/*
 * Copyright 2014 NAVER Corp.
 *
 * 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.navercorp.pinpoint.web.view;

import com.navercorp.pinpoint.web.applicationmap.ServerInstance;
import com.navercorp.pinpoint.web.applicationmap.ServerInstanceList;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.navercorp.pinpoint.web.applicationmap.link.LinkInfo;
import com.navercorp.pinpoint.web.applicationmap.link.MatcherGroup;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.io.IOException;
import java.util.List;
import java.util.Map;

/**
 * @author emeroad
 * @author minwoo.jung
 */
@Component
public class ServerInstanceListSerializer extends JsonSerializer<ServerInstanceList> {

    @Autowired(required=false)
    private List<MatcherGroup> matcherGroupList;

    @Override
    public void serialize(ServerInstanceList serverInstanceList, JsonGenerator jgen, SerializerProvider provider) throws IOException, JsonProcessingException {

        jgen.writeStartObject();

        Map<String,List<ServerInstance>> map = serverInstanceList.getServerInstanceList();
        for (Map.Entry<String, List<ServerInstance>> entry : map.entrySet()) {
            jgen.writeFieldName(entry.getKey());
            jgen.writeStartObject();

            jgen.writeStringField("name", entry.getKey());
            jgen.writeStringField("status", null);

            if (matcherGroupList != null) {
                jgen.writeFieldName("linkList");
                jgen.writeStartArray();
                
                for (MatcherGroup matcherGroup : matcherGroupList) {
                    if (matcherGroup.ismatchingType(entry.getValue().get(0))) {
                        LinkInfo linkInfo = matcherGroup.makeLinkInfo(entry.getValue().get(0));
                        jgen.writeStartObject();
                        jgen.writeStringField("linkName", linkInfo.getLinkName());
                        jgen.writeStringField("linkURL", linkInfo.getLinkUrl());
                        jgen.writeStringField("linkType", linkInfo.getLinktype());
                        jgen.writeEndObject();
                    }
                }
                
                jgen.writeEndArray();
            }
            
            jgen.writeFieldName("instanceList");
            writeInstanceList(jgen, entry.getValue());

            jgen.writeEndObject();
        }


        jgen.writeEndObject();

    }

    private void writeInstanceList(JsonGenerator jgen, List<ServerInstance> serverList) throws IOException {
        jgen.writeStartObject();
        for (ServerInstance serverInstance : serverList) {
            jgen.writeFieldName(serverInstance.getName());
            jgen.writeObject(serverInstance);
        }

        jgen.writeEndObject();
    }

}