"use strict";

if (!$) {
    const $ = django.jQuery;
}

$(function(){

    $('#id_regexp').on("focusout", function(){
        if($('#id_label').val() == "")
            $('#id_label').val($('#id_regexp').val());
        else
            $('#id_label').val($('#id_label').val() + " " + $('#id_regexp').val());

        var operators = $('#id_regexp').val().split(' ');
        const pattern = /\[[2-9]+\-[2-9]+\]/

        if(operators.length >= 2)
            var subset = operators[1];
        else
            var subset = operators[0];

        if(pattern.test(subset)){
            subset = subset.replace("[", "").replace("]", "");
            var values = subset.split("-");

            if(values[1] != "")
                if(values[0] != "")
                    $('#id_number_of_skill').val(parseInt(values[1]) - parseInt(values[0]));
                else
                    $('#id_number_of_skill').val(parseInt(values[1]));
        }
    });

});