package com.onap.sdnc.vnfconfigcomparsion.service;

import java.util.ArrayList;
import java.util.List;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.onap.sdnc.vnfcomparsion.dao.VnfComparisonRepository;
import com.onap.sdnc.vnfconfigcomparsion.model.VnfCompareResponse;
import com.onap.sdnc.vnfconfigcomparsion.model.VnfConfigDetailsDB;
import com.onap.sdnc.vnfconfigcomparsion.model.VnfDetails;

@Service
public class VnfComparisonService {

	private static final Logger logger = LogManager.getLogger(VnfComparisonService.class);

	@Autowired
	VnfComparisonRepository vnfComparisonRepository;

	//Returns vnfconfig details if at list 2 and at most 4 versions selected.
	public VnfCompareResponse getConfigurationDeatils(JSONObject vnfVersionNames, String vnfId) {
		VnfCompareResponse vnfCompareResponse = new VnfCompareResponse();
		List<VnfDetails> vnfDetailsList = new ArrayList<VnfDetails>();
		VnfDetails vnfDetails = null;
		try {
			JSONArray vnfIdArray = vnfVersionNames.getJSONArray("versionNames");
			if (vnfIdArray.length() >= 2 && vnfIdArray.length() <= 4) {
				for (int i = 0; i < vnfIdArray.length(); i++) {
					
						VnfConfigDetailsDB vnfconfigdetails = vnfComparisonRepository
								.getVnfDetails(vnfIdArray.get(i).toString(), vnfId);
						vnfDetails = new VnfDetails();
						vnfDetails.setVnfDeatils(vnfconfigdetails.getConfiginfo());
						vnfDetails.setVnfId(vnfconfigdetails.getVnfid());
						vnfDetails.setVnfversion(vnfconfigdetails.getVnfversion());
						vnfDetailsList.add(vnfDetails);
						logger.debug("Versions : " + vnfIdArray.get(i));
				}
			}/*else {
				throw new RuntimeException("At list 2 and at most 4 versions need to be selected");
			}*/
		} catch (JSONException jSONException1) {
			
			logger.debug("JSONException occered " + jSONException1);
			
		}
		vnfCompareResponse.setVnfDetails(vnfDetailsList);
		return vnfCompareResponse;
	}

	//Returns vnfconfig details for any version.
	public VnfCompareResponse getConfigDeatilsByVnfIdVnfVersion(JSONObject vnfVersionNames, String vnfId) {
		VnfCompareResponse vnfCompareResponse = new VnfCompareResponse();
		List<VnfDetails> vnfDetailsList = new ArrayList<VnfDetails>();
		VnfDetails vnfDetails = null;
		try {
			JSONArray vnfIdArray = vnfVersionNames.getJSONArray("versionNames");
			for (int i = 0; i < vnfIdArray.length(); i++) {
				VnfConfigDetailsDB vnfconfigdetails = vnfComparisonRepository
						.getVnfDetails(vnfIdArray.get(i).toString(), vnfId);
				vnfDetails = new VnfDetails();
				vnfDetails.setVnfDeatils(vnfconfigdetails.getConfiginfo());
				vnfDetails.setVnfId(vnfconfigdetails.getVnfid());
				vnfDetails.setVnfversion(vnfconfigdetails.getVnfversion());
				vnfDetailsList.add(vnfDetails);
				logger.debug("Versions : " + vnfIdArray.get(i));
			}
		} catch (JSONException jSONException2) {

			logger.debug("JSONException occered " + jSONException2);
		}
		vnfCompareResponse.setVnfDetails(vnfDetailsList);
		return vnfCompareResponse;
	}
	
	//Returns backup vnf details according to vnf id.
	public List<VnfConfigDetailsDB> getConfigurationDeatils(String vnfId) {
		List<VnfConfigDetailsDB> vnfconfigdetails = vnfComparisonRepository.getVnfDetailsByVnfID(vnfId);
		return vnfconfigdetails;
	}

	//Returns all backup vnf details.
	public List<VnfConfigDetailsDB> getAllBackupVnfIds() {
		List<VnfConfigDetailsDB> vnfconfigdetails = vnfComparisonRepository.findvnfidvnfname();
		
		return vnfconfigdetails;
	}

}