syntax = "proto3";

package codemp.cursor;

service Cursor {
	rpc Moved  (CursorEvent)      returns (MovedResponse);
	rpc Listen (UserIdentity)     returns (stream CursorEvent);
}

message MovedResponse {}

message RowCol {
	int32 row = 1;
	int32 col = 2;
}

message CursorPosition {
	string buffer = 1;
	RowCol start = 2;
	RowCol end = 3;
}

message CursorEvent {
	string user = 1;
	CursorPosition position = 2;
}

message UserIdentity {
	string id = 1;
}