syntax = "proto3";
package storagegroup;
option go_package = "github.com/nspcc-dev/neofs-api-go/storagegroup";
option csharp_namespace = "NeoFS.API.StorageGroup";

import "refs/types.proto";

message StorageGroup {
    // ValidationDataSize is size of the all object's payloads included into storage group
    uint64 ValidationDataSize = 1;
    // ValidationHash is homomorphic hash of all object's payloads included into storage group
    bytes ValidationHash = 2;

    message Lifetime {
        enum Unit {
            // Unlimited set if storage group always valid
            Unlimited = 0;
            // NeoFSEpoch set if storage group is valid until lifetime NeoFS epoch
            NeoFSEpoch = 1;
            // UnixTime set if storage group is valid until lifetime unix timestamp
            UnixTime = 2;
        }

        // Unit is lifetime type
        Unit unit = 1;
        // Value for lifetime
        int64 Value = 2;
    }

    // Lifetime is time until storage group is valid
    Lifetime lifetime = 3;

    // Members carries the list of identifiers of the object storage group members.
    // The list is strictly ordered.
    repeated refs.ObjectID Members = 4;
}