public void RemoveScheduledTransaction(ScheduledTransaction scheduledTransaction)
{
if (ScheduledTransactions.Remove(scheduledTransaction))
{
RaiseDatabaseChanged();
}
}
public void SaveScheduledTransaction(ScheduledTransaction scheduledTransaction)
{
using (DeferEvents())
{
var existingTransaction = ScheduledTransactions.FirstOrDefault(item => item.Id == scheduledTransaction.Id);
if (existingTransaction == null)
{
scheduledTransaction.Id = GenerateId(ScheduledTransactions, item => item.Id);
}
AddOrReplace(ScheduledTransactions, existingTransaction, scheduledTransaction);
if (scheduledTransaction.NextOccurenceDate == null)
{
ProcessScheduledTransactions();
}
RaiseDatabaseChanged();
}
}
private void ProcessScheduledTransaction(ScheduledTransaction scheduledTransaction, DateTime createUntil)
{
using (DeferEvents())
{
var reccurenceRule = scheduledTransaction.RecurrenceRule;
if (reccurenceRule == null)
{
// Invalid recurrence rule => remove the scheduled transaction
RemoveScheduledTransaction(scheduledTransaction);
return;
}
if (scheduledTransaction.NextOccurenceDate == null)
{
var recurrenceDate = reccurenceRule.GetNextOccurrence(scheduledTransaction.StartDate);
scheduledTransaction.NextOccurenceDate = recurrenceDate;
if (scheduledTransaction.NextOccurenceDate == null)
{
// recurrence ended => remove the scheduled transaction
RemoveScheduledTransaction(scheduledTransaction);
return;
}
}
while (scheduledTransaction.NextOccurenceDate < createUntil)
{
var transactionDate = scheduledTransaction.NextOccurenceDate.Value;
var interAccount = scheduledTransaction.CreditedAccount != null;
var transaction = new Transaction
{
Account = scheduledTransaction.Account,
Category = scheduledTransaction.Category,
Comment = scheduledTransaction.Comment,
Amount = interAccount ? -Math.Abs(scheduledTransaction.Amount) : scheduledTransaction.Amount,
Payee = scheduledTransaction.Payee,
ValueDate = transactionDate,
};
SaveTransaction(transaction);
if (scheduledTransaction.CreditedAccount != null)
{
var creditedTransaction = new Transaction
{
Account = scheduledTransaction.CreditedAccount,
Category = scheduledTransaction.Category,
Comment = scheduledTransaction.Comment,
Amount = Math.Abs(scheduledTransaction.Amount),
Payee = scheduledTransaction.Payee,
ValueDate = transactionDate,
LinkedTransaction = transaction,
};
transaction.LinkedTransaction = creditedTransaction;
SaveTransaction(transaction);
SaveTransaction(creditedTransaction);
}
var newRecurrenceDate = reccurenceRule.GetNextOccurrence(scheduledTransaction.NextOccurenceDate.Value.AddDays(1));
if (scheduledTransaction.NextOccurenceDate == newRecurrenceDate)
{
// Infinite loop, remove the transaction
RemoveScheduledTransaction(scheduledTransaction);
return;
}
if (newRecurrenceDate == null)
{
// Recurrence ended, remove the transaction
RemoveScheduledTransaction(scheduledTransaction);
return;
}
scheduledTransaction.NextOccurenceDate = newRecurrenceDate;
RaiseDatabaseChanged();
}
}
}