hash-wallet/lib/exchange/trade.dart

import 'package:cake_wallet/exchange/exchange_provider_description.dart';
import 'package:cake_wallet/exchange/trade_state.dart';
import 'package:cw_core/crypto_currency.dart';
import 'package:cw_core/format_amount.dart';
import 'package:cw_core/hive_type_ids.dart';
import 'package:hive/hive.dart';

class Trade extends HiveObject {
  Trade({
    required this.id,
    required this.amount,
    ExchangeProviderDescription? provider,
    CryptoCurrency? from,
    CryptoCurrency? to,
    TradeState? state,
    this.receiveAmount,
    this.createdAt,
    this.expiredAt,
    this.inputAddress,
    this.extraId,
    this.outputTransaction,
    this.refundAddress,
    this.walletId,
    this.payoutAddress,
    this.password,
    this.providerId,
    this.providerName,
    this.fromWalletAddress,
    this.memo,
    this.txId,
    this.isRefund,
    this.isSendAll,
    this.router,
    this.userCurrencyFromRaw,
    this.userCurrencyToRaw,
  }) {
    if (provider != null) providerRaw = provider.raw;

    fromRaw = from?.raw ?? -1;
    toRaw   = to?.raw   ?? -1;

    if (state != null) stateRaw = state.raw;
  }

  static const typeId = TRADE_TYPE_ID;
  static const boxName = 'Trades';
  static const boxKey = 'tradesBoxKey';

  @HiveField(0, defaultValue: '')
  String id;

  @HiveField(1, defaultValue: 0)
  late int providerRaw;

  ExchangeProviderDescription get provider =>
      ExchangeProviderDescription.deserialize(raw: providerRaw);

  @HiveField(2, defaultValue: -1)
  int fromRaw = -1;

  CryptoCurrency? get from => CryptoCurrency.safeDeserialize(raw: fromRaw);

  @HiveField(3, defaultValue: -1)
  int toRaw = -1;

  CryptoCurrency? get to => CryptoCurrency.safeDeserialize(raw: toRaw);

  @HiveField(4, defaultValue: '')
  late String stateRaw;

  TradeState get state => TradeState.deserialize(raw: stateRaw);

  @HiveField(5)
  DateTime? createdAt;

  @HiveField(6)
  DateTime? expiredAt;

  @HiveField(7, defaultValue: '')
  String amount;

  @HiveField(8)
  String? inputAddress;

  @HiveField(9)
  String? extraId;

  @HiveField(10)
  String? outputTransaction;

  @HiveField(11)
  String? refundAddress;

  @HiveField(12)
  String? walletId;

  @HiveField(13)
  String? payoutAddress;

  @HiveField(14)
  String? password;

  @HiveField(15)
  String? providerId;

  @HiveField(16)
  String? providerName;

  @HiveField(17)
  String? fromWalletAddress;

  @HiveField(18)
  String? memo;

  @HiveField(19)
  String? txId;

  @HiveField(20)
  bool? isRefund;

  @HiveField(21)
  bool? isSendAll; /// Must be set on createTrade;

  @HiveField(22)
  String? router;

  @HiveField(23, defaultValue: '')
  String? receiveAmount;

  @HiveField(24, defaultValue: '')
  String? userCurrencyFromRaw;

  @HiveField(25, defaultValue: '')
  String? userCurrencyToRaw;

  CryptoCurrency? get userCurrencyFrom {
    if (userCurrencyFromRaw == null || userCurrencyFromRaw!.isEmpty) {
      return null;
    }
    final underscoreIndex = userCurrencyFromRaw!.indexOf('_');
    final title = userCurrencyFromRaw!.substring(0, underscoreIndex);
    final tag = userCurrencyFromRaw!.substring(underscoreIndex + 1);

    return CryptoCurrency(
      title: title,
      tag: tag.isNotEmpty ? tag : null,
      name: '',
      raw: -1,
      decimals: 1,
    );
  }

  CryptoCurrency? get userCurrencyTo {
    if (userCurrencyToRaw == null || userCurrencyToRaw!.isEmpty) {
      return null;
    }
    final underscoreIndex = userCurrencyToRaw!.indexOf('_');
    final title = userCurrencyToRaw!.substring(0, underscoreIndex);
    final tag = userCurrencyToRaw!.substring(underscoreIndex + 1);

    return CryptoCurrency(
      title: title,
      tag: tag.isNotEmpty ? tag : null,
      name: '',
      raw: -1,
      decimals: 1,
    );
  }

  static Trade fromMap(Map<String, Object?> map) {
    return Trade(
      id: map['id'] as String,
      provider: ExchangeProviderDescription.deserialize(raw: map['provider'] as int),
      from: CryptoCurrency.deserialize(raw: map['input'] as int),
      to: CryptoCurrency.deserialize(raw: map['output'] as int),
      createdAt:
          map['date'] != null ? DateTime.fromMillisecondsSinceEpoch(map['date'] as int) : null,
      amount: map['amount'] as String,
      receiveAmount: map['receive_amount'] as String?,
      walletId: map['wallet_id'] as String,
      fromWalletAddress: map['from_wallet_address'] as String?,
      memo: map['memo'] as String?,
      txId: map['tx_id'] as String?,
      isRefund: map['isRefund'] as bool?,
      isSendAll: map['isSendAll'] as bool?,
      router: map['router'] as String?,
      extraId: map['extra_id'] as String?,
    );
  }

