using System;

namespace CardGame
{
    class Deal
    {
        static void Main()
        {
            bool anotherDeal = false;

            do
            {
                int players = 0;
                while (true)
                {
                    Console.Write("\nHow many players (4 to 6) : ");
                    int.TryParse(Console.ReadLine(), out players);
                    if (players < 4 || players > 6)
                    {
                        Console.WriteLine("Invalid number, try again\n");
                    }
                    else
                    {
                        break;
                    }
                }
                int numCards = 2; // two cards per player

                // create a 2D array to hold cards for each player
                int[,] cards = new int[players, numCards];

                // shuffle a new deck
                Card[] deck = Card.ShuffleDeck();

                // deal same number of cards to each player
                int next = 0;
                for (int i = 0; i < players; i++)
                {
                    for (int j = 0; j < numCards; j++)
                    {
                        cards[i, j] = next; // number of card in deck
                        next++;
                    }
                }

                // display each player's cards
                Console.WriteLine("\nThe cards held by each player are as follows");
                for (int i = 0; i < players; i++)
                {
                    Console.Write("\n  Player {0} :", i + 1);
                    for (int j = 0; j < numCards; j++)
                    {
                        Console.Write("{0,4}", deck[cards[i, j]].ToString());
                    }
                    Console.WriteLine();
                }

                // deal the cards again?
                string answer;
                do
                {
                   Console.Write("\nAnother deal y/n : ");
                   answer = Console.ReadLine().ToLower();
                }
                while (answer != "y" && answer != "n");
                anotherDeal = (answer == "y"); 
            }
            while (anotherDeal);

            Console.Clear();
        }
    }

    public class Card
    {
        static Random rand = new Random();
        string suit;
        int number;

        public string Suit
        {
            get { return suit; }
        }

        public int Number
        {
            get { return number; }
        }
        public Card(string s, int n)
        {
            suit = s;
            number = n;
        }
        private Card(int cardNum)
        {
            switch (cardNum / 13)
            {
                case 0:
                    suit = "clubs";
                    break;
                case 1:
                    suit = "diamonds";
                    break;
                case 2:
                    suit = "hearts";
                    break;
                case 3:
                    suit = "spades";
                    break;
            }
            number = cardNum % 13 + 1;
        }
        public static Card[] ShuffleDeck()
        {
            Card[] deck = new Card[52];
            int[] newCards = new int[52]; // all elements set to 0 by default 
            bool[] alreadyDrawn = new bool[52]; // all elements set to false by default 
            int count = 0;
            int cardNum = 0;
            while (count < 52)
            {
                cardNum = rand.Next(0, 52); // random number between 0 and 51 
                if (alreadyDrawn[cardNum] == false)
                {
                    newCards[count++] = cardNum;
                    alreadyDrawn[cardNum] = true;
                }
            }
            for (int i = 0; i < 52; i++)
            {
                deck[i] = new Card(newCards[i]);
            }

            return deck;
        }
        public override string ToString()
        {
            string name;
            switch (number)
            {
                case 1:
                    name = "A";
                    break;
                case 11:
                    name = "J";
                    break;
                case 12:
                    name = "Q";
                    break;
                case 13:
                    name = "K";
                    break;
                default:
                    name = number.ToString();
                    break;
            }
            return name + suit.ToUpper()[0];
        }
        public string ToLongString()
        {
            string name;
            switch (number)
            {
                case 1:
                    name = "Ace";
                    break;
                case 11:
                    name = "Jack";
                    break;
                case 12:
                    name = "Queen";
                    break;
                case 13:
                    name = "King";
                    break;
                default:
                    name = number.ToString();
                    break;
            }
            return name + " of " + suit;
        }
    }
}