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<?php

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/**

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* Smush integration with Rest API: Rest class

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* @package Smush\Core

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* @since 2.8.0

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* @author Anton Vanyukov <anton@incsub.com>

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namespace Smush\Core;

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use WP_Smush;

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if ( ! defined( 'WPINC' ) ) {

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die;

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}

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/**

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* Singleton class Rest for extending the WordPress REST API interface.

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* @since 2.8.0

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class Rest {

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/**

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* Rest constructor.

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public function __construct() {

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// Register smush meta fields and callbacks for the image object in the

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// wp-json/wp/v2/media REST API endpoint.

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add_action( 'rest_api_init', array( $this, 'register_smush_meta' ) );

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// Custom route for handling configs.

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add_action( 'rest_api_init', array( $this, 'register_configs_route' ) );

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}

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/**

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* Callback for rest_api_init action.

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* @since 2.8.0

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public function register_smush_meta() {

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register_rest_field(

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'attachment',

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'smush',

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array(

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'get_callback' => array( $this, 'register_image_stats' ),

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'schema' => array(

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'description' => __( 'Smush data.', 'wp-smushit' ),

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'type' => 'string',

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)

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);

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}

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/**

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* Add image stats to the wp-json/wp/v2/media REST API endpoint.

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* Will add the stats from wp-smpro-smush-data image meta key to the media REST API endpoint.

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* If image is Smushed, the stats from the meta can be queried, if the not - the status of Smushing

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* will be displayed as a string in the API.

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* @since 2.8.0

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* @link https://developer.wordpress.org/rest-api/reference/media/

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* @param array $image Image array.

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* @return array|string

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public function register_image_stats( $image ) {

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if ( get_transient( 'smush-in-progress-' . $image['id'] ) ) {

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return __( 'Smushing in progress', 'wp-smushit' );

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}

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$wp_smush_data = get_post_meta( $image['id'], Modules\Smush::$smushed_meta_key, true );

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if ( empty( $wp_smush_data ) ) {

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return __( 'Not processed', 'wp-smushit' );

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}

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$wp_resize_savings = get_post_meta( $image['id'], 'wp-smush-resize_savings', true );

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$conversion_savings = get_post_meta( $image['id'], 'wp-smush-pngjpg_savings', true );

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$combined_stats = WP_Smush::get_instance()->core()->combined_stats( $wp_smush_data, $wp_resize_savings );

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return WP_Smush::get_instance()->core()->combine_conversion_stats( $combined_stats, $conversion_savings );

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}

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/**

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* Registers the custom route for handling configs.

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* @since 3.8.6

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public function register_configs_route() {

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$configs_handler = new Configs();

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register_rest_route(

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'wp-smush/v1',

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'/preset_configs/',

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array(

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array(

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'methods' => 'GET',

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'callback' => array( $configs_handler, 'get_callback' ),

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'permission_callback' => array( $configs_handler, 'permission_callback' ),

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array(

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'methods' => 'POST',

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'callback' => array( $configs_handler, 'post_callback' ),

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'permission_callback' => array( $configs_handler, 'permission_callback' ),

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)

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);

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}

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}

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