package org.leolo.rail;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Types;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.zip.GZIPInputStream;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.json.JSONObject;
import org.leolo.rail.util.TUIDDateFormat;

public class AssoicationProcessor extends BaseProcessor implements Runnable {

	private File targetFile;
	private Logger log = LogManager.getLogger(AssoicationProcessor.class);
	
	public AssoicationProcessor(File targetFile) {
		this.targetFile = targetFile;
	}
	
	@Override
	public void run() {
		log.atInfo().log("Processing {}", targetFile.getName());
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
		TUIDDateFormat tdf = new TUIDDateFormat();
		try(
				BufferedReader br = new BufferedReader(new InputStreamReader(new GZIPInputStream(new FileInputStream(targetFile))));
				Connection conn = DatabaseManager.getInstance().getConnection();
				PreparedStatement pstmt = conn.prepareStatement("REPLACE INTO ltp_assoication VALUES(?,?,?,?,?,?,?,?,?,?,?,?)")
		){
			while(true) {
				String line = br.readLine();
				if(line==null) {
					break;
				}
				JSONObject obj = new JSONObject(line);
				String mainTrainUID = obj.optString("main_train_uid");
				String assocTrainUID = obj.optString("assoc_train_uid");
				java.sql.Date startDate, endDate;
				try {
					startDate =  new java.sql.Date(sdf.parse(obj.optString("assoc_start_date")).getTime());
					endDate =  new java.sql.Date(sdf.parse(obj.optString("assoc_end_date")).getTime());
				} catch (ParseException e1) {
					log.warn("Unable to parse date! {}", e1.getMessage(), e1);
					continue;
				}
				String assoc_days = obj.optString("assoc_days");
				String assoc_type = obj.optString("category");
				String location = obj.optString("location");
				String base_suffix = obj.optString("base_location_suffix");
				String assoc_suffix = obj.optString("assoc_location_suffix");
				String stp_ind = obj.optString("CIF_stp_indicator");
				String auid = mainTrainUID + assocTrainUID + location + tdf.format(startDate) + tdf.format(endDate)+stp_ind;
				int hashCode = (auid+assoc_type+assoc_days).hashCode();
				setString(pstmt, 1, auid);
				setString(pstmt, 2, mainTrainUID);
				setString(pstmt, 3, assocTrainUID);
				pstmt.setDate(4, startDate);
				pstmt.setDate(5, endDate);
				setString(pstmt, 6, assoc_days);
				setString(pstmt, 7, assoc_type);
				setString(pstmt, 8, location);
				setString(pstmt, 9, base_suffix);
				setString(pstmt, 10, assoc_suffix);
				setString(pstmt, 11, stp_ind);
				pstmt.setInt(12, hashCode);
				pstmt.addBatch();
			}
			pstmt.executeBatch();
			conn.commit();
		} catch (FileNotFoundException e) {
			log.error(e.getMessage(), e);
		} catch (IOException e) {
			log.error(e.getMessage(), e);
		} catch (SQLException e) {
			log.error(e.getMessage(), e);
		}
		if(!targetFile.delete()) {
			log.warn("Unable to delete {}", targetFile.getName());
		}
	}

}