private void PrintEachPeriodDetails(DateTime startDate, DateTime endDate, TimeSpan days, Interest dtss, double dikeopratikos, double yperimerias)
{
Console.WriteLine("Start date: {0, -6} | End date: {1, -5} | days: {2, -3}", startDate.ToString("MMM d, yyyy"), endDate.ToString("MMM d, yyyy"), days.Days);
Console.WriteLine("Dikeopratikos rate: {0, -5} | Interest: {1, -5:C2}", dtss.DikeopratikosTokos, dikeopratikos);
Console.WriteLine("Yperimerias rate: {0, -5} | Interest: {1, -5:C2}", dtss.TokosYperimerias, yperimerias);
Console.WriteLine();
}
public void ShowMenu()
{
// Array with predifend dates and rates
Interest[] dtss = new Interest[] { new Interest(new DateTime(2000, 01, 01), new DateTime(2000, 01, 16), 0.19, 0.21),
new Interest(new DateTime(2000, 01, 17), new DateTime(2000, 01, 26), 0.165, 0.185),
new Interest(new DateTime(2000, 01, 27), new DateTime(2000, 03, 08), 0.16, 0.18),
new Interest(new DateTime(2000, 03, 09), new DateTime(2000, 04, 19), 0.1525, 0.1725),
new Interest(new DateTime(2000, 04, 20), new DateTime(2000, 06, 28), 0.145, 0.165),
new Interest(new DateTime(2000, 06, 29), new DateTime(2000, 09, 05), 0.14, 0.16),
new Interest(new DateTime(2000, 09, 06), new DateTime(2000, 11, 14), 0.1325, 0.1525),
new Interest(new DateTime(2000, 11, 15), new DateTime(2000, 11, 28), 0.1275, 0.1475),
new Interest(new DateTime(2000, 11, 29), new DateTime(2000, 12, 12), 0.1225, 0.1425),
new Interest(new DateTime(2000, 12, 13), new DateTime(2000, 12, 26), 0.1150, 0.1350),
new Interest(new DateTime(2000, 12, 27), new DateTime(2001, 05, 10), 0.1075, 0.1275),
new Interest(new DateTime(2001, 05, 11), new DateTime(2001, 08, 30), 0.1050, 0.1250),
new Interest(new DateTime(2001, 08, 31), new DateTime(2001, 09, 17), 0.1025, 0.1225),
new Interest(new DateTime(2001, 09, 18), new DateTime(2001, 11, 08), 0.0975, 0.1175),
new Interest(new DateTime(2001, 11, 09), new DateTime(2002, 12, 05), 0.0925, 0.1125),
new Interest(new DateTime(2002, 12, 06), new DateTime(2003, 03, 06), 0.0875, 0.1075),
new Interest(new DateTime(2003, 03, 07), new DateTime(2003, 06, 05), 0.0850, 0.105),
new Interest(new DateTime(2003, 06, 06), new DateTime(2005, 12, 05), 0.080, 0.10),
new Interest(new DateTime(2005, 12, 06), new DateTime(2006, 03, 07), 0.0825, 0.1025),
new Interest(new DateTime(2006, 03, 08), new DateTime(2006, 06, 14), 0.0850, 0.1050),
new Interest(new DateTime(2006, 06, 15), new DateTime(2006, 08, 08), 0.0875, 0.1075),
new Interest(new DateTime(2006, 08, 09), new DateTime(2006, 10, 10), 0.09, 0.11),
new Interest(new DateTime(2006, 10, 11), new DateTime(2006, 12, 12), 0.0925, 0.1125),
new Interest(new DateTime(2006, 12, 13), new DateTime(2007, 03, 13), 0.0950, 0.1150),
new Interest(new DateTime(2007, 03, 14), new DateTime(2007, 06, 12), 0.0975, 0.1175),
new Interest(new DateTime(2007, 06, 13), new DateTime(2008, 07, 08), 0.10, 0.12),
new Interest(new DateTime(2008, 07, 09), new DateTime(2008, 10, 07), 0.1025, 0.1225),
new Interest(new DateTime(2008, 10, 08), new DateTime(2008, 10, 08), 0.0975, 0.1175),
new Interest(new DateTime(2008, 10, 09), new DateTime(2008, 11, 11), 0.0925, 0.1125),
new Interest(new DateTime(2008, 11, 12), new DateTime(2008, 12, 09), 0.0875, 0.1075),
new Interest(new DateTime(2008, 12, 10), new DateTime(2009, 03, 10), 0.08, 0.10),
new Interest(new DateTime(2009, 03, 11), new DateTime(2009, 04, 07), 0.075, 0.095),
new Interest(new DateTime(2009, 04, 08), new DateTime(2009, 05, 12), 0.0725, 0.0925),
new Interest(new DateTime(2009, 05, 13), new DateTime(2011, 04, 12), 0.0675, 0.0875),
new Interest(new DateTime(2011, 04, 13), new DateTime(2011, 07, 12), 0.07, 0.09),
new Interest(new DateTime(2011, 07, 13), new DateTime(2011, 11, 08), 0.0725, 0.0925),
new Interest(new DateTime(2011, 11, 09), new DateTime(2011, 12, 13), 0.07, 0.09),
new Interest(new DateTime(2011, 12, 14), new DateTime(2012, 07, 10), 0.0675, 0.0875),
