#
# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
# or more contributor license agreements. Licensed under the Elastic License 2.0;
# you may not use this file except in compliance with the Elastic License 2.0.
#
"""network_drive_client allows to call Network Drives and returns a connection object
    that can be used to fetch files from Network Drives.
"""
from smb.base import NotConnectedError, SMBTimeout
from smb.SMBConnection import SMBConnection
from .utils import retry

USE_NTLM_V2 = True
IS_DIRECT_TCP = True
SERVER_PORT = 445


class NetworkDrive:
    """Creates an SMB connection object to the Network Drives and returns the object
    """
    def __init__(self, config, logger):
        self.logger = logger
        self.client_machine_name = config.get_value("client_machine.name")
        self.server_name = config.get_value("network_drive.server_name")
        self.server_ip = config.get_value("network_drive.server_ip")
        self.domain = config.get_value("network_drive.domain")
        self.username = config.get_value("network_drive.username")
        self.password = config.get_value("network_drive.password")
        self.retry_count = int(config.get_value("retry_count"))

    @retry(exception_list=(NotConnectedError, SMBTimeout))
    def connect(self):
        """This method is used to connect with Network Drives.
        """
        smb_connection = SMBConnection(self.username, self.password, self.client_machine_name, self.server_name,
                                       self.domain, use_ntlm_v2=USE_NTLM_V2, is_direct_tcp=IS_DIRECT_TCP)
        try:
            response = smb_connection.connect(self.server_ip, SERVER_PORT)
            if response:
                return smb_connection
        except (NotConnectedError, SMBTimeout) as exception:
            raise exception
        except Exception as exception:
            self.logger.exception(
                f"Unknown error while connecting to Network Drives. Error: {exception}"
            )