/**
 * Copyright 2017 ZTE Corporation.
 *
 * 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 org.onap.holmes.rulemgt.msb;


import org.apache.http.HttpResponse;
import org.jvnet.hk2.annotations.Service;
import org.onap.holmes.common.api.entity.ServiceEntity;
import org.onap.holmes.common.api.entity.ServiceNode4Query;
import org.onap.holmes.common.config.MicroServiceConfig;
import org.onap.holmes.common.utils.GsonUtil;
import org.onap.holmes.common.utils.HttpsUtils;

import javax.annotation.PostConstruct;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

@Service
public class EngineIpList {

    private String[] msbAddrInfo;
    private String ip;
    private String port;
    private String url;

    @PostConstruct
    public void init(){
        msbAddrInfo = MicroServiceConfig.getMsbIpAndPort();
        ip = msbAddrInfo[0];
        port = msbAddrInfo[1];
        url = "http://" + ip + ":" + port + "/api/microservices/v1/services/holmes-engine-mgmt/version/v1" ;
    }

    public List<String> getServiceCount()throws Exception{
        String response;
        try {
            HttpResponse httpResponse = HttpsUtils
                    .get(url, new HashMap<>());
            response = HttpsUtils.extractResponseEntity(httpResponse);
        } catch (Exception e) {
            throw e;
        }
        ServiceEntity service = GsonUtil.jsonToBean(response, ServiceEntity.class);
        List<ServiceNode4Query> nodesList = service.getNodes();
        List<String> ipList = new ArrayList<>();
        for(ServiceNode4Query node : nodesList){
            ipList.add(node.getIp());
        }
        return ipList;

    }

}