Vending machine

using System;

namespace ex07_vending_machine
{
    class Program
    {
        static void Main(string[] args)
        {
            double currentProductValue = 0;
            string productNamePrint = "";
            bool purchiseSuccesful = false;
            //            You task is to calculate the total price of a purchase from a vending machine.Until you receive “Start” you will be
            //given different coins that are being inserted in the machine. You have to sum them in order to have the total money
            //inserted.There is a problem though. ???  Your vending machine only works with 0.1, 0.2, 0.5, 1, and 2 coins.If someone
            //tries to insert some other coins you have to display “Cannot accept { money}” and not add it to the total money. ???? On
            //the next few lines until you receive “End” you will be given products to purchase.Your machine has however only
            //“Nuts”, “Water”, “Crisps”, “Soda”, “Coke”. The prices are: 2.0, 0.7, 1.5, 0.8, 1.0 respectively.If the person tries to
            //purchase a not existing product print “Invalid product”. Be careful that the person may try to purchase a product
            //they don’t have the money for. In that case print “Sorry, not enough money”. If the person purchases a product
            //successfully print “Purchased { product name}”. After the “End” command print the money that are left formatted
            //to the second decimal point in the format “Change: { money left}”.
            string command = "";
            double totalValueOfMoney = 0;
            while ((command = Console.ReadLine()) != "Start")
            {
                double coinInsert = double.Parse(command);
                if (coinInsert == 0.1 || coinInsert == 0.2 || coinInsert == 0.5 || coinInsert == 1 || coinInsert == 2)
                {
                    totalValueOfMoney += coinInsert;
                }
                else
                {
                    Console.WriteLine($"Cannot accept {coinInsert}"); // 1 / 1/ 0.5 / 0.6
                }
             }
            string productName = "";
            while((productName = Console.ReadLine()) != "End" || !(currentProductValue > totalValueOfMoney))
            {

                if(productName == "Nuts")
                {
                    currentProductValue = 2;
                    productNamePrint = "nuts";
                    if (currentProductValue > totalValueOfMoney)
                    {
                        Console.WriteLine($"Sorry, not enough money");
                        purchiseSuccesful = false;
                    }
                    else
                    {
                        totalValueOfMoney -= currentProductValue;
                        purchiseSuccesful = true;
                    }
                }
               else  if (productName == "Water")
                {
                    currentProductValue = 0.7;
                    productNamePrint = "water";
                    if (currentProductValue > totalValueOfMoney)
                    {
                        Console.WriteLine($"Sorry, not enough money");
                        purchiseSuccesful = false;
                    }
                    else
                    {
                        totalValueOfMoney -= currentProductValue;
                        purchiseSuccesful = true;
                    }
                }
              else  if (productName == "Crisps") //2.0, 0.7, 1.5, 0.8, 1.0
                {
                    currentProductValue = 1.5;
                    productNamePrint = "crisps";
                    if (currentProductValue > totalValueOfMoney)
                    {
                        Console.WriteLine($"Sorry, not enough money");
                        purchiseSuccesful = false;
                    }
                    else
                    {
                        totalValueOfMoney -= currentProductValue;
                        purchiseSuccesful = true;
                    }
                }
                else if (productName == "Soda")
                {
                    currentProductValue = 0.8;
                    productNamePrint = "soda";
                    if (currentProductValue > totalValueOfMoney)
                    {
                        Console.WriteLine($"Sorry, not enough money");
                        purchiseSuccesful = false;
                    }
                    else
                    {
                        totalValueOfMoney -= currentProductValue;
                        purchiseSuccesful = true;
                    }
                }
               else if (productName == "Coke")
                {
                    currentProductValue = 1;
                    productNamePrint = "coke";
                    if (currentProductValue > totalValueOfMoney)
                    {
                        Console.WriteLine($"Sorry, not enough money");
                        purchiseSuccesful = false;
                    }
                    else
                    {
                        totalValueOfMoney -= currentProductValue;
                        purchiseSuccesful = true;
                    }
                }
                else
                {
                    Console.WriteLine($"Invalid product");
                    break;
                }
                if (purchiseSuccesful == true)
                {
                    Console.WriteLine($"Purchased {productNamePrint}");
                }

                
            }

                Console.WriteLine($"Change: {totalValueOfMoney:f2}");

        }
    }
}