public async Task ExecuteLoadSeedDataCommand()
{
if (IsBusy)
{
return;
}
_dataClient = DependencyService.Get <IUserFoodDataService>();
_chartDataService = DependencyService.Get <IChartDataService>();
IsBusy = true;
Foods = (await _dataClient.GetFoodsAsync()).ToObservableCollection();
CalorieItems = (await _chartDataService.GetWeeklyCaloriesDataPointsAsync(Foods)).ToObservableCollection();
var total = 0.0;
int days = 0;
foreach (var item in CalorieItems)
{
if (item.Value > 0)
{
total += item.Value;
days++;
}
Debug.WriteLine("datecreated {0} Calories {1} Target {2}", item.Name, item.Value, item.Size);
}
AverageCalories = (total / days);
IsBusy = false;
IsInitialized = true;
}
public DiaryDashboardChartViewModel(INavigation navigation = null) : base(navigation)
{
_DataClient = DependencyService.Get <IUserFoodDataService>();
_ChartDataService = DependencyService.Get <IChartDataService>();
Foods = new ObservableCollection <FoodItem>();
WeeklyCaloriesChartDataPoints = new ObservableCollection <ChartDataPoint>();
IsInitialized = false;
}
public FoodDetailViewModel(INavigation navigation = null, FoodItem food = null)
{
if (navigation == null)
{
throw new ArgumentNullException("navigation", "An instance of INavigation must be passed to the FoodDetailViewModel constructor");
}
AppNavigation = navigation;
if (food == null)
{
Food = new FoodItem();
this.Title = TextResources.Foods_NewFood;
}
else
{
Food = food;
this.Title = food.Name.Replace(',', ' ').Substring(0, 20);
}
_DataClient = DependencyService.Get <IUserFoodDataService>();
}
public DiaryDashboardFoodsViewModel(Command pushTabbedFoodPageCommand, INavigation navigation = null)
: base(navigation)
{
PushTabbedFoodPageCommand = pushTabbedFoodPageCommand;
_DataClient = DependencyService.Get <IUserFoodDataService>();
Foods = new ObservableCollection <FoodItem>();
MessagingCenter.Subscribe <FoodItem>(this, MessagingServiceConstants.SAVE_FOOD, (food) =>
{
var index = Foods.IndexOf(food);
if (index >= 0)
{
Foods[index] = food;
}
else
{
Foods.Add(food);
}
Foods = new ObservableCollection <FoodItem>(Foods.OrderBy(n => n.Name));
});
IsInitialized = false;
}
public ChartDataService()
{
_userFoodDatabase = DependencyService.Get <IUserFoodDataService>();
}
