(function(){

    "use strict";

    angular
        .module("app.repositories")
        .factory("repository.approval", approvalRepository);

    function approvalRepository(webApi, dataTableConstant, queryParamsModels){

        return {
            getAllServices: getAllServices,
            getAllMoments: getAllMoments,
            getAllAssets: getAllAssets,
            getServicePreviewById: getServicePreviewById,
            removeAssetById: removeAssetById,
            approveServiceById: approveServiceById,
            rejectServiceById: rejectServiceById,
            approveMomentById: approveMomentById,
            rejectMomentById: rejectMomentById
        };

        function getAllServices(currentPage, searchQuery, careProviderId, startDate, endDate, approvalStatusId, orderParam){

            var queryParams = new queryParamsModels.ApprovalServicesFilter();

            queryParams.pageNumber = currentPage || dataTableConstant.CURRENT_PAGE;
            queryParams.pageSize = dataTableConstant.ITEMS_PER_PAGE;
            if (searchQuery) queryParams.searchQuery = searchQuery;
            if (careProviderId) queryParams.careProviderId = careProviderId;
            if (startDate) queryParams.startDate = startDate;
            if (endDate) queryParams.endDate = endDate;
            if (approvalStatusId || approvalStatusId == 0) queryParams.status = approvalStatusId;
            if (orderParam) queryParams.order = orderParam;

            queryParams = excludeNullable(queryParams);

            return webApi.getAllServices({
                before: [],
                after: queryParams
            })
        }

        /**
         * Get assets with applied filters.
         */
        function getAllAssets(currentPage, searchQuery, startDate, endDate, locationId, careProviderId, orderParam) {

            var queryParams = new queryParamsModels.ApprovalAssetsFilter();

            queryParams.pageNumber = currentPage || dataTableConstant.CURRENT_PAGE;
            queryParams.pageSize = dataTableConstant.ITEMS_PER_PAGE;
            if (searchQuery) queryParams.searchQuery = searchQuery;
            if (startDate) queryParams.startDate = startDate;
            if (endDate) queryParams.endDate = endDate;
            if (locationId) queryParams.locationId = locationId;
            if (careProviderId) queryParams.careProviderId = careProviderId;
            if (orderParam) queryParams.order = orderParam;

            queryParams = excludeNullable(queryParams);

            return webApi.getAllAssets({
                before: [],
                after: queryParams
            })

        }

        function getAllMoments(currentPage, searchQuery, careProviderId, startDate, endDate, approvalStatusId, orderParam){

            var queryParams = new queryParamsModels.ApprovalMomentsFilter();

            queryParams.pageNumber = currentPage || dataTableConstant.CURRENT_PAGE;
            queryParams.pageSize = dataTableConstant.ITEMS_PER_PAGE;
            if (searchQuery) queryParams.searchQuery = searchQuery;
            if (careProviderId) queryParams.careProviderId = careProviderId;
            if (startDate) queryParams.startDate = startDate;
            if (endDate) queryParams.endDate = endDate;
            if (approvalStatusId || approvalStatusId == 0) queryParams.status = approvalStatusId;
            if (orderParam) queryParams.order = orderParam;

            queryParams = excludeNullable(queryParams);

            return webApi.getAllMoments({
                before: [],
                after: queryParams
            })
        }
        
        function getServicePreviewById(id){
            return webApi.getServicePreviewById({
                "url": { "id": id }
            });
        }

        function removeAssetById(id){
            return webApi.removeAssetById({
                "url": { "id": id }
            });
        }

        function approveServiceById(id){
            return webApi.approveServiceById({
                "url": { id: id }
            });
        }

        function rejectServiceById(id, annotation){
            return webApi.rejectServiceById({
                "url": { id: id },
                "data": annotation
            });
        }

        function approveMomentById(id){
            return webApi.approveMomentById({
                "url": { id: id }
            });
        }

        function rejectMomentById(id, annotation){
            return webApi.rejectMomentById({
                "url": { id: id },
                "data": annotation
            });
        }

        /* Internal functionality */
        function excludeNullable(model) {
            var result = {};
            for (var key in model) {
                if (model.hasOwnProperty(key)) {
                    if (model[key] != null && model[key] != "") {
                        result[key] = model[key];
                    }
                }
            }
            return result;
        }


    }

    // IoC container.
    approvalRepository.$inject = [
        "webApi",
        "appConstant.dataTable",
        "appModels.queryParams"
    ];

})();