public ExtractAndPPGModel CalculatePPG(GrainsToBeCalculated grainsInTable, string mashVolume)
{
double extractPPG = 0;
double grainPPG = 0;
double points = 0;
//This loops through all items in the tableview that was passed in
foreach (MashTableRowDataModel element in grainsInTable.ListViewOfGrains)
{
var grainNameLabel = element.SelectedGrain.GrainName;
var ppg = element.SelectedGrain.PPG;
var grainWeight = element.Pounds;
//Calculate the points added to the gravity from ViewCell
points = (ppg - 1) * 1000;
//Depending on grain Type, add the points added to correct ppg type
if (element.SelectedGrain.Type == "Extract")
{
extractPPG += Convert.ToDouble(grainWeight) * points / Convert.ToDouble(mashVolume);
}
else
{
grainPPG += Convert.ToDouble(grainWeight) * points / Convert.ToDouble(mashVolume);
}
}
//return ExtractAndPPGModel containing the extract and grain ppg types
return(new ExtractAndPPGModel()
{
extract = Convert.ToInt16(extractPPG),
grain = Convert.ToInt16(grainPPG)
});
}
public void CalculateSRM(object sender, EventArgs e)
{
var check = grainsAddedListView.ItemsSource as ObservableCollection <MashTableRowDataModel>;
if (check.Count == 0)
{
DisplayAlert("No Grains", "You must add grains to calculate the color of your beer.", "OK");
}
else if (mashVolumeEntry.Text != "0" || mashVolumeEntry.Text != "")
{
GrainsToBeCalculated grainsToBeCalculated = new GrainsToBeCalculated {
ListViewOfGrains = grainsAddedListView.ItemsSource,
MashVolume = mashVolumeEntry.Text
};
MashCalculatedModel calculations = new MashCalculatedModel {
PPGModel = calculateGravity.CalculatePPG(grainsToBeCalculated, mashVolumeEntry.Text),
};
calculateSRM.MashCalculatedModelCalculator(calculations, grainsToBeCalculated, mashVolumeEntry.Text);
Navigation.PushModalAsync(new MashCalculatedResultsPageXAML(calculations));
}
else
{
DisplayAlert("Volume Error", "You must enter a mash volume.", "OK");
}
}
public void MashCalculatedModelCalculator(MashCalculatedModel model, GrainsToBeCalculated calculate, string mashVolume)
{
double totalMCU = 0;
double MCU = 0;
//Loop through TableView to calculate srm color of all grains in TableView passed in from MashCalculatorPage
foreach (MashTableRowDataModel element in calculate.ListViewOfGrains)
{
var srm = element.SelectedGrain.srmColor;
var grainWeight = element.Pounds;
//Calculate MCU of grain in ViewCell
MCU = (Convert.ToDouble(srm) * Convert.ToDouble(grainWeight)) / Convert.ToDouble(mashVolume);
//Add MCU from calculated grain ViewCell
totalMCU += MCU;
}
//Calculate the exact SRM color
double srmColor = 1.4922 * (Math.Pow(MCU, 0.6859));
//Convert the exact SRM to an integer
Int16 srmInt = Convert.ToInt16(srmColor);
//Convert srmInteger to a color
Color finalColor = ConvertIntToColor(srmInt);
//Set model srmInteger and srmColor
model.srmInt = srmInt;
model.srmColor = finalColor;
}
void CalculateIBU(object sender, EventArgs e)
{
if (mashVolumeEntry.Text != "0")
{
GrainsToBeCalculated calculate = new GrainsToBeCalculated {
MashVolume = mashVolumeEntry.Text,
ListViewOfGrains = grainsAddedListView.ItemsSource
};
MashCalculatedModel results = new MashCalculatedModel {
PPGModel = calculateGravity.CalculatePPG(calculate, mashVolumeEntry.Text),
};
calculateSRM.MashCalculatedModelCalculator(results, calculate, mashVolumeEntry.Text);
Navigation.PushModalAsync(new MashCalculatedResultsPage(results));
}
else
{
DisplayAlert("Volume Error", "You must enter a mash volume.", "OK");
}
}
