// Authors: Deitel & Deitel - C How to Program

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

void shuffle (int wDeck[][13]);
void deal (const int wDeck[][13], const char *wFace[], const char *wSuit[]);
void evaluate_hand(Card hand2);
int which_one_better(Card hand1, Card hand2);


typedef strcut 
{
	int face_index;
	int suit_index;
}Card;

int main (void)
{
	/* initialize suit array */
	const char *suit[4] = {"Hearts", "Diamonds", "Clubs", "Spades"};

	/* initialize face array */
	const char *face[13] = {"Ace", "Deuce", "Three", "Four", "Five", "Six", "Seven", "Eight",
		"Nine", "Ten", "Jack", "Queen", "King"};

	/* initalize deck array */
	int deck[4][13] = {0};

	Card hand1[5];
	Card hand2[5];

	evaluate_hand(hand1);
	evaluate_hand(hand2);

	which_one_better(hand1, hand2);

	srand ((unsigned) time (NULL)); /* seed random-number generator */

	shuffle (deck);
	deal (deck, face, suit, hand);

	return 0;
}

/* shuffle cards in deck */

void shuffle (int wDeck[][13])
{
	int row = 0;    /* row number */
	int column = 0; /*column number */
	int card = 0;   /* card counter */

	/* for each of the 52 cards, choose slot of deck randomly */
	for (card = 1; card <= 52; card++)
	{
		/* choose new random location until unoccupied slot found */
		do
		{
			row = rand () % 4;
			column = rand () % 13;
		} while (wDeck[row][column] != 0);

		/* place card number in chosen slot of deck */
		wDeck[row][column] = card;
	}
}

/* deal cards in deck */
void deal (const int wDeck[][13], const char *wFace[], const char *wSuit[], Card * hand_deal)
{
	int row = 0;    /* row number */
	int column = 0; /*column number */
	int card = 0;   /* card counter */
	int h = 0; 
 
	/* deal each of the 52 cards */
	for (card = 1; card <= 5; card++)
	{
		/* loop through rows of wDeck */
		for (row = 0; row <= 3; row++)
		{
			/* loop through columns of wDeck for current row */
			for (column = 0; column <= 12; column++)
			{
				/* if slot contains current card, display card */
				if (wDeck[row][column] == card)
				{
					hand_deal[h]->face_index = row;
					hand_deal[h]->suit_index = column;
					h++;
					printf ("%5s of %-8s%c", wFace[column], wSuit[row], card % 2 == 0 ? '\n' : '\t');
				}
			}
		}
	}
}

/* Question 2 */
void evaluate_hand(Card hand_eva[])
{
	if (a_pair(hand_eva)) {printf("The hand has a pair\n");}
	else { printf("The hand does not have a pair \n");}
	 /* use "if else" to evalute other cases: two pairs, three of a kind, etc.*/

}

int which_one_better(Card hand1_cmp, Card hand2_cmp)
{
	/* Evaluate hands by ranking: four of a kind, flush, straight, three of a kind, two pair, and one pair*/
	if (four_of_kind(hand1_cmp) > four_of_kind(hand2_cmp)) {return 1;} // hand1 is better than hand2. 
	else if (four_of_kind(hand1_cmp) < four_of_kind(hand2_cmp)) {return -1;}
	else {..... /*the case that both hands have four of a kind*/}


	// do the similar statement for other cases: flush, straight, ....

}