async Task<double> GetOrderTotalForCategoryAsync(IEnumerable<Order> orders, CatalogCategory category, int numberOfWeeks = 6, bool isOpen = false)
{
double total = 0;
var categoryProducts = await _CatalogClient.GetAllChildProductsAsync(category.Id);
DateTime dateEnd = DateTime.UtcNow;
DateTime dateStart = dateEnd.AddDays(-numberOfWeeks * 7);
IEnumerable<Order> results;
if (isOpen)
{
results = orders.Where(
order => order.IsOpen == isOpen &&
order.OrderDate >= dateStart &&
order.OrderDate <= dateEnd &&
categoryProducts.Any(product => product.Name.ToLower() == order.Item.ToLower()));
}
else
{
results = orders.Where(
order => order.IsOpen == isOpen &&
order.ClosedDate >= dateStart &&
order.ClosedDate <= dateEnd &&
categoryProducts.Any(product => product.Name.ToLower() == order.Item.ToLower()));
}
foreach (var order in results)
{
total += order.Price;
}
return total;
}
public CategoriesViewModel(CatalogCategory category = null)
{
Category = category;
SubCategories = new ObservableCollection<CatalogCategory>();
_CatalogClient = DependencyService.Get<ICatalogDataClient>();
}