(function () {
    'use strict';

    var serviceId = 'dashboardDataContext';
    angular.module('dashboard').factory(serviceId, ['$q', '$http', 'dashboardConfig', '$modal', datacontext]);


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

        var service = {
            getWorkflowDeploymentsForMe: getWorkflowDeploymentsForMe,
            getWorkflowDeploymentsForOthers: getWorkflowDeploymentsForOthers,
            getWorkflowStage: getWorkflowStage,
            signalWorkflowStage: signalWorkflowStage
        };

        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 getWorkflowDeploymentsForMe() {
            var request = $http({
                method: "get",
                url: config.workflowUrl + 'workflowdeployment/forme',
            });

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

        function getWorkflowDeploymentsForOthers() {
            var request = $http({
                method: "get",
                url: config.workflowUrl + 'workflowdeployment/forothers',
            });

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

        function getWorkflowStage(deploymentId, forId, stageId) {
            var request = $http({
                method: "get",
                url: config.workflowUrl + `workflowdeployment/${deploymentId}/for/${forId}/stage/${stageId}`,
            });

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

        function signalWorkflowStage(deploymentId, forId, signal) {
            var request = $http({
                method: "get",
                url: config.workflowUrl + `workflowinstance/${deploymentId}/${forId}/signal/${signal}`,
            });

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

    }

})();