/**************************************************************************
* from http://home.att.net/~gobruen/
*
*
*BlackJack.java
*
* Called by GameDriver.java, needs Tree52.java to run
*
*
* Methods:
*
* blackjack()		main driver for game
* newDeck()		creates a "deck" which is the array passed to shuffle()
* shuffle()		takes an inorder array and randomizes the order
* isNum()		boolean determines if entry is a number
* showHand()		displays a "hand" passed to it which is an array of card valeus
* cleanHand()		"clears" the hands at the table when a game is over, empties array
* introduction()	intro script calls bjStart()
* bjStart()		ascii art
* help()		general help
*
****************************************************************************/

import java.lang.Math.*;
import java.io.*;
import java.util.*;

public class BlackJack
{

	public static int blackjack(int bank, String player)throws IOException{
		System.out.println("\n\n\n\n");
		introduction();
		BufferedReader clin = new BufferedReader(new InputStreamReader(System.in));//setup for command line reading
		int d[] = newDeck();
		shuffle(d);


		Tree52 cards = new Tree52();
		cards.makeCards();
		String action = "start";

		int bet = 0;
		int playerHand = 0;
		int dealerHand = 0;
		int maxH = 12;
		int pHcnt = 0;
		int dHcnt = 0;
		String pHand[] = new String[maxH];
		String dHand[] = new String[maxH];
		int cardCount = 1;


		int state = 1;
		final int BET = 1;
		final int PLAY1 = 2;
		final int PLAY2 = 3;
		final int DBUST = 4;
		final int PBUST = 5;
		final int DWIN = 6;
		final int PWIN = 7;
		final int PUSH = 8;
		final int SHUFFLE = 9;

		while(!action.equals("leave")){

			switch(state){
			case BET:
				bet = 0;
				playerHand = 0;
				dealerHand = 0;
				pHcnt = 0;
				dHcnt = 0;
				pHand = cleanHand(pHand);
				dHand = cleanHand(dHand);
				System.out.println("The dealer is staring at you and tapping the deck");
				System.out.print("["+player+", "+bank+"]Action: ");
				action = clin.readLine();
				if(action.length()>0){
					action = action.toLowerCase();
					if(isNum(action)){
						bet = Integer.parseInt(action.trim());		
						if(bet<=bank){
							if((bet>=5)&&(bet<=500)){
								bank = bank - bet;
								state = PLAY1;
							}else{
								System.out.println("Table minimum is $5, limit is $500");
								state = BET;
							}

						}else{
							System.out.println("Your bank is "+bank+" and you're trying to bet "+bet);
							state = BET;
						}
		
