/*******************************************************************************
 *  ============LICENSE_START=======================================================
 *  slice-analysis-ms
 *  ================================================================================
 *   Copyright (C) 2020 Wipro Limited.
 *   ==============================================================================
 *     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.
 *     ============LICENSE_END=========================================================
 *
 *******************************************************************************/
package org.onap.slice.analysis.ms.configdb;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.onap.slice.analysis.ms.models.Configuration;
import org.onap.slice.analysis.ms.models.configdb.CellsModel;
import org.onap.slice.analysis.ms.models.configdb.NetworkFunctionModel;
import org.onap.slice.analysis.ms.restclients.ConfigDbRestClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.ParameterizedTypeReference;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Service;

/**
 * 
 *  Service for config db interfaces
 *
 */
@Service
public class ConfigDbInterfaceService implements IConfigDbService {

	@Autowired
	private ConfigDbRestClient restclient;
	private String configDbBaseUrl = Configuration.getInstance().getConfigDbService();

	/**
	 *  Fetches the current configuration of an S-NSSAI from config DB
	 */
	public Map<String, Integer> fetchCurrentConfigurationOfSlice(String snssai){
		Map<String,Integer> responseMap = null;
		String reqUrl=configDbBaseUrl+"/api/sdnc-config-db/v4/profile-config/"+snssai;

		ResponseEntity<Map<String,Integer>> response=restclient.sendGetRequest(reqUrl,new ParameterizedTypeReference<Map<String, Integer>>() {
		});
		responseMap=response.getBody();
		return responseMap;			
	}

	/**
	 *  Fetches the current configuration of RIC from config DB
	 */
	public Map<String,Map<String,Object>> fetchCurrentConfigurationOfRIC(String snssai){
		String reqUrl=configDbBaseUrl+"/api/sdnc-config-db/v4/slice-config/"+snssai;
		ResponseEntity<Map<String,Map<String,Object>>> response=restclient.sendGetRequest(reqUrl, new ParameterizedTypeReference<Map<String,Map<String,Object>>>() {
		});
		return response.getBody();
	}

	/**
	 *  Fetches all the network functions of an S-NSSAI from config DB
	 */
	public List<String> fetchNetworkFunctionsOfSnssai(String snssai){
		List<String> responseList=new ArrayList<>();
		String reqUrl=configDbBaseUrl+"/api/sdnc-config-db/v4/du-list/"+snssai;
		ResponseEntity<List<NetworkFunctionModel>> response=restclient.sendGetRequest(reqUrl, new ParameterizedTypeReference<List<NetworkFunctionModel>>() {
		});
		for(NetworkFunctionModel networkFn:response.getBody()) {
			responseList.add(networkFn.getgNBDUId());	
		}
		return responseList;
	}

	/**
	 *  Fetches the RICS of an S-NSSAI from config DB
	 */
	public Map<String, List<String>> fetchRICsOfSnssai(String snssai){
		Map<String,List<String>> responseMap=new HashMap<>();
		String reqUrl=configDbBaseUrl+"/api/sdnc-config-db/v4/du-cell-list/"+snssai;
		ResponseEntity<Map<String,List<CellsModel>>> response = restclient.sendGetRequest(reqUrl, new ParameterizedTypeReference<Map<String,List<CellsModel>>>() {
		});

		for (Map.Entry<String, List<CellsModel>> entry : response.getBody().entrySet()) {
			List<String> cellslist=new ArrayList<>();
			for(CellsModel cellmodel:entry.getValue()) {
				cellslist.add(cellmodel.getCellLocalId());
			}
			responseMap.put(entry.getKey(), cellslist);
		}
		return responseMap;
	}

	/**
	 *  Fetches the details of a service 
	 */
	public Map<String,String> fetchServiceDetails(String snssai){
		String reqUrl=configDbBaseUrl+"/api/sdnc-config-db/v4/subscriber-details/"+snssai;
		ResponseEntity<Map<String,String>> response=restclient.sendGetRequest(reqUrl, new ParameterizedTypeReference<Map<String,String>>() {
		});
		return response.getBody();
	}	

}