = $this->ld;
		$a["author"] = $this->author;
		$a["publisher"] = $this->publisher;

		if( count( $this->about ) ){
			$labout = array();
			foreach( $this->about as $name ){
				$labout[] = array( "@type" => "Event", "name" => $name );
			}
			$a["about"] = $labout;
		}
*/
		if( count( self::$breadcrumb ) ){
			$labout = array();
			foreach( self::$breadcrumb as $item ){
				$labout[] = array( "@type" => "ListItem", 'position' => $item['position'], 'item' => array( "@id" => $item['@id'], "name" => $item['name'] ) );
			}
			$aa = array(
				"@context" => 'https://schema.org',
				"@type" => "BreadcrumbList",
				"itemListElement" => $labout
			);
			//$a = $a + $aa;
//			$a = array_diff_key( $a, array( '@context' => 'https://schema.org' ) );
//			$b = array( "@graph" => array( $aa, $a ));
		}
		$r = '<script type="application/ld+json">'.json_encode( $a, JSON_UNESCAPED_UNICODE ).'</script>'."\n";
		$r .= ( isset($aa) )?'<script type="application/ld+json">'.json_encode( $aa, JSON_UNESCAPED_UNICODE ).'</script>'."\n":'';

		if( self::$ffaq ){
				$aaa = array(
					"@context" => 'https://schema.org'
				);
				$r .='<script type="application/ld+json">'.json_encode( $aaa+self::$faq, JSON_UNESCAPED_UNICODE ).'</script>'."\n";
		}


		return $r;
	}
	public static function _format_json($json, $html = false) {
        $tabcount = 0;
        $result = '';
        $inquote = false;
        $ignorenext = false;
        if ($html) {
            $tab = "&nbsp;&nbsp;&nbsp;&nbsp;";
            $newline = "<br/>";
        } else {
            $tab = "\t";
            $newline = "\n";
        }
        for($i = 0; $i < strlen($json); $i++) {
            $char = $json[$i];
            if ($ignorenext) {
                $result .= $char;
                $ignorenext = false;
            } else {
                switch($char) {
                    case '[':
                    case '{':
                        $tabcount++;
                        $result .= $char . $newline . str_repeat($tab, $tabcount);
                        break;
                    case ']':
                    case '}':
                        $tabcount--;
                        $result = trim($result) . $newline . str_repeat($tab, $tabcount) . $char;
                        break;
                    case ',':
                        $result .= $char . $newline . str_repeat($tab, $tabcount);
                        break;
					case ':':
                        $result .= $char . " ";
                        break;
                    case '"':
                        $inquote = !$inquote;
                        $result .= $char;
                        break;
                    case '\\':
                        if ($inquote) $ignorenext = true;
                        $result .= $char;
                        break;
                    default:
                        $result .= $char;
                }
            }
        }
        return str_replace(': //','://',str_replace('\/','/',$result));
    }

    public static function addBreadcrumbList()
    {
        $view = Yii::$app->getView();

        $breadcrumbList = [];
        if (isset($view->params['breadcrumbs'])) {
            $position = 1;
            foreach ($view->params['breadcrumbs'] as $breadcrumb) {
                if (is_array($breadcrumb)) {
                    $breadcrumbList[] = (object)[
                        "@type" => "http://schema.org/ListItem",
                        "http://schema.org/position" => $position,
                        "http://schema.org/item" => (object)[
                            "@id" => Url::to($breadcrumb['url'], true),
                            "http://schema.org/name" => $breadcrumb['label'],
                        ]
                    ];
                } else {
                    // Is it ok to omit URL here or not? Google is not clear on that:
                    // http://stackoverflow.com/questions/33688608/how-to-markup-the-last-non-linking-item-in-breadcrumbs-list-using-json-ld
                    $breadcrumbList[] = (object)[
                        "@type" => "http://schema.org/ListItem",
                        "http://schema.org/position" => $position,
                        "http://schema.org/item" => (object)[
                            "http://schema.org/name" => $breadcrumb,
                        ]
                    ];
                }
                $position++;
            }
        }

        $doc = (object)[
            "@type" => "http://schema.org/BreadcrumbList",
            "http://schema.org/itemListElement" => $breadcrumbList
        ];

        JsonLDHelper::add($doc);
    }


}