public AddBarcodeViewModel(IEventAggregator eventAggregator, IDatabaseHandlerService databaseHandlerService, IProductsViewModel productsViewModel, Product product)
{
this.eventAggregator = eventAggregator;
this.databaseHandlerService = databaseHandlerService;
this.productsViewModel = productsViewModel;
Product = product;
}
public AddQuantityViewModel(IEventAggregator eventAggregator, IDatabaseHandlerService databaseHandlerService, IProductsViewModel productsViewModel, Product product)
{
this.eventAggregator = eventAggregator;
this.databaseHandlerService = databaseHandlerService;
this.productsViewModel = productsViewModel;
this.product = product;
AddQuantityCommand = new DelegateCommand<Window>(AddQuantity);
}
public void AddBarcodeAsync(Product originalProduct, Barcode barcode)
{
using (var worker = new BackgroundWorker())
{
worker.DoWork += (object sender, DoWorkEventArgs e) =>
{
using (var context = new EugenieEntities(connectionStringAsString))
{
var product = context.Products.FirstOrDefault(x => x.ID == originalProduct.ID);
product.Barcodes.Add(barcode);
context.SaveChanges();
}
};
worker.RunWorkerAsync();
}
}
private void OnProductChangedEvent(int id)
{
product = productsViewModel.AllProducts.FirstOrDefault(x => x.ID == id);
if (product == null)
{
SaveChangesCommand = new DelegateCommand<object>(SaveChanges, s => false);
Name = null;
BuyingPrice = null;
SellingPrice = null;
return;
}
SaveChangesCommand = new DelegateCommand<object>(SaveChanges);
OpenAddQuantityWindowCommand = new DelegateCommand<object>(OpenAddQuantityWindow);
OpenAddBarcodeWindowCommand = new DelegateCommand<object>(OpenAddBarcodeWindow);
Name = product.Name;
BuyingPrice = $"{product.BuyingPrice:0.00}";
SellingPrice = $"{product.SellingPrice:0.00}";
}
public void UpdateProductAsync(Product originalProduct, double quantity = 0)
{
using (var worker = new BackgroundWorker())
{
worker.DoWork += (object sender, DoWorkEventArgs e) =>
{
using (var context = new EugenieEntities(connectionStringAsString))
{
var product = context.Products.FirstOrDefault(x => x.ID == originalProduct.ID);
product.Name = originalProduct.Name;
product.BuyingPrice = originalProduct.BuyingPrice;
product.SellingPrice = originalProduct.SellingPrice;
product.Measure = originalProduct.Measure;
product.Quantity += quantity;
context.SaveChanges();
}
};
worker.RunWorkerAsync();
}
}
public void DeleteProductAsync(Product originalProduct)
{
using (var worker = new BackgroundWorker())
{
worker.DoWork += (s, e) =>
{
using (var context = new EugenieEntities(connectionStringAsString))
{
var product = context.Products.FirstOrDefault(x => x.ID == originalProduct.ID);
var barcodes = product.Barcodes.ToList();
foreach (var barcode in barcodes)
{
context.Barcodes.Remove(barcode);
}
var shipments = product.Shipments.ToList();
foreach (var shipment in shipments)
{
context.Shipments.Remove(shipment);
}
var expirationDates = product.ExpirationDates.ToList();
foreach (var date in expirationDates)
{
context.ExpirationDates.Remove(date);
}
context.Products.Remove(product);
context.SaveChanges();
}
};
worker.RunWorkerAsync();
}
}
public void AddShipmentAsync(Product product, double quantity)
{
using (var worker = new BackgroundWorker())
{
worker.DoWork += (object sender, DoWorkEventArgs e) =>
{
using (var context = new EugenieEntities(connectionStringAsString))
{
var shipment = new Shipment();
shipment.Quantity = quantity;
shipment.Date = DateTime.Today;
shipment.ProductID = product.ID;
var existingShipment =
context.Shipments.FirstOrDefault(
x => x.ProductID == shipment.ProductID && x.Date.CompareTo(DateTime.Today) == 0);
if (existingShipment == null)
{
context.Shipments.Add(shipment);
}
else
{
existingShipment.Quantity += shipment.Quantity;
}
context.SaveChanges();
}
};
worker.RunWorkerAsync();
}
}
public void AddProductAsync(Product originalProduct)
{
using (var worker = new BackgroundWorker())
{
worker.DoWork += (object sender, DoWorkEventArgs e) =>
{
using (var context = new EugenieEntities(connectionStringAsString))
{
context.Products.Add(originalProduct);
context.SaveChanges();
}
};
worker.RunWorkerAsync();
}
}
private void SetSelectedItemToFirst()
{
if (CurrentProducts.Count() != 0)
{
SelectedItem = CurrentProducts.First();
}
}
public void UpdateProduct(Product productToUpdate)
{
var oldProduct = AllProducts.FirstOrDefault(x => x.ID == productToUpdate.ID);
if (oldProduct != null)
{
AllProducts.Remove(oldProduct);
}
AllProducts.Add(productToUpdate);
RepeatSearch();
}