(function () {

    "use strict";

    angular.module("EnrApp")
           .filter("phoneNumber", function () {
               return function (input) {
                   if (!input) { return ""; }

                   var value = input.toString().trim().replace(/^\+/, "");

                   if (value.match(/[^0-9]/)) {
                       return input;
                   }

                   var country, city, number;

                   switch (value.length) {
                       case 10: // +1PPP####### -> C (PPP) ###-####
                           country = 1;
                           city = value.slice(0, 3);
                           number = value.slice(3);
                           break;

                       case 11: // +CPPP####### -> CCC (PP) ###-####
                           country = value[0];
                           city = value.slice(1, 4);
                           number = value.slice(4);
                           break;

                       case 12: // +CCCPP####### -> CCC (PP) ###-####
                           country = value.slice(0, 3);
                           city = value.slice(3, 5);
                           number = value.slice(5);
                           break;

                       default:
                           return input;
                   }

                   if (country == 1) {
                       country = "";
                   }

                   number = number.slice(0, 3) + "-" + number.slice(3);

                   return (country + " (" + city + ") " + number).trim();
               };
           });
}());