public static string GetFrequency(this RecurringTransaction transaction)
{
string frequency = string.Empty;
switch (transaction.Type)
{
case RecurringType.Daily:
frequency = $"Daily{GetPeriod()}";
break;
case RecurringType.Monthly:
frequency = $"Monthly{GetPeriod()}: {(int)transaction.DayOfMonth}";
break;
case RecurringType.Once:
frequency = "Once";
break;
case RecurringType.SemiMonthly:
frequency = $"Semi-monthly{GetPeriod()}: {string.Join(", ", GetDays())}";
break;
case RecurringType.Weekly:
frequency = $"Weekly{GetPeriod()}: {GetDaysOfWeek()}";
break;
}
return(frequency);
string GetPeriod()
{
if (transaction.Period > 1)
{
return($" (x{transaction.Period})");
}
return(string.Empty);
}
IEnumerable <int> GetDays()
{
yield return((int)transaction.DayOfMonth);
yield return((int)transaction.DayOfMonth2);
}
string GetDaysOfWeek()
{
var days = new char[7];
for (int i = 0; i < days.Length; ++i)
{
var day = (RecurringDayOfWeek)(1 << i);
days[i] = transaction.Days.HasFlag(day)
? $"{day}"[0]
: '-';
}
return(new string(days));
}
}
public EditRecurrencePatternDialog(RecurringTransaction data)
{
InitializeComponent();
_transaction = new RecurringTransaction();
_transaction.OverwriteWith(data);
PullFromModel();
}
public static object GetValue(this RecurringTransaction transaction)
{
if (transaction.ValueType == RecurringValueType.Interest)
{
return(transaction.Interest);
}
else
{
return(transaction.Amount);
}
}
public static DateTime GetNextDate(this RecurringTransaction model, out bool isValid)
{
var date = model.StartDate;
isValid = true;
switch (model.Type)
{
case RecurringType.Once:
case RecurringType.Daily:
{
// the start date is the current date
break;
}
case RecurringType.SemiMonthly:
case RecurringType.Monthly:
{
// the start date is the minimum date to start
var seed = date.FirstOfMonth();
var day = (int)model.DayOfMonth;
var desiredDate = DateTime.MinValue;
do
{
desiredDate = DateMath.GetDate(day, seed);
seed = seed.AddMonths(1);
} while (model.StartDate > desiredDate);
date = desiredDate;
break;
}
case RecurringType.Weekly:
{
// the start date is the minimum date to start
if (model.Days != RecurringDayOfWeek.None)
{
while (!model.Days.Contains(date.DayOfWeek))
{
date = date.AddDays(1);
}
}
else
{
isValid = false;
}
break;
}
}
return(date);
}
public EditRecurringTransactionDialog(IAccountProvider provider)
{
_provider = provider;
_transaction = new RecurringTransaction();
InitializeComponent();
accountNodeBindingSource.DataSource = provider.Accounts;
txtName.DataBindings.Add("Text", _transaction, "Name");
numAmount.DataBindings.Add("Value", _transaction, "Amount");
numInterest.DataBindings.Add("Value", _transaction, "Interest");
cboFrom.DataBindings.Add("EditValue", _transaction, "FromAccountId");
cboTo.DataBindings.Add("EditValue", _transaction, "ToAccountId");
}
public static void OverwriteWith(this RecurringTransaction target, RecurringTransaction data)
{
target.Name = data.Name;
target.Amount = data.Amount;
target.Interest = data.Interest;
target.ValueType = data.ValueType;
target.FromAccountId = data.FromAccountId;
target.ToAccountId = data.ToAccountId;
target.DayOfMonth = data.DayOfMonth;
target.DayOfMonth2 = data.DayOfMonth2;
target.Days = data.Days;
target.EndDate = data.EndDate;
target.EndType = data.EndType;
target.MaxOccurrences = data.MaxOccurrences;
target.Period = data.Period;
target.StartDate = data.StartDate;
target.Type = data.Type;
}
public static IEnumerable <DateTime> GenerateDates(this RecurringTransaction model, DateTime date, DateTime max)
{
var isDay1 = true;
var week = new Queue <DateTime>(DateMath.GetWeek(date));
week.Dequeue();
var dateCount = 0;
while (date < max)
{
if (model.EndType == RecurringEndType.ByDate && date.Date >= model.EndDate)
{
break;
}
yield return(date.Date);
++dateCount;
if (model.Type == RecurringType.Once)
{
// that's it
break;
}
if (model.EndType == RecurringEndType.ByCount && dateCount >= model.MaxOccurrences)
{
break;
}
switch (model.Type)
{
case RecurringType.Daily:
{
date = date.AddDays(model.Period);
break;
}
case RecurringType.Monthly:
{
var seed = date.AddMonths(model.Period);
date = DateMath.GetDate((int)model.DayOfMonth, seed);
break;
}
case RecurringType.SemiMonthly:
{
if (isDay1)
{
// the current date is day1, so get day2
date = DateMath.GetDate((int)model.DayOfMonth2, date);
isDay1 = false;
}
else
{
// get day1 again
var seed = date.AddMonths(model.Period);
date = DateMath.GetDate((int)model.DayOfMonth, seed);
isDay1 = true;
}
break;
}
case RecurringType.Weekly:
{
while (week.Count > 0)
{
date = week.Dequeue();
if (model.Days.Contains(date.DayOfWeek))
{
break;
}
}
if (week.Count == 0 && !model.Days.Contains(date.DayOfWeek))
{
// we've gone through the week; no more dates left
// so start over again at next week
date = date.AddDays(-6).AddDays(7 * model.Period);
while (!model.Days.Contains(date.DayOfWeek))
{
date = date.AddDays(1);
}
week = new Queue <DateTime>(DateMath.GetWeek(date));
week.Dequeue();
}
break;
}
}
}
}
