public static String LongestIdleTime(DoublyLinkedList <LogEntry> log)
{
TimeSpan startTime, endTime;
String idle = "";
if (log.Count() == 1 || log.Count == 0)
{
idle = "00:00:00";
}
else
{
for (int i = 0; i < log.Count() - 1; i++)
{
startTime = TimeSpan.ParseExact(log.ItemAt(i).getTime(), @"h\:mm\:ss", CultureInfo.InvariantCulture);
endTime = TimeSpan.ParseExact(log.ItemAt(i + 1).getTime(), @"h\:mm\:ss", CultureInfo.InvariantCulture);
double diffInSeconds = (endTime - startTime).TotalSeconds;
TimeSpan time = TimeSpan.FromSeconds(diffInSeconds);
idle = time.ToString(@"h\:mm\:ss");
}
}
return(idle);
}
//i hate this custom list shit.
public static void Execute(DoublyLinkedList <GeographicalUnit> countries, DoublyLinkedList <LogEntry> log)
{
#region PROMPT
String prompt = "1 – Просмотр таблицы\n2 – Добавить запись\n3 – Удалить запись\n4 – Обновить запись\n5 – Поиск записей\n6 – Просмотреть лог\n7 - Выход";
Console.WriteLine(prompt);
int input = 0;
try
{
input = int.Parse(Console.ReadLine());
}
catch (FormatException)
{
Execute(countries, log);
}
#endregion
switch (input)
{
#region SHOW
case SHOW:
String output = String.Empty;
if (countries.Count == 0)
{
output = ("The list is empty!");
}
else
{
foreach (GeographicalUnit country in countries)
{
output += country.GetInfoTable();
}
}
Console.WriteLine(output);
Execute(countries, log);
break;
#endregion
#region ADD
case ADD:
Console.Write("Please enter the country: ");
string name = Console.ReadLine();
Console.Write("Please enter the capital: ");
string capital = Console.ReadLine();
int population;
while (true)
{
try
{
Console.Write("Please enter the population: ");
population = int.Parse(Console.ReadLine());
if (population < 0)
{
throw new FormatException();
}
break;
}
catch (FormatException)
{
Console.Write("Incorrect input, try again: ");
}
}
GeographicalUnit.FormOfGov form;
while (true)
{
try
{
Console.Write("Please enter the form of government: ");
form = (GeographicalUnit.FormOfGov)Enum.Parse(typeof(GeographicalUnit.FormOfGov), Console.ReadLine().ToUpper());
break;
}
catch (Exception)
{
Console.Write("Incorrect input, try again: ");
}
}
countries.Add(new GeographicalUnit(name, capital, population, form));
Console.WriteLine($"Added {name} to the list.");
log = AddEntry(new LogEntry(name, LogEntry.Action.ADD), log);
Execute(countries, log);
break;
#endregion
#region DELETE
case DELETE:
int entry;
while (true)
{
try
{
Console.WriteLine("Which entry do you want to remove? ");
entry = int.Parse(Console.ReadLine());
if (entry > countries.Count || entry < 1)
{
throw new FormatException();
}
break;
}
catch (FormatException)
{
Console.Write("Incorrect input, try again: ");
}
}
Console.WriteLine($"Removed {countries.ItemAt(entry - 1).GetName()} from the list.");
log = AddEntry(new LogEntry(countries.ItemAt(entry - 1).GetName(), LogEntry.Action.DELETE), log);
countries.Remove(countries.ItemAt(entry - 1));
Execute(countries, log);
break;
#endregion
#region UPDATE
case UPDATE:
while (true)
{
try
{
Console.WriteLine("Which entry do you want to update? ");
entry = int.Parse(Console.ReadLine());
if (entry > countries.Count || entry < 1)
{
throw new FormatException();
}
break;
}
catch (FormatException)
{
Console.Write("Incorrect input, try again: ");
}
}
Console.Write("Please enter the country: ");
name = Console.ReadLine();
Console.Write("Please enter the capital: ");
capital = Console.ReadLine();
while (true)
{
try
{
Console.Write("Please enter the population: ");
population = int.Parse(Console.ReadLine());
if (population < 0)
{
throw new FormatException();
}
break;
}
catch (FormatException)
{
Console.Write("Incorrect input, try again: ");
}
}
while (true)
{
try
{
Console.Write("Please enter the form of government: ");
form = (GeographicalUnit.FormOfGov)Enum.Parse(typeof(GeographicalUnit.FormOfGov), Console.ReadLine().ToUpper());
break;
}
catch (Exception)
{
Console.Write("Incorrect input, try again: ");
}
}
Console.WriteLine($"Updated {name}.");
countries.UpdateAtIndex(new GeographicalUnit(name, capital, population, form), entry - 1);
log = AddEntry(new LogEntry(name, LogEntry.Action.UPDATE), log);
Execute(countries, log);
break;
#endregion
#region SEARCH
case SEARCH:
DoublyLinkedList <GeographicalUnit> old_countries = countries.Clone();
DoublyLinkedList <GeographicalUnit> removeDoublyLinkedList = new DoublyLinkedList <GeographicalUnit>();
Console.WriteLine("Filters: Population size and form of government.");
Console.WriteLine("Choose the filter: ");
if (Console.ReadLine().ToUpper() == "FORM")
{
Console.WriteLine("Federation(F) or Unitary state(US): ");
if (Console.ReadLine().ToUpper() == "F")
{
foreach (GeographicalUnit country in old_countries)
{
if (country.GetForm().Equals(GeographicalUnit.FormOfGov.US))
{
removeDoublyLinkedList.Add(country);
}
}
}
else
{
foreach (GeographicalUnit country in old_countries)
{
if (country.GetForm().Equals(GeographicalUnit.FormOfGov.F))
{
removeDoublyLinkedList.Add(country);
}
}
}
}
else
{
int number;
Console.WriteLine("Less or More: ");
if (Console.ReadLine().ToUpper() == "LESS")
{
while (true)
{
try
{
Console.Write("Less then ");
number = int.Parse(Console.ReadLine());
if (number < 0)
{
throw new FormatException();
}
break;
}
catch (FormatException)
{
Console.Write("Incorrect input, try again: ");
}
}
foreach (GeographicalUnit country in old_countries)
{
if (country.GetPopulation() > number)
{
removeDoublyLinkedList.Add(country);
}
}
}
else
{
while (true)
{
try
{
Console.Write("More then ");
number = int.Parse(Console.ReadLine());
if (number < 0)
{
throw new FormatException();
}
break;
}
catch (FormatException)
{
Console.Write("Incorrect input, try again: ");
}
}
foreach (GeographicalUnit country in old_countries)
{
if (country.GetPopulation() < number)
{
removeDoublyLinkedList.Add(country);
}
}
}
}
foreach (GeographicalUnit country in removeDoublyLinkedList)
{
countries.Remove(country);
}
output = "\n--------------------------------------\n";
if (countries.Count == 0)
{
output = ("The list is empty!");
}
else
{
foreach (GeographicalUnit country in countries)
{
output += country.GetInfoTable();
}
}
Console.WriteLine(output);
countries = old_countries.Clone();
Execute(countries, log);
break;
#endregion
#region SHOWLOG
case SHOWLOG:
output = "";
foreach (LogEntry i in log)
{
output += i.logFormatted() + "\n";
}
output += ($"\n{LongestIdleTime(log)} - Самый долгий период бездействия пользователя");
Console.WriteLine(output);
Execute(countries, log);
break;
#endregion
#region EXIT
case EXIT:
return;
#endregion
}
}