Mpyw\OpenGraph\Publisher

Complexity

Total Complexity

9

Size/Duplication

Total Lines	48
Duplicated Lines	0 %

Test Coverage

Coverage

95.65%

Importance

Changes

0

1 Method

Rating	Name	Duplication	Size	Complexity
B	generateHtml()	0	35	9

<?php

namespace Mpyw\OpenGraph;

use DateTimeInterface;
use Mpyw\OpenGraph\Exceptions\UnexpectedValueException;
use Mpyw\OpenGraph\Objects\ObjectBase;

/**
 * Class for generating Open Graph tags from objects.
 */
class Publisher
{
    public const DOCTYPE_HTML5 = 1;
    public const DOCTYPE_XHTML = 2;

    /**
     * Defines the style in which HTML tags should be written. Use one of Publisher::DOCTYPE_HTML5 or
     * Publisher::DOCTYPE_XHTML.
     *
     * @var int
     */
    public $doctype = self::DOCTYPE_HTML5;

    public function generateHtml(ObjectBase $object)
    {
        $html = '';
        $format = '<meta property="%s" content="%s"' . ($this->doctype == self::DOCTYPE_XHTML ? ' />' : '>');

        foreach ($object->getProperties() as $property) {
            if ($html !== '') {
                $html .= "\n";
            }

            if ($property->value === null) {
                continue;
            }
            if ($property->value instanceof DateTimeInterface) {
                $value = $property->value->format('c');
            } elseif (is_object($property->value)) {
                throw new UnexpectedValueException(
                    sprintf(
                        "Cannot handle value of type '%s' for property '%s'.",
                        get_class($property->value),
                        $property->key
                    )
                );
            } elseif ($property->value === true) {
                $value = '1';
            } elseif ($property->value === false) {
                $value = '0';
            } else {
                $value = (string)$property->value;
            }

            $html .= sprintf($format, $property->key, htmlspecialchars($value));
        }

        return $html;
    }
}