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<?php
/**
* Handle the banners
*
* @since 1.3
*
* @package LearnDash\Hub
*/
declare( strict_types=1 );
namespace LearnDash\Hub\Controller;
use LearnDash\Hub\Framework\Controller;
/**
* Handle the logic for showing the banners
*
* @since 1.3
*/
class RemoteBanners extends Controller {
const DISMISS_REMOTE_ACTION = 'dismiss_remote', IGNORE_REMOTE_SLUGS_NAME = 'ld_hub_remote_ignore';
/**
* Register hooks.
*
* @since 1.3
*
* @return void
*/
public function register_hooks(): void {
add_action( 'admin_notices', array( $this, 'maybe_show_banners' ), 9999 );
add_action( 'wp_ajax_flag_remote_dismiss', array( $this, 'hide_banner' ) );
add_action( 'admin_enqueue_scripts', array( $this, 'register_scripts' ) );
}
/**
* Register scripts and styles.
*
* @since 1.3.0
*
* @return void
*/
public function register_scripts(): void {
wp_register_style(
'learndash-hub-remote',
hub_asset_url( '/assets/css/remote.css' ),
array(),
HUB_VERSION
);
wp_register_script(
'learndash-hub-remote',
hub_asset_url( '/assets/scripts/remote.js' ),
array( 'jquery' ),
HUB_VERSION,
array(
'in_footer' => true,
)
);
}
/**
* Ajax endpoint for hide a banner permanent
*
* @since 1.3
*
* @return void
*/
public function hide_banner(): void {
if ( ! current_user_can( 'manage_options' ) ) {
return;
}
$nonce = sanitize_text_field( wp_unslash( $_POST['_wpnonce'] ?? '' ) );
if ( ! wp_verify_nonce( $nonce, self::DISMISS_REMOTE_ACTION ) ) {
return;
}
$slug = sanitize_text_field( wp_unslash( $_POST['slug'] ?? '' ) );
$slugs = get_option( self::IGNORE_REMOTE_SLUGS_NAME, array() );
$slugs[] = $slug;
$slugs = array_unique( $slugs );
update_option( self::IGNORE_REMOTE_SLUGS_NAME, $slugs );
wp_send_json_success();
}
/**
* Return the banners.
*
* @since 1.3
*
* @return array
*/
public function get_banners(): array {
$cache_name = 'learndash-hub-remote';
$cached = get_transient( $cache_name );
if ( is_array( $cached ) ) {
return $cached;
}
$request = wp_remote_get(
REMOTE_SITE . '/wp-json/learndash/v2/banners',
array(
// should be very quick.
'timeout' => 10,
)
);
if ( 200 === wp_remote_retrieve_response_code( $request ) ) {
// if it is falling here means something wrong with the request, let try again in a minute.
$body = wp_remote_retrieve_body( $request );
$data = json_decode( $body, true );
if ( is_array( $data ) ) {
$ttl = $data['ttl'] ?? 15;
set_transient( $cache_name, $data['banners'], MINUTE_IN_SECONDS * $ttl );
return $data['banners'];
}
}
// fallback if anything wrong here, will try later in a minute.
set_transient( $cache_name, array(), MINUTE_IN_SECONDS );
return array();
}
/**
* Maybe show the banners
*
* @since 1.3
*
* @return void
*/
public function maybe_show_banners(): void {
$banners = $this->filter_displayable_banners( $this->get_banners() );
if ( empty( $banners ) ) {
// nothing to show.
return;
}
wp_enqueue_style( 'learndash-hub-remote' );
wp_localize_script(
'learndash-hub-remote',
'ld_hub_remote',
array(
'nonce' => wp_create_nonce( self::DISMISS_REMOTE_ACTION ),
)
);
wp_enqueue_script( 'learndash-hub-remote' );
echo '<div class="wrap">';
foreach ( $banners as $banner ) {
$this->display_ads( $banner );
}
echo '</div>';
}
/**
* Filter the banner by its condition, eg page slug and timeframe
*
* @since 1.3
*
* @param array $banners The banner fetched from API.
*
* @return array
*/
protected function filter_displayable_banners( array $banners ): array {
$current_path = substr( wp_unslash( $_SERVER['REQUEST_URI'] ), strlen( '/wp_admin/' ) );
$ignore_slugs = get_option( self::IGNORE_REMOTE_SLUGS_NAME, array() );
foreach ( $banners as $key => $banner ) {
if ( in_array( $banner['slug'], $ignore_slugs, true ) ) {
unset( $banners[ $key ] );
continue;
}
$page_slugs = explode( ',', $banner['show_on_page_slug'] );
$page_slugs = array_map( 'trim', $page_slugs );
if ( ! in_array( $current_path, $page_slugs, true ) ) {
unset( $banners[ $key ] );
continue;
}
// check the date.
if (
! empty( $banner['date_start'] )
&& time() < strtotime( $banner['date_start'] )
) {
// time has not come.
unset( $banners[ $key ] );
continue;
}
if (
! empty( $banner['date_end'] )
&& time() > strtotime( $banner['date_end'] )
) {
// expired.
unset( $banners[ $key ] );
}
}
return $banners;
}
/**
* Render the ads.
*
* @since 1.3
*
* @param array $banner The banner settings.
*
* @return void
*/
protected function display_ads( array $banner ): void {
switch ( $banner['type'] ) {
case 'gradient_background':
$this->render( 'banners/banner-1-responsive-gradient', $banner );
break;
case 'image_background':
$this->render( 'banners/banner-1-responsive', $banner );
break;
case 'image_only':
$this->render( 'banners/banner-1', $banner );
break;
}
}
}