'use strict';
/** 
  * Password-check directive.
*/
app.directive('compareTo', function () {
    return {
        require: "ngModel",
        scope: {
            otherModelValue: "=compareTo"
        },
        link: function (scope, element, attributes, ngModel) {

            ngModel.$validators.compareTo = function (modelValue) {
                return modelValue == scope.otherModelValue;
            };

            scope.$watch("otherModelValue", function () {
                ngModel.$validate();
            });
        }
    };
});
app.directive('capitalize', function() {
    return {
        require: 'ngModel',
        link: function(scope, element, attrs, modelCtrl) {
            var capitalize = function(inputValue) {
                if (inputValue == undefined) inputValue = '';
                var capitalized = inputValue.toUpperCase();
                if (capitalized !== inputValue) {
                    modelCtrl.$setViewValue(capitalized);
                    modelCtrl.$render();
                }
                return capitalized;
            }
            modelCtrl.$parsers.push(capitalize);
            capitalize(scope[attrs.ngModel]); // capitalize initial value
        }
    };
});
app.directive('disallowSpaces', function() {
    return {
        restrict: 'A',

        link: function($scope, $element) {
            $element.bind('input', function() {
                $(this).val($(this).val().replace(/ /g, ''));
            });
        }
    };
});
app.filter('unique', function() {
    return function(collection, primaryKey, secondaryKey) { //optional secondary key
        var output = [],
            keys = [];

        angular.forEach(collection, function(item) {
            var key;
            secondaryKey === undefined ? key = item[primaryKey] : key = item[primaryKey][secondaryKey];

            if(keys.indexOf(key) === -1) {
                keys.push(key);
                output.push(item);
            }
        });

        return output;
    };
});