JetSmartFilters Set default value

code.php

<?php

class JSFC_Default_Value_Shortcode {
	
	private $defaults = array();
	
	private $script_enqueued = false;
	
	public function __construct() {
		add_shortcode( 'jsf_default_value', array( $this, 'do_shortcode' ) );
		add_filter( 'jet-smart-filters/filter-instance/args', array( $this, 'apply_default' ) );
	}
	
	public function do_shortcode( $args ) {
		
		$filter_id = absint( $args['filter_id'] ?? 0 );
		
		if ( empty( $filter_id ) ) {
			return;
		}
		
		$this->defaults[ $filter_id ] = $args['default'] ?? '';
		
		$this->enqueue_script();
		
	}
	
	private function enqueue_script() {
		
		if ( $this->script_enqueued ) {
			return;
		}
		
		add_action( 'wp_footer', function() use ( $script ) {
			?>

				<script>
					document.addEventListener( 'jet-smart-filters/inited', function( initEvent ) {      

						for ( const groupName in JetSmartFilters.filterGroups ) {
							JetSmartFilters.filterGroups[ groupName ].currentQuery.update = 1;
							JetSmartFilters.filterGroups[ groupName ].apply( 'ajax' );
						}

					} );
				</script>

			<?php
		} );
		
	}
	
	public function apply_default( $args ) {
		
		$filter_id = absint( $args['filter_id'] ?? 0 );
		
		if ( isset( $this->defaults[ $filter_id ] ) ) {
			$args['current_value'] = $this->defaults[ $filter_id ];
		}
		
		return $args;
		
	}
	
}

new JSFC_Default_Value_Shortcode();