//  This file is part of the jQuery formatCurrency Plugin.

//

//    The jQuery formatCurrency Plugin is free software: you can redistribute it

//    and/or modify it under the terms of the GNU General Public License as published 

//    by the Free Software Foundation, either version 3 of the License, or

//    (at your option) any later version.



//    The jQuery formatCurrency Plugin is distributed in the hope that it will

//    be useful, but WITHOUT ANY WARRANTY; without even the implied warranty 

//    of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

//    GNU General Public License for more details.

//

//    You should have received a copy of the GNU General Public License along with 

//    the jQuery formatCurrency Plugin.  If not, see <http://www.gnu.org/licenses/>.



(function($) {



    $.formatCurrency = {};



    $.formatCurrency.regions = [];



    // default Region is en

    $.formatCurrency.regions[''] = {

        symbol: '$',

        positiveFormat: '%s%n',

        negativeFormat: '(%s%n)',

        decimalSymbol: '.',

        digitGroupSymbol: ',',

        groupDigits: true

    };



    $.fn.formatCurrency = function(destination, settings) {

				

				if (arguments.length == 1 && typeof destination !== "string") {

					settings = destination;

					destination = false;

				}



        // initialize defaults

        var defaults = {

            name: "formatCurrency",

            //useHtml: false,

            //useHtmlOnDestination: false,

            colorize: false,

            region: '',

            global: true

        };

        // initialize default region

        defaults = $.extend(defaults, $.formatCurrency.regions['']);

        // override defaults with settings passed in

        settings = $.extend(defaults, settings);

        

        // check for region setting

        if (settings.region.length > 0)

        {

        	settings = $.extend(settings, getRegionOrCulture(settings.region));

        }



        return this.each(function() {

            $this = $(this);



						// get number

            var num = '0';

            num = $this[$this.is('input, select, textarea') ? 'val' : 'html']();

						

						// clean number

            var trimRegex = new RegExp("[^\\d" + settings.decimalSymbol + "-]", "g");

            num = num.replace(trimRegex, '');

						if (settings.decimalSymbol != '.')

							num = num.replace(settings.decimalSymbol, '.');  // reset to US decimal for arthmetic

            if (isNaN(num)) num = '0';



						// format number

            var isPositive = (num == (num = Math.abs(num)));

            // removed to always round down 

            // num = Math.floor(num * 100 + 0.50000000001)

            num = Math.floor(num * 100);

            var cents = num % 100;

            num = Math.floor(num / 100).toString();



            if (cents < 10) cents = '0' + cents;



            if (settings.groupDigits) {

                for (var i = 0; i < Math.floor((num.length - (1 + i)) / 3); i++) {

                    num = num.substring(0, num.length - (4 * i + 3)) + settings.digitGroupSymbol + num.substring(num.length - (4 * i + 3));

                }

            }

            if (!settings.dropDecimals){

  				num = num + settings.decimalSymbol + cents;

			}



						// format symbol/negative

            var format = isPositive ? settings.positiveFormat : settings.negativeFormat;

            var money = format.replace(/%s/g, settings.symbol)

            money = money.replace(/%n/g, num);



						// setup destination

						if (!destination)

						{

							//settings.useHtmlOnDestination = settings.useHtml;

							destination = $this;

						}

						else

						{

							destination = $(destination);

						}

						// set destination

            //destination[settings.useHtmlOnDestination ? 'html' : 'val'](money);

            destination[destination.is('input, select, textarea') ? 'val' : 'html'](money);

            

            // colorize

            if (settings.colorize)

            	destination.css('color', isPositive ? 'black' : 'red');

        });

    };



    // Remove all non numbers from text

    $.fn.toNumber = function(settings) {

        var defaults = $.extend({

            name: "toNumber",

            region: '',

            global: true

        }, $.formatCurrency.regions['']);

        

        settings = jQuery.extend(defaults, settings);

        if (settings.region.length > 0)

        {

        	settings = $.extend(settings, getRegionOrCulture(settings.region));

        }



        return this.each(function() {

            var method = $(this).is('input, select, textarea') ? 'val' : 'html';

            var trimRegex = new RegExp("[^\\d" + settings.decimalSymbol + "-]", "g");

            $(this)[method]($(this)[method]().replace(trimRegex, ''));

        });

    };



    // returns the value from the first element as a number

    $.fn.asNumber = function(settings) {

        var defaults = $.extend({

            name: "asNumber",

            region: '',

            parse: true,

            parseType: 'Float',

            global: true

        }, $.formatCurrency.regions['']);

        settings = jQuery.extend(defaults, settings);

				if (settings.region.length > 0)

        {

        	settings = $.extend(settings, getRegionOrCulture(settings.region));

        }



				settings.parseType = validateParseType(settings.parseType);



        var method = $(this).is('input, select, textarea') ? 'val' : 'html';

        var trimRegex = new RegExp("[^\\d" + settings.decimalSymbol + "-]", "g");

        var num = $(this)[method]().replace(trimRegex, '');

        if (!settings.parse)

            return num;



				if (num.length == 0)

					num = '0';

					

				if (settings.decimalSymbol != '.')

						num = num.replace(settings.decimalSymbol, '.');  // reset to US decimal for arthmetic

						

        return window['parse' + settings.parseType](num);

    };



		function getRegionOrCulture(region) {

			var regionInfo = $.formatCurrency.regions[region];

			if (regionInfo) {

				return regionInfo;

			}

			else {

				if (/(\w+)-(\w+)/g.test(region))

				{

					var culture = region.replace(/(\w+)-(\w+)/g, "$1");

					return $.formatCurrency.regions[culture];

				}

			}

			// fallback to extend(null) (i.e. nothing)

			return null;

		}



		function validateParseType(parseType) {

			switch(parseType.toLowerCase())

			{

				case 'int':

					return 'Int';

				case 'float':

					return 'Float';

				default:	

					throw 'invalid parseType';

			}

		}



})(jQuery);