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+/**
+ * ============LICENSE_START========================================================================
+ * ONAP : ccsdk feature sdnr wt odlux
+ * =================================================================================================
+ * Copyright (C) 2019 highstreet technologies GmbH Intellectual Property. All rights reserved.
+ * =================================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ * ============LICENSE_END==========================================================================
+ */
+import * as $ from 'jquery';
+import { Action, IActionHandler } from '../flux/action';
+import { MiddlewareArg } from '../flux/middleware';
+import { Dispatch } from '../flux/store';
+
+import { IApplicationStoreState } from '../store/applicationStore';
+import { AddErrorInfoAction, ErrorInfo } from '../actions/errorActions';
+import { PlainObject, AjaxParameter } from 'models/restService';
+
+export const absoluteUri = /^(https?:\/\/|blob:)/i;
+export const baseUrl = `${ window.location.origin }${ window.location.pathname }`;
+
+class RestBaseAction extends Action { }
+
+export const createRestApiAccessor = <TResult extends PlainObject>(urlOrPath: string, initialValue: TResult) => {
+ const isLocalRequest = !absoluteUri.test(urlOrPath);
+ const uri = isLocalRequest ? `${ baseUrl }/${ urlOrPath }`.replace(/\/{2,}/, '/') : urlOrPath ;
+
+ class RestRequestAction extends RestBaseAction { constructor(public settings?: AjaxParameter) { super(); } }
+
+ class RestResponseAction extends RestBaseAction { constructor(public result: TResult) { super(); } }
+
+ class RestErrorAction extends RestBaseAction { constructor(public error?: Error | string) { super(); } }
+
+ type RestAction = RestRequestAction | RestResponseAction | RestErrorAction;
+
+ /** Represents our middleware to handle rest backend requests */
+ const restMiddleware = (api: MiddlewareArg<IApplicationStoreState>) =>
+ (next: Dispatch) => (action: RestAction): RestAction => {
+
+ // pass all actions through by default
+ next(action);
+ // handle the RestRequestAction
+ if (action instanceof RestRequestAction) {
+ const state = api.getState();
+ const authHeader = isLocalRequest && state && state.framework.authenticationState.user && state.framework.authenticationState.user.token
+ ? { "Authentication": "Bearer " + state.framework.authenticationState.user.token } : { };
+ $.ajax({
+ url: uri,
+ method: (action.settings && action.settings.method) || "GET",
+ headers: { ...authHeader, ...(action.settings && action.settings.headers ? action.settings.headers : { }) },
+ }).then((data: TResult) => {
+ next(new RestResponseAction(data));
+ }).catch((err: any) => {
+ next(new RestErrorAction());
+ next(new AddErrorInfoAction((err instanceof Error) ? { error: err } : { message: err.toString() }));
+ });
+ }
+ // allways return action
+ return action;
+ };
+
+ /** Represents our action handler to handle our actions */
+ const restActionHandler: IActionHandler<TResult> = (state = initialValue, action) => {
+ if (action instanceof RestRequestAction) {
+ return {
+ ...(state as any),
+ busy: true
+ };
+ } else if (action instanceof RestResponseAction) {
+ return action.result;
+ } else if (action instanceof RestErrorAction) {
+ return initialValue;
+ }
+ return state;
+ };
+
+ return {
+ requestAction: RestRequestAction,
+ actionHandler: restActionHandler,
+ middleware: restMiddleware,
+ };
+}
+
+
+