RequiredBasedOnValue.py

"""
Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
SPDX-License-Identifier: MIT-0
"""

from cfnlint.rules.resources.properties.BasedOnValue import BasedOnValue


class RequiredBasedOnValue(BasedOnValue):
    """Check Required Properties are supplied when another property has a certain value"""

    id = "E3017"
    shortdesc = "Property is required based on another properties value"
    description = (
        "When certain properties have a certain value it results in other properties being required. "
        "This rule will validate those required properties are specified when those values are supplied"
    )
    tags = ["resources"]
    spec_type = "RequiredProperties"
    message = "should be specified"

    def _check_prop(self, prop, scenario):
        return prop not in scenario.get("Object")