syntax = "proto3";

package codemp.buffer;

service Buffer {
	rpc Attach (BufferPayload)    returns (stream RawOp);
	rpc Edit   (OperationRequest) returns (BufferEditResponse);
	rpc Create (BufferPayload)    returns (BufferCreateResponse);
	rpc Sync   (BufferPayload)    returns (BufferResponse);
}

message BufferCreateResponse {}
message BufferEditResponse {}

message RawOp {
	string opseq = 1;
	string user = 2;
}

message OperationRequest {
	string path  = 1;
	string hash  = 2;
	string opseq = 3;
	string user  = 4;
}

message BufferPayload {
	string path = 1;
	string user = 2;
	optional string content = 3;
}

message BufferResponse {
	string content = 2;
}