[#482] reputation/router: Make route pkg independent

Make route package independent from
controller package. Add common interfaces
to `./common` directory.

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

pkg/services/reputation/local/controller/calls.go

@@ -4,6 +4,7 @@ import (
 	"context"
 
 	"github.com/nspcc-dev/neofs-node/pkg/services/reputation"
+	"github.com/nspcc-dev/neofs-node/pkg/services/reputation/common"
 	"github.com/nspcc-dev/neofs-node/pkg/util/logger"
 	"github.com/pkg/errors"
 	"go.uber.org/zap"
@@ -47,7 +48,7 @@ type reportContext struct {
 
 	log *logger.Logger
 
-	ctx Context
+	ctx common.Context
 }
 
 type iteratorContext struct {

pkg/services/reputation/local/controller/controller.go

@@ -4,6 +4,8 @@ import (
 	"context"
 	"fmt"
 	"sync"
+
+	"github.com/nspcc-dev/neofs-node/pkg/services/reputation/common"
 )
 
 // Prm groups the required parameters of the Controller's constructor.
@@ -22,7 +24,7 @@ type Prm struct {
 	// trust to other nodes.
 	//
 	// Must not be nil.
-	LocalTrustTarget WriterProvider
+	LocalTrustTarget common.WriterProvider
 }
 
 // Controller represents main handler for starting

pkg/services/reputation/local/controller/deps.go

@@ -1,59 +1,10 @@
 package trustcontroller
 
 import (
-	"context"
-	"io"
-
 	"github.com/nspcc-dev/neofs-node/pkg/services/reputation"
+	"github.com/nspcc-dev/neofs-node/pkg/services/reputation/common"
 )
 
-// Context wraps stdlib context
-// with accompanying meta values.
-type Context interface {
-	context.Context
-
-	// Must return epoch number to select the values.
-	Epoch() uint64
-}
-
-// Writer describes the interface for storing reputation.Trust values.
-//
-// This interface is provided by both local storage
-// of values and remote (wrappers over the RPC).
-type Writer interface {
-	// Write performs a write operation of reputation.Trust value
-	// and returns any error encountered.
-	//
-	// All values after the Close call must be flushed to the
-	// physical target. Implementations can cache values before
-	// Close operation.
-	//
-	// Write must not be called after Close.
-	Write(reputation.Trust) error
-
-	// Close exits with method-providing Writer.
-	//
-	// All cached values must be flushed before
-	// the Close's return.
-	//
-	// Methods must not be called after Close.
-	io.Closer
-}
-
-// WriterProvider is a group of methods provided
-// by entity which generates keepers of
-// reputation.Trust values.
-type WriterProvider interface {
-	// InitWriter should return an initialized Writer.
-	//
-	// Initialization problems are reported via error.
-	// If no error was returned, then the Writer must not be nil.
-	//
-	// Implementations can have different logic for different
-	// contexts, so specific ones may document their own behavior.
-	InitWriter(Context) (Writer, error)
-}
-
 // Iterator is a group of methods provided by entity
 // which can iterate over a group of reputation.Trust values.
 type Iterator interface {
@@ -79,5 +30,5 @@ type IteratorProvider interface {
 	//
 	// Implementations can have different logic for different
 	// contexts, so specific ones may document their own behavior.
-	InitIterator(Context) (Iterator, error)
+	InitIterator(common.Context) (Iterator, error)
 }

pkg/services/reputation/local/controller/util.go

@@ -1,15 +1,17 @@
 package trustcontroller
 
+import "github.com/nspcc-dev/neofs-node/pkg/services/reputation/common"
+
 type storageWrapper struct {
-	w Writer
+	w common.Writer
 	i Iterator
 }
 
-func (s storageWrapper) InitIterator(Context) (Iterator, error) {
+func (s storageWrapper) InitIterator(common.Context) (Iterator, error) {
 	return s.i, nil
 }
 
-func (s storageWrapper) InitWriter(Context) (Writer, error) {
+func (s storageWrapper) InitWriter(common.Context) (common.Writer, error) {
 	return s.w, nil
 }
 
@@ -23,7 +25,7 @@ func SimpleIteratorProvider(i Iterator) IteratorProvider {
 
 // SimpleWriterProvider returns WriterProvider that provides
 // static context-independent Writer.
-func SimpleWriterProvider(w Writer) WriterProvider {
+func SimpleWriterProvider(w common.Writer) common.WriterProvider {
 	return &storageWrapper{
 		w: w,
 	}