/*
* @ngdoc fbChangeTrack
* @name fasit.directives.#fbChangeTrack
* @fbChangeTrack
*
* @description
* Directive som hanterar changetrack i en fbmodel. Sätter dirty och valid. Hanterar även valid på ett fält
*/


// OBS! fb-change-track ska inte migreras till angular! Prata med frha om du är osäker på hur detta ska migreras 
fbDeprecatedFile('fbChangeTrack');


angular.module('fasit')
    .directive('fbChangeTrack', [function () {
        'use strict';

        var link = function (scope: fb.IFbChangeTrackScope, element: fb.IRootElementService, attrs: any, ngModel: ng.INgModelController, transclude) {
            fbDeprecated('fbChangeTrack');
            scope.$watch('ngModel', function (newVal, oldVal) {

                if (typeof scope.track === 'undefined' || scope.track === null || typeof scope.track !== 'object') {
                    return;
                }


                var changed = newVal !== oldVal;
                if (changed && !(newVal === "" && oldVal === null)) {
                    if (scope.track.root && scope.track.root.applyValue) {
                        scope.track.root.applyValue(scope.track);
                    } else {
                        /* tslint:disable */
                        scope.track.dirty = scope.track.originalValue != scope.track.value; // jshint ignore:line
                        /* tslint:enable */
                        scope.track.valid = fb.changeTrackValid(scope.track);
                        var isNull = scope.track ? (scope.track.value === null) : true;
                        var isEmpty = scope.track ? (scope.track.value === '') : true;
                        var isUndefined = scope.track ? (scope.track.value === undefined) : true;

                        (<any>scope.track).missValue = isNull || isEmpty || isUndefined;

                    }

                }
            }, true);
        };

        return {
            restrict: 'A',
            require: '?ngModel',
            scope: {
                ngModel: '=',
                track: '=',
            },
            link: link,
        };

    }]);