/**
    *       Copyright 2010 Newcastle University
    *
    *          http://research.ncl.ac.uk/smart/
    *
    * Licensed to the Apache Software Foundation (ASF) under one or more
    * contributor license agreements.  See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * The ASF licenses this file to You 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.
   */
  
  package org.apache.amber.oauth2.client.demo.controller;
  
  import java.io.IOException;
  import javax.servlet.http.HttpServletResponse;
  
  import org.apache.amber.oauth2.client.demo.Utils;
  import org.apache.amber.oauth2.client.demo.model.OAuthRegParams;
  import org.apache.amber.oauth2.common.exception.OAuthSystemException;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.apache.amber.oauth2.client.demo.model.OAuthParams;
  import org.springframework.stereotype.Controller;
  import org.springframework.web.bind.annotation.ModelAttribute;
  import org.springframework.web.bind.annotation.PathVariable;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.servlet.ModelAndView;
  
  
  /**
   *
   *
   *
   */
  @Controller
  @RequestMapping("/")
  public class MainController {
  
      private Logger logger = LoggerFactory.getLogger(MainController.class);
  
      @RequestMapping("/index")
      public ModelAndView authorize(@ModelAttribute("oauthParams") OAuthParams oauthParams)
          throws OAuthSystemException, IOException {
          return new ModelAndView("index");
      }
  
      @RequestMapping("/main/{app}")
      public ModelAndView authorize(@ModelAttribute("oauthParams") OAuthParams oauthParams,
                                    @ModelAttribute("oauthRegParams") OAuthRegParams oauthRegParams,
                                    @PathVariable("app") String app,
                                    HttpServletResponse res)
          throws OAuthSystemException, IOException {
  
          boolean selected = false;
          if (Utils.GENERIC.equals(app)) {
              selected = true;
          }else if (Utils.GITHUB.equals(app)) {
              selected = true;
              oauthParams.setAuthzEndpoint(Utils.GITHUB_AUTHZ);
              oauthParams.setTokenEndpoint(Utils.GITHUB_TOKEN);
  
          } else if (Utils.FACEBOOK.equals(app)) {
              selected = true;
              oauthParams.setAuthzEndpoint(Utils.FACEBOOK_AUTHZ);
              oauthParams.setTokenEndpoint(Utils.FACEBOOK_TOKEN);
          }else if (Utils.GOOGLE.equals(app)) {
                  selected = true;
                  oauthParams.setAuthzEndpoint(Utils.GOOGLE_AUTHZ);
                  oauthParams.setTokenEndpoint(Utils.GOOGLE_TOKEN);
          } else if (Utils.GOWALLA.equals(app)) {
              selected = true;
              oauthParams.setAuthzEndpoint(Utils.GOWALLA_AUTHZ);
              oauthParams.setTokenEndpoint(Utils.GOWALLA_TOKEN);
          } else if (Utils.SMART_GALLERY.equals(app)) {
              selected = true;
              oauthRegParams.setAuthzEndpoint(Utils.SMART_GALLERY_AUTHZ);
              oauthRegParams.setTokenEndpoint(Utils.SMART_GALLERY_TOKEN);
              oauthRegParams.setRegistrationEndpoint(Utils.SMART_GALLERY_REGISTER);
              oauthRegParams.setApplication(app);
              oauthRegParams.setRedirectUri(Utils.REDIRECT_URI);
              return new ModelAndView("register");
          }
          if (selected) {
              oauthParams.setApplication(app);
              oauthParams.setRedirectUri(Utils.REDIRECT_URI);
              return new ModelAndView("get_authz");
          }
  
          return new ModelAndView("index");
     }
 }