  Map<String, dynamic> toMap() {
    return <String, dynamic>{
      'id': id,
      'provider': provider.serialize(),
      'input': fromRaw,
      'output': toRaw,
      'date': createdAt != null ? createdAt!.millisecondsSinceEpoch : null,
      'amount': amount,
      'receive_amount': receiveAmount,
      'wallet_id': walletId,
      'from_wallet_address': fromWalletAddress,
      'memo': memo,
      'tx_id': txId,
      'isRefund': isRefund,
      'isSendAll': isSendAll,
      'router': router,
      'extra_id': extraId,
    };
  }

  String amountFormatted() => formatAmount(amount);
  String receiveAmountFormatted() => formatAmount(receiveAmount ?? '');
}

class TradeAdapter extends TypeAdapter<Trade> {
  @override
  final int typeId = Trade.typeId;

  @override
  Trade read(BinaryReader reader) {
    final numOfFields = reader.readByte();
    final fields = <int, dynamic>{};
    for (int i = 0; i < numOfFields; i++) {
      try {
        fields[reader.readByte()] = reader.read();
      } catch (_) {}
    }

    return Trade(
      id: fields[0] == null ? '' : fields[0] as String,
      amount: fields[7] == null ? '' : fields[7] as String,
      receiveAmount: fields[23] as String?,
      createdAt: fields[5] as DateTime?,
      expiredAt: fields[6] as DateTime?,
      inputAddress: fields[8] as String?,
      extraId: fields[9] as String?,
      outputTransaction: fields[10] as String?,
      refundAddress: fields[11] as String?,
      walletId: fields[12] as String?,
      payoutAddress: fields[13] as String?,
      password: fields[14] as String?,
      providerId: fields[15] as String?,
      providerName: fields[16] as String?,
      fromWalletAddress: fields[17] as String?,
      memo: fields[18] as String?,
      txId: fields[19] as String?,
      isRefund: fields[20] as bool?,
      isSendAll: fields[21] as bool?,
      router: fields[22] as String?,
      userCurrencyFromRaw: fields[24] as String?,
      userCurrencyToRaw: fields[25] as String?,
    )
      ..providerRaw = fields[1] == null ? 0 : fields[1] as int
      ..fromRaw = (fields[2] as int?) ?? -1
      ..toRaw = (fields[3] as int?) ?? -1
      ..stateRaw = fields[4] == null ? '' : fields[4] as String;
  }

  @override
  void write(BinaryWriter writer, Trade obj) {
    writer
      ..writeByte(26)
      ..writeByte(0)
      ..write(obj.id)
      ..writeByte(1)
      ..write(obj.providerRaw)
      ..writeByte(2)
      ..write(obj.fromRaw)
      ..writeByte(3)
      ..write(obj.toRaw)
      ..writeByte(4)
      ..write(obj.stateRaw)
      ..writeByte(5)
      ..write(obj.createdAt)
      ..writeByte(6)
      ..write(obj.expiredAt)
      ..writeByte(7)
      ..write(obj.amount)
      ..writeByte(8)
      ..write(obj.inputAddress)
      ..writeByte(9)
      ..write(obj.extraId)
      ..writeByte(10)
      ..write(obj.outputTransaction)
      ..writeByte(11)
      ..write(obj.refundAddress)
      ..writeByte(12)
      ..write(obj.walletId)
      ..writeByte(13)
      ..write(obj.payoutAddress)
      ..writeByte(14)
      ..write(obj.password)
      ..writeByte(15)
      ..write(obj.providerId)
      ..writeByte(16)
      ..write(obj.providerName)
      ..writeByte(17)
      ..write(obj.fromWalletAddress)
      ..writeByte(18)
      ..write(obj.memo)
      ..writeByte(19)
      ..write(obj.txId)
      ..writeByte(20)
      ..write(obj.isRefund)
      ..writeByte(21)
      ..write(obj.isSendAll)
      ..writeByte(22)
      ..write(obj.router)
      ..writeByte(23)
      ..write(obj.receiveAmount)
      ..writeByte(24)
      ..write(obj.userCurrencyFromRaw)
      ..writeByte(25)
      ..write(obj.userCurrencyToRaw);
  }

  @override
  int get hashCode => typeId.hashCode;

  @override
  bool operator ==(Object other) =>
      identical(this, other) ||
      other is TradeAdapter && runtimeType == other.runtimeType && typeId == other.typeId;
}