					}else{
						if(action.equals("hit")||action.equals("stay")){
							System.out.println("You can only do that after you've placed a bet and the cards are dealt.");
						}else{
							if(action.equals("help")){
								help();
							}else{
								System.out.println("The dealer looks bored");
							}
						}
					}//end bet if
				}
				break;
			case PLAY1: 	System.out.print("---------- New deal ----------");
					System.out.print("\nYou get: ");
				    	System.out.print(cards.getcard(d[cardCount]));
					pHand[pHcnt] = cards.getcard(d[cardCount]); pHcnt++;
				    	playerHand = cards.getval(d[cardCount]);
					cardCount++;
					System.out.print("\nDealer gets: ");
				   	System.out.print(cards.getcard(d[cardCount]));
					dHand[dHcnt] = cards.getcard(d[cardCount]); dHcnt++;
					dealerHand = cards.getval(d[cardCount]);
					cardCount++;
					System.out.print("\nYou get: ");
				    	System.out.print(cards.getcard(d[cardCount]));
					pHand[pHcnt] = cards.getcard(d[cardCount]); pHcnt++;
					if((playerHand == 11)&&(cards.getval(d[cardCount]) == 11)){
						playerHand = playerHand + 1;
					}else{
				    		playerHand = playerHand + cards.getval(d[cardCount]);
					}
					cardCount++;
					System.out.print("\nDealer gets: ");
				   	System.out.print(cards.getcard(d[cardCount]));
					dHand[dHcnt] = cards.getcard(d[cardCount]); dHcnt++;
					if((dealerHand == 11)&&(cards.getval(d[cardCount]) == 11)){
						dealerHand = dealerHand + 1;
					}else{
				    		dealerHand = dealerHand + cards.getval(d[cardCount]);
					}
					cardCount++;
					System.out.print("\n\nPlayer hand: ");
					showHand(pHand);
					System.out.print("Dealer hand: ");
					showHand(dHand);
					if((playerHand==21)&&(dealerHand==21)){
						state = PUSH;
					}else{
						if(playerHand==21){
						state = PWIN;
						}else{
							if(dealerHand==21){
								state = DWIN;
							}else{
								state = PLAY2;				
							}
						}
					}
				    break;
			case PLAY2:     
					if(playerHand<=20){
						System.out.print("Hit or Stay\n");
						System.out.print("["+player+", "+bank+"]Action: ");
						action = clin.readLine();
						action = action.toLowerCase();
						if(action.equals("hit")){
							while((!action.equals("stay"))&&(playerHand<=20)){
								System.out.print("\nYou get: ");
				    				System.out.print(cards.getcard(d[cardCount]));
								pHand[pHcnt] = cards.getcard(d[cardCount]); pHcnt++;
								if((playerHand >= 11)&&(cards.getval(d[cardCount]) == 11)){
									playerHand = playerHand + 1;
								}else{
				    					playerHand = playerHand + cards.getval(d[cardCount]);
								}
								cardCount++;
								System.out.print("\nPlayer hand: ");
								showHand(pHand);
								if(playerHand<=20){
									System.out.print("\nAction: ");
									action = clin.readLine();
								}
							}//end while
						}//end hit if
					}//end 18 if
					if(playerHand==21){
						state = PWIN;
					}else{
						if(playerHand>21){
							state = PBUST;						
						}else{
							if(dealerHand>playerHand){
								state = DWIN;
							}else{
								while((dealerHand<playerHand)||(dealerHand<21)){
									System.out.print("\nDealer gets: ");
				   					System.out.print(cards.getcard(d[cardCount]));
									dHand[dHcnt] = cards.getcard(d[cardCount]); dHcnt++;
									if((dealerHand >= 11)&&(cards.getval(d[cardCount]) == 11)){
										dealerHand = dealerHand + 1;
									}else{
				    						dealerHand = dealerHand + cards.getval(d[cardCount]);
									}				
									cardCount++;
									System.out.print("\nDealer hand: ");
									showHand(dHand);
									if(dealerHand>21){
										state = DBUST;
									}else{
										if(dealerHand==21){
											state = DWIN;
										}else{
											if(dealerHand>playerHand){
												state = DWIN;
											}
										}
									}

								}//end while
							}


						}//end dealer action
					}//end phand check
					

					break;
			case DBUST: 	System.out.println("Dealer busts");
					System.out.println();
					bank = bank + (bet *2);
					if(cardCount>=40){
						state = SHUFFLE;
					}else{
						state = BET;
					}
					break;
			case PBUST: System.out.println("Player busts");
					System.out.println();				
					if(cardCount>=40){
						state = SHUFFLE;
					}else{
						state = BET;
					}break;
			case DWIN: System.out.println("Dealer wins");
					System.out.println();
					if(cardCount>=40){
						state = SHUFFLE;
					}else{
						state = BET;
					}break;
			case PWIN: System.out.println("Player wins");
					System.out.println();
					bank = bank + (bet *2);
					if(cardCount>=40){
						state = SHUFFLE;
					}else{
						state = BET;
					}break;
			case PUSH: System.out.println("Push");
					System.out.println();
					bank = bank + bet;
					if(cardCount>=40){
						state = SHUFFLE;
					}else{
						state = BET;
					}break;
			case SHUFFLE: 	System.out.println("Dealer is shuffling the deck...");
					shuffle(d);
					cardCount = 1;
					state = BET;
					break;
			default: break;

			}
		}//end main while

		return bank;
	}//end blackjack


/************* create deck ***************/

	public static int[] newDeck(){
		int size = 52;
		int deck[] = new int[size];
		for(int i = 0; i < 52; i++){
			deck[i] = i+1;
		}

		return deck;
	}//end newDeck

	/*
	public static void printArray(int q[])
	{
		for(int i = 0; i < q.length; i++)
		{
			System.out.print(q[i]);
			System.out.print(" ");
		}
		System.out.print("\n");
	}//end printArray
	*/

