/*
    * Copyright (C) 2010 Atlassian
    *
    * 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.
   */
  
  package com.atlassian.jira.rest.client.internal.json;
  
  import com.atlassian.jira.rest.client.api.domain.BasicUser;
  import com.atlassian.jira.rest.client.api.domain.BasicWatchers;
  import com.atlassian.jira.rest.client.api.domain.Watchers;
  import org.codehaus.jettison.json.JSONException;
  import org.codehaus.jettison.json.JSONObject;
  
  import java.net.URI;
  import java.util.Collection;
  
  public class WatchersJsonParserBuilder {
  
      public static JsonObjectParser<Watchers> createWatchersParser() {
          return new JsonObjectParser<Watchers>() {
              private final BasicUserJsonParser userJsonParser = new BasicUserJsonParser();
  
              @Override
              public Watchers parse(JSONObject json) throws JSONException {
                  final Collection<BasicUser> watchers = JsonParseUtil.parseJsonArray(json
                          .getJSONArray("watchers"), userJsonParser);
                  return new Watchers(parseValueImpl(json), watchers);
              }
          };
      }
  
      public static JsonObjectParser<BasicWatchers> createBasicWatchersParser() {
          return new JsonObjectParser<BasicWatchers>() {
              @Override
              public BasicWatchers parse(JSONObject json) throws JSONException {
                  return parseValueImpl(json);
              }
          };
      }
  
  
      private static BasicWatchers parseValueImpl(JSONObject json) throws JSONException {
          final URI self = JsonParseUtil.getSelfUri(json);
          final boolean isWatching = json.getBoolean("isWatching");
          final int numWatchers = json.getInt("watchCount");
          return new BasicWatchers(self, isWatching, numWatchers);
      }
  
  }