/*
 * Copyright 2020 Baidu, 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.
 */

// util.go - define the utilities for api package of RDS service
package ddc_util

import (
	"bytes"
	"encoding/gob"
	"encoding/hex"
	"errors"
	"fmt"
	"github.com/baidubce/bce-sdk-go/util/crypto"
)

func Aes128EncryptUseSecreteKey(sk string, data string) (string, error) {
	if len(sk) < 16 {
		return "", fmt.Errorf("error secrete key")
	}

	crypted, err := crypto.EBCEncrypto([]byte(sk[:16]), []byte(data))
	if err != nil {
		return "", err
	}

	return hex.EncodeToString(crypted), nil
}

// 拷贝字段内容工具
func SimpleCopyProperties(dst, src interface{}) (err error) {
	// 防止意外panic
	defer func() {
		if e := recover(); e != nil {
			err = errors.New(fmt.Sprintf("%v", e))
		}
	}()

	var buf bytes.Buffer
	if err := gob.NewEncoder(&buf).Encode(src); err != nil {
		return err
	}
	return gob.NewDecoder(bytes.NewBuffer(buf.Bytes())).Decode(dst)
}