Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
| 1 | <?php //phpcs:ignore WordPress.Files.FileName.InvalidClassFileName  | 
            ||
| 9 | |||
| 10 | namespace Automattic\Jetpack\Extensions;  | 
            ||
| 11 | |||
| 12 | use Jetpack;  | 
            ||
| 13 | use Jetpack_Gutenberg;  | 
            ||
| 14 | |||
| 15 | /**  | 
            ||
| 16 | * Jetpack's Ads Block class.  | 
            ||
| 17 | *  | 
            ||
| 18 | * @since 7.1.0  | 
            ||
| 19 | */  | 
            ||
| 20 | class WordAds { | 
            ||
| 21 | const FEATURE_NAME = 'wordads';  | 
            ||
| 22 | const BLOCK_NAME = 'jetpack/' . self::FEATURE_NAME;  | 
            ||
| 23 | |||
| 24 | /**  | 
            ||
| 25 | * Check if site is on WP.com Simple.  | 
            ||
| 26 | *  | 
            ||
| 27 | * @return bool  | 
            ||
| 28 | */  | 
            ||
| 29 | 	private static function is_wpcom() { | 
            ||
| 32 | /**  | 
            ||
| 33 | * Check if the WordAds module is active.  | 
            ||
| 34 | *  | 
            ||
| 35 | * @return bool  | 
            ||
| 36 | */  | 
            ||
| 37 | 	private static function is_jetpack_module_active() { | 
            ||
| 40 | |||
| 41 | /**  | 
            ||
| 42 | * Check if the site is approved for ads for WP.com Simple sites.  | 
            ||
| 43 | *  | 
            ||
| 44 | * @return bool  | 
            ||
| 45 | */  | 
            ||
| 46 | 	private static function is_available() { | 
            ||
| 53 | |||
| 54 | /**  | 
            ||
| 55 | * Register the WordAds block.  | 
            ||
| 56 | */  | 
            ||
| 57 | 	public static function register() { | 
            ||
| 67 | |||
| 68 | /**  | 
            ||
| 69 | * Set if the WordAds block is available.  | 
            ||
| 70 | */  | 
            ||
| 71 | 	public static function set_availability() { | 
            ||
| 79 | |||
| 80 | /**  | 
            ||
| 81 | * Renders the WordAds block.  | 
            ||
| 82 | *  | 
            ||
| 83 | * @param array $attr Block attributes.  | 
            ||
| 84 | *  | 
            ||
| 85 | * @return string Block HTML.  | 
            ||
| 86 | */  | 
            ||
| 87 | 	public static function gutenblock_render( $attr ) { | 
            ||
| 88 | global $wordads;  | 
            ||
| 89 | |||
| 90 | /** This filter is already documented in modules/wordads/wordads.php `insert_ad()` */  | 
            ||
| 91 | if (  | 
            ||
| 92 | empty( $wordads )  | 
            ||
| 93 | || empty( $wordads->params )  | 
            ||
| 94 | || is_feed()  | 
            ||
| 95 | || apply_filters( 'wordads_inpost_disable', false )  | 
            ||
| 96 | 		) { | 
            ||
| 97 | return '';  | 
            ||
| 98 | }  | 
            ||
| 99 | |||
| 100 | 		if ( ! empty( $attr['hideMobile'] ) && $wordads->params->is_mobile() ) { | 
            ||
| 101 | return '';  | 
            ||
| 102 | }  | 
            ||
| 103 | |||
| 104 | 		if ( ! self::is_wpcom() && $wordads->option( 'wordads_house' ) ) { | 
            ||
| 105 | return $wordads->get_ad( 'inline', 'house' );  | 
            ||
| 106 | }  | 
            ||
| 107 | |||
| 108 | // section_id is mostly depricated at this point, but it helps us (devs) keep track of which ads end up where  | 
            ||
| 109 | // 6 is to keep track of gutenblock ads.  | 
            ||
| 110 | $section_id = $wordads->params->blog_id . '6';  | 
            ||
| 111 | $align = 'center';  | 
            ||
| 112 | View Code Duplication | 		if ( isset( $attr['align'] ) && in_array( $attr['align'], array( 'left', 'center', 'right' ), true ) ) { | 
            |
| 113 | $align = $attr['align'];  | 
            ||
| 114 | }  | 
            ||
| 115 | $align = 'align' . $align;  | 
            ||
| 116 | |||
| 117 | $ad_tag_ids = $wordads->get_ad_tags();  | 
            ||
| 132 |