new Interest(new DateTime(2012, 07, 11), new DateTime(2013, 05, 07), 0.065, 0.0850),
new Interest(new DateTime(2013, 05, 08), new DateTime(2013, 11, 12), 0.06, 0.08),
new Interest(new DateTime(2013, 11, 13), new DateTime(2014, 06, 10), 0.0575, 0.0775),
new Interest(new DateTime(2014, 06, 11), new DateTime(2014, 09, 09), 0.054, 0.074),
new Interest(new DateTime(2014, 09, 10), new DateTime(2016, 03, 15), 0.053, 0.073),
new Interest(new DateTime(2016, 03, 16), new DateTime(2019, 12, 31), 0.053, 0.073) };
while (true)
{
double capital;
#region Insert capital and dates Section
Console.WriteLine("Online Interest Calculator");
Console.WriteLine("Insert the total amount");
while (!double.TryParse(Console.ReadLine(), out capital))
{
Console.WriteLine("You did not enter a valid number");
Console.WriteLine("Enter a valid total amount");
}
Console.WriteLine("Enter the Start Date dd/mm/yyyy");
Console.WriteLine("choose between 01/01/2000 and 31/12/2019");
DateTime startDate;
while (!DateTime.TryParse(Console.ReadLine(), out startDate) || startDate < new DateTime(2000, 01, 01))
{
Console.WriteLine("The Start date in not valid");
Console.WriteLine("Please insert again the start date");
}
Console.WriteLine("Enter the End Date dd/mm/yyyy");
Console.WriteLine("choose between 01/01/2000 and 31/12/2019");
DateTime endDate;
while (!DateTime.TryParse(Console.ReadLine(), out endDate) || endDate > new DateTime(2019, 12, 31) || endDate.CompareTo(startDate) <= 0)
{
Console.WriteLine("Please pick a correct date");
Console.Write("Enter again the End date ");
Console.WriteLine();
}
#endregion
TimeSpan days;
double Dikeopratikos = 0;
double Yperimerias = 0;
// Rates Calculations
for (int i = 0; i < dtss.Length; i++)
{
double local_store1 = 0;
double local_store2 = 0;
if (startDate >= dtss[i].StartDate)
{
if (endDate.Date <= dtss[i].EndDate.Date)
{
days = endDate.AddDays(1).Subtract(startDate);
Dikeopratikos = Calculate_Dikeopratikos_Tokos(capital, dtss[i].DikeopratikosTokos, days);
Yperimerias = Calculate_Tokos_Yperimerias(capital, dtss[i].TokosYperimerias, days);
PrintEachPeriodDetails(startDate, endDate, days, dtss[i], Dikeopratikos, Yperimerias);
local_store1 += Dikeopratikos;
local_store2 += Yperimerias;
PrintTotalAmount(capital, local_store1, local_store2);
}
else if (endDate > dtss[i].EndDate)
{
//in this section the algorythim is devided in three sections
//First period - rates
days = dtss[i].EndDate.AddDays(1).Subtract(startDate);
Dikeopratikos = Calculate_Dikeopratikos_Tokos(capital, dtss[i].DikeopratikosTokos, days);
Yperimerias = Calculate_Tokos_Yperimerias(capital, dtss[i].TokosYperimerias, days);
local_store1 += Dikeopratikos;
local_store2 += Yperimerias;
PrintEachPeriodDetails(startDate, dtss[i].EndDate, days, dtss[i], Dikeopratikos, Yperimerias);
Console.WriteLine();
//Middle period - rates
for (int j = 0; j < dtss.Length; j++)
{
if (startDate < dtss[j].StartDate && endDate > dtss[j].EndDate)
{
days = dtss[j].EndDate.AddDays(1).Subtract(dtss[j].StartDate);
Dikeopratikos = Calculate_Dikeopratikos_Tokos(capital, dtss[j].DikeopratikosTokos, days);
Yperimerias = Calculate_Tokos_Yperimerias(capital, dtss[j].TokosYperimerias, days);
PrintEachPeriodDetails(dtss[j].StartDate, dtss[j].EndDate, days, dtss[j], Dikeopratikos, Yperimerias);
Console.WriteLine();
local_store1 += Dikeopratikos;
local_store2 += Yperimerias;
}
}
//Last period - rates
for (int z = dtss.Length - 1; z >= 0; z--)
{
if (z - 1 > 0 && endDate <= dtss[z].EndDate && endDate >= dtss[z].StartDate)
{
days = endDate.AddDays(1).Subtract(dtss[z].StartDate);
Dikeopratikos = Calculate_Dikeopratikos_Tokos(capital, dtss[z].DikeopratikosTokos, days);
Yperimerias = Calculate_Tokos_Yperimerias(capital, dtss[z].TokosYperimerias, days);
PrintEachPeriodDetails(dtss[z].StartDate, endDate, days, dtss[z], Dikeopratikos, Yperimerias);
local_store1 += Dikeopratikos;
local_store2 += Yperimerias;
PrintTotalAmount(capital, local_store1, local_store2);
}
}
}
}
}
}
}