# Copyright 2022-2023 ETSI TeraFlowSDN - TFS OSG (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.

from flask_restful import Resource, request
from common.proto.context_pb2 import Empty
from context.client.ContextClient import ContextClient
from service.client.ServiceClient import ServiceClient
from .Tools import (
    format_grpc_to_json, grpc_connection_id, grpc_context_id, grpc_device_id, grpc_link_id, grpc_policy_rule_id,
    grpc_service_id, grpc_service, grpc_slice_id, grpc_topology_id)

class _Resource(Resource):
    def __init__(self) -> None:
        super().__init__()
        self.client = ContextClient()
        self.service_client = ServiceClient()

class ContextIds(_Resource):
    def get(self):
        return format_grpc_to_json(self.client.ListContextIds(Empty()))

class Contexts(_Resource):
    def get(self):
        return format_grpc_to_json(self.client.ListContexts(Empty()))

class Context(_Resource):
    def get(self, context_uuid : str):
        return format_grpc_to_json(self.client.GetContext(grpc_context_id(context_uuid)))

class TopologyIds(_Resource):
    def get(self, context_uuid : str):
        return format_grpc_to_json(self.client.ListTopologyIds(grpc_context_id(context_uuid)))

class Topologies(_Resource):
    def get(self, context_uuid : str):
        return format_grpc_to_json(self.client.ListTopologies(grpc_context_id(context_uuid)))

class Topology(_Resource):
    def get(self, context_uuid : str, topology_uuid : str):
        return format_grpc_to_json(self.client.GetTopology(grpc_topology_id(context_uuid, topology_uuid)))

class ServiceIds(_Resource):
    def get(self, context_uuid : str):
        return format_grpc_to_json(self.client.ListServiceIds(grpc_context_id(context_uuid)))

class Services(_Resource):
    def get(self, context_uuid : str):
        return format_grpc_to_json(self.client.ListServices(grpc_context_id(context_uuid)))

class Service(_Resource):
    def get(self, context_uuid : str, service_uuid : str):
        return format_grpc_to_json(self.client.GetService(grpc_service_id(context_uuid, service_uuid)))

    def post(self, context_uuid : str, service_uuid : str):
        service = request.get_json()['services'][0]
        return format_grpc_to_json(self.service_client.CreateService(grpc_service(
            service_uuid = service['service_id']['service_uuid']['uuid'],
            service_type = service['service_type'],
            context_uuid = service['service_id']['context_id']['context_uuid']['uuid'],
        )))

    def put(self, context_uuid : str, service_uuid : str):
        service = request.get_json()['services'][0]
        return format_grpc_to_json(self.service_client.UpdateService(grpc_service(
            service_uuid = service['service_id']['service_uuid']['uuid'],
            service_type = service['service_type'],
            context_uuid = service['service_id']['context_id']['context_uuid']['uuid'],
            status       = service['service_status']['service_status'],
            endpoint_ids = service['service_endpoint_ids'],
            constraints  = service['service_constraints'],
            config_rules = service['service_config']['config_rules']
        )))

    def delete(self, context_uuid : str, service_uuid : str):
        return format_grpc_to_json(self.service_client.DeleteService(grpc_service_id(
            context_uuid, service_uuid,
        )))

class SliceIds(_Resource):
    def get(self, context_uuid : str):
        return format_grpc_to_json(self.client.ListSliceIds(grpc_context_id(context_uuid)))

class Slices(_Resource):
    def get(self, context_uuid : str):
        return format_grpc_to_json(self.client.ListSlices(grpc_context_id(context_uuid)))

class Slice(_Resource):
    def get(self, context_uuid : str, slice_uuid : str):
        return format_grpc_to_json(self.client.GetSlice(grpc_slice_id(context_uuid, slice_uuid)))

class DeviceIds(_Resource):
    def get(self):
        return format_grpc_to_json(self.client.ListDeviceIds(Empty()))

class Devices(_Resource):
    def get(self):
        return format_grpc_to_json(self.client.ListDevices(Empty()))

class Device(_Resource):
    def get(self, device_uuid : str):
        return format_grpc_to_json(self.client.GetDevice(grpc_device_id(device_uuid)))

class LinkIds(_Resource):
    def get(self):
        return format_grpc_to_json(self.client.ListLinkIds(Empty()))

class Links(_Resource):
    def get(self):
        return format_grpc_to_json(self.client.ListLinks(Empty()))

class Link(_Resource):
    def get(self, link_uuid : str):
        return format_grpc_to_json(self.client.GetLink(grpc_link_id(link_uuid)))

class ConnectionIds(_Resource):
    def get(self, context_uuid : str, service_uuid : str):
        return format_grpc_to_json(self.client.ListConnectionIds(grpc_service_id(context_uuid, service_uuid)))

class Connections(_Resource):
    def get(self, context_uuid : str, service_uuid : str):
        return format_grpc_to_json(self.client.ListConnections(grpc_service_id(context_uuid, service_uuid)))

class Connection(_Resource):
    def get(self, connection_uuid : str):
        return format_grpc_to_json(self.client.GetConnection(grpc_connection_id(connection_uuid)))

class PolicyRuleIds(_Resource):
    def get(self):
        return format_grpc_to_json(self.client.ListPolicyRuleIds(Empty()))

class PolicyRules(_Resource):
    def get(self):
        return format_grpc_to_json(self.client.ListPolicyRules(Empty()))

class PolicyRule(_Resource):
    def get(self, policy_rule_uuid : str):
        return format_grpc_to_json(self.client.GetPolicyRule(grpc_policy_rule_id(policy_rule_uuid)))
