/*
 * Copyright 2018 Medozs and/or its affiliates
 * and other contributors as indicated by the @author tags.
 *
 * 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.
 */

import { Injectable } from "@angular/core";
import {
  HttpRequest,
  HttpHandler,
  HttpEvent,
  HttpInterceptor
} from "@angular/common/http";
import { Observable } from "rxjs/Observable";
import { KeycloakService } from "./keycloak.service";

@Injectable()
export class KeycloakInterceptor implements HttpInterceptor {

  constructor(
    private _keycloadService: KeycloakService
  ) { }

  intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {

    const token = `Bearer ${this._keycloadService.getToken()}`;
    req = req.clone({
      setHeaders: {
        Authorization: token,
        "Content-Type": "application/json"
      }
    });
    return next.handle(req);
  }
}