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<?php
/**
* Experiments.
*
* @since 4.13.0
*
* @package LearnDash\Core
*/
namespace LearnDash\Core\Modules\Experiments;
/**
* Experiments.
*
* @since 4.13.0
*/
class Experiments {
/**
* The handle for the action items javascript.
*
* @since 4.15.2
*
* @var string
*/
private const JS_ACTION_ITEMS_HANDLE = 'learndash-experiments-action-items';
/**
* Contains the list of enabled experiment instances.
*
* @since 4.13.0
*
* @var Experiment[]
*/
protected $experiments = [];
/**
* Initializes the module.
*
* @since 4.13.0
*
* @return void
*/
public function init(): void {
$this->load_experiments();
/**
* Fires before the experiments are initialized.
*
* @since 4.13.0
*
* @param Experiment[] $experiments List of experiment instances.
*/
do_action( 'learndash_experiments_init_before', $this->experiments );
foreach ( $this->experiments as $experiment ) {
$experiment->init();
}
/**
* Fires after the experiments are initialized.
*
* @since 4.13.0
*
* @param Experiment[] $experiments List of experiment instances.
*/
do_action( 'learndash_experiments_init_after', $this->experiments );
}
/**
* Gets the list of experiments.
*
* @since 4.13.0
*
* @return Experiment[]
*/
public function get_experiments(): array {
return $this->experiments;
}
/**
* Enqueues admin scripts.
*
* @since 4.15.2
*
* @return void
*/
public function enqueue_admin_scripts(): void {
wp_register_script(
self::JS_ACTION_ITEMS_HANDLE,
LEARNDASH_LMS_PLUGIN_URL . 'src/assets/dist/js/admin/modules/experiments/action-items.js',
[ 'jquery' ],
LEARNDASH_SCRIPT_VERSION_TOKEN,
true
);
wp_enqueue_script( self::JS_ACTION_ITEMS_HANDLE );
}
/**
* Loads the list of experiments.
*
* @since 4.13.0
*
* @return void
*/
protected function load_experiments(): void {
/**
* Filters the list of experiments.
*
* @since 4.13.0
*
* @param Experiment[] $experiments List of experiment instances.
*
* @return Experiment[] List of experiment instances.
*/
$experiments = apply_filters( 'learndash_experiments', [] );
$experiments = array_filter(
$experiments,
function ( $experiment ): bool {
return $experiment instanceof Experiment;
}
);
$this->experiments = array_values( $experiments );
}
}