static void Main(string[] args)
{
logger.Info("===========================");
logger.Info("Start SupportBank session");
ConfigLogger();
InterfaceHandler.PrintWelcome();
// Parse CSV and generate transactions list and accounts list
// TODO Move to new Importer class
string defaultImport = "Transactions2012.xml";
transactionsHandler = new TransactionsHandler();
transactionsHandler.Parse(defaultImport);
// Start program loop
// TODO move to new CommandHandler class
while (true)
{
InterfaceHandler.PrintAvailableCommands(transactionsHandler.GetStatus());
string command = Console.ReadLine();
logger.Info("User command: " + command);
switch (command.ToLower())
{
case "list transactions":
InterfaceHandler.Print(transactionsHandler.GetTransactions());
break;
case "list accounts":
InterfaceHandler.Print(transactionsHandler.GetAccounts());
break;
case "list all":
InterfaceHandler.Print(transactionsHandler.GetTransactions(), transactionsHandler.GetAccounts());
break;
default:
if (command.ToLower().StartsWith("list "))
{
string selectedAccount = command.Substring("list ".Length);
InterfaceHandler.Print(selectedAccount, transactionsHandler.GetTransactions(), transactionsHandler.GetAccounts());
}
else if (command.ToLower().StartsWith("import file "))
{
string filename = command.Substring("import file ".Length);
transactionsHandler.Parse(filename);
}
else
{
Console.WriteLine("Command not recognised. Please try again.");
}
break;
}
}
}
private void Save(List <string> accounts, List <Transaction> transactions)
{
if (transactions != null && accounts != null)
{
if (transactions.Any())
{
this.accounts = accounts;
this.transactions = transactions;
}
else
{
InterfaceHandler.PrintError(InterfaceHandler.ERROR_EMPTY);
}
}
}
private void ParseCSV(StreamReader streamReader)
{
logger.Info("Start parsing CSV");
List <string> accounts = new List <string>();
List <Transaction> transactions = new List <Transaction>();
// Read from CSV with filename
logger.Info("Open CSV from filename");
string line;
if ((line = streamReader.ReadLine()) != null)
{
// Get indices from header
List <string> headers = line.ToLower().Split(',').ToList();
int dateIndex = headers.IndexOf(DATE);
int senderNameIndex = headers.IndexOf(SENDER);
int recipientNameIndex = headers.IndexOf(RECIPIENT);
int narrativeIndex = headers.IndexOf(NARRATIVE);
int amountIndex = headers.IndexOf(AMOUNT);
// Create transcation and add to list
// Also add new account names to list
int lineCount = 2;
List <KeyValuePair <int, int> > errorList = new List <KeyValuePair <int, int> >();
while ((line = streamReader.ReadLine()) != null)
{
string[] data = line.Split(',');
string senderName = data[senderNameIndex];
string recipientName = data[recipientNameIndex];
// Load new account into accounts
if (!accounts.Contains(senderName))
{
accounts.Add(senderName);
}
if (!accounts.Contains(recipientName))
{
accounts.Add(recipientName);
}
// Parse strings with Try/Catch
DateTime dateTime = new DateTime();
float amount = 0;
try
{
dateTime = Convert.ToDateTime(data[dateIndex]);
}
catch
{
logger.Warn("Failed to parse date on line " + lineCount);
errorList.Add(new KeyValuePair <int, int>(lineCount, InterfaceHandler.ERROR_DATE));
continue;
}
try
{
amount = float.Parse(data[amountIndex]);
}
catch
{
logger.Warn("Failed to parse amount on line " + lineCount);
errorList.Add(new KeyValuePair <int, int>(lineCount, InterfaceHandler.ERROR_AMOUNT));
continue;
}
// Add new transaction to transactions list
transactions.Add(new Transaction(
transactions.Count,
dateTime,
senderName,
recipientName,
data[narrativeIndex],
amount
));
lineCount++;
}
InterfaceHandler.PrintImportErrors(errorList);
// Save on successful parsing
Save(accounts, transactions);
logger.Info("Finish parsing CSV");
}
}
