// Copyright 2016 The etcd Authors
//
// 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 clientv3

import (
	pb "github.com/coreos/etcd/etcdserver/etcdserverpb"

	"golang.org/x/net/context"
)

type (
	LeaseRevokeResponse pb.LeaseRevokeResponse
	LeaseID             int64
)

// LeaseGrantResponse wraps the protobuf message LeaseGrantResponse.
type LeaseGrantResponse struct {
	*pb.ResponseHeader
	ID    LeaseID
	TTL   int64
	Error string
}

type Lease interface {
	// Grant creates a new lease.
	Grant(ctx context.Context, ttl int64) (*LeaseGrantResponse, error)
}

type lessor struct {
}

func (l *lessor) Grant(ctx context.Context, ttl int64) (*LeaseGrantResponse, error) {
	return &LeaseGrantResponse{
		ResponseHeader: &pb.ResponseHeader{},
		TTL:            ttl,
		ID:             LeaseID(ttl),
	}, nil
}