import mariadb


def _create_tables(con: mariadb.Connection) -> None:
    cursor = con.cursor()
    cursor.execute(
        """CREATE TABLE IF NOT EXISTS master_pass (user_id INT,
                        salt BINARY(64),
                        passwd BINARY(64),
                        PRIMARY KEY(user_id)
                        )"""
    )
    cursor.execute(
        """CREATE TABLE IF NOT EXISTS accounts(user_id INT,
                        acc_name VARCHAR(255),
                        salt BINARY(64),
                        enc_login BINARY(64),
                        enc_pass BINARY(64),
                        UNIQUE(acc_name, user_id)
                        )"""
    )
    cursor.close()


def _create_index(con: mariadb.Connection) -> None:
    cursor = con.cursor()
    cursor.execute(
        """CREATE INDEX IF NOT EXISTS user_id_to_acc on accounts(user_id)
    """
    )


def prepare(con: mariadb.Connection) -> None:
    _create_tables(con)
    _create_index(con)