"""
Copyright (c) Contributors to the Open 3D Engine Project.
For complete copyright and license terms please see the LICENSE at the root of this distribution.

SPDX-License-Identifier: Apache-2.0 OR MIT
"""
import boto3
import logging

logger = logging.getLogger(__name__)
logging.getLogger('boto3').setLevel(logging.WARNING)
logging.getLogger('botocore').setLevel(logging.WARNING)
logging.getLogger('nose').setLevel(logging.WARNING)


class AwsUtils:

    def __init__(self, arn: str, session_name: str, region_name: str):
        local_session = boto3.Session()
        local_sts_client = local_session.client('sts')
        self._local_account_id = local_sts_client.get_caller_identity()["Account"]
        logger.info(f'Local Account Id: {self._local_account_id}')

        response = local_sts_client.assume_role(RoleArn=arn, RoleSessionName=session_name)

        self._assume_session = boto3.Session(aws_access_key_id=response['Credentials']['AccessKeyId'],
                                             aws_secret_access_key=response['Credentials']['SecretAccessKey'],
                                             aws_session_token=response['Credentials']['SessionToken'],
                                             region_name=region_name)

        assume_sts_client = self._assume_session.client('sts')
        assume_account_id = assume_sts_client.get_caller_identity()["Account"]
        logger.info(f'Assume Account Id: {assume_account_id}')
        self._assume_account_id = assume_account_id

    def client(self, service: str):
        """
        Get the client for a specific AWS service from configured session
        :return: Client for the AWS service.
        """
        return self._assume_session.client(service)

    def resource(self, service: str):
        """
        Get the resource for a specific AWS service from configured session
        :return: Client for the AWS service.
        """
        return self._assume_session.resource(service)

    def assume_session(self):
        return self._assume_session

    def local_account_id(self):
        return self._local_account_id

    def assume_account_id(self):
        return self._assume_account_id

    def destroy(self) -> None:
        """
        clears stored session
        """
        self._assume_session = None