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

namespace miniräknare_anrop
{
    class Program
    {

        static void plus()
        {
           Console.Clear();
           Console.WriteLine("Addition: Välj term nummer 1");
           double term1 = Convert.ToDouble(Console.ReadLine());
           Console.WriteLine("Addition: Välj term nummer 2");
           double term2 = Convert.ToDouble(Console.ReadLine());
           Console.Write(term1 + " + " + term2 + " = ");
           Console.Write(term1 + term2);
           Console.ReadKey();
           Console.Clear();
        }

        static void minus()
        {
            Console.Clear();
            Console.WriteLine("Subtraktion: Välj term nummer 1");
            double term1 = Convert.ToDouble(Console.ReadLine());
            Console.WriteLine("Subtraktion: Välj term nummer 2");
            double term2 = Convert.ToDouble(Console.ReadLine());
            Console.Write(term1 + " - " + term2 + " = ");
            Console.Write(term1 - term2);
            Console.ReadKey();
            Console.Clear();
        }

        static void multi()
        {
            Console.Clear();
            Console.WriteLine("Multiplikation: Välj produkt nummer 1");
            double produkt1 = Convert.ToDouble(Console.ReadLine());
            Console.WriteLine("Multiplikation: Välj produkt nummer 2");
            double produkt2 = Convert.ToDouble(Console.ReadLine());
            Console.Write(produkt1 + " * " + produkt2 + " = ");
            Console.Write(produkt1 * produkt2);
            Console.ReadKey();
            Console.Clear();
        }

        static void divi()
        {
            Console.Clear();
            Console.WriteLine("Division: Välj nämnare");
            double namnare = Convert.ToDouble(Console.ReadLine());
            Console.WriteLine("Division: Välj täljare");
            double taljare = Convert.ToDouble(Console.ReadLine());
            Console.Write(namnare + " / " + taljare + " = ");
            Console.Write(namnare / taljare);
            Console.ReadKey();
            Console.Clear();
        }

        static void Main(string[] args)
        {

            while (true)
            {
                Console.WriteLine("Miniräknare: Välj räknesätt + - * / ");
                string raknesatt = Console.ReadLine();

                if (raknesatt == "+" || raknesatt == "plus" || raknesatt == "addition")
                {
                    plus();
                }
                else if (raknesatt == "-" || raknesatt == "minus" || raknesatt == "subtration")
                {
                    minus();
                }
                else if (raknesatt == "*" || raknesatt == "gånger" || raknesatt == "multiplikation")
                {
                    multi();
                }
                else if (raknesatt == "/" || raknesatt == "delat" || raknesatt == "division")
                {
                    divi();
                }
                else
                {
                    Console.WriteLine("Ogilitgt alternativ");
                }
            }

        }
    }
}