terranodo/angular-search

/*eslint angular/di: [2,"array"]*/
(function() {
    angular
    .module('search_legendhistogram_component', [])
    .directive('legendHistogram', ['searchFilter', 'DateTimeService',
        function(searchFilter, DateTimeService) {
            return {
                templateUrl: 'components/histogram/legend.tpl.html',
                restrict: 'EA',
                link: legendHistogramLink,
                scope: {
                    dimensions: '='
                }
            };

            function legendHistogramLink(scope) {

                var vm = scope;

                vm.$watch(function(){
                    return vm.dimensions;
                }, function(){
                    if (Object.keys(vm.dimensions).length !== 0) {
                        timeBar(vm.dimensions);
                    }
                });

                function timeBar(dimensions) {
                    vm.legendList = [];
                    var countsLength = dimensions.counts.length;
                    var partition = 5;
                    partition = partition > countsLength ? countsLength : partition;
                    var delta = countsLength/partition;
                    for (var i = 0; i < partition; i++) {
                        var index = Math.round(i*delta);
                        var date = moment(dimensions.counts[index].value).utc();
                        vm.legendList.push(date.format(
                            DateTimeService.getDurationFormatFromGap(searchFilter.gap).format
                        ));
                    }
                    vm.legendWidth = (dimensions.histogrambarsWidth - dimensions.paddingBar*2)/vm.legendList.length;
                    vm.paddingBar = dimensions.paddingBar;
                }
            }
        }]);
})();