import "google/protobuf/descriptor.proto";

package NMonProto;

option java_package = "ru.yandex.monlib.proto";
option java_outer_classname = "MetricMetaProto";

enum EMetricType {
    GAUGE = 1;
    RATE = 2;
}

enum EMemOnly {
    DEFAULT = 0;
    STORE = 1;
    MEM_ONLY = 2;
}

message TMetricMeta {
    optional EMetricType Type = 1;
    optional bool Path = 2;
    optional string Keys = 3;
    optional bool MemOnly = 4;
    optional bool IgnorePath = 5;
    optional string CustomPath = 6;
}

enum THistogramBase {
    MICROSECOND = 3;
    MILLISECOND = 6;
    SECOND      = 9;
    MINUTE      = 12;
    HOUR        = 15;
}

message THistogramEntry {
    optional uint64 Multiplier = 1;
    optional double Value = 2;
}

message THistogram {
    optional THistogramBase Base = 1;
    optional string BaseStr = 2;
    repeated THistogramEntry Entries = 5;
}

// field of this type is recognized by Solomon
message TExtraLabelMetrics {
    optional string labelName = 1;

    message TValue {
        optional string labelValue = 1;
        // used only if != 0
        optional uint64 labelValueUint = 21;

        optional uint64 longValue = 2;
        optional double doubleValue = 3;
        optional THistogram histogramValue = 4;

        optional EMetricType type = 7;
        optional EMemOnly memOnly = 8;
        optional bool dropHost = 9;

        repeated TExtraLabelMetrics children = 17;
    }

    repeated TValue values = 2;
}

extend google.protobuf.FieldOptions {
    optional TMetricMeta Metric = 1719;
}