using System;
using System.Collections.Generic;
using System.ComponentModel.Design;
using MenuSystem;


namespace ConsoleApp
{
    class Program
    {
        private static double CalculatorCurrentDisplay = 0.0;

        static void Main(string[] args)
        {
            Console.Clear();


            var mainMenu = new Menu("Calculator", EMenuLevel.Root);
            mainMenu.AddMenuItems(new List<MenuItem>()
            {
                new MenuItem("1", "Binary operations", SubmenuBinary),
                new MenuItem("2", "Unary operations", SubmenuUnary),
            });

            mainMenu.Run();
        }

        public static string MethodA()
        {
            Console.WriteLine("Method A!!!!!");
            return "";
        }

        public static string SubmenuBinary()
        {
            var menu = new Menu("Binary", EMenuLevel.First);
            menu.AddMenuItems(new List<MenuItem>()
            {
                new MenuItem("+", "+", Add),
                new MenuItem("-", "-", Subtract),
                new MenuItem("/", "/", Divide),
                new MenuItem("*", "*", Multiplication),
                new MenuItem("x ^ y", "x ^ y", X_power_Y)

            });
            var res = menu.Run();
            return res;
        }

        public static string Add()
        {
            // CalculatorCurrentDisplay
            Console.WriteLine("Current value: " + CalculatorCurrentDisplay);
            Console.WriteLine("plus");
            Console.Write("number: ");
            var n = Console.ReadLine()?.Trim();
            double.TryParse(n, out var converted);

            CalculatorCurrentDisplay = CalculatorCurrentDisplay + converted;
            Console.WriteLine("= " + CalculatorCurrentDisplay);

            return "";
        }

        public static string Subtract() //Minuse
        {
            // CalculatorCurrentDisplay
            Console.WriteLine("Current value: " + CalculatorCurrentDisplay);
            Console.WriteLine("minuse");
            Console.Write("number: ");
            var n = Console.ReadLine()?.Trim();
            double.TryParse(n, out var converted);

            CalculatorCurrentDisplay = CalculatorCurrentDisplay - converted;
            Console.WriteLine("= " + CalculatorCurrentDisplay);

            return "";
        }

        public static string Divide() //Деление
        {
            // CalculatorCurrentDisplay
            Console.WriteLine("Current value: " + CalculatorCurrentDisplay);
            Console.WriteLine("divide");
            Console.Write("number: ");
            var n = Console.ReadLine()?.Trim();
            double.TryParse(n, out var converted);

            CalculatorCurrentDisplay = CalculatorCurrentDisplay / converted;
            Console.WriteLine("= " + CalculatorCurrentDisplay);

            return "";
        }

        public static string Multiplication() //Умножение
        {
            // CalculatorCurrentDisplay
            Console.WriteLine("Current value: " + CalculatorCurrentDisplay);
            Console.WriteLine("multiplication");
            Console.Write("number: ");
            var n = Console.ReadLine()?.Trim();
            double.TryParse(n, out var converted);

            CalculatorCurrentDisplay = CalculatorCurrentDisplay * converted;
            Console.WriteLine("= " + CalculatorCurrentDisplay);


            return "";
        }

        public static string X_power_Y() //x в степени y
        {
            // CalculatorCurrentDisplay
            Console.WriteLine("Current value: " + CalculatorCurrentDisplay);
            Console.WriteLine("X_power_Y");
            Console.Write("number: ");
            var n = Console.ReadLine()?.Trim();
            double.TryParse(n, out var converted);

            CalculatorCurrentDisplay = Math.Pow(CalculatorCurrentDisplay,converted);
            Console.WriteLine("= " + CalculatorCurrentDisplay);


            return "";
        }

        public static string SubmenuUnary()
        {
            var menu = new Menu("Unary", EMenuLevel.First);
            menu.AddMenuItems(new List<MenuItem>()
            {
                new MenuItem("Negate", "Negate", Negative),
                new MenuItem("Square", "Square", Square),
                new MenuItem("Root", "Root", Root),
                new MenuItem("Abs_Value", "Abs_Value", Abs_Value),
            });
            var res = menu.Run();
            return res;
        }

        public static string Negative() //Негативное число
        {
            // CalculatorCurrentDisplay
            Console.WriteLine("Current value: " + CalculatorCurrentDisplay);
            Console.WriteLine("negative");
            Console.Write("number: ");

            CalculatorCurrentDisplay = CalculatorCurrentDisplay * (-1);
            Console.WriteLine("= " + CalculatorCurrentDisplay);

            return "";
        }

        public static string Square() //Возводим в квадрат
        {
            // CalculatorCurrentDisplay
            Console.WriteLine("Current value: " + CalculatorCurrentDisplay);
            Console.WriteLine("square");
            Console.Write("number: ");

            CalculatorCurrentDisplay = CalculatorCurrentDisplay * CalculatorCurrentDisplay;
            Console.WriteLine("= " + CalculatorCurrentDisplay);

            return "";
        }

        public static string Root() //Корень
        {
            // CalculatorCurrentDisplay
            Console.WriteLine("Current value: " + CalculatorCurrentDisplay);
            Console.WriteLine("sqrt");
            Console.Write("number: ");

            CalculatorCurrentDisplay = Math.Sqrt(CalculatorCurrentDisplay);
            Console.WriteLine("= " + CalculatorCurrentDisplay);

            return "";
        }

        public static string Abs_Value() //Из отрицательного в положительное, из положительного в положительное
        {
            // CalculatorCurrentDisplay
            Console.WriteLine("Current value: " + CalculatorCurrentDisplay);
            Console.WriteLine("abs_value");
            Console.Write("number: ");

            CalculatorCurrentDisplay = Math.Abs(CalculatorCurrentDisplay);
            Console.WriteLine("= " + CalculatorCurrentDisplay);

            return "";
        }
    }
}