/**
 * jquery.numberformatter - Formatting/Parsing Numbers in jQuery
 * Written by Michael Abernethy (mike@abernethysoft.com)
 *
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * Date: 1/6/08
 *
 * @author Michael Abernethy
 * @version 1.0.0
 *
 *
 * This plugin can be used to format numbers as text and parse text as Numbers
 * Because we live in an international world, we cannot assume that everyone
 * uses "," to divide thousands, and "." as a decimal point.
 *
 * The format() function will take the text within any selector by calling
 * text() or val() on them, getting the String, and applying the specified format to it.
 * It will return the jQuery object
 *
 * The parse() function will take the text within any selector by calling text()
 * or val() on them, turning the String into a Number, and returning these
 * values in a Number array.
 * It WILL BREAK the jQuery chain, and return an Array of Numbers.
 *
 * The syntax for the formatting is:
 * 0 = Digit
 * # = Digit, zero shows as absent
 * . = Decimal separator
 * - = Negative sign
 * , = Grouping Separator
 * For example, a format of "#,###.00" and text of 4500.20 will
 * display as "4.500,20" with a locale of "de", and "4,500.20" with a locale of "us"
 *
 *
 * As of now, the only acceptable locales are 
 * United States -> "us"
 * Arab Emirates -> "ae"
 * Egypt -> "eg"
 * Israel -> "il"
 * Japan -> "jp"
 * South Korea -> "kr"
 * Thailand -> "th"
 * China -> "cn"
 * Hong Kong -> "hk"
 * Taiwan -> "tw"
 * Australia -> "au"
 * Canada -> "ca"
 * Great Britain -> "gb"
 * India -> "in"
 * Germany -> "de"
 * Vietnam -> "vn"
 * Spain -> "es"
 * Denmark -> "dk"
 * Austria -> "at"
 * Greece -> "gr"
 * Brazil -> "br"
 * Czech -> "cz"
 * France  -> "fr"
 * Finland -> "fi"
 * Russia -> "ru"
 * Sweden -> "se"
 * Switzerland -> "ch"
 * 
 * TODO
 * In Java Formatter, technically any character can be in the format, it just returns it, like "$#,###"
 * Separate positive and negative patterns separated by a ":" (e.g. use (#,###) for accounting)
 * More options may come in the future (currency, scientific notation, percent, etc.)
 **/
     
 (function(jQuery) {

     function FormatData(valid, dec, group, neg) {
       this.valid = valid;
       this.dec = dec;
       this.group = group;
       this.neg = neg;
     };

     function formatCodes(locale) {

         // default values
         var valid = "1234567890.,-";
         var dec = ".";
         var group = ",";
         var neg = "-";

         if (locale == "us" ||
             locale == "ae" ||
             locale == "eg" ||
             locale == "il" ||
             locale == "jp" ||
             locale == "sk" ||
             locale == "th" ||
             locale == "cn" ||
             locale == "hk" ||
             locale == "tw" ||
             locale == "au" ||
             locale == "ca" ||
             locale == "gb" ||
             locale == "in"
            )
         {
              valid = "1234567890.,-";
              dec = ".";
              group = ",";
         }

         else if (locale == "de" ||
             locale == "vn" ||
             locale == "es" ||
             locale == "dk" ||
             locale == "at" ||
             locale == "gr" ||
             locale == "br"
            )
         {
              valid = "1234567890.,-";
              dec = ",";
              group = ".";
         }
         else if (locale == "cz" ||
              locale == "fr" ||
             locale == "fi" ||
             locale == "ru" ||
             locale == "se"
            )
         {
              valid = "1234567890,- ";
              group = " ";
              dec = ",";
         }
         else if (locale == "ch")
          {
              valid = "1234567890.-'";
              group = "'";
              dec = ".";
          }
     
        return new FormatData(valid, dec, group, neg);

