private string ProccessAddEventCommand(Command command, string result)
{
if ((command.Name == "AddEvent"))
{
if (command.Parameters.Length == 2)
{
DateTime date = DateTime.ParseExact(
command.Parameters[0], DATE_FORMAT, CultureInfo.InvariantCulture);
CalendarEvent calendarEvent =
new CalendarEvent(date, command.Parameters[1], null);
this.EventManager.AddEvent(calendarEvent);
result = "Event added";
}
else if (command.Parameters.Length == 3)
{
DateTime date = DateTime.ParseExact(
command.Parameters[0], DATE_FORMAT, CultureInfo.InvariantCulture);
CalendarEvent calendarEvent =
new CalendarEvent(date, command.Parameters[1], command.Parameters[2]);
this.EventManager.AddEvent(calendarEvent);
result = "Event added";
}
}
return result;
}
public string ProcessCommand(Command command)
{
string result = string.Empty;
result = ProccessAddEventCommand(command, result);
result = ProcessDeleteEventsCommand(command, result);
result = ProcessListEventsCommand(command, result);
if (result != string.Empty)
{
return result;
}
else
{
throw new FormatException(
"Invalid input! The program cannot find entered command");
}
}
private string ProcessDeleteEventsCommand(Command command, string result)
{
if ((command.Name == "DeleteEvents") && (command.Parameters.Length == 1))
{
int deletedEvents =
this.EventManager.DeleteEventsByTitle(command.Parameters[0]);
if (deletedEvents == 0)
{
result = "No events found.";
}
else
{
result = string.Format("{0} events deleted", deletedEvents);
}
}
return result;
}
private string ProcessListEventsCommand(Command command, string result)
{
if ((command.Name == "ListEvents") && (command.Parameters.Length == 2))
{
DateTime date = DateTime.ParseExact(
command.Parameters[0], DATE_FORMAT, CultureInfo.InvariantCulture);
int numberEvents = int.Parse(command.Parameters[1]);
List<CalendarEvent> listOfEvents =
this.EventManager.ListEvents(date, numberEvents).ToList();
var sb = new StringBuilder();
if (!listOfEvents.Any())
{
result = "No events found";
}
else
{
foreach (var item in listOfEvents)
{
sb.AppendLine(item.ToString());
}
result = sb.ToString().Trim();
}
}
return result;
}