/// Protobuf schema based on msg_format.h
///
/// @file
/// @author Steffen Vogel <post@steffenvogel.de>
/// @copyright 2014-2022, Institute for Automation of Complex Power Systems, EONERC
/// @license Apache 2.0
////////////////////////////////////////////////////////////////////////////////////

syntax = "proto2";

package villas.node;

message Message {
	repeated Sample samples = 1;
}

message Sample {
	enum Type {
		DATA = 1;				// Message contains float / integer data values
		START = 2;				// Message marks the beginning of a new simulation case
		STOP = 3;				// Message marks the end of a simulation case
	};

	required Type type = 1 [default = DATA];
	optional uint64 sequence = 2;			// The sequence number is incremented by one for consecutive messages.
	optional Timestamp timestamp = 4;
	repeated Value values = 5;
}

message Timestamp {
	required uint32 sec = 1;			// Seconds since 1970-01-01 00:00:00
	required uint32 nsec = 2;			// Nanoseconds of the current second.
}

message Value {
	oneof value {
		double f = 1;				// Floating point values.
		int64 i = 2;				// Integer values.
		bool b = 3;				// Boolean values.
		Complex z = 4;				// Complex values.
	}
}

message Complex {
	required float real = 1;			// Real component
	required float imag = 2;			// Imaginary component
}