// Always pair this struct with ArduinoVendingMachine/blob/master/src_arduino/entities/product.h
private byte[] ToBytes(ProductRail product)
{
var result = new byte[PRODUCT_SIZE];
var priceDouble = Convert.ToDouble(product.Product.Price);
var priceBytes = BitConverter.GetBytes(priceDouble);
var nameBytes =
product.Product.DisplayName
.PadRight(20)
.Substring(0, 20)
.Select(Convert.ToByte);
//TODO: Review int type inconsistency
result[0] = (byte)product.ProductId;
result[1] = (byte)product.Helix;
result[2] = (byte)product.Count;
result[3] = priceBytes[0];
result[4] = priceBytes[1];
result[5] = priceBytes[2];
result[6] = priceBytes[3];
Array.Copy(
sourceArray: nameBytes.ToArray(),
sourceIndex: 0,
destinationArray: result,
destinationIndex: 7,
length: 20);
return(result);
}
private static async Task PopulateProductRailAsync(VendingMachineDbContext context)
{
if (context.ProductRails.Any())
{
return;
}
var machine = context.Machines.Find(1);
var products = context.Products.ToList();
for (int i = 1; i <= 16; i++)
{
var productRail = new ProductRail
{
Machine = machine,
Helix = i,
Count = 3,
Product = products[i - 1]
};
await context.ProductRails.AddAsync(productRail);
}
}