public decimal GetTotalPrice()
{
if (!Journeys.Any())
{
return(default(decimal));
}
return(Journeys.Sum(x => x.Price));
}
public bool IsAnythingToSave()
{
return(Journeys.Any(x => x.Journey.HasBeenChanged));
}
public bool IsAlreadyFlew()
{
return(Journeys != null && !Journeys.Any(x => x.DepartureDate > DateTime.UtcNow));
}
public override async void Refresh()
{
base.Refresh();
// Mark View as Refreshing
Refreshing = true;
// Clear Journey Groups
Journeys.Clear();
// Get collection of Journey objects from Journey Service
var journeys = await Services.Host.JourneyService.GetJourneys();
// Dump to array to prevent multiple enumerations
var enumerable = journeys as Journey[] ?? journeys.ToArray();
// Hold todays date
var todaysDate = DateTime.UtcNow.Date;
// Use Todays Date to filter journeys for Today and factory them into JourneyViewModel's
var todaysJourneys = enumerable.Where(j => j.Date.Date == todaysDate).Select(j => new JourneyViewModel(j));
// Dump to array to prevent multiple enumerations.
var todaysJourneyViewModels = todaysJourneys as JourneyViewModel[] ?? todaysJourneys.ToArray();
// Check if there were any journey's today.
if (todaysJourneyViewModels.Any())
{
// Create the JourneyGroup for Today
var todayGroup = new JourneyGroup("Today", todaysDate.Date.ToString());
// Add Todays Journey's to the JourneyGroup
todayGroup.AddRange(todaysJourneyViewModels);
// Add Todays JourneyGroup to the Journey Grousp list
Journeys.Add(todayGroup);
}
// Hold yesterdays date
var yesterdaysDate = DateTimeOffset.UtcNow.AddDays(-1).Date;
// Use Yesterdays Date to filter journeys for Yesterday and factory them into JourneyViewModel's
var yesterdaysJourneys =
enumerable.Where(j => j.Date.Date == yesterdaysDate)
.Select(j => new JourneyViewModel(j));
// Dump to array to prevent multiple enumerations.
var yesterdaysJourneyViewModels = yesterdaysJourneys as JourneyViewModel[] ?? yesterdaysJourneys.ToArray();
// Check if there were any journey's yesterday.
if (yesterdaysJourneyViewModels.Any())
{
// Create the JourneyGroup for Yesterday
var yesterdayGroup = new JourneyGroup("Yesterday", yesterdaysDate.Date.ToString());
// Add Yesterdays Journey's to the JourneyGroup
yesterdayGroup.AddRange(yesterdaysJourneyViewModels);
// Add Yesterdays JourneyGroup to the Journey Grousp list
Journeys.Add(yesterdayGroup);
}
// Hold Last Weeks date
var lastWeeksDate = DateTimeOffset.UtcNow.Date.AddDays(-7).StartOfWeek(DayOfWeek.Sunday);
// Use Yesterdays Date and Last Weeks Date to filter journeys for Last Week and factory them into JourneyViewModel's
var lastWeeksJourneys = enumerable.Where(j => j.Date.Date > lastWeeksDate && j.Date.Date < yesterdaysDate)
.Select(j => new JourneyViewModel(j));
// Dump to array to prevent multiple enumerations.
var lastWeeksJourneyViewModels = lastWeeksJourneys as JourneyViewModel[] ?? lastWeeksJourneys.ToArray();
// Check if there were any journey's last week.
if (lastWeeksJourneyViewModels.Any())
{
// Create the JourneyGroup for Last Week
var lastWeekGroup = new JourneyGroup("Last Week", lastWeeksDate.Date.ToString());
// Add Last Weeks Journey's to the JourneyGroup
lastWeekGroup.AddRange(lastWeeksJourneyViewModels);
// Add Last Weeks JourneyGroup to the Journey Grousp list
Journeys.Add(lastWeekGroup);
}
// Filter remaining Journeys that havent been dealt with
var remainingJourneys = enumerable.Where(j => j.Date < lastWeeksDate);
// Group journeys by Year
var journeysByYear = remainingJourneys.GroupBy(j => j.Date.Date.Year).Select(g => g.ToList()).ToList();
// Go through years
foreach (var yearsJourneys in journeysByYear)
{
// Group this years Journeys by Month
var journeysByMonth =
yearsJourneys.GroupBy(j => j.Date.Date.Month).Select(g => g.ToList()).ToList();
// Go through months
foreach (var monthsJourneys in journeysByMonth)
{
// Create the JourneyGroup for the Month
var monthsGroup = new JourneyGroup(monthsJourneys.FirstOrDefault().Date.ToString("MMMM", null), monthsJourneys.FirstOrDefault().Date.ToString("MMMM", null));
// Add Journeys to the JourneyGroup
monthsGroup.AddRange(monthsJourneys.Select(j => new JourneyViewModel(j)));
// Add
Journeys.Add(monthsGroup);
}
}
// Set whether there are any journeys
HasJourneys = Journeys.Any();
// Mark View as not Refreshing
Refreshing = false;
}