(function (ng) {
    angular.module('search')
        .factory('SearchService', ['$http', function ($http) {
            var Search = function (searchObject) {
                this.search = searchObject.search;
                this.pageSize = searchObject.pageSize;
                this.siteSections = searchObject.siteSections;
                this.includeDocuments = searchObject.includeDocuments;
                this.dateFrom = searchObject.dateFrom;
                this.dateTo = searchObject.dateTo;
                this.pageNumber = 1;
                this.resultsCount = 0;
                this.pagedResultsCount = 0;
                this.results = [];
                this.busy = false;
                this.isSearchExhausted = function () {
                    return (this.pagedResultsCount == this.resultsCount) && this.resultsCount > 0;
                };
            };

            Search.prototype.nextPage = function () {
                if (this.busy || this.isSearchExhausted()) {
                    return;
                }

                this.busy = true;

                // Maps to our Web API search dto
                var searchDto = angular.toJson({
                    Search: this.search,
                    SectionIds: this.siteSections != null ? this.siteSections : [],
                    PageNumber: this.pageNumber,
                    PageSize: this.pageSize,
                    DateFrom: getDate(this.dateFrom),
                    DateTo: getDate(this.dateTo),
                    IncludeDocuments: this.includeDocuments,
                });

                $http({ cache: false, dataType: 'json', url: "/api/cms/PostSearchQuery", method: 'POST', data: searchDto })
                    .success(function (data) {
                        this.resultsCount = data.Count;
                        var items = data.Results;
                        for (var i = 0; i < items.length; i++) {
                            this.results.push(items[i]);
                        }
                        this.pagedResultsCount = this.pagedResultsCount + items.length;
                        this.pageNumber = this.pageNumber + 1;
                        this.busy = false;
                    }.bind(this));

            };

            return {
                GetInstance: function (searchData) {
                    return new Search(searchData);
                }
            };

            function getDate(date) {
                if (date instanceof Date) {
                    return date.toDateString();
                }

                return "";
            }

        }]);
})(angular);