From 6d8612fd51fec57c5375a894e5b40020578a0072 Mon Sep 17 00:00:00 2001
From: Leonard Lyubich <leonard@nspcc.ru>
Date: Thu, 5 Nov 2020 12:03:26 +0300
Subject: [PATCH] [#189] sdk/netmap: Refactor Operation enum

Replace alias to v2 type Operation with v2-compatible implementation.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
---
 pkg/netmap/operation.go      | 107 +++++++++++++++++++++++++++++++++++
 pkg/netmap/operation_test.go |  55 ++++++++++++++++++
 pkg/netmap/policy.go         |   1 -
 3 files changed, 162 insertions(+), 1 deletion(-)
 create mode 100644 pkg/netmap/operation.go
 create mode 100644 pkg/netmap/operation_test.go

diff --git a/pkg/netmap/operation.go b/pkg/netmap/operation.go
new file mode 100644
index 0000000..2a8281c
--- /dev/null
+++ b/pkg/netmap/operation.go
@@ -0,0 +1,107 @@
+package netmap
+
+import (
+	"github.com/nspcc-dev/neofs-api-go/v2/netmap"
+)
+
+// Operation is an enumeration of v2-compatible filtering operations.
+type Operation uint32
+
+const (
+	_ Operation = iota
+
+	// OpEQ is an "Equal" operation.
+	OpEQ
+
+	// OpNE is a "Not equal" operation.
+	OpNE
+
+	// OpGT is a "Greater than" operation.
+	OpGT
+
+	// OpGE is a "Greater than or equal to" operation.
+	OpGE
+
+	// OpLT is a "Less than" operation.
+	OpLT
+
+	// OpLE is a "Less than or equal to" operation.
+	OpLE
+
+	// OpOR is an "OR" operation.
+	OpOR
+
+	// OpAND is an "AND" operation.
+	OpAND
+)
+
+// OperationFromV2 converts v2 Operation to Operation.
+func OperationFromV2(op netmap.Operation) Operation {
+	switch op {
+	default:
+		return 0
+	case netmap.OR:
+		return OpOR
+	case netmap.AND:
+		return OpAND
+	case netmap.GE:
+		return OpGE
+	case netmap.GT:
+		return OpGT
+	case netmap.LE:
+		return OpLE
+	case netmap.LT:
+		return OpLT
+	case netmap.EQ:
+		return OpEQ
+	case netmap.NE:
+		return OpNE
+	}
+}
+
+// ToV2 converts Operation to v2 Operation.
+func (op Operation) ToV2() netmap.Operation {
+	switch op {
+	default:
+		return netmap.UnspecifiedOperation
+	case OpOR:
+		return netmap.OR
+	case OpAND:
+		return netmap.AND
+	case OpGE:
+		return netmap.GE
+	case OpGT:
+		return netmap.GT
+	case OpLE:
+		return netmap.LE
+	case OpLT:
+		return netmap.LT
+	case OpEQ:
+		return netmap.EQ
+	case OpNE:
+		return netmap.NE
+	}
+}
+
+func (op Operation) String() string {
+	switch op {
+	default:
+		return "UNSPECIFIED"
+	case OpNE:
+		return "NE"
+	case OpEQ:
+		return "EQ"
+	case OpLT:
+		return "LT"
+	case OpLE:
+		return "LE"
+	case OpGT:
+		return "GT"
+	case OpGE:
+		return "GE"
+	case OpAND:
+		return "AND"
+	case OpOR:
+		return "OR"
+	}
+}
diff --git a/pkg/netmap/operation_test.go b/pkg/netmap/operation_test.go
new file mode 100644
index 0000000..c60479b
--- /dev/null
+++ b/pkg/netmap/operation_test.go
@@ -0,0 +1,55 @@
+package netmap
+
+import (
+	"testing"
+
+	"github.com/nspcc-dev/neofs-api-go/v2/netmap"
+	"github.com/stretchr/testify/require"
+)
+
+func TestOperationFromV2(t *testing.T) {
+	for _, item := range []struct {
+		op   Operation
+		opV2 netmap.Operation
+	}{
+		{
+			op:   0,
+			opV2: netmap.UnspecifiedOperation,
+		},
+		{
+			op:   OpEQ,
+			opV2: netmap.EQ,
+		},
+		{
+			op:   OpNE,
+			opV2: netmap.NE,
+		},
+		{
+			op:   OpOR,
+			opV2: netmap.OR,
+		},
+		{
+			op:   OpAND,
+			opV2: netmap.AND,
+		},
+		{
+			op:   OpLE,
+			opV2: netmap.LE,
+		},
+		{
+			op:   OpLT,
+			opV2: netmap.LT,
+		},
+		{
+			op:   OpGT,
+			opV2: netmap.GT,
+		},
+		{
+			op:   OpGE,
+			opV2: netmap.GE,
+		},
+	} {
+		require.Equal(t, item.op, OperationFromV2(item.opV2))
+		require.Equal(t, item.opV2, item.op.ToV2())
+	}
+}
diff --git a/pkg/netmap/policy.go b/pkg/netmap/policy.go
index 3ed5cc3..be5c6e8 100644
--- a/pkg/netmap/policy.go
+++ b/pkg/netmap/policy.go
@@ -10,7 +10,6 @@ type Selector = netmap.Selector
 type Filter = netmap.Filter
 type Replica = netmap.Replica
 type Clause = netmap.Clause
-type Operation = netmap.Operation
 
 func PlacementPolicyToJSON(p *PlacementPolicy) ([]byte, error) {
 	return netmap.PlacementPolicyToJSON(p)