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| 1 | <?php |
| 2 | /** |
| 3 | * On Atomic sites, fetches the welcome guides the user has dismissed on WordPress.com, caches |
| 4 | * them in user meta, and reports new dismissals back. |
| 5 | * |
| 6 | * @package automattic/jetpack-mu-wpcom |
| 7 | */ |
| 8 | |
| 9 | declare( strict_types = 1 ); |
| 10 | |
| 11 | use Automattic\Jetpack\Connection\Client; |
| 12 | |
| 13 | /** |
| 14 | * User meta key for the cached guides: when they were last fetched and which ones are dismissed. |
| 15 | */ |
| 16 | const WPCOM_EDITOR_WELCOME_GUIDES_CACHE_META = 'wpcom_editor_welcome_guides'; |
| 17 | |
| 18 | /** |
| 19 | * How long the copy is served before an editor screen asks WordPress.com again. |
| 20 | */ |
| 21 | const WPCOM_EDITOR_WELCOME_GUIDES_CACHE_TTL = 5 * MINUTE_IN_SECONDS; |
| 22 | |
| 23 | /** |
| 24 | * Whether the page being loaded is an editor screen. |
| 25 | * Only editor screens fetch from WordPress.com; every other page uses the cached guides. |
| 26 | * |
| 27 | * @return bool |
| 28 | */ |
| 29 | function wpcom_editor_welcome_guides_atomic_is_editor_page_load(): bool { |
| 30 | global $pagenow; |
| 31 | |
| 32 | return in_array( $pagenow, array( 'post.php', 'post-new.php', 'site-editor.php', 'widgets.php', 'customize.php' ), true ); |
| 33 | } |
| 34 | |
| 35 | /** |
| 36 | * The cached guides for the user, or an empty cache when nothing is stored yet. |
| 37 | * |
| 38 | * @param int $user_id User ID. |
| 39 | * @return array{checked: int, dismissed: array} |
| 40 | */ |
| 41 | function wpcom_editor_welcome_guides_atomic_get_cached( int $user_id ): array { |
| 42 | $cached = get_user_meta( $user_id, WPCOM_EDITOR_WELCOME_GUIDES_CACHE_META, true ); |
| 43 | |
| 44 | return array( |
| 45 | 'checked' => (int) ( $cached['checked'] ?? 0 ), |
| 46 | 'dismissed' => is_array( $cached['dismissed'] ?? null ) ? $cached['dismissed'] : array(), |
| 47 | ); |
| 48 | } |
| 49 | |
| 50 | /** |
| 51 | * Caches the dismissed guides for the user and records the time. |
| 52 | * |
| 53 | * @param int $user_id User ID. |
| 54 | * @param array $dismissed Map of preferences scope to dismissed guide keys. |
| 55 | * @return void |
| 56 | */ |
| 57 | function wpcom_editor_welcome_guides_atomic_store( int $user_id, array $dismissed ): void { |
| 58 | update_user_meta( |
| 59 | $user_id, |
| 60 | WPCOM_EDITOR_WELCOME_GUIDES_CACHE_META, |
| 61 | array( |
| 62 | 'checked' => time(), |
| 63 | 'dismissed' => $dismissed, |
| 64 | ) |
| 65 | ); |
| 66 | } |
| 67 | |
| 68 | /** |
| 69 | * Calls the `wpcom/v2/me/editor-welcome-guides` endpoint as the current user. |
| 70 | * |
| 71 | * @param string $method HTTP method. |
| 72 | * @param array|null $body JSON body for a POST. |
| 73 | * @return array|null The dismissed guides from the response, or null when the call failed. |
| 74 | */ |
| 75 | function wpcom_editor_welcome_guides_atomic_request( string $method, ?array $body = null ): ?array { |
| 76 | if ( ! class_exists( Client::class ) ) { |
| 77 | return null; |
| 78 | } |
| 79 | |
| 80 | $response = Client::wpcom_json_api_request_as_user( |
| 81 | '/me/editor-welcome-guides', |
| 82 | '2', |
| 83 | array( |
| 84 | 'method' => $method, |