    };

 jQuery.formatNumber = function(number, options) {
     var options = jQuery.extend({},jQuery.fn.parse.defaults, options);
     var formatData = formatCodes(options.locale.toLowerCase());

     var valid = formatData.valid;
     var dec = formatData.dec;
     var group = formatData.group;
     var neg = formatData.neg;
     
     var numString = new String(number);
     numString = numString.replace(".",dec).replace("-",neg);
     return numString;
 };

 jQuery.fn.parse = function(options) {

     var options = jQuery.extend({},jQuery.fn.parse.defaults, options);

     var formatData = formatCodes(options.locale.toLowerCase());

     var valid = formatData.valid;
     var dec = formatData.dec;
     var group = formatData.group;
     var neg = formatData.neg;

     var array = [];
     this.each(function(){

         var text = new String(jQuery(this).text());
         if (jQuery(this).is(":input"))
            text = new String(jQuery(this).val());

         // now we need to convert it into a number
         var number = new Number(text.replace(group,'').replace(dec,".").replace(neg,"-"));
         array.push(number);
     });

     return array;
 };

 jQuery.fn.format = function(options) {

     var options = jQuery.extend({},jQuery.fn.format.defaults, options);
     
     var formatData = formatCodes(options.locale.toLowerCase());

     var valid = formatData.valid;
     var dec = formatData.dec;
     var group = formatData.group;
     var neg = formatData.neg;

     return this.each(function(){
         var text = new String(jQuery(this).text());
         if (jQuery(this).is(":input"))
            text = new String(jQuery(this).val());

         var isValid = true;
         // ensure only valid characters were entered
         for (var i=0; i<text.length; i++)
         {
            if (valid.indexOf(text.charAt(i))==-1)
                isValid = false;
         }
         if (isValid)
         {
             // now we need to convert it into a number
             var number = new Number(text.replace(group,'').replace(dec,".").replace(neg,"-"));
             var returnString = "";

             var decimalValue = number % 1;
             if (options.format.indexOf(".") > -1)
             {
                var decimalPortion = dec;
                var decimalFormat = options.format.substring(options.format.lastIndexOf(".")+1);
                var decimalString = new String(decimalValue.toFixed(decimalFormat.length));
                decimalString = decimalString.substring(decimalString.lastIndexOf(".")+1);
                for (var i=0; i<decimalFormat.length; i++)
                {
                   if (decimalFormat.charAt(i) == '#' && decimalString.charAt(i) != '0')
                   {
                      decimalPortion += decimalString.charAt(i);
                      break;
                   }
                   else if (decimalFormat.charAt(i) == "0")
                   {
                      decimalPortion += decimalString.charAt(i);
                   }
                }
                returnString += decimalPortion
             }
             else
                number = Math.round(number);

             var ones = Math.floor(number);
             var onePortion = "";
             if (ones == 0)
             {
                onePortion = "0";
             }
             else
             {
                // find how many digits are in the group
                var onesFormat = "";
                if (options.format.indexOf(".") == -1)
                   onesFormat = options.format;
                else
                   onesFormat = options.format.substring(0, options.format.indexOf("."));
                var oneText = new String(ones);
                var groupLength = 9999;
                if (onesFormat.lastIndexOf(",") != -1)
                    groupLength = onesFormat.length - onesFormat.lastIndexOf(",")-1;
                var groupCount = 0;
                for (var i=oneText.length-1; i>-1; i--)
                {
                  onePortion = oneText.charAt(i) + onePortion;

                  groupCount++;

                   if (groupCount == groupLength && i!=0)
                   {
                      onePortion = group + onePortion;
                      groupCount = 0;
                   }

                }
             }
             returnString = onePortion + returnString;

             if (number < 0)
                 returnString += neg;

         if (jQuery(this).is(":input"))
            jQuery(this).val(returnString);
         else
             jQuery(this).text(returnString);

         }


     });
 };
 
 jQuery.fn.parse.defaults = {
      locale: "us"
 };

 jQuery.fn.format.defaults = {
      format: "#,###.00",
      locale: "us"
 };

 
 })(jQuery);