// Copyright 2021-2023 H2020 TeraFlow (https://www.teraflow-h2020.eu/)
//
// 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.

//Example of topology
syntax = "proto3";
package dlt;

import "context.proto";

service DltService {
  rpc RecordToDlt ( DltRecord ) returns ( RecordStatus ) {}
  rpc GetFromDlt ( DltRecordId ) returns ( DltRecord ) {}
  rpc SubscribeToDlt ( DltRecordSubscription ) returns ( stream DltRecord ) {}
  rpc GetDltStatus ( context.Empty ) returns ( DltStatus ) {}
}

message DltRecordSubscription {
  DltRecordType type = 1;
  DltRecordOperation operation = 2;
}

enum DltRecordType {
  UNKNOWN = 0;
  SERVICE = 1;
  DEVICE = 2;
  SLICE = 3;
}

enum DltRecordOperation {
  ADD = 0;
  UPDATE = 1;
  DELETE = 2;
}

message DltRecord {
  DltRecordId id = 1;
  DltRecordType type = 2;  
  DltRecordOperation operation = 3;
  string json = 4;
}

message DltRecordId {
  context.Uuid id = 1;
}

message RecordStatus {
  DltRecordId id = 1;
  DltRecordStatusEnum status = 2;
}

enum DltRecordStatusEnum {
  REQUESTED = 0;
  STORED = 1;
  DISABLED = 2;
}


message DltStatus {
  context.TeraFlowController ctl = 1;
  DltStatusEnum status = 2;
}

enum DltStatusEnum {
  NOT_AVAILABLE = 0;
  INITIALIZED = 1;
  AVAILABLE = 2;
  DEINIT = 3;
}