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<?php
/**
 * AWS plugin hooks
 */

if ( ! defined( 'ABSPATH' ) ) {
    exit; // Exit if accessed directly.
}

if ( ! class_exists( 'AWS_Hooks' ) ) :

/**
     * Class for main plugin functions
     */
    class AWS_Hooks {

/**
         * @var AWS_Hooks The single instance of the class
         */
        protected static $_instance = null;

/**
         * Main AWS_Hooks Instance
         *
         * Ensures only one instance of AWS_Hooks is loaded or can be loaded.
         *
         * @static
         * @return AWS_Hooks - Main instance
         */
        public static function instance() {
            if ( is_null( self::$_instance ) ) {
                self::$_instance = new self();
            }
            return self::$_instance;
        }

/**
         * Constructor
         */
        public function __construct() {

add_filter( 'aws_search_notices', array( $this, 'aws_search_notices' ), 1, 3 );
            
        }

/*
         * Add custom text at the top of search results list
         */
        public function aws_search_notices( $notices, $results, $s_data ) {

$empty = true;
            foreach ( $results as $result ) {
                if ( ! empty( $result ) ) {
                    $empty = false;
                    break;
                }
            }

if ( ! $empty && isset( $s_data['fuzzy'] ) && $s_data['fuzzy'] === 'true_text' && isset( $s_data['similar_terms'] )  ) {

$terms_suggestions = AWS_Helpers::get_fixed_terms_suggestions( $s_data );

if ( ! empty( $terms_suggestions ) ) {
                    $new_terms = array();
                    foreach ( $terms_suggestions as $terms_suggestion ) {
                        $new_terms[] = '<span class="aws_term_suggestion"><strong>'. $terms_suggestion . '</strong></span>';
                    }
                    $notices['showing_res_for'] = '<div class="aws_terms_suggestions">' . esc_html__( 'Showing results for', 'advanced-woo-search' ) . ' ' . implode(', ', $new_terms ) . '</div>';
                }

}

if ( isset( $s_data['fuzzy'] ) && $s_data['fuzzy'] === 'false_text' ) {

$terms_suggestions = array();

if ( $empty && ! isset( $s_data['similar_terms'] ) ) {
                    $similar_terms_obj = new AWS_Similar_Terms( $s_data );
                    $similar_terms_res = $similar_terms_obj->get_similar_terms();

if ( ! empty( $similar_terms_res ) && ! empty( $similar_terms_res['all'] ) ) {

$s_data['similar_terms'] = $similar_terms_res;

$terms_suggestions = AWS_Helpers::get_fixed_terms_suggestions( $s_data );

}

if ( ! empty( $terms_suggestions ) ) {

$new_terms = array();
                    foreach ( $terms_suggestions as $terms_suggestion ) {
                        if ( $terms_suggestion === $s_data['s'] ) {
                            continue;
                        }
                        $new_terms[] = '<a data-aws-term-submit="' . $terms_suggestion . '" href="#" class="aws_term_suggestion">'. $terms_suggestion . '</a>';
                    }

if ( ! empty( $new_terms ) ) {
                        $notices['suggestions'] = '<div class="aws_terms_suggestions">' . esc_html__( 'Did you mean:', 'advanced-woo-search' ) . ' ' . implode(', ', $new_terms ) . '</div>';
                    }

}

return $notices;

}

endif;