using System;
using System.Collections.Generic;

namespace Console_App_2
{
    class Program
    {
        static void Main()
        {
            var users = new List<User>
            {
                new User // Riley
                {
                    Username = "rileyhempel",
                    Password = "test",
                    QandA = new QandA()
                    {
                        Question = "What Premier League soccer team do you go for?",
                        Answer = "Chelsea"
                    }
                },

                new User // Steph
                {
                    Username = "stephgolland",
                    Password = "test2",
                 QandA = new QandA()
                    {
                        Question = "What is your favourite animal?",
                        Answer = "Horse"
                    }
                },

                new User // Jordan
                {
                    Username = "jordanberlyn",
                    Password = "test3",
                    QandA = new QandA()
                    {
                        Question = "What state / city do you live in?",
                        Answer = "Queensland Brisbane"
                    }
                },
            };
            // Introduction
            Console.ForegroundColor = ConsoleColor.Cyan;
            Console.WriteLine("Hello!");
            Console.WriteLine("Welcome to the security test.");
            Console.WriteLine("To begin, please enter your Username and Password.");

            // Username
            Console.ForegroundColor = ConsoleColor.DarkCyan;
            Console.WriteLine("Username:");
            Console.ForegroundColor = ConsoleColor.Gray;
            var username = Console.ReadLine();
            var user = users.Find(i => i.Username == username);
            if (user == null)
            {
                Console.ForegroundColor = ConsoleColor.Red;
                Console.WriteLine("Woops! Wrong Username. Try again.");
                Main();
            }

            // Password
            Console.ForegroundColor = ConsoleColor.DarkCyan;
            Console.WriteLine("Password:");
            Console.ForegroundColor = ConsoleColor.Black;
            var password = Console.ReadLine();
            if (password != user.Password)
            {
                Console.ForegroundColor = ConsoleColor.Red;
                Console.WriteLine("Woops! Wrong Password. Try again.");
                Main();
            }

            // Security Question Introduction
            Console.Clear();
            Console.ForegroundColor = ConsoleColor.Cyan;
            Console.WriteLine($"Welcome {user.Username}.");
            Console.WriteLine("Before we allow full access to your account, please take the time to answer the security question.");
            Console.WriteLine("Press 'enter' to continue.");
            Console.ReadLine();
            Console.Clear();

            // Security Question
            Console.ForegroundColor = ConsoleColor.Green;
            Console.WriteLine("Security Question:");
            Console.ForegroundColor = ConsoleColor.Cyan;
            Console.WriteLine($"{user.QandA.Question}");
            Console.ResetColor();
            var answer = Console.ReadLine();
            if (answer != user.QandA.Answer)
            {
                Console.ForegroundColor = ConsoleColor.Red;
                Console.WriteLine("Incorrect answer. Press Enter to log out and try again.");
                Console.ResetColor();
                Console.ReadLine();
                Console.Clear();
                Main();
            }

            // Login
            Console.Clear();
            Console.ForegroundColor = ConsoleColor.Green;
            Console.WriteLine("You have successfully logged in!");
            Console.ForegroundColor = ConsoleColor.Cyan;
            Console.WriteLine("What would you like to do?");
        }

        public class User
        {
            public string Username;
            public string Password;
            public QandA QandA;
        }
        public class QandA // Question and Answer
        {
            public string Question; //
            public string Answer; //
        }
    }
}