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

/**
 * Created by rayanelhajj98 on 25/11/2015.
 */
public class TicTacToe {
    public static char[][] playingBoard = new char[3][3];
    public static char player1 = 'x';
    public static char player2 = 'o';
    public static int turnCounter = 0;
    public static boolean playing = true;

    public static void main(String[] args) { //changed get winner method to return void, and in the method it prints out the winner. it activates if playing is false which is done by mechanics method.
        if (playing == true){play(playingBoard);}

    }

    //print out the playing board ;
    public static void printBoard(char [][] playingBoard) {
        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
                System.out.print("[" + playingBoard[i][j] + "]");
            }
            System.out.println();
        }
    }

    /**
     *  takes inputs from player 1 or 2 ;
     */
    public static void inputReciever(char [][] playingBoard) {
        Scanner scan = new Scanner(System.in);
        System.out.println("please enter the column number : ");
        int Cmove = scan.nextInt();
        System.out.println("please enter the row" +
                " number : ");
        int Rmove = scan.nextInt();

        // if statement to switch turn after each input;
        if (turnCounter % 2 == 0) {
            playingBoard[Rmove - 1][Cmove - 1] = player1;
        } else {
            playingBoard[Rmove - 1][Cmove - 1] = player2;
        }
        turnCounter++;
    }

    /**
     * as long as there is no winner yet it keeps the game playing
     * @param playingBoard
     */
    public static  void play(char [][] playingBoard) {
        while (playing == true) {
            printBoard(playingBoard);
            if (turnCounter % 2 == 0) { // this print out whose turn it is. you can make this into a method to make it look better
                System.out.println("Player" + player1 + "'s turn:");
            } else {
                System.out.println("Player " + player2 + "'s turn:");
            }
            inputReciever(playingBoard);
            mechanics(playingBoard);
            if(playing == false){
                playAgain();
                play(playingBoard);
            }
        }
    }

    /**
     * after the game is finished or one of the players won,it starts a new game;
     */
    public static void playAgain(){
        System.out.println("if you want to play enter y if not enter n:");
        Scanner scan = new Scanner(System.in);
        String input = scan.nextLine().toUpperCase();
        if(input.equals("Y")){
            playing = true;
            for(int i= 0; i<3; i++){
                for(int j=0; j<3 ; j++){
                    playingBoard[i][j] = ' ';
                }
            }
            playing = true;
            play(playingBoard);
        }
        else if(input.equals("N")){
            System.out.println("thank's for playing ! Hope to see you again. ");
            playing= false;
        }
        else if (!input.equals("Y") && !input.equals("N")){
            playing= false;
        }
    }

    /**
     * checks if we have a winner;
     * @param playingBoard
     */
    public static void mechanics(char[][] playingBoard) {

        for (int i = 0; i < 3; i++) {
            if (playingBoard[i][0] == playingBoard[i][1] && playingBoard[i][1] == playingBoard[i][2] && playingBoard[i][0] == 'x') {
                System.out.println("player 1 wins");
                playing = false;
            } else if (playingBoard[0][i] == playingBoard[1][i] && playingBoard[1][i] == playingBoard[2][i] && playingBoard[0][i] == 'x') {
                System.out.println("player 1 wins");
                playing = false;
            } else if (playingBoard[0][i] == playingBoard[1][i] && playingBoard[1][i] == playingBoard[2][i] && playingBoard[0][i] == 'o') {
                System.out.println("player 2 wins");
                playing = false;
            } else if (playingBoard[i][0] == playingBoard[i][1] && playingBoard[i][1] == playingBoard[i][2] && playingBoard[i][0] == 'o') {
                System.out.println("player 2 wins");
                playing = false;
            }
        }
        if(playingBoard[0][0] == 'x' && playingBoard[0][0]== playingBoard[1][1] && playingBoard[0][0]== playingBoard[2][2] ){
            System.out.println("player 1 wins");
            playing = false;
        }
        else if(playingBoard[0][0]=='o' && playingBoard[0][0]== playingBoard[1][1] && playingBoard[0][0]== playingBoard[2][2]){
            System.out.println("player 2 wins");
            playing = false;
        } else if ( playingBoard[0][2]== playingBoard[1][1] && playingBoard[1][1]== playingBoard[2][0] && playingBoard[0][2] == 'x') {
            System.out.println("player 1 wins");
            playing = false;
        } else if (playingBoard[0][2]== playingBoard[1][1] && playingBoard[1][1]== playingBoard[2][0] && playingBoard[0][2] == 'o') {
            System.out.println("player 2 wins");
            playing = false;
        }
    }
}