static async Task Main(string[] args)
{
// create and configure the service container
IServiceCollection serviceCollection = ConfigureServices();
// build the service provider
IServiceProvider serviceProvider = serviceCollection.BuildServiceProvider();
IUnitOfWork uow = serviceProvider.GetService <IUnitOfWork>();
// get all users
var users = await uow.GetUserRepository().GetAllAsync();
PrintUsers(users);
// get all products
var prods = await uow.GetProductRepository().GetAllAsync();
PrintProducts(prods);
Command cmd;
Command saveCommand = new SaveCommand(uow);
// create carts for users[0] & users[1]
cmd = new CreateCartCommand(users[0]);
cmd.Execute();
cmd = new CreateCartCommand(users[1]);
cmd.Execute();
var cart1 = users[0].Carts.Last();
var cart2 = users[1].Carts.Last();
saveCommand.Execute();
// some operation on npaul's cart
cmd = new AddProductToCartCommand(cart1, prods[0], 5);
cmd.Execute();
cmd = new AddProductToCartCommand(cart1, prods[1], 3);
cmd.Execute();
cmd = new UpdateCartItemQuantityCommand(cart1, prods[0], 6);
cmd.Execute();
saveCommand.Execute();
PrintCart(cart1);
// some operation on jdoe's cart
cmd = new AddProductToCartCommand(cart2, prods[0], 1);
cmd.Execute();
cmd = new AddProductToCartCommand(cart2, prods[1], 3);
cmd.Execute();
cmd = new AddProductToCartCommand(cart2, prods[2], 2);
cmd.Execute();
cmd = new AddProductToCartCommand(cart2, prods[3], 2);
cmd.Execute();
saveCommand.Execute();
PrintCart(cart2);
cmd = new UpdateProductPriceCommand(prods[1], 15);
cmd.Execute();
saveCommand.Execute();
PrintCart(cart1);
PrintCart(cart2);
// cleaning
cmd = new DeleteCartCommand(cart1, uow.GetCartRepository());
cmd.Execute();
cmd = new DeleteCartCommand(cart2, uow.GetCartRepository());
cmd.Execute();
saveCommand.Execute();
cmd = new UpdateProductPriceCommand(prods[1], 17.50);
cmd.Execute();
saveCommand.Execute();
}