static void Main(string[] args)
{
ILedger ledgerAPI = new Ledger();
//CHECK THE FUNCTIONALITY
decimal balance = -1;
AccountID firstAcc, secondAcc;
ExpectSuccess(ledgerAPI.CreateAccount(out firstAcc));
ExpectSuccess(ledgerAPI.AddFunds(firstAcc, 1000));
ExpectSuccess(ledgerAPI.CreateAccount(out secondAcc));
ExpectSuccess(ledgerAPI.AddFunds(secondAcc, 6000));
ExpectSuccess(ledgerAPI.RemoveFunds(secondAcc, 4000));
ExpectTrue(ledgerAPI.RemoveFunds(secondAcc, 3000) == LedgerOperationStatus.InsufficientFunds);
ExpectTrue(ledgerAPI.AddFunds(13, 5000) == LedgerOperationStatus.InvalidAccount);
ledgerAPI.GetAccountBalance(secondAcc, out balance);
ExpectTrue(balance == 2000);
FreezeID freezeId = 0;
ExpectSuccess(ledgerAPI.FreezeFunds(secondAcc, 2000, out freezeId));
ExpectTrue(freezeId != 0);
FreezeID frozen = freezeId;
ExpectTrue(ledgerAPI.FreezeFunds(secondAcc, 1000, out freezeId) == LedgerOperationStatus.InsufficientFunds);
ExpectTrue(freezeId == 0);
ExpectTrue(ledgerAPI.TransferFunds(secondAcc, firstAcc, 1000) == LedgerOperationStatus.InsufficientFunds);
ExpectSuccess(ledgerAPI.TransferFunds(firstAcc, secondAcc, 1000));
ledgerAPI.GetAccountBalance(secondAcc, out balance);
ExpectTrue(balance == 1000);
ExpectSuccess(ledgerAPI.UnfreezeFunds(secondAcc, out balance, frozen));
ExpectTrue(balance == 2000);
var ledger = ledgerAPI.GetLedger();
ITransactionData td = ledger[ledger.Count - 1];
ExpectTrue((td.SubType == LedgerTransactionSubType.Unfreeze && td.Status == LedgerTransactionApproval.Approved && td.RejectReason == LedgerTransactionRejectReason.NotRelevant && td.AccountId == secondAcc));
ExpectTrue(ledgerAPI.UnfreezeFunds(secondAcc, out balance, frozen) == LedgerOperationStatus.InvalidFreezeID);
ExpectTrue(balance == 0);
ledger = ledgerAPI.GetLedger();
td = ledger[ledger.Count - 1];
ExpectTrue((td.SubType == LedgerTransactionSubType.Unfreeze && td.Status == LedgerTransactionApproval.Rejected && td.RejectReason == LedgerTransactionRejectReason.InvalidFreezeID && td.AccountId == secondAcc));
ExpectSuccess(ledgerAPI.TransferFunds(secondAcc, firstAcc, 1000));
ledger = ledgerAPI.GetLedger();
var td1 = ledger[ledger.Count - 2];
var td2 = ledger[ledger.Count - 1];
ExpectTrue((td2.SubType == LedgerTransactionSubType.TransferFunds && td1.Status == LedgerTransactionApproval.Approved && td1.RejectReason == LedgerTransactionRejectReason.NotRelevant && td2.AccountId == firstAcc));
foreach (var t in ledgerAPI.GetLedger())
{
Console.WriteLine(t.ToString());
}
//AND NOW GET THE SHIT OUT OF THE LEDGER AND TEST THREAD-SAFETY WITH 1000 threads!!!
AccountID a1 = 0;
AccountID a2 = 0;
ledgerAPI.CreateAccount(out a1);
ledgerAPI.CreateAccount(out a2);
for (int i = 0; i < 10; i++)
{
Thread thr = new Thread(new ThreadStart(() => {
decimal balance2 = -1;
ledgerAPI.AddFunds(a1, 1000);
ledgerAPI.AddFunds(a2, 6000);
ledgerAPI.RemoveFunds(a2, 4000);
ledgerAPI.RemoveFunds(a1, 3000);
ledgerAPI.AddFunds(a2, 5000);
ledgerAPI.GetAccountBalance(a2, out balance2);
FreezeID freezeId1, freezeId2 = 0;
ledgerAPI.FreezeFunds(a1, 2000, out freezeId1);
ledgerAPI.FreezeFunds(a2, 1000, out freezeId2);
ledgerAPI.TransferFunds(a1, a2, 1000);
ledgerAPI.TransferFunds(a2, a1, 1000);
ledgerAPI.GetAccountBalance(12, out balance2);
ledgerAPI.UnfreezeFunds(a1, out balance2, freezeId1);
ledgerAPI.UnfreezeFunds(a2, out balance2, freezeId2);
ledgerAPI.TransferFunds(a2, a1, 1000);
}));
thr.Start();
}
foreach (var t in ledgerAPI.GetLedger())
{
if (t.Status == LedgerTransactionApproval.Approved)
{
Console.WriteLine(t.ToString());
}
}
decimal b1 = 0, b2 = 0;
ledgerAPI.GetAccountBalance(a1, out b1);
ledgerAPI.GetAccountBalance(a2, out b2);
ExpectTrue(b1 > 0);
ExpectTrue(b2 > 0);
ExpectTrue(b2 > b1);
Console.WriteLine("a1 Balance: {0}, a2 Balance: {1}", b1, b2);
Console.WriteLine("ALL IS GREAT");
Console.ReadKey();
}
LedgerOperationStatus ILedger.FreezeFunds(AccountID accountID, decimal balance, out FreezeID freezeID)
{
LedgerOperationStatus status = LedgerOperationStatus.Success;
//prepare RemoveFunds/Freeze transaction
TransactionLine transaction = new TransactionLine(accountID,
balance,
LedgerDatabase.TransactionType.RemoveFunds, TransactionSubType.Freeze);
if (accountsTable.Contains(accountID))
{
AccountLine account = accountsTable.Select(accountID);
lock (account)
{
if (balance > account.Balance)
{
freezeID = 0;
transaction.Status = LedgerDatabase.TransactionStatus.Rejected;
transaction.RejectReason = TransactionRejectReason.InsufficientFunds;
status = LedgerOperationStatus.InsufficientFunds;
}
else
{
//update account balance and add freeze record
account.Balance -= balance;
FrozenBalanceLine frozenBalance = new FrozenBalanceLine(accountID, balance);
freezeID = frozenBalancesTable.Insert(frozenBalance);
}
}
}
else
{
freezeID = 0;
transaction.Status = LedgerDatabase.TransactionStatus.Rejected;
transaction.RejectReason = TransactionRejectReason.InvalidAccount;
status = LedgerOperationStatus.InvalidAccount;
}
transactionsTable.Insert(transaction);
return(status);
}
