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<?php

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namespace Yoast\WP\SEO\Generators;

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use Yoast\WP\SEO\Context\Meta_Tags_Context;

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use Yoast\WP\SEO\Helpers\Image_Helper;

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use Yoast\WP\SEO\Helpers\Twitter\Image_Helper as Twitter_Image_Helper;

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use Yoast\WP\SEO\Helpers\Url_Helper;

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use Yoast\WP\SEO\Models\Indexable;

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use Yoast\WP\SEO\Values\Twitter\Images;

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/**

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* Represents the generator class for the Twitter images.

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class Twitter_Image_Generator implements Generator_Interface {

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/**

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* The Twitter image helper.

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* @var Twitter_Image_Helper

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protected $twitter_image;

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/**

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* The image helper.

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* @var Image_Helper

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protected $image;

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/**

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* The URL helper.

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* @var Url_Helper

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protected $url;

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/**

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* Twitter_Image_Generator constructor.

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* @codeCoverageIgnore

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* @param Image_Helper $image The image helper.

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* @param Url_Helper $url The url helper.

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* @param Twitter_Image_Helper $twitter_image The Twitter image helper.

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public function __construct( Image_Helper $image, Url_Helper $url, Twitter_Image_Helper $twitter_image ) {

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$this->image = $image;

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$this->url = $url;

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$this->twitter_image = $twitter_image;

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}

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/**

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* Retrieves the images for an indexable.

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* @param Meta_Tags_Context $context The context.

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* @return array<array<string,string|int>> The images.

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public function generate( Meta_Tags_Context $context ) {

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$image_container = $this->get_image_container();

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$this->add_from_indexable( $context->indexable, $image_container );

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return $image_container->get_images();

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}

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/**

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* Adds an image based on the given indexable.

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* @param Indexable $indexable The indexable.

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* @param Images $image_container The image container.

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* @return void

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protected function add_from_indexable( Indexable $indexable, Images $image_container ) {

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if ( $indexable->twitter_image_id ) {

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$image_container->add_image_by_id( $indexable->twitter_image_id );

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return;

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}

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if ( $indexable->twitter_image ) {

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$image_container->add_image_by_url( $indexable->twitter_image );

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}

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}

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/**

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* Retrieves an instance of the image container.

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* @codeCoverageIgnore

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* @return Images The image container.

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protected function get_image_container() {

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$image_container = new Images( $this->image, $this->url );

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$image_container->image_size = $this->twitter_image->get_image_size();

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$image_container->set_helpers( $this->twitter_image );

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return $image_container;

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}

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}

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