public override bool Execute(TransactionResultCapsule result)
{
long fee = CalcFee();
try
{
ExchangeInjectContract ei_contract = this.contract.Unpack <ExchangeInjectContract>();
AccountCapsule account = this.db_manager.Account.Get(ei_contract.OwnerAddress.ToByteArray());
ExchangeCapsule exchange = this.db_manager.ExchangeFinal.Get(BitConverter.GetBytes(ei_contract.ExchangeId));
byte[] first_token_id = exchange.FirstTokenId.ToByteArray();
byte[] second_token_id = exchange.SecondTokenId.ToByteArray();
long first_token_balance = exchange.FirstTokenBalance;
long second_token_balance = exchange.SecondTokenBalance;
byte[] token_id = ei_contract.TokenId.ToByteArray();
long token_quantity = ei_contract.Quant;
byte[] other_token_id = null;
long other_token_quantity = 0;
if (token_id.SequenceEqual(first_token_id))
{
other_token_id = second_token_id;
other_token_quantity = (long)Math.Floor((double)(second_token_balance * token_quantity) / first_token_balance);
exchange.SetBalance(first_token_balance + token_quantity, second_token_balance + other_token_quantity);
}
else
{
other_token_id = first_token_id;
other_token_quantity = (long)Math.Floor((double)(first_token_balance * token_quantity) / second_token_balance);
exchange.SetBalance(first_token_balance + other_token_quantity, second_token_balance + token_quantity);
}
long new_balance = account.Balance - CalcFee();
account.Balance = new_balance;
if (token_id.SequenceEqual(COMPARE_CHARICTOR))
{
account.Balance = new_balance - token_quantity;
}
else
{
account.ReduceAssetAmountV2(token_id, token_quantity, this.db_manager);
}
if (other_token_id.SequenceEqual(COMPARE_CHARICTOR))
{
account.Balance = new_balance - other_token_quantity;
}
else
{
account.ReduceAssetAmountV2(other_token_id, other_token_quantity, this.db_manager);
}
this.db_manager.Account.Put(account.CreateDatabaseKey(), account);
this.db_manager.PutExchangeCapsule(exchange);
result.ExchangeInjectAnotherAmount = other_token_quantity;
result.SetStatus(fee, code.Sucess);
}
catch (ItemNotFoundException e)
{
Logger.Debug(e.Message);
result.SetStatus(fee, code.Failed);
throw new ContractExeException(e.Message);
}
catch (InvalidProtocolBufferException e)
{
Logger.Debug(e.Message);
result.SetStatus(fee, code.Failed);
throw new ContractExeException(e.Message);
}
return(true);
}
public async Task <TransactionExtention> ExchangeInject(ExchangeInjectContract contract)
{
return(await _grpcClient.ExchangeInjectAsync(contract));
}
