syntax = "proto3";
package anytype;
option go_package = "/syncproto";

import "pkg/acl/aclchanges/aclpb/protos/aclchanges.proto";

message Message {
    Header header = 1;
    bytes data = 2;
}

message Header {
    bytes traceId = 1;
    uint64 requestId = 2;
    uint64 replyId = 3;
    MessageType type = 4;
    string debugInfo = 5;
}

enum MessageType {
    MessageTypeSystem = 0;
    MessageTypeSpace = 1;
    MessageTypeSync = 2;
    MessageTypeFile = 3;
}

message System {
    Handshake handshake = 1;
    Ping ping = 2;
    Ack ack = 3;

    message Handshake {
        string protocolVersion = 1;
    }
    message Ping {
        uint64 unixTime = 1;
    }
    message Ack {
        Error error = 2;
    }
    message Error {
        Code code = 1;
        string description = 2;

        enum Code {
            UNKNOWN = 0;
            UNSUPPORTED_PROTOCOL_VERSION = 10;
        }
    }
}