import 'dart:convert';

import '../../tools/storage.dart';
import '../io_tool/io_tool.dart';
import 'io_reply.dart';
import 'io_sender.dart';
import 'io_type.dart';

import 'package:crypto/crypto.dart' as a;
import 'package:convert/convert.dart';
import 'package:sm_crypto/sm_crypto.dart';

class GetPrivateKeyCommand extends SenderProtocol {

  String? lockID;
  String? keyID; // 钥匙ID
  String? authUserID; // 钥匙授权人ID
  int? nowTime;
  int? needAuthor;
  GetPrivateKeyCommand({
    this.lockID,
    this.keyID,
    this.authUserID,
    this.nowTime,
    this.needAuthor,
  }) : super(CommandType.getLockPrivateKey);

  @override
  List<int> messageDetail() {
    List<int> data = [];
    List<int> ebcData = [];
    print("lockID：${lockID!} lockID.utf8.encode${utf8.encode(lockID!)}");

    // 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);
    print("type:$type");
    print("type1:$type1");
    print("type2:$type2");

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

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

    //authUserID  40
    int authUserIDLength = utf8.encode(authUserID!).length;
    data.addAll(utf8.encode(authUserID!));
    data = getFixedLengthList(data, 20 - authUserIDLength);

    //NowTime  4
    // DateTime now = DateTime.now();
    // int timestamp = now.millisecondsSinceEpoch;
    var d1 = 0x11223344;
    data.add((d1 & 0xff000000) >> 24);
    data.add((d1 & 0xff0000) >> 16);
    data.add((d1 & 0xff00) >> 8);
    data.add((d1 & 0xff));

    if(needAuthor == 0){
      data.add(0);
    }else{
      List<int> authCodeData = [];

      //KeyID
      // authCodeData.addAll(utf8.encode(keyID!));
      //
      // //authUserID
      // authCodeData.addAll(utf8.encode(authUserID!));

      //KeyID
      authCodeData.addAll(utf8.encode(keyID!));

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

      //NowTime  4
      // DateTime now = DateTime.now();
      // int timestamp = now.millisecondsSinceEpoch;
      var d1 = 0x11223344;
      authCodeData.add((d1 & 0xff000000) >> 24);
      authCodeData.add((d1 & 0xff0000) >> 16);
      authCodeData.add((d1 & 0xff00) >> 8);
      authCodeData.add((d1 & 0xff));

      // var pubKey = Storage.getData("bluePublicKey");
      var pubKey = "ovOvAHuL5+dBCw7L3Qt7IQ==";
      List<int> pubKeyData = base64.decode(pubKey);
      authCodeData.addAll(pubKeyData);

      // 把KeyID、authUserID、时间戳、公钥通过md5加密之后就是authCode
      var authCode = a.md5.convert(authCodeData);
      print("authCodeData:$authCodeData \nauthCode:$authCode \nauthCodeBytes:${authCode.bytes}");

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

    if((data.length % 16) != 0){
      int add = (16 - data.length % 16);
      for(int i = 0; i<add; i++){
        data.add(0);
      }
    }
    print("SM4Data:$data");
    // 拿到数据之后通过LockId进行SM4 ECB加密
    ebcData = utf8.encode(getSM4Str(data, "TMH_c3570480da8d"));
    print("ebcData:$ebcData");
    // String cbcEncryptData = SM4.encrypt(data: data, key: "TMH_c3570480da8d", mode: SM4CryptoMode.CBC, iv: iv,);
    return ebcData;
  }
}

class GetPrivateKeyReply extends Reply {
  GetPrivateKeyReply.parseData(CommandType commandType,  List<int> dataDetail)
      : super.parseData(commandType, dataDetail) {
    print('获取私钥');
    int index = 0;
    // while(index < endIndex){
    //   commandKey = byteUInt8(dataDetail, index);
    //   index += offset_1;
    //   switch(commandKey){
    //
    //   }
    // }
  }
}