// Let's buy 100 USD for 5 LGT per USD
CancelTradeOrderBlock CreateCancelOrderBlock(TransactionBlock previousBlock, TradeOrderBlock order, TransactionBlock previous_to_order_block)
{
var cancelBlock = new CancelTradeOrderBlock
{
AccountID = order.AccountID,
ServiceHash = string.Empty,
Balances = new Dictionary <string, decimal>(),
TradeOrderId = order.Hash
};
var order_transaction = order.GetTransaction(previous_to_order_block);
cancelBlock.Balances.Add(order.SellTokenCode, previousBlock.Balances[order.SellTokenCode] + order_transaction.TotalBalanceChange);
// transfer unchanged token balances from the previous block
foreach (var balance in previousBlock.Balances)
{
if (!(cancelBlock.Balances.ContainsKey(balance.Key)))
{
cancelBlock.Balances.Add(balance.Key, balance.Value);
}
}
if (order.AccountID == AccountId1)
{
cancelBlock.InitializeBlock(previousBlock, PrivateKey1, AccountId1);
}
else
{
cancelBlock.InitializeBlock(previousBlock, PrivateKey2, AccountId2);
}
return(cancelBlock);
}
// The cancellation should restore the balance that was locked by the trade order.
// Thus, it should take the balance from the latest block and add the balamce (transactin amount) locked by the order block.
APIResultCodes ValidateCancellationBalance(CancelTradeOrderBlock block, TransactionBlock lastBlock, TradeOrderBlock original_order)
{
var order_previous_block = _accountCollection.FindBlockByHash(original_order.PreviousHash);
var order_transaction = original_order.GetTransaction(order_previous_block);
var cancel_transaction = block.GetTransaction(lastBlock);
if (order_transaction.TotalBalanceChange != cancel_transaction.TotalBalanceChange || order_transaction.TokenCode != cancel_transaction.TokenCode)
{
return(APIResultCodes.CancelTradeOrderValidationFailed);
}
return(APIResultCodes.Success);
}