| 85 | 'timeout' => 3, |
| 86 | ), |
| 87 | $body |
| 88 | ); |
| 89 | if ( is_wp_error( $response ) || 200 !== wp_remote_retrieve_response_code( $response ) ) { |
| 90 | return null; |
| 91 | } |
| 92 | |
| 93 | $data = json_decode( wp_remote_retrieve_body( $response ), true ); |
| 94 | |
| 95 | return is_array( $data ) && is_array( $data['dismissed'] ?? null ) ? $data['dismissed'] : null; |
| 96 | } |
| 97 | |
| 98 | /** |
| 99 | * Supplies the guides the user has dismissed, from the cache, fetching from WordPress.com |
| 100 | * first when an editor screen loads for the current user and the cache is missing or stale. |
| 101 | * A failed fetch keeps the cache and still records the time, so nothing retries until the TTL passes. |
| 102 | * |
| 103 | * @param array $dismissed Value passed into the filter, not used: the cached guides replace it. |
| 104 | * @param int $user_id User ID. |
| 105 | * @return array Map of preferences scope to dismissed guide keys. |
| 106 | */ |
| 107 | function wpcom_editor_welcome_guides_atomic_get_dismissed( $dismissed, $user_id ): array { |
| 108 | $user_id = (int) $user_id; |
| 109 | $cached = wpcom_editor_welcome_guides_atomic_get_cached( $user_id ); |
| 110 | if ( |
| 111 | time() - $cached['checked'] <= WPCOM_EDITOR_WELCOME_GUIDES_CACHE_TTL |
| 112 | || get_current_user_id() !== $user_id |
| 113 | || ! wpcom_editor_welcome_guides_atomic_is_editor_page_load() |
| 114 | ) { |
| 115 | return $cached['dismissed']; |
| 116 | } |
| 117 | |
| 118 | $record = wpcom_editor_welcome_guides_atomic_request( 'GET' ) ?? $cached['dismissed']; |
| 119 | wpcom_editor_welcome_guides_atomic_store( $user_id, $record ); |
| 120 | |
| 121 | return $record; |
| 122 | } |
| 123 | add_filter( 'wpcom_editor_welcome_guides_dismissed', 'wpcom_editor_welcome_guides_atomic_get_dismissed', 10, 2 ); |
| 124 | |
| 125 | /** |
| 126 | * Sends the guides the cache does not know yet to WordPress.com, and caches the full list it returns. |
| 127 | * |
| 128 | * @param int $user_id User ID. |
| 129 | * @param array $dismissed Map of preferences scope to guide keys just dismissed. |
| 130 | * @return void |
| 131 | */ |
| 132 | function wpcom_editor_welcome_guides_atomic_record_dismissed( $user_id, $dismissed ): void { |
| 133 | $user_id = (int) $user_id; |
| 134 | if ( get_current_user_id() !== $user_id ) { |
| 135 | return; |
| 136 | } |
| 137 | |
| 138 | $known = wpcom_editor_welcome_guides_atomic_get_cached( $user_id )['dismissed']; |
| 139 | $new = array(); |
| 140 | foreach ( $dismissed as $scope => $guides ) { |
| 141 | $missing = array_values( array_diff( (array) $guides, (array) ( $known[ $scope ] ?? array() ) ) ); |
| 142 | if ( ! empty( $missing ) ) { |
| 143 | $new[ $scope ] = $missing; |
| 144 | } |
| 145 | } |
| 146 | if ( empty( $new ) ) { |
| 147 | return; |
| 148 | } |
| 149 | |
| 150 | $record = wpcom_editor_welcome_guides_atomic_request( 'POST', array( 'dismissed' => $new ) ); |
| 151 | if ( null !== $record ) { |
| 152 | wpcom_editor_welcome_guides_atomic_store( $user_id, $record ); |
| 153 | } |
| 154 | } |
| 155 | add_action( 'wpcom_editor_welcome_guides_dismiss', 'wpcom_editor_welcome_guides_atomic_record_dismissed', 10, 2 ); |