using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Threading.Tasks;

namespace currencyConverter
{
    class Program
    {
        static void Main(string[] args)
        {


            Console.WriteLine("Hello, Temenuzhka!");


            int amount = 1;
            string from;

            double usdToBgn = 1.66;
            double eurToBgn = 1.96;
            double gbpToBgn = 2.28;

            double usdToEur = 0.85;
            double bgnToEur = 0.51;
            double gbpToeur = 1.17;

            double eurToUsd = 1.18;
            double bgnToUsd = 0.60;
            double gbpToUsd = 1.38;

            double bgnToGbp = 0.44;
            double usdToGbp = 0.73;
            double eurToGbp = 0.86;





            while (amount != 0)
            //&& string from=="USD" || from=="BGN"|| from=="GBP"|| from=="EUR")
            {

                Console.WriteLine("Enter amount:");
                amount = int.Parse(Console.ReadLine());
                if (amount == 0)
                {
                    Console.WriteLine("Invalid amount!");

                    break;
                }
                else
                {

                    Console.WriteLine("From what currency: ");
                    from = Console.ReadLine();


                    switch (from)
                    {



                        case "EUR":
                            //(from == "EUR".ToLower())
                            {

                                Console.WriteLine("USD:" + (eurToUsd * amount) + DateTime.Now.ToString(" dd MMMM yyyy HH:mm:ss"));

                                Console.WriteLine("BGN:" + (eurToBgn * amount) + DateTime.Now.ToString(" dd MMMM yyyy HH:mm:ss"));

                                Console.WriteLine("GBP:" + (eurToGbp * amount) + DateTime.Now.ToString(" dd MMMM yyyy HH:mm:ss"));
                                break;
                            }
                        case "USD":

                            //(from == "USD".ToLower())
                            {

                                Console.WriteLine("EUR:" + (usdToEur * amount) + DateTime.Now.ToString(" dd MMMM yyyy HH:mm:ss"));

                                Console.WriteLine("BGN:" + (usdToBgn * amount) + DateTime.Now.ToString(" dd MMMM yyyy HH:mm:ss"));

                                Console.WriteLine("GBP:" + (usdToGbp * amount) + DateTime.Now.ToString(" dd MMMM yyyy HH:mm:ss"));
                                break;
                            }
                        case "BGN":

                            //while (from == "BGN".ToLower())
                            {

                                Console.WriteLine("EUR:" + (bgnToEur * amount) + DateTime.Now.ToString(" dd MMMM yyyy HH:mm:ss"));

                                Console.WriteLine("USD:" + (bgnToUsd * amount) + DateTime.Now.ToString(" dd MMMM yyyy HH:mm:ss"));

                                Console.WriteLine("GBP:" + (bgnToGbp * amount) + DateTime.Now.ToString(" dd MMMM yyyy HH:mm:ss"));
                                break;
                            }
                        case "GBP":
                            //while (from == "GBP".ToLower())
                            {

                                Console.WriteLine("EUR:" + (gbpToeur * amount) + DateTime.Now.ToString(" dd MMMM yyyy HH:mm:ss"));

                                Console.WriteLine("BGN:" + (gbpToBgn * amount) + DateTime.Now.ToString(" dd MMMM yyyy HH:mm:ss"));

                                Console.WriteLine("USD:" + (gbpToUsd * amount) + DateTime.Now.ToString(" dd MMMM yyyy HH:mm:ss"));
                                break;
                            }


                        default:

                            Console.WriteLine("Unknown conversion");
                            Console.WriteLine("Please enter valid currency: ");
                            from = Console.ReadLine();

                            break;

                    }



                }



            }
        }
    }
}