(function () {
  "use strict";


  angular.module('app.service')
    .factory('attribute', ['$filter', function ($filter) {
      
      var helpers = {
        'numeric': {
          toNative: function (data, value) {
            if (null == data || null == data.numericValue && null == value) return null;
            value = null == value ? data.numericValue : value;
            return parseFloat(value);
          },
          toText: function (data, value) {
            if (null == data || null == data.numericValue && null == value) return null;
            value = null == value ? data.numericValue : value;
            return parseFloat(value).toFixed(data.decimalRound || 0);
          },
          toAPI: function (data, value) {
            var result = helpers.numeric.toNative(data, value);
            return result;
          }
        },
        
        'text': {
          toNative: function (data, value) {
            if (null == data || null == data.textValue && null == value) return null;
            value = null == value ? data.textValue : value;
            return '' + value;
          },
          toText: function (data, value) {
            if (null == data || null == data.textValue && null == value) return null;
            value = null == value ? data.textValue : value;
            return '' + value;
          },
          toAPI: function (data, value) {
            var result = helpers.text.toNative(data, value);
            return result;
          }
        },

        'datetime': {
          toNative: function (data, value) {
            if (null == data || null == data.datetimeValue && null == value) return null;
            value = null == value ? data.datetimeValue : value;
            return value instanceof Date ? value : new Date(value); 
          },
          toText: function (data, value) {
            if (null == data || null == data.datetimeValue && null == value) return null;
            value = null == value ? data.datetimeValue : value;
            value = value instanceof Date ? value : new Date(value);
            return $filter('date')(value, data.datetimeOutputFormatJs || 'yyyy-MM-dd');
          },
          toAPI: function (data, value) {
            var result = helpers.datetime.toNative(data, value);
            return null == result ? result : $filter('date')(result, 'yyyy-MM-dd');
          }
        }
      };

      return {
        toNative: function (data, value) {
          return data.dataType in helpers ? helpers[data.dataType].toNative(data, value) : undefined;
        },

        toText: function (data, value) {
          return data.dataType in helpers ? helpers[data.dataType].toText(data, value) : undefined;
        },

        toAPI: function (data, value) {
           return data.dataType in helpers ? helpers[data.dataType].toAPI(data, value) : undefined;
        }
    };


    }]);

})();