//
// To compile:
// protoc --proto_path=src/main/protobuf --java_out=src/main/java src/main/protobuf/kurapayload.proto
//
syntax = "proto2";

package kuradatatypes;

option java_package         = "org.eclipse.kura.core.message.protobuf";
option java_outer_classname = "KuraPayloadProto";

message KuraPayload {

	message KuraMetric {
		enum ValueType {  
			DOUBLE         = 0; 
			FLOAT          = 1;
			INT64          = 2;
			INT32          = 3;
			BOOL           = 4;
			STRING         = 5;
			BYTES          = 6;
		}
		  
		required string    name            = 1;
		required ValueType type            = 2;

		optional double double_value       = 3;
		optional float  float_value        = 4;
		optional int64  long_value         = 5;
		optional int32  int_value          = 6;
		optional bool   bool_value         = 7;
		optional string string_value       = 8;
		optional bytes  bytes_value        = 9;
	}

    message KuraPosition {
        required double latitude   = 1;
        required double longitude  = 2;
        optional double altitude   = 3;
        optional double precision  = 4;  // dilution of precision of the current satellite fix. 
        optional double heading    = 5;  // heading in degrees
        optional double speed      = 6;  // meters per second
        optional int64  timestamp  = 7;
        optional int32  satellites = 8;  // number satellites locked by the GPS device
        optional int32  status     = 9;  // status indicator for the GPS data: 1 = no GPS response; 2 = error in response; 4 = valid.
    }

    optional int64       timestamp = 1;
    optional KuraPosition position  = 2;
	
	extensions 3 to 4999;
    repeated KuraMetric   metric    = 5000;  // can be zero, so optional
 	optional bytes       body      = 5001;
}