syntax = "proto3";

// 整体封装的消息体
message RequestFrame {
  uint32 packet_id = 1;
  oneof body {
    AuthRequest auth_request = 2;
    RpcRequest rpc_request = 3;
  }
}

message ResponseFrame {
  uint32 packet_id = 1;
  oneof body {
    AuthReply auth_reply = 2;
    RpcReply rpc_reply = 3;
  }
}

message CastFrame {
  oneof body {
    Pub pub = 1;
    Command command = 2;
    Data data = 3;
    TaskEventStream event_stream = 4;
  }
}

// message定义

message AuthRequest {
  bytes uuid = 1;
  bytes username = 2;
  bytes salt = 3;
  bytes token = 4;
  int32 timestamp = 5;
}

message AuthReply {
  int32 code = 1;
  bytes payload = 2;
}

message Pub {
  bytes topic = 1;
  int32 qos = 2;
  bytes content = 3;
}

message Command {
  int32 command_type = 1;
  bytes command = 2;
}

message RpcRequest {
  bytes method = 1;
  bytes params = 2;
}

message RpcReply {
  oneof body {
    bytes result = 1;
    bytes error = 2;
  }
}

message Data {
  bytes route_key = 1;
  bytes metric = 2;
}

message TaskEventStream {
  int32 task_id = 1;
  bytes type = 2;
  bytes stream = 3;
}