public HomePageViewModel()
{
Title = "Home";
Days = new ObservableCollection <Day>();
Recipes = new ObservableCollection <Recipe>();
Ingredients = new ObservableCollection <Ingredient>();
Meals = new ObservableCollection <Meal>();
LoadDaysCommand = new Command(async(TargetDay) => await ExecuteLoadDaysCommand((DateTime)TargetDay));
LoadDaysCommand.Execute(DateTime.Now);
foreach (var day in DayStore.GetItemsAsync().Result)
{
Days.Add(day);
}
foreach (var recipe in RecipeStore.GetItemsAsync().Result)
{
Recipes.Add(recipe);
}
foreach (var ingredient in IngredientStore.GetItemsAsync().Result)
{
Ingredients.Add(ingredient);
}
foreach (var meal in MealStore.GetItemsAsync().Result)
{
Meals.Add(meal);
}
MessagingCenter.Subscribe <NewRecipePage, Recipe>(this, "AddRecipe", async(obj, recipe) =>
{
var newRecipe = recipe as Recipe;
Recipes.Add(newRecipe);
foreach (var Type in newRecipe.Types)
{
foreach (var group in _allGroups)
{
if (group.RecipeGroupType == Type)
{
group.Add(newRecipe);
}
}
}
UpdateListContents();
await RecipeStore.AddItemAsync(newRecipe);
});
MessagingCenter.Subscribe <NewIngredientPage, Ingredient>(this, "AddIngredient", async(obj, ingredient) =>
{
var newIngredient = ingredient as Ingredient;
Ingredients.Add(newIngredient);
await IngredientStore.AddItemAsync(newIngredient);
});
}
async Task ExecuteLoadDaysCommand(DateTime TargetDay)
{
if (IsBusy)
{
return;
}
IsBusy = true;
try
{
if (TargetDay == null)
{
TargetDay = DateTime.Now;
}
Days.Clear();
TargetDay = new DateTime(TargetDay.Year, TargetDay.Month, TargetDay.Day);
Timeframe = new Timeframe(TargetDay);
for (var i = 0; i < Timeframe.EmptyPadding; i++)
{
Days.Add(new Day());
}
var days = await DayStore.GetItemsAsync(true);
int DaysLeft = Timeframe.DayCount;
foreach (var day in days)
{
if (day.Date.CompareTo(Timeframe.FirstDay) >= 0 && DaysLeft > 0)
{
DaysLeft--;
Days.Add(day);
}
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
finally
{
IsBusy = false;
}
}
