import 'dart:convert';
import '../io_tool/io_tool.dart';
import '../sm4Encipher/sm4.dart';
import '../io_reply.dart';
import '../io_sender.dart';
import '../io_type.dart';
import 'package:crypto/crypto.dart' as crypto;

//TODO:自动落锁开关
class AutomaticPadlockCommand extends SenderProtocol {
  String? lockID;
  String? userID;
  int? autoLockFlag;
  List<int>? token;
  int? needAuthor;
  List<int>? signKey;
  List<int>? privateKey;
  AutomaticPadlockCommand({
    this.lockID,
    this.userID,
    this.autoLockFlag,
    this.token,
    this.needAuthor,
    this.signKey,
    this.privateKey
  }) : super(CommandType.generalExtendedCommond);

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

    // 指令类型
    int type = commandType!.typeValue;
    double typeDouble = type / 256;
    int type1 = typeDouble.toInt();
    int type2 = type % 256;
    data.add(type1);
    data.add(type2);

    // 子命令类型
    data.add(4);

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

    //userID 要接受钥匙的用户的useid  20
    int userIDLength = utf8.encode(userID!).length;
    print("openDoorUserId:${utf8.encode(userID!)} utf8.encode(userID!).length:${utf8.encode(userID!).length}");
    subData.addAll(utf8.encode(userID!));
    subData = getFixedLengthList(subData, 20 - userIDLength);

    // autoLockFlag  0：不自动落锁，1：自动落锁
    subData.add(autoLockFlag!);

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

    print("data:$data data.length:${data.length} (data.length % 16):${(data.length % 16)}");
    if ((data.length % 16) != 0) {
      int add = (16 - data.length % 16);
      for (int i = 0; i < add; i++) {
        data.add(0);
      }
    }
    print("${commandType!.typeName} SM4Data:$data");
    ebcData = SM4.encrypt(data, key: privateKey, mode: SM4CryptoMode.ECB);
    return ebcData;
  }
}

class AutomaticPadlockReply extends Reply {
  AutomaticPadlockReply.parseData(CommandType commandType, List<int> dataDetail)
      : super.parseData(commandType, dataDetail) {
    data = dataDetail;
  }
}