import 'dart:convert';

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

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

// 重置开锁密码(同时重置自定义密码和离线密码，绑定完锁之后第一个管理员密码不重置)
class SenderResetPasswordsCommand extends SenderProtocol {

  SenderResetPasswordsCommand({
    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 'SenderCustomPasswordsCommand{keyID: $keyID, userID: $userID, '
        'token: $token, '
        'needAuthor: $needAuthor, signKey: $signKey, privateKey: $privateKey}';
  }

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

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

    // 子命令类型
    data.add(19);

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

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

    // token
    subData.addAll(token!);

    if (needAuthor == 0) {
      //AuthCodeLen  1
      subData.add(0);
    } else {
      final List<int> authCodeData = <int>[];

      //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
      final crypto.Digest 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) {
      final 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;
  }
}

class SenderResetPasswordsReply extends Reply {
  SenderResetPasswordsReply.parseData(
      CommandType commandType, List<int> dataDetail)
      : super.parseData(commandType, dataDetail) {
    data = dataDetail;
    final int status = data[2];
    errorWithStstus(status);
  }
}