add missing shard.go

wakuv2/shard.go

@@ -0,0 +1,59 @@
+package wakuv2
+
+import (
+	wakuproto "github.com/waku-org/go-waku/waku/v2/protocol"
+
+	"github.com/status-im/status-go/protocol/protobuf"
+)
+
+type Shard struct {
+	Cluster uint16 `json:"cluster"`
+	Index   uint16 `json:"index"`
+}
+
+func FromProtobuff(p *protobuf.Shard) *Shard {
+	if p == nil {
+		return nil
+	}
+
+	return &Shard{
+		Cluster: uint16(p.Cluster),
+		Index:   uint16(p.Index),
+	}
+}
+
+func (s *Shard) Protobuffer() *protobuf.Shard {
+	if s == nil {
+		return nil
+	}
+
+	return &protobuf.Shard{
+		Cluster: int32(s.Cluster),
+		Index:   int32(s.Index),
+	}
+}
+func (s *Shard) PubsubTopic() string {
+	if s != nil {
+		return wakuproto.NewStaticShardingPubsubTopic(s.Cluster, s.Index).String()
+	}
+	return ""
+}
+
+const MainStatusShardCluster = 16
+const DefaultShardIndex = 32
+const NonProtectedShardIndex = 64
+
+func DefaultShardPubsubTopic() string {
+	return wakuproto.NewStaticShardingPubsubTopic(MainStatusShardCluster, DefaultShardIndex).String()
+}
+
+func DefaultNonProtectedShard() *Shard {
+	return &Shard{
+		Cluster: MainStatusShardCluster,
+		Index:   NonProtectedShardIndex,
+	}
+}
+
+func DefaultNonProtectedPubsubTopic() string {
+	return DefaultNonProtectedShard().PubsubTopic()
+}