# Copyright (c) Facebook, Inc. and its affiliates.

# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.

from __future__ import absolute_import, division, print_function, unicode_literals

from wadebug import results
from wadebug.wa_actions.base import WAAction
from wadebug.wa_actions.mysql_utils import MySQLUtil


class CheckMySQLConnection(WAAction):
    user_facing_name = "check_mysql_connection"
    short_description = "Test if MySQL database can be connected"
    config_dependencies = ("db.host", "db.port", "db.user", "db.password")

    @classmethod
    def _run(cls, config, *args, **kwargs):
        try:
            mysql_utils = MySQLUtil(**config.get("db"))
            mysql_utils.try_connect()
            return results.OK(cls)
        except Exception as e:
            return results.Problem(cls, "Unable to connect to db.", e, "")