package de.rvbiin.qbw.MySQL;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class MySQL {

	private String HOST = "";
	private String DATABASE = "";
	private String USER = "";
	private String PASSWORD = "";

		private Connection con;

		public MySQL(String host, String database, String user, String password) {
			this.HOST = host;
			this.DATABASE = database;
			this.USER = user;
			this.PASSWORD = password;

			connect();
		}

		private void connect() {

			try {
				con = DriverManager.getConnection("jdbc:mysql://" + HOST + ":3306/" + DATABASE + "?autoReconnect=true", USER, PASSWORD);
				System.out.println("[MySQL] Verbindung Hergestellt!");
			} catch (SQLException e) {

				System.out.println("[MySQL] Verbindung nicht Hergestellt! Fehler: "+ e.getMessage());


			}

		}

		public void close() {

			try {
				if(con != null) {
					con.close();
					System.out.println("[MySQL] Die Verbindung wurde aufgehoben!");
				}

			} catch (SQLException e) {
				System.out.println("[MySQL] Fehler beim Beenden! Fehler: "+ e.getMessage());
			}

		}

		public void update(String qry) {

			Statement st;
			try {
				st = con.createStatement();
				st.executeUpdate(qry);
				st.close();
			} catch (SQLException e) {
				connect();
				System.err.println(e);
			}


		}

		public ResultSet query(String qry) {
			ResultSet rs = null;

			try {
					Statement st = con.createStatement();
					rs = st.executeQuery(qry);
			} catch (SQLException e) {
				connect();
				System.err.println(e);
			}
			return rs;


		}

}