import java.util.Scanner;


public class Game {
    public static void main(String[] args) throws InterruptedException {

        Scanner scanner = new Scanner(System.in);
        int result = 0, rounds = 0, wins = 0, losses = 0, ties = 0;
        String play = "";

        while (true) {
            Thread.sleep(2000);
            System.out.println("\n==================Blackjack===================");
            System.out.print("[P]lay round or [Q]uit? ");
            play = scanner.next().toUpperCase();
            System.out.println("==============================================");

            if (play.equals("P")) {
                rounds += 1;
                result = playGame();    //runs the playGame method which returns a result
                if (result == 1) wins += 1;
                if (result == 2) losses += 1;
                if (result == 3) ties += 1;
            }
            else if (play.equals("Q")) break;
            else System.out.println("\nInvalid input");
        }

        System.out.println("\nYou played " + rounds + " rounds");
        System.out.print("Wins: " + wins + "\nTies: " + ties + "\nDealer wins: " + losses + "\n\n");

        scanner.close();
    }

    public static int playGame() throws InterruptedException {
        Scanner scanner = new Scanner(System.in);
        Deck deck = new Deck();
        deck.shuffle();

        BlackjackHand player = new BlackjackHand();
        BlackjackHand dealer = new BlackjackHand();

        String choice = "";

        //start of player turn
        System.out.println("\n-------------Players Turn------------");
        Thread.sleep(2000);
        player.add(deck.deal());
        System.out.print(player.toString() + "\nTotal: " + player.value() + "\n\n");
        player.add(deck.deal());
        Thread.sleep(2000);    //deals the first two cards for the user

        //loop to allow the user to deal cards or stand (checks for turn ending conditions)
        while(!player.isBust() && !player.isNatural() && player.value() != 21) {
            System.out.print(player.toString() + "\nTotal: " + player.value() + "\n\n");
            System.out.printf("[H]it or [S]tand? ");
            choice = scanner.next().toUpperCase();
            System.out.print("\n");
            if (choice.equals("H")) player.add(deck.deal());
            else if (choice.equals("S")) {
                break;
            }
            else System.out.println("Invalid input\n");
        }

        System.out.print(player.toString() + "\nTotal: " + player.value() + "\n");

        if (player.isBust()) {
            Thread.sleep(2000);
            System.out.print("\nBust.\n");
            System.out.println("-------------------------------------\n");
            Thread.sleep(2000);
            System.out.println("Dealer wins.");
            return 2;   // dealer wins if player goes bust
        }
        else if (player.isNatural()) {
            Thread.sleep(2000);
            System.out.println("\nNatural.");
        }
        else if (player.value() == 21) {
            Thread.sleep(2000);
            System.out.println("\nBlackjack.");
        }
        System.out.println("-------------------------------------");
        //end of player turn

        Thread.sleep(2000);

        //start of dealers turn
        System.out.print("\n-------------Dealers Turn------------");
        while (!dealer.isBust() && dealer.value() < 17 && !dealer.isNatural() && dealer.value() <= player.value()) {
            Thread.sleep(2000);
            dealer.add(deck.deal());
            System.out.print("\n" + dealer.toString() + "\nTotal: " + dealer.value() + "\n");
        }
        Thread.sleep(2000);
        if (dealer.isNatural()) System.out.println("\nNatural.");
        else if (dealer.value() == 21) System.out.println("\nBlackjack.");
        else if (dealer.isBust()) System.out.println("\nBust.");
        System.out.println("-------------------------------------\n");
        //end of dealers turn

        Thread.sleep(2000);
        if (player.isNatural()) {
            if (dealer.isNatural()) {
                System.out.println("Tie.");
                return 3;   //both natural: tie
            }
        }

        if (dealer.isBust()) {
            System.out.println("Player wins.");
            return 1;    //dealer bust: win
        }
        else {
            if (player.value() > dealer.value()) {
                System.out.println("Player wins.");
                return 1;   //player score higher than dealer score: win
            }
            if (player.value() < dealer.value()) {
                System.out.println("Dealer wins.");
                return 2;    //player score lower than dealer score: loss
            }
            else {
                System.out.println("Tie.");
                return 3;    //scores are the same: tie
            }
        }

    }
}