# Copyright 2019 - Nokia
#
# 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
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from oslo_log import log

from vitrage.evaluator.template_functions import function_resolver
from vitrage.evaluator.template_functions import GET_PARAM
from vitrage.evaluator.template_validation.base import get_custom_fault_result
from vitrage.evaluator.template_validation.base import ValidationError
from vitrage.evaluator.template_validation.content.base import \
    get_content_correct_result
from vitrage.evaluator.template_validation.content.base import \
    get_template_schema


LOG = log.getLogger(__name__)


def resolve_parameters(template_def, params=None):
    result, template_schema = get_template_schema(template_def)
    if not result.is_valid_config:
        return result

    get_param = template_schema.functions.get(GET_PARAM)

    try:
        function_resolver.resolve_function(
            func_info=function_resolver.FuncInfo(
                name=GET_PARAM, func=get_param, error_code=0),
            template=template_def,
            actual_params=params)
    except ValidationError as e:
        return get_custom_fault_result(e.code, e.details)

    return get_content_correct_result()