/*
    * 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.Transition;
  import com.google.common.collect.Lists;
  import org.codehaus.jettison.json.JSONException;
  import org.codehaus.jettison.json.JSONObject;
  
  import java.util.Collection;
  import java.util.Iterator;
  
  public class TransitionJsonParserV5 implements JsonObjectParser<Transition> {
      private final TransitionFieldJsonParser transitionFieldJsonParser = new TransitionFieldJsonParser();
  
      public Transition parse(JSONObject json) throws JSONException {
          final int id = json.getInt("id");
          final String name = json.getString("name");
          final JSONObject fieldsObj = json.getJSONObject("fields");
          final Iterator keys = fieldsObj.keys();
          final Collection<Transition.Field> fields = Lists.newArrayList();
          while (keys.hasNext()) {
              final String fieldId = keys.next().toString();
              fields.add(transitionFieldJsonParser.parse(fieldsObj.getJSONObject(fieldId), fieldId));
          }
          return new Transition(name, id, fields);
      }
  
      public static class TransitionFieldJsonParser {
          public Transition.Field parse(JSONObject json, final String id) throws JSONException {
              final boolean isRequired = json.getBoolean("required");
              final String type = json.getJSONObject("schema").getString("type");
              return new Transition.Field(id, isRequired, type);
          }
      }
  }