(function () {
    'use strict';

    var serviceId = 'calendarDataContext';
    angular.module('calendar').factory(serviceId, ['$q', '$http', 'config', '$modal', datacontext]);


    function datacontext($q, $http, config, $modal) {

        var service = {
            getCalendars: getCalendars,
            getCalendarByOrgId: getCalendarByOrgId,
            createCalendar: createCalendar,
            createCalendarEvent: createCalendarEvent,
            updateCalendarEvent: updateCalendarEvent,
            deleteCalendarEvent: deleteCalendarEvent,
            createo365Event: createo365Event
        };

        return service;

        function handleError(response) {

            // The API response from the server should be returned in a
            // nomralized format. However, if the request was not handled by the
            // server (or what not handles properly - ex. server error), then we
            // may have to normalize it on our end, as best we can.
            if (
                !angular.isObject(response.data) ||
                !response.data.message
            ) {

                return ($q.reject("An unknown error occurred."));
            }

            // Otherwise, use expected error message.
            return ($q.reject(response.data.message));
        }


        // I transform the successful response, unwrapping the application data
        // from the API response payload.
        function handleSuccess(response) {
            return (response.data);
        }

        function getCalendars() {
            var request = $http({
                method: "get",
                url: config.calendarUrl + "api/calendarsmanager/"
            });

            return (request.then(handleSuccess, handleError));
        }


        function getCalendarByOrgId(orgId) {
            var request = $http({
                method: "get",
                url: config.calendarUrl + "api/calendarsmanager/org/" + orgId
            });

            return (request.then(handleSuccess, handleError));
        }

        function createCalendar(calendar) {
            var request = $http({
                method: "post",
                url: config.calendarUrl + "api/calendarsmanager",
                data: calendar
            });

            return (request.then(handleSuccess, handleError));
        }
        
        function createCalendarEvent(event) {
            var request = $http({
                method: "post",
                url: config.calendarUrl + "api/calendarevents",
                data: event
            });

            return (request.then(handleSuccess, handleError));
        }

        function updateCalendarEvent(event) {
            var request = $http({
                method: "put",
                url: config.calendarUrl + "api/calendarevents/" + event.id,
                data: event
            });

            return (request.then(handleSuccess, handleError));
        }

        function deleteCalendarEvent(event) {
            var request = $http({
                method: "delete",
                url: config.calendarUrl + "api/calendarevents/" + event.id,
                data: event
            });

            return (request.then(handleSuccess, handleError));
        }

        function createo365Event(event) {
            var request = $http({
                method: "post",
                url: "https://mkm-playground.azurewebsites.net/api/CreateEvent?code=hvXkb13AtVj/1q65MNQ8adXVwa0SV9qasi55nO/PNT5IQVfIRZdrWQ==",
                data: event
            });

            return (request.then(handleSuccess, handleError));
        }

    }
})();