import java.util.ArrayList;
import java.util.Scanner;

public class War {
    private Deck deck;
    private Hand playerOne;
    private Hand playerTwo;

    public War() {
        System.out.println("==================================================");
        System.out.println("Opening a fresh pack of cards.");

        // Create a new Deck instance and assign it to the instance variable field.
        Deck deck = new Deck();

        System.out.println(deck);
        System.out.println("");

        System.out.println("Shuffling the deck.");

        // Shuffle the deck
        deck.shuffle();
        System.out.println(deck);
        System.out.println("");

        System.out.println("Deal the cards to two players.");
        // instantiate playerOne and playerTwo as new Hand's
        Hand playerOne = new Hand();
        Hand playerTwo = new Hand();

        // deal Card's, one a time, to each players hand. Order matters!
        // Use the Deck's dealCard() method and Hand's addCard() method.
        // dealCard() returns null when there are no more cards left.
        for( int i = 0; i < 52; i++){
            if( i % 2 == 1 ){
                playerOne.addCard(deck.dealCard());
            }else{
                playerTwo.addCard(deck.dealCard());
            }
        }

        System.out.print("Player One:\n\t");
        System.out.println(playerOne);
        System.out.print("Player Two:\n\t");
        System.out.println(playerTwo);
        System.out.println("==================================================");
    }

    private void play() {
        /*
            In this method we will play the game of WAR!
            Logically, we need to do these things
            1. Check if the game is over
            2. Print a menu to the user (Enable auto play, play a round, quit)
            * Note, the menu will not be displayed once auto play is enabled
            3. Play a card from each players hand and add it to a stack.
            4.1 The player with the highest card wins the round and is awarded the stack
            4.2 If there was a draw, each player adds three more cards to the stack and the round is over.
            * The stack can potentially be collected on the next Round
            5. Repeat until the game is over or the user quits from the menu
        */

        int menuOption = '0';
        boolean autoPlay = false;
        Scanner scan = new Scanner(System.in);
        ArrayList<Card> stack = new ArrayList<>();
        int round = 1;

        do {
            // Check if the game is over (The game is over when one of the players Hands are empty)
            // If the game is over, print the winning player and return from the method (just a return statement)
            if( playerTwo.totalInHand() == 0 ){
                System.out.println( "Player one wins!");
            }else if( playerOne.totalInHand() == 0){
                System.out.println( "Player two wins!");
            }else{
                System.out.println( "Menu: \n1 - Enable auto play. \n2 - Play a round. \n3 - Quit the game.");
                menuOption = scan.nextInt();
                switch(menuOption) {
                    case 1:
                        autoPlay = true;
                        break;
                    case 2:
                        System.out.println( "Playing a round.");
                        break;
                    case 3:
                        menuOption = 3;
                        break;
                    default:
                        System.out.println("Choice is not a option.");
                }
            }



            // If autoPlay is false, display a menu
            // Menu:
            //  1 - Enable auto play.
            //  2 - Play a round.
            //  3 - Quit the game.
            // Use nextInt() from a scanner to get the menu option
            // Use a switch statement to perform the users choice
            /*
                On option 1, set autoPlay to true
                On option 2, print "Playing a round."
                On option 3, return from the method
            */


            System.out.println("================== Round " + round + " ======================");
            // Display the number of cards player one has
            // Display the number of cards player two has
            System.out.println(playerOne.size());
            System.out.println(playerTwo.size());


            // Have each player draw a Card.
            // Make sure to save the Card returned from the players Hand into a Card reference
            // Card playerOnesCard = ... ?
            // Add both cards to the stack
            Card playerOnesCard = playerOne.playCard();
            Card playerTwosCard = playerTwo.playCard();

            stack.add(playerOnesCard);
            stack.add(playerTwosCard);

            // Display what Card each player played from their hand. (use the short name)
            System.out.println(playerOnesCard.getShortName());
            System.out.println(playerTwosCard.getShortName());

            // To compare cards, we need the rank index from each card
            // int playerOnesCardRankIndex = ... ?


            // Compare the cards
            /* If they are equal
                print WAR!
                Each player adds three cards to the stack
            */
            /* If player ones card is greater
                For each card in the stack
                remove it and add it to player ones hand.
            */
            /* If player twos card is greater
                For each card in the stack
                remove it and add it to player twos hand.
            */


            System.out.println("================== End " + round + " ========================");

            round++;
        } while (menuOption != 3);

        scan.close();
    }

    public static void main(String[] args) {
        System.out.println("WAR!");
        System.out.println("");

        War war = new War();
        war.play();

        System.out.println("");
        System.out.println("PEACE?");
    }
}