import 'dart:convert';

import 'package:crypto/crypto.dart' as crypto;

import '../io_sender.dart';
import '../io_tool/io_tool.dart';
import '../io_type.dart';
import '../sm4Encipher/sm4.dart';

/// TODO:取消添加遥控
class SenderCancelAddRemoteControlCommand extends SenderProtocol {

  SenderCancelAddRemoteControlCommand({
    this.keyID,
    this.userID,
    this.token,
    this.needAuthor,
    this.signKey,
    this.privateKey,
  }) : super(CommandType.generalExtendedCommond);
  String? keyID;
  String? userID;
  List<int>? token;
  int? needAuthor;
  List<int>? signKey;
  List<int>? privateKey;

  @override
  String toString() {
    return 'SenderCancelAddRemoteControlCommand{keyID: $keyID, '
        'userID: $userID, token: $token, needAuthor: $needAuthor, signKey: $signKey, privateKey: $privateKey}';
  }

  @override
  List<int> messageDetail() {
    List<int> data = [];
    List<int> subData = [];
    List<int> ebcData = [];

    // 指令类型
    data.addAll(intChangList(commandType!.typeValue));

    // 子命令类型
    data.add(28);

    // keyID 40
    int keyIDLength = utf8.encode(keyID!).length;
    subData.addAll(utf8.encode(keyID!));
    subData = getFixedLengthList(subData, 40 - keyIDLength);

    //userID  20
    int userIDLength = utf8.encode(userID!).length;
    subData.addAll(utf8.encode(userID!));
    subData = getFixedLengthList(subData, 20 - userIDLength);

    if(needAuthor == 0){
      //AuthCodeLen  1
      subData.add(0);
    } else {
      List<int> authCodeData = [];
      //KeyID
      authCodeData.addAll(utf8.encode(keyID!));

      //authUserID
      authCodeData.addAll(utf8.encode(userID!));

      //token 4 首次请求 Token 填 0，如果锁需要鉴权操作者身份，则会分配动态口令并在应答消息中返回，二次请求时带上。
      authCodeData.addAll(token!);

      authCodeData.addAll(signKey!);

      // 把KeyID、authUserID、时间戳、公钥通过md5加密之后就是authCode
      var authCode = crypto.md5.convert(authCodeData);

      subData.add(authCode.bytes.length);
      subData.addAll(authCode.bytes);
    }

    data.add(subData.length);
    data.addAll(subData);

    if ((data.length % 16) != 0) {
      int add = 16 - data.length % 16;
      for (int i = 0; i < add; i++) {
        data.add(0);
      }
    }

    printLog(data);
    // 拿到数据之后通过LockId进行SM4 ECB加密 key:544d485f633335373034383064613864
    ebcData = SM4.encrypt(data, key: privateKey, mode: SM4CryptoMode.ECB);
    return ebcData;
  }
}