/**
 * Created by lichbt on 7/15/2016.
 */
(function ( $ ) {
    $.fn.inputFormatMoney = function( options ) {

        // This is the easiest way to have default options.
        var opts = $.extend({
            // These are the defaults.
            separator: '.',
            wrapClass: 'input-format-money',
            formatInputClass: 'input-format'
        }, options );

        function formatInput (target, separator) {
            var reg1 = new RegExp("[^0-9\\" + separator + "]+", "g");
            var reg2 = new RegExp("\\" + separator, "gi");
            var reg3 = new RegExp("("+ separator +"{3})", "g");

            var roundNum =target.val().replace(reg1, '').replace(reg2, "");
            var num = roundNum.split("").reverse().join("");
            var num2 = RemoveRougeChar(num.replace(reg3, "$1" + separator ).split("").reverse().join(""), separator);
            target.val(num2);
            return roundNum;
        }

        // Format input number
        function RemoveRougeChar (convertString, separator) {
            if (convertString.substring(0,1) == separator) {
                return convertString.substring(1, convertString.length)
            }
            return convertString;
        }

        function init(target, options) {
            var value = target.val();
            var name = target.attr('name') + '_format-input';


            target.wrap('<div class="'+ options.wrapClass +'"></div>');
            target.hide();

            var input = $('<input type="text" name="'+ name +'" class="'+ options.formatInputClass +'" value="'+ value +'">');
            input.insertAfter(target);

            var realValue = formatInput(input, options.separator);
            target.val(realValue);

            input.on('keyup change', function (e) {
                var self = $(this);
                if (e.which >= 37 && e.which <= 40) {

                } else {
                    var realValue = formatInput(self, options.separator);
                    target.val(realValue);
                }
            });
        }

        this.filter( "input" ).each(function() {
            var self = $( this );
            init(self, opts);
        });
        return this;
    };
}(jQuery));