JetSmartFilters debug

jsf-filter-debug.php

<?php

//debug Jet Smart Filters, AJAX submit type only
class JSF_Filters_Debug {
	
	private static $instance = null;
	
	public $debug_info = array();
	
	public $vars_in_request = array();
	
	public $print = true;
	
	public static function instance() {
		if ( empty( self::$instance ) ) {
			self::$instance = new self;
		}
		
		return self::$instance;
	}
	
	private function __construct() {
		add_action( 'jet-smart-filters/init', array( $this, 'maybe_add_debug_code' ) );
	}
	
	public function add_data( $key, $data ) {
		$this->debug_info[ $key ] = $data;
	}
	
	public function maybe_add_debug_code() {
		
		if ( ! empty( $_GET['jsf_force_debug'] ) || ( wp_doing_ajax() || isset( $_GET['jsf_ajax'] ) ) && isset( $_REQUEST['action'] ) && $_REQUEST['action'] === 'jet_smart_filters' ) {
			
			add_filter( 'jet-smart-filters/query/request', array( $this, 'jsf_request' ), 9999999, 2 );
			
			add_filter( 'jet-smart-filters/query/vars', array( $this, 'jsf_query_vars' ), 999999 );
			
			add_filter( 'jet-smart-filters/query/final-query', array( $this, 'jsf_final_query' ), 999999 );
			
			add_action( 'jet-engine/query-builder/query/before-get-items', array( $this, 'je_query_before_get_items' ), 999999 );
			
			add_action( 'shutdown', array( $this, 'print_debug_on_error' ) );
			
			//comment out if you do not need filters to add info to filter response data
			add_filter( 'jet-smart-filters/render/ajax/data', array( $this, 'add_debug_to_response' ), 999999 );
			
		}

	}
	
	public function add_debug_to_response( $data ) {
		
		$data['debug']['fired'] = array_keys( $this->debug_info );
		$data['debug']['info']  = $this->debug_info;
		
		$this->print = false;
		
		return $data;
		
	}
	
	public function jsf_request( $request, $query ) {
		
		$data = $request['query'] ?? array();
		
		if ( ! empty( $data ) ) {
			
			foreach( $query->query_vars() as $var ) {
				array_walk( $data, function( $value, $key ) use ( $var ) {
					if ( strpos( $key, $var ) ) {
						$this->vars_in_request[] = $var;
					}
				} );
			}
			
		}
		
		$this->debug_info['jsf_request']['vars_in_request'] = $this->vars_in_request;
		$this->debug_info['jsf_request']['request']         = $request;
		
		return $request;
		
	}
	
	public function jsf_query_vars( $query_vars ) {
		
		$this->query_vars = $query_vars;
		
		$this->debug_info['jsf_query_vars'] = $query_vars;
		
		return $query_vars;
		
	}
	
	public function jsf_final_query( $query ) {
		
		$this->debug_info['jsf_final_query'] = $query;
		
		return $query;
		
	}
	
	public function je_query_before_get_items( $query ) {
		
		if ( ! empty( $this->debug_info ) ) {
			$this->debug_info['je_query_before_get_items'][] = $query->final_query;
		}
		
	}
	
	public function print_debug_on_error() {
		
		$errors_to_print = array(
			E_ERROR             => 'E_ERROR',
			E_PARSE             => 'E_PARSE',
			E_RECOVERABLE_ERROR => 'E_RECOVERABLE_ERROR',
		);
		
		$error = error_get_last();
		
		$is_fatal = isset( $errors_to_print[ $error['type'] ] );
		
		if ( ! empty( $this->debug_info ) && ( $is_fatal || $this->print ) ) {
			$error['type'] = $errors_to_print[ $error['type'] ];
			echo '<pre>';
			if ( $is_fatal ) {
				var_dump( array( 'error' => $error ) );
			}
			$fired = array_keys( $this->debug_info );
			var_dump( array( 'fired' => $fired ) );
			var_dump( $this->debug_info );
			echo '</pre>';
		}
		
	}
	
}

JSF_Filters_Debug::instance();

function jsf_filters_debug() {
	return JSF_Filters_Debug::instance();
}