[#482] reputation/router: Move router to ./common

Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>

pkg/services/reputation/common/router/deps.go

@@ -0,0 +1,42 @@
+package router
+
+import (
+	"github.com/nspcc-dev/neofs-node/pkg/services/reputation"
+	"github.com/nspcc-dev/neofs-node/pkg/services/reputation/common"
+)
+
+// ServerInfo describes a set of
+// characteristics of a point in a route.
+type ServerInfo interface {
+	// PublicKey returns public key of the node
+	// from the route in a binary representation.
+	PublicKey() []byte
+
+	// Returns network address of the node
+	// in the route.
+	//
+	// Can be empty.
+	Address() string
+}
+
+// Builder groups methods to route values in the network.
+type Builder interface {
+	// NextStage must return next group of route points
+	// for passed epoch and trust values.
+	// Implementation must take into account already passed route points.
+	//
+	// Empty passed list means being at the starting point of the route.
+	//
+	// Must return empty list and no error if the endpoint of the route is reached.
+	NextStage(epoch uint64, t reputation.Trust, passed []ServerInfo) ([]ServerInfo, error)
+}
+
+// RemoteWriterProvider describes the component
+// for sending values to a fixed route point.
+type RemoteWriterProvider interface {
+	// InitRemote must return WriterProvider to the route point
+	// corresponding to info.
+	//
+	// Nil info matches the end of the route.
+	InitRemote(info ServerInfo) (common.WriterProvider, error)
+}