// Copyright 2019 Google LLC
//
// 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
//
//     https://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.

package com.google.sps.servlets;

import com.google.appengine.api.users.UserService;
import com.google.appengine.api.users.UserServiceFactory;
import com.google.gson.Gson;
import com.google.gson.JsonObject;
import com.google.sps.util.UserHelper;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


@WebServlet("/user-status")
public class UserStatusServlet extends HttpServlet {

  // Response: returns some user information JSON from the current user's sign-in API profile.
  // Data: "isUserLoggedIn" : boolean
  @Override
  public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
    response.setContentType("application/json");

    JsonObject userInfo = new JsonObject();
    userInfo.addProperty("isUserLoggedIn", UserHelper.isUserLoggedIn());
    if (UserHelper.isUserLoggedIn()) {
        System.out.println("User is logged in");
        // other properties may be added in the future.
    }

    response.getWriter().println(userInfo.toString());
  }
}

@@ -1626,25 +1626,32 @@
 ln(%22
-User is logged
+Return user profile
  in
+fo
 %22);%0A

change system coment to reflect purpose