SQL

public class SqlConnection {

	private Connection connection;
    private String urlbase,host,database,user,pass;

    public SqlConnection(String urlbase, String host, String database, String user, String pass) {
        this.urlbase = urlbase;
        this.host = host;
        this.database = database;
        this.user = user;
        this.pass = pass;
    }


	public void connection(){
        if(!isConnected()){
            try {
                connection = DriverManager.getConnection(urlbase + host + "/" + database, user, pass);
                System.out.println("SQL --> ON !");
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }

    public void disconnect(){
        if(isConnected()){
            try {
                connection.close();
                System.out.println("SQL --> OFF !");
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }

    public boolean isConnected(){
        return connection != null;
    }

    public void createAccount(Player player){
        if(!hasAccount(player)){

            try {
                PreparedStatement q = connection.prepareStatement("INSERT INTO joueurs(uuid,coins,rank) VALUES (?,?,?)");
                q.setString(1, player.getUniqueId().toString());
                q.setInt(2, 100);
                q.setInt(3, Rank.JOUEUR.getPower());
                q.execute();
                q.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }


        }
    }

    public boolean hasAccount(Player player){
        try {
            PreparedStatement q = connection.prepareStatement("SELECT uuid FROM joueurs WHERE uuid = ?");
            q.setString(1, player.getUniqueId().toString());
            ResultSet resultat = q.executeQuery();
            boolean hasAccount = resultat.next();
            q.close();
            return hasAccount;
        } catch (SQLException e) {
            e.printStackTrace();
        }

        return false;
    }

    public int getBalance(Player player){
        try {
            PreparedStatement q = connection.prepareStatement("SELECT coins FROM joueurs WHERE uuid = ?");
            q.setString(1, player.getUniqueId().toString());

            int balance = 0;
            ResultSet rs = q.executeQuery();

            while(rs.next()){
                balance = rs.getInt("coins");
            }

            q.close();

            return balance;

        } catch (SQLException e) {
            e.printStackTrace();
        }

        return 0;
    }

    public void addMoney(Player player,int amount){
        int balance = getBalance(player);
        int newbalance = balance + amount;

        try {
            PreparedStatement rs = connection.prepareStatement("UPDATE joueurs SET coins = ? WHERE uuid = ?");
            rs.setInt(1, newbalance);
            rs.setString(2, player.getUniqueId().toString());
            rs.executeUpdate();
            rs.close();

        } catch (SQLException e) {
            e.printStackTrace();
        }

    }

    public void removeMoney(Player player,int amount){
    	int balance = getBalance(player);
        int newbalance = balance - amount;

        if(newbalance <= 0){
            return;
        }

        try {
            PreparedStatement rs = connection.prepareStatement("UPDATE joueurs SET coins = ? WHERE uuid = ?");
            rs.setInt(1, newbalance);
            rs.setString(2, player.getUniqueId().toString());
            rs.executeUpdate();
            rs.close();

        } catch (SQLException e) {
            e.printStackTrace();
        }

    }

    public void setRank(Player player, Rank rank){

        try {
            PreparedStatement rs = connection.prepareStatement("UPDATE joueurs SET rank = ? WHERE uuid = ?");
            rs.setInt(1, rank.getPower());
            rs.setString(2, player.getUniqueId().toString());
            rs.executeUpdate();
            rs.close();

        } catch (SQLException e) {
            e.printStackTrace();
        }

    }

    public Rank getRank(Player player){


        try {
            PreparedStatement q = connection.prepareStatement("SELECT rank FROM joueurs WHERE uuid = ?");
            q.setString(1, player.getUniqueId().toString());

            int power = 0;
            ResultSet rs = q.executeQuery();

            while(rs.next()){
                power = rs.getInt("rank");
            }

            q.close();

            return Rank.powerToRank(power);

        } catch (SQLException e) {
            e.printStackTrace();
        }

        return Rank.JOUEUR;
    }

}