// Copyright 2019 Dolthub, 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 random

import (
	"crypto/rand"
	"encoding/hex"

	"github.com/dolthub/dolt/go/store/d"
)

var (
	reader = rand.Reader
)

// Id creates a unique ID which is a random 16 byte hex string
func Id() string {
	data := make([]byte, 16)
	_, err := reader.Read(data)
	d.Chk.NoError(err)
	return hex.EncodeToString(data)
}
