# Copyright 2022-2024 ETSI OSG/SDG TeraFlowSDN (TFS) (https://tfs.etsi.org/)
#
# 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.


import logging, grpc

from common.proto.context_pb2                 import Empty
from common.method_wrappers.Decorator         import MetricsPool, safe_and_metered_rpc_method

from common.proto.analytics_frontend_pb2      import Analyzer, AnalyzerId, AnalyzerFilter, AnalyzerList
from common.proto.analytics_frontend_pb2_grpc import AnalyticsFrontendServiceServicer


LOGGER       = logging.getLogger(__name__)
METRICS_POOL = MetricsPool('AnalyticsFrontend', 'NBIgRPC')


class AnalyticsFrontendServiceServicerImpl(AnalyticsFrontendServiceServicer):
    def __init__(self):
        LOGGER.info('Init AnalyticsFrontendService')


    @safe_and_metered_rpc_method(METRICS_POOL, LOGGER)
    def StartAnalyzer(self, 
                       request : Analyzer, grpc_context: grpc.ServicerContext # type: ignore
                      ) -> AnalyzerId: # type: ignore
        LOGGER.info ("At Service gRPC message: {:}".format(request))
        response = AnalyzerId()

        return response
    
    @safe_and_metered_rpc_method(METRICS_POOL, LOGGER)
    def StopAnalyzer(self, 
                      request : AnalyzerId, grpc_context: grpc.ServicerContext # type: ignore
                     ) -> Empty:  # type: ignore
        LOGGER.info ("At Service gRPC message: {:}".format(request))

        return Empty()
    
    @safe_and_metered_rpc_method(METRICS_POOL, LOGGER)
    def SelectAnalyzers(self, 
                         request : AnalyzerFilter, contextgrpc_context: grpc.ServicerContext # type: ignore
                        ) -> AnalyzerList:  # type: ignore
        LOGGER.info("At Service gRPC message: {:}".format(request))
        response = AnalyzerList()

        return response