[#452] morph/event: Support reputationPut event

Signed-off-by: Alex Vanin <alexey@nspcc.ru>

pkg/morph/event/reputation/put.go

@@ -0,0 +1,68 @@
+package reputation
+
+import (
+	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
+	"github.com/nspcc-dev/neofs-node/pkg/morph/client"
+	"github.com/nspcc-dev/neofs-node/pkg/morph/event"
+	"github.com/nspcc-dev/neofs-node/pkg/services/reputation"
+	"github.com/pkg/errors"
+)
+
+// Put structure of reputation.reputationPut notification from
+// morph chain.
+type Put struct {
+	epoch  uint64
+	peerID reputation.PeerID
+	value  []byte
+}
+
+// MorphEvent implements Neo:Morph Event interface.
+func (Put) MorphEvent() {}
+
+// Epoch returns epoch value of reputation data.
+func (p Put) Epoch() uint64 {
+	return p.epoch
+}
+
+// PeerID returns peer id of reputation data.
+func (p Put) PeerID() reputation.PeerID {
+	return p.peerID
+}
+
+// Value returns reputation structure.
+func (p Put) Value() []byte {
+	return p.value // consider returning parsed structure
+}
+
+// ParsePut from notification into reputation event structure.
+func ParsePut(prms []stackitem.Item) (event.Event, error) {
+	var (
+		ev  Put
+		err error
+	)
+
+	if ln := len(prms); ln != 3 {
+		return nil, event.WrongNumberOfParameters(3, ln)
+	}
+
+	epoch, err := client.IntFromStackItem(prms[0])
+	if err != nil {
+		return nil, errors.Wrap(err, "could not get integer epoch number")
+	}
+
+	ev.epoch = uint64(epoch)
+
+	peerID, err := client.BytesFromStackItem(prms[1])
+	if err != nil {
+		return nil, errors.Wrap(err, "could not get peer ID value")
+	}
+
+	ev.peerID = reputation.PeerIDFromBytes(peerID)
+
+	ev.value, err = client.BytesFromStackItem(prms[2])
+	if err != nil {
+		return nil, errors.Wrap(err, "could not get reputation value")
+	}
+
+	return ev, nil
+}