import os

from models.database import Database

class Utils:
    @staticmethod
    def clear_screen():
        os.system('cls' if os.name == 'nt' else 'clear')

    @staticmethod
    def export_db(file):
        with open(f"./{file}", 'w') as f:
            for line in Database.connection.iterdump():
                f.write('%s\n' % line)

    @staticmethod
    def import_db(file):
        with open(f"./{file}", 'r') as f:
            str = f.read()
            Database.connection.executescript(str)