import java.sql.*;
import java.util.ArrayList;
import java.util.List;


public class BaseDeDonnees {

    private static final String URL  = "jdbc:mariadb://dwarves.iut-fbleau.fr/val";
    private static final String USER = "val";
    private static final String PASS = "vali";

    /** Connexion */
    public static Connection getConnexion() throws SQLException {
        try {
            Class.forName("org.mariadb.jdbc.Driver");
        } catch (ClassNotFoundException e) {
            System.out.println("Erreur : pilote MariaDB non trouvé !");
        }
        return DriverManager.getConnection(URL, USER, PASS);
    }

    /** Ajout d’un rappel (INSERT) */
    public static int ajouter(Rappel r) throws SQLException {
        String sql = "INSERT INTO rappel(titre, contenu, theme, rang) VALUES (?, ?, ?, ?)";
        Connection cnx = getConnexion();
        PreparedStatement pst = cnx.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);

        pst.setString(1, r.getTitre());
        pst.setString(2, r.getContenu());
        pst.setString(3, r.getTheme());
        pst.setInt(4, r.getRang());
        pst.executeUpdate();

        ResultSet rs = pst.getGeneratedKeys();
        int id = 0;
        if (rs.next()) {
            id = rs.getInt(1);
            r.setId(id);
        }

        rs.close();
        pst.close();
        cnx.close();
        return id;
    }

    /** Liste des rappels */
    public static List<Rappel> lister() throws SQLException {
        String sql = "SELECT id, titre, contenu, theme, rang FROM rappel ORDER BY rang ASC, id ASC";
        List<Rappel> res = new ArrayList<>();

        Connection cnx = getConnexion();
        PreparedStatement pst = cnx.prepareStatement(sql);
        ResultSet rs = pst.executeQuery();

        while (rs.next()) {
            Rappel r = new Rappel(
                rs.getInt("id"),
                rs.getString("titre"),
                rs.getString("contenu"),
                rs.getString("theme"),
                rs.getInt("rang")
            );
            res.add(r);
        }

        rs.close();
        pst.close();
        cnx.close();
        return res;
    }

    /** Modification d’un rappel (UPDATE) */
    public static int modifier(int id, Rappel r) throws SQLException {
        String sql = "UPDATE rappel SET titre=?, contenu=?, theme=?, rang=? WHERE id=?";
        Connection cnx = getConnexion();
        PreparedStatement pst = cnx.prepareStatement(sql);

        pst.setString(1, r.getTitre());
        pst.setString(2, r.getContenu());
        pst.setString(3, r.getTheme());
        pst.setInt(4, r.getRang());
        pst.setInt(5, id);

        int rows = pst.executeUpdate();

        pst.close();
        cnx.close();
        return rows;
    }

    /** Suppression d’un rappel (DELETE) */
    public static int supprimer(int id) throws SQLException {
        String sql = "DELETE FROM rappel WHERE id=?";
        Connection cnx = getConnexion();
        PreparedStatement pst = cnx.prepareStatement(sql);

        pst.setInt(1, id);
        int rows = pst.executeUpdate();

        pst.close();
        cnx.close();
        return rows;
    }
}