private async void SaveInput(ReadingInputViewModel newData)
{
if (this.input.ItemId == Guid.Empty)
{
return;
}
var io = ServiceResolver.Resolve <IFileHandler>();
var existingReading = ReadingManager.Find(newData.ItemId);
//reading already exists or was just created, so just update the values.
var item = this.station.Items.FirstOrDefault(i => i.Id == newData.ItemId);
if (newData.IsBooleanInput)
{
existingReading.Value = newData.BooleanValue.ToString();
}
else
{
existingReading.Value = newData.StringValue;
}
existingReading.Comments = newData.Comments;
existingReading.TimeTaken = DateTime.UtcNow;
// Now validate the users input
var validator = ComparisonTypeViewModel.Locate(newData.InputType);
if (validator.UsesOneInput)
{
existingReading.IsOutOfSpec = validator.Validate(
value: existingReading.Value,
max: item.Specification.UpperBound) == false;
}
else
{
existingReading.IsOutOfSpec = validator.Validate(
value: existingReading.Value,
min: item.Specification.LowerBound,
max: item.Specification.UpperBound) == false;
}
//finally, write out the result to file so that way it doesn't get lost.
item.CurrentReading = existingReading;
this.ListModel.SetSelectedAsVisited();
await ReadingManager.SaveReadingsToDiskAsync();
//place binding for completed items here. probably.
}
/// <summary>
/// Initializes a new instance of the <see cref="ReadingInputScreenViewModel"/> class.
/// Represents the full view model for the page.
/// </summary>
public ReadingInputScreenViewModel(RegionModelSource region, StationModel station)
{
var regionNav = new AsyncCommand((obj) =>
{
Navigator.Navigate(Shared.Navigation.NavigationType.StationSelect);
});
this.Save = new AsyncCommand((obj) => this.SaveInput(this.input), this.CanSave);
this.station = station;
this.Crumbs.Add(new BreadcrumbItemModel("Areas", region.NavigateRoot));
this.Crumbs.Add(new BreadcrumbItemModel(region.Name, region.Navigate));
this.Crumbs.Add(new BreadcrumbItemModel(station.Name, station.Navigate));
this.Input = new ReadingInputViewModel(this.Save, null);
this.ListModel = new ReadingInputListViewModel(this);
foreach (var item in station.Items)
{
if (item.StationId == station.Id)
{
var newMeter = new Meter(item.Meter, item)
{
Id = item.Id,
Name = item.Name,
MeterName = item.Meter
};
var currentReading = ReadingManager.Find(item.Id);
newMeter.LastReading = new ReadingInput();
newMeter.TwoReadingsAgo = new ReadingInput();
newMeter.ThreeReadingsAgo = new ReadingInput();
newMeter.FourReadingsAgo = new ReadingInput();
newMeter.ComparisonType = ComparisonTypeViewModel.Locate(item.Specification.ComparisonType);
newMeter.TodaysReading = new ReadingInput()
{
MinimumValue = item.Specification.LowerBound,
MaximumValue = item.Specification.UpperBound,
UnitAbbreviation = item.Specification.UnitOfMeasure.Abbreviation,
ValueBounds = newMeter.ComparisonType.AsEnum(),
IsWithinSpec = false,
};
if (!string.IsNullOrEmpty(currentReading.Value))
{
bool boolVal = false;
if (bool.TryParse(currentReading.Value, out boolVal))
{
newMeter.TodaysReading.BooleanValue = boolVal;
}
else
{
//just a string value.
newMeter.TodaysReading.StringValue = currentReading.Value;
}
newMeter.TodaysReading.IsWithinSpec = !currentReading.IsOutOfSpec;
newMeter.IsComplete = true;
}
var count = item.PastFourReadings.Count();
if (count > 0)
{
newMeter.LastReading.StringValue = item.PastFourReadings.ElementAt(0).Value;
newMeter.LastReading.IsWithinSpec = !item.PastFourReadings.ElementAt(0).IsOutOfSpec;
newMeter.LastReading.Notes = item.PastFourReadings.ElementAt(0).Comments;
}
if (count > 1)
{
newMeter.TwoReadingsAgo.StringValue = item.PastFourReadings.ElementAt(1).Value;
newMeter.TwoReadingsAgo.IsWithinSpec = !item.PastFourReadings.ElementAt(1).IsOutOfSpec;
}
if (count > 2)
{
newMeter.ThreeReadingsAgo.StringValue = item.PastFourReadings.ElementAt(2).Value;
newMeter.ThreeReadingsAgo.IsWithinSpec = !item.PastFourReadings.ElementAt(2).IsOutOfSpec;
}
if (count > 3)
{
newMeter.FourReadingsAgo.StringValue = item.PastFourReadings.ElementAt(3).Value;
newMeter.FourReadingsAgo.IsWithinSpec = !item.PastFourReadings.ElementAt(3).IsOutOfSpec;
}
this.ListModel.Meters.Add(newMeter);
}
}
}