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

namespace _64ET5913Basics2
{
    class BasicsLab2
    {
        static void Main(string[] args)
        {
            Console.ForegroundColor = ConsoleColor.Green;
            Console.BackgroundColor = ConsoleColor.Blue;
            Console.WriteLine("Welcome to David's Console for 64ET5913. - Lab 2");
            Console.ResetColor();

            Console.Write("\nPlease enter your name: ");
            Console.BackgroundColor = ConsoleColor.Red;
            Console.ForegroundColor = ConsoleColor.Yellow;
            string name;
            name = Console.ReadLine();
            Console.ResetColor();
            Console.BackgroundColor = ConsoleColor.Blue;
            Console.ForegroundColor = ConsoleColor.Green;
            Console.WriteLine("\nHello, " + name + "!");
            Console.ResetColor();

            lastyear:
            Console.Write("\nPlease enter your last year progamming mark: ");
            Console.BackgroundColor = ConsoleColor.Red;
            Console.ForegroundColor = ConsoleColor.Yellow;
            string lastyear = Console.ReadLine();
            Console.ResetColor();
            int lastyearint;
            if (int.TryParse(lastyear, out lastyearint) == false || lastyearint < 35 || lastyearint > 100)
            {
                Console.WriteLine("\nPlease enter a number in the range of 35-100 only!");
                goto lastyear;
            }
            Console.BackgroundColor = ConsoleColor.Blue;
            Console.ForegroundColor = ConsoleColor.Green;
            Console.WriteLine("\nSo " + name + ", you got " + lastyearint.ToString() + "% last year. Go you!");
            Console.ResetColor();

            thisYear:
            Console.Write("\nSo what are you expected to get this year: ");
            Console.BackgroundColor = ConsoleColor.Red;
            Console.ForegroundColor = ConsoleColor.Yellow;
            string thisYear = Console.ReadLine();
            Console.ResetColor();
            int thisYearint;
            if (int.TryParse(thisYear, out thisYearint) == false || thisYearint < 0 || thisYearint > 100)
            {
                Console.WriteLine("\nPlease enter a number in the range of 0-100 only!");
                goto thisYear;
            }

            Console.BackgroundColor = ConsoleColor.Blue;
            Console.ForegroundColor = ConsoleColor.Yellow;
            if (thisYearint < 40)
            {
                Console.WriteLine("\nFailure.");
            }
            else if (thisYearint >= 40 && thisYearint < 50)
            {
                Console.WriteLine("\nThird Class.");
            }
            else if (thisYearint >= 50 && thisYearint < 60)
            {
                Console.WriteLine("\nLower Second Class");
            }
            else if (thisYearint >= 60 && thisYearint < 70)
            {
                Console.WriteLine("\nUpper Second Class");
            }
            else if (thisYearint >= 70)
            {
                Console.WriteLine("\nFirst Class");
            }

            int markDifference = thisYearint - lastyearint;

            Console.BackgroundColor = ConsoleColor.Blue;
            Console.ForegroundColor = ConsoleColor.Green;
            Console.WriteLine("\nSo a difference of " + markDifference.ToString() + "%, Good Luck!");
            Console.ResetColor();

            Console.WriteLine("\nPress any key to exit...");
            Console.ReadKey();
        }
    }
}