package Homework3;

import java.util.Random;
import java.util.Scanner;

public class DotsAndDaggers {

    private static char map[][];
    private static int size = 3;

    private static char empty = '*';
    private static char dot = 'O';
    private static char dagger = 'X';
    private static byte charInLineToWin = 3;
    private static byte score = 0;

    private static Scanner scanner = new Scanner(System.in);
    private static Random random = new Random();


    public static void main(String[] args) {
        initMap();
        printMap();
        while (true) {
            userTurn();
            if (isEndGame(dagger) == true) {
                break;
            }
            computerTurn();
            if (isEndGame(dot)) {
                break;
            }
        }

        System.out.printf("Game over");
    }

    public static void initMap() {
        map = new char[size][size];
        for (int i = 0; i < size; i++) {
            for (int j = 0; j < size; j++) {
                map[i][j] = empty;
            }
        }
    }

    public static void printMap(){
        System.out.print("\t");
        for (int i = 1; i < size + 1; i++) {
            System.out.print(i + "\t");
        }
        System.out.println();
        System.out.println();
        for (int i = 0; i < size; i++) {
            System.out.print((i + 1) + "\t");
            for (int j = 0; j < size; j++) {
                System.out.print(map[i][j] + "\t");
            }
            System.out.println();
        }
        System.out.println();
    }

    public static void userTurn(){
        System.out.println("User turn");
        int x, y;
        do {
            System.out.print("Enter coordinates of cell: ");
            x = scanner.nextInt() - 1;
            y = scanner.nextInt() - 1;
        } while (!isCellValid(y, x));
        map[x][y] = dagger;
    }

    public static void computerTurn(){
        int good[][] = new int[size][size];
        int x, y;
        do {
            x = random.nextInt(size);
            y = random.nextInt(size);

        } while (map[x][y] != empty);



        System.out.println("computer made it's turn in cell " + (x + 1) + " " + (y + 1));
        System.out.println();
        map[x][y] = dot;
    }


    private static boolean isCellValid(int x, int y){
        boolean result = true;
        if ((map[y][x] != empty) || x >= size || x < 0 || y >= size || y < 0) {
            result = false;
        }
        return result;
    }

    public static boolean isEndGame(char symbol){
        boolean result = false;
        printMap();
        if (isAnyWon(symbol)) {
              System.out.println(symbol +  " won");
              result = true;
          }

        if (isMapFull() == true && isAnyWon(symbol) != true){
            System.out.println("nobody won");
            result = true;
        }
        return result;
    }

      public static boolean isAnyWon(char symbol){

        score = 0;

          for (int i = 0; i < map.length; i++) {
              if (map[i][i] == symbol) {
                  score++;
                  if (score == charInLineToWin) {
                      return true;
                  }
              }
          }

          score = 0;

          for (int i = 0; i < map.length; i++) {
              if (map[i][map.length - i - 1] == symbol) {
                  score++;
                  if (score == charInLineToWin) {
                      return true;
                  }
              }
          }

          score = 0;

          if (winInCaseColumn(3, symbol) == true) {
              return true;
          }

          score = 0;

          if (winInCaseColumn(2, symbol) == true) {
              return true;
          }

          score = 0;

          if (winInCaseColumn(1, symbol) == true) {
              return true;
          }

          score = 0;

          if (winInCaseLine(3, symbol) == true) {
              return true;
          }

          score = 0;

          if (winInCaseLine(2, symbol) == true) {
              return true;
          }

          score = 0;

          if (winInCaseLine(1, symbol) == true) {
              return true;
          }

        return false;
      }

      public static boolean winInCaseColumn(int x, char symbol){
          boolean result = false;
          for (int i = 0; i < size; i++) {
              if (map[i][map.length - x] == symbol) {
                  score++;
              }
              if (score == charInLineToWin) {
                  result = true;
              }
          }
          return result;
      }

    public static boolean winInCaseLine(int x, char symbol){
        boolean result = false;
        for (int i = 0; i < size; i++) {
            if (map[map.length - x][i] == symbol) {
                score++;
            }
            if (score == charInLineToWin) {
                result = true;
            }
        }
        return result;
    }

    public static boolean isMapFull(){
        boolean result = true;
        for (int i = 0; i < size; i++) {
            for (int j = 0; j < size; j++) {
                if (map[i][j] == empty) {
                    result = false;
                }
            }
        }
        return result;
    }
}