/************** shuffle deck *****************/

        static void shuffle(int[] a) {
           for (int lastPlace = a.length-1; lastPlace > 0; lastPlace--) {
                
              int randLoc = (int)(Math.random()*(lastPlace+1));
                 
              int temp = a[randLoc];
              a[randLoc] = a[lastPlace];
              a[lastPlace] = temp;
           }
        }//end shuffle



	public static boolean isNum(String s)
	{
		int count=0;
		for(int j=0; j<s.length(); j++)
		{
			if (Character.isDigit(s.charAt(j)))
			count++;
		}
		if(count==s.length())
			return true;
		else 
			return false;
	}//end isNum

/**********************************************************************/
/*************hand handling methods ***********************************/
/**********************************************************************/

	static void showHand(String hand[]){
		int i = 0;
		while(hand[i] != null){
			System.out.print(hand[i]+" ");
			i++;
		}
		System.out.println();
	}//end showHand
/**********/

	static String[] cleanHand(String hand[]){
		int i = 0;
		while(hand[i] != null){
			hand[i]=null;
			i++;
		}
		return hand;
	}//end cleanHand



/**********************************************************************/

	public static void introduction(){
		bjStart();
		System.out.println("Table minimum is $5, limit is $500");
		System.out.println("Enter dollar amounts to bet, enter \"hit\" or  \"stay\" during play.");
		System.out.println("Type \"leave\" to go to another table.");
	}//end introduction

	public static void bjStart(){
		System.out.println("               ________________");
		System.out.println("       ______ |                |");
		System.out.println("      |       | A              |");
		System.out.println("      | K     |                |");
		System.out.println("      |       |                |");
		System.out.println("      |       |        A       |");
		System.out.println("      |       |       AAA      |");
		System.out.println("      |       |      AAAAA     |");
		System.out.println("      |       |     AAAAAAA    |");
		System.out.println("      |       |       AAA      |");
		System.out.println("      |       |        A       |");
		System.out.println("      |       |        A       |");
		System.out.println("      |       |       AAA      |");
		System.out.println("      |       |                |");
		System.out.println("      |       |             A  |");
		System.out.println("      |       |________________|");
		System.out.println("      |_____________|");
		System.out.println("");
		System.out.println("Welcome to BlackJack!!!");
		System.out.println("");
	}//end bjStart

	public static void help(){
		System.out.println();
		System.out.println("The prompt shows your name and how much is in your bank");
		System.out.println("[joe, 50]Action: ");
		System.out.println("  ^    ^");
		System.out.println("  |    |");
		System.out.println(" name bank");
		System.out.println("Your bank does not include whatever money is in play.");
		System.out.println("Type \"leave\" to leave a table and return to the casino floor");
		System.out.println();
		System.out.println("The point of the game is to get as close to 21 without going over.");
		System.out.println("Your hand must beat whatever hand the dealer has. If the dealer goes");
		System.out.println("over 21, you win by default. Going over 21 is called a \"bust\".");
		System.out.println("Sometimes you and the dealer may have the same hand. In this case");
		System.out.println("no one wins, no one loses. It is called a \"push\", and your money is");
		System.out.println("returned to you. ");
		System.out.println();
		System.out.println("A \"hit\" is a request for a card.");
		System.out.println("A \"stay\" lets you stand on the cards you have.");
		System.out.println("There are lots of different methods for playing and people have all kinds");
		System.out.println("advice and strategies. Here, don't hit if you have 17 or more, unless the");
		System.out.println("dealer has more than 17. If you're close to 20, take a chance that the dealer");
		System.out.println("will bust. If you have less than 17, keep hitting until you have atleast 17.");
		System.out.println("Cards here are not random, but dealt in order from a single deck, so it may be");
		System.out.println("possible to \"count cards\", a method of determining what cards will be dealt");
		System.out.println("next but reviewing what cards have already been dealt.");
		System.out.println();
		System.out.println("Card values:");
		System.out.println("-J, K, Q, \"face cards\" are worth 10");
		System.out.println("-A \"ace\" is worth 11 if the other cards are less than 11, 1 if more than 10");
		System.out.println("-Number cards are valued by the number");
		System.out.println("The hand KH AD = 21, the hand AS 5C 10D = 16");
		System.out.println();
	}//end help


/**********************************************************************/


/************* End methods ******************************************/



}//end class BlackJack