public void TestGetAllProducts()
{
var sut = new Homework10();
var result = sut.GetAllProducts();
var products = GetProducts();
result.Should().BeEquivalentTo(products);
}
public void TestAddProductToCart(string productKey, Product expectProduct)
{
var sut = new Homework10();
var products = sut.GetAllProducts();
var product = products.FirstOrDefault(it => it.SKU == productKey);
product.Should().BeEquivalentTo(expectProduct);
}
public void TestGetProductsInCart(List <string> productKeys, List <Product> expectProducts)
{
var sut = new Homework10();
var products = sut.GetAllProducts();
foreach (var key in productKeys)
{
var product = products.FirstOrDefault(it => it.SKU == key);
sut.AddProductToCart(product);
}
var productsInCart = sut.GetProductsInCart();
productsInCart.Should().BeEquivalentTo(expectProducts);
}
static void Main(string[] args)
{
var pos = new Homework10();
var products = pos.GetAllProducts();
var displayProducts = new StringBuilder();
displayProducts.AppendLine("Current product in POS");
displayProducts.AppendLine("\tSKU\tName\t\t\t\tPrice");
foreach (var item in products)
{
displayProducts.AppendLine($"\t{item.SKU,-7} {item.Name,-31} {item.Price.ToString("N2")}");
}
var rules = $"Rules Input{Environment.NewLine}\t'list' to display current product{Environment.NewLine}\t'exit' to exit program{Environment.NewLine}\t'save' to save current cart{Environment.NewLine}\t'load' to load saved cart{Environment.NewLine}\t'<product-SKU>' or '<product-SKU>,<add-to-cart-amount>' to add product(s) to cart";
Console.Write($"Hello Welcome to POS analysis (HomeWork 09){Environment.NewLine}{displayProducts}{Environment.NewLine}{rules}{Environment.NewLine}");
var isContinueInputLedOnScreen = true;
while (isContinueInputLedOnScreen)
{
System.Console.WriteLine($"{new string('=', 60)}{Environment.NewLine}Products in your cart are");
var orderProducts = pos.GetProductsInCart().ToList();
if (orderProducts.Any())
{
var group = orderProducts.GroupBy(it => it.Name);
var index = 1;
foreach (var item in group)
{
System.Console.WriteLine($"{index++}.{item.Key,-30} ({item.Count()}) {item.FirstOrDefault().Price.ToString("N2")}");
}
}
else
{
System.Console.WriteLine($"none");
}
System.Console.WriteLine($"---{Environment.NewLine}Total amount: {orderProducts.Sum(it => it.Price).ToString("N2")} baht");
System.Console.Write("Please input a product key: ");
var input = Console.ReadLine();
switch (input)
{
case "exit": isContinueInputLedOnScreen = false; break;
case "list": System.Console.WriteLine(displayProducts); break;
case "load": System.Console.WriteLine(pos.LoadSavedCart()); break;
case "save": pos.SaveCurrentState(); break;
default:
var inputSplited = input.Split(',');
var productId = inputSplited.FirstOrDefault();
var product = products.FirstOrDefault(it => it.SKU.Equals(productId, StringComparison.CurrentCultureIgnoreCase));
var isProductExist = product != null;
if (!isProductExist)
{
System.Console.WriteLine($"Has not any product's key: {productId} in POS, Please try again");
break;
}
const int MinimumAmount = 1;
var amountText = inputSplited.LastOrDefault();
int.TryParse(amountText, out int amount);
if (amount < MinimumAmount)
{
amount = MinimumAmount;
}
for (int i = 0; i < amount; i++)
{
pos.AddProductToCart(product);
}
break;
}
}
System.Console.WriteLine("Exit program!");
}
static void Main(string[] args)
{
var call = new Homework10();
var amount = double.Parse(getAmount());
var input = " ";
var getAllProduct = call.GetAllProducts().ToList();
var massage = "Current state had been saved!";
while (true)
{
var productsInCart = call.GetProductsInCart().ToList();
var products = productsInCart.GroupBy(it => it.SKU);
Console.WriteLine("Products in your cart are");
if (productsInCart.Capacity == 0)
{
Console.WriteLine("none");
}
else
{
var no = 1;
foreach (var item in products)
{
Console.WriteLine($"{no}.{item.First().Name,-29:G} ({item.Count()}) {item.First().Price,2:N}");
no++;
}
}
Console.WriteLine("---");
Console.WriteLine($"Total amount: {amount,2:N} baht");
Console.Write("Please input a product key: ");
input = Console.ReadLine();
if (string.IsNullOrEmpty(input))
{
break;
}
else if (input == "save")
{
call.SaveCurrentState();
Console.WriteLine(massage);
WriteAmonut(amount.ToString());
}
else if (input.Contains(','))
{
var split = input.Split(',').ToList();
var value = int.TryParse(split[1], out int test) ? int.Parse(split[1]) : 1;
var addToCart = getAllProduct.Find(it => it.SKU == split[0]);
for (int i = 0; i < value; i++)
{
call.AddProductToCart(addToCart);
}
amount += addToCart.Price;
Console.WriteLine();
}
else
{
var addToCart = getAllProduct.Find(it => it.SKU == input);
call.AddProductToCart(addToCart);
amount += addToCart.Price;
Console.WriteLine();
}
}
}