# ######################################################################################################################
#  Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.                                                  #
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#  Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance      #
#  with the License. You may obtain a copy of the License at                                                           #
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#   http://www.apache.org/licenses/LICENSE-2.0                                                                         #
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#  Unless required by applicable law or agreed to in writing, software distributed under the License is distributed    #
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#  the specific language governing permissions and limitations under the License.                                      #
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"""
This module is a custom lambda for string manipulation to lower case
"""

from aws_lambda_powertools import Logger
from crhelper import CfnResource


logger = Logger(utc=True, service='transform-custom-lambda')
helper = CfnResource(log_level="ERROR", boto_level="ERROR")


def event_handler(event, context):
    """
    This is the Lambda custom resource entry point.
    """
    logger.info(event)
    helper(event, context)


@helper.create
@helper.update
def on_create_or_update(event, _) -> None:
    resource_properties = event["ResourceProperties"]
    input_string: str = resource_properties["input_string"]
    logger.info(f"Input string: {input_string}")
    helper.Data.update(
        {
            "output_string": input_string.lower()
        }
    )