import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;

public class Database {
    
    private Connection connection; 

    public Database() {
        try {
            Class.forName("org.mariadb.jdbc.Driver");

            this.connection = DriverManager.getConnection(
                "jdbc:mariadb://dwarves.iut-fbleau.fr/baudrier",
                "baudrier",
                "baudrier"
            );
        } catch(ClassNotFoundException exception) {
            System.err.println("Class 'org.mariadb.jdbc.Driver' not found.");
        } catch(SQLException exception) {
            System.err.println("Error while trying to connect to the database");
        }
    }

    public Champ[] getAllData() {
        PreparedStatement query = this.connection.prepareStatement("SELECT id, code FROM Champ");
        ResultSet result = query.executeQuery();

        while(result.next()) {
            query = this.connection.prepareStatement("SELECT code FROM Modules WHERE champId = " + result.getInt("id"));
        }
    } 

    public void close() {
        try {
            this.connection.close();
        } catch(SQLException exception) {
            System.err.println("Error while trying to close the connection.");
        }
    }
}