// -*- Protocol-Buffers -*-
//==============================================================================
/// @file variant.proto
/// @brief ProtoBuf message types for Picarro variant values
/// @author Tor Slettnes <tslettnes@picarro.com>
//==============================================================================

syntax = "proto3";

package picarro.variant;

import "google/protobuf/duration.proto";
import "google/protobuf/timestamp.proto";


// Container for a generic ("variant") value:
//   - one of the following basic types: boolean, signed/unsigned integer, real number, string, byte sequence
//   - one of the following well-known types: Timestamp, Duration
//   - one of the nested value containers below: ValueList, TaggedValueList, ValueMap

message Value {
    oneof value {
        // Scalar types
        bool value_bool  = 4;
        uint64 value_uint = 5;
        sint64 value_sint = 6;
        double value_real = 7;
        string value_string = 8;
        bytes value_bytes = 9;
        google.protobuf.Timestamp value_timestamp = 10;
        google.protobuf.Duration value_duration = 11;

        // Nested value containers
        ValueList value_list = 16;
        TaggedValueList value_tvlist = 17;
        KeyValueMap value_kvmap = 18;
    }
}

// A sequence of values.
message ValueList {
    repeated Value items = 1;
}


message TaggedValue {
    string tag = 1;
    Value value = 2;
}

message TaggedValueList {
    repeated TaggedValue items = 1;
}

message KeyValueMap
{
    map<string, Value> map = 1;
}