/// <summary>
/// Initializes a new instance of the <see cref="MonthSummaryViewModel"/> class.
/// </summary>
/// <param name="model">The first measurement for this month.</param>
public MonthSummaryViewModel(Measurement measurement)
{
this.model = new MonthSummary();
this.model.Month = new DateTime(measurement.DateTime.Year, measurement.DateTime.Month, 1);
this.model.TotalMeasures = 1;
this.model.TotalGlucose = measurement.GlucoseValue;
this.model.TotalInsuline = measurement.InsulineUnits;
}
/// <summary>
/// Calculates the summary for this month.
/// </summary>
/// <returns><see cref="MonthSummary"/> with this month's totals and averages.</returns>
public MonthSummary CalculateSummary()
{
var summary = new MonthSummary()
{
Month = new DateTime(this.Year, this.Month, 1),
TotalMeasures = this.Measurements.Count,
TotalGlucose = this.Measurements.Sum(m => m.GlucoseValue),
TotalInsuline = this.Measurements.Sum(m => m.InsulineUnits)
};
var dayMeasurements = from m in this.Measurements
orderby m.DateTime descending
group m by m.DateTime.Day into measurementsByDay
select measurementsByDay;
summary.MonthlyDayGlucoAverage = Convert.ToInt32(Math.Round(dayMeasurements.Average(d => d.Average(m => m.GlucoseValue))));
summary.DailyAverageInsuline = Convert.ToInt32(Math.Round(dayMeasurements.Average(d => d.Sum(m => m.InsulineUnits))));
return summary;
}
/// <summary>
/// Initializes a new instance of the <see cref="MonthSummaryViewModel"/> class.
/// </summary>
public MonthSummaryViewModel()
{
this.model = new MonthSummary();
}
/// <summary>
/// Initializes a new instance of the <see cref="MonthSummaryViewModel"/> class.
/// </summary>
/// <param name="model">The underlying model.</param>
public MonthSummaryViewModel(MonthSummary model)
{
this.model = model;
}
/// <summary>
/// Updates the summary.
/// </summary>
/// <param name="monthSummary">The month summary.</param>
/// <returns></returns>
internal static async Task UpdateSummary(MonthSummary monthSummary)
{
var viewModel = new MonthSummaryViewModel(monthSummary);
var oldSummary = SummaryData.FindItemByMonth(monthSummary.Month);
if (oldSummary != null)
{
SummaryData.Remove(oldSummary);
}
SummaryData.Add(viewModel);
SummaryData.OrderByMonthDesc();
await StorageManager.WriteSummaryDataAsync(SummaryData.Select(d => d.Model));
}