// Copyright 2023 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//	http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package keyspace

import (
	"fmt"

	"github.com/pingcap/kvproto/pkg/kvrpcpb"
	"github.com/tikv/client-go/v2/tikv"
)

const (
	// tidbKeyspaceEtcdPathPrefix is the keyspace prefix for etcd namespace
	tidbKeyspaceEtcdPathPrefix = "/keyspaces/tidb/"
)

// CodecV1 represents api v1 codec.
var CodecV1 = tikv.NewCodecV1(tikv.ModeTxn)

// MakeKeyspaceEtcdNamespace return the keyspace prefix path for etcd namespace
func MakeKeyspaceEtcdNamespace(c tikv.Codec) string {
	if c.GetAPIVersion() == kvrpcpb.APIVersion_V1 {
		return ""
	}
	return fmt.Sprintf(tidbKeyspaceEtcdPathPrefix+"%d", c.GetKeyspaceID())
}