package connection;

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JOptionPane;

/**
 *
 * @author carlosrorato
 */
public class ConnectionFactory {


    private static String DRIVER;
    private static String URL;
    private static String USER;
    private static String PASS;

    public static void obterDadosBD() throws IOException{
        try {
            FileReader conf = new FileReader("config.txt");
            BufferedReader lerArq = new BufferedReader(conf);
            ConnectionFactory.DRIVER = lerArq.readLine();
            ConnectionFactory.URL = lerArq.readLine();
            ConnectionFactory.USER = lerArq.readLine();
            ConnectionFactory.PASS = lerArq.readLine();

        } catch (FileNotFoundException ex) {
            JOptionPane.showMessageDialog(null,"Erro ao abrir o arquivo config.txt");
        }

    }

    public static Connection getConnection(){

        try {
            try {
                obterDadosBD();
            } catch (IOException ex) {
                Logger.getLogger(ConnectionFactory.class.getName()).log(Level.SEVERE, null, ex);
            }
            Class.forName(DRIVER);

            return DriverManager.getConnection(URL,USER,PASS);

        } catch (ClassNotFoundException | SQLException ex) {
            throw new RuntimeException("Erro na conexão: ",ex);
        }
    }

    public static void closeConnection(Connection con){

            try {
                if(con!=null){
                    con.close();
                }
            } catch (SQLException ex) {
                Logger.getLogger(ConnectionFactory.class.getName()).log(Level.SEVERE, null, ex);
            }

    }

    public static void closeConnection(Connection con, PreparedStatement stmt){

            closeConnection(con);

            try {

                if(stmt!=null){
                    stmt.close();
                }

            } catch (SQLException ex) {
                Logger.getLogger(ConnectionFactory.class.getName()).log(Level.SEVERE, null, ex);
            }

    }

    public static void closeConnection(Connection con, PreparedStatement stmt, ResultSet rs){

            closeConnection(con,stmt);

            try {

               if(rs!=null){
                   rs.close();
               }

            } catch (SQLException ex) {
                Logger.getLogger(ConnectionFactory.class.getName()).log(Level.SEVERE, null, ex);
            }

    }


}