import java.awt.*;
import java.awt.event.*;

import javax.swing.*;
public class Mine extends JFrame implements ActionListener, MouseListener{
	int nomines = 80;
	int perm[][];
       String tmp;
       boolean found = false;
       int row;
       int column;
       int guesses[][];
       JButton b[][];
       int[][] mines;
       boolean allmines;
       int n = 30;
       int m = 30;
       int deltax[] = {-1, 0, 1, -1, 1, -1, 0, 1};
       int deltay[] = {-1, -1, -1, 0, 0, 1, 1, 1};
       double starttime;
       double endtime;
       public Mine(){
       this.setDefaultCloseOperation(EXIT_ON_CLOSE);
    	perm = new int[n][m];
               boolean allmines = false;
               guesses = new int [n+2][m+2];
               mines = new int[n+2][m+2];
               b = new JButton [n][m];
               setLayout(new GridLayout(n,m));
               for (int y = 0;y<m+2;y++){
                       mines[0][y] = 3;
                       mines[n+1][y] = 3;
                       guesses[0][y] = 3;
                       guesses[n+1][y] = 3;
               }
               for (int x = 0;x<n+2;x++){
                       mines[x][0] = 3;
                       mines[x][m+1] = 3;
                       guesses[x][0] = 3;
                       guesses[x][m+1] = 3;
               }
               do {
                       int check = 0;
                       for (int y = 1;y<m+1;y++){
                    	   for (int x = 1;x<n+1;x++){
                    		   mines[x][y] = 0;
                    		   guesses[x][y] = 0;
                    	   }
                       }
               for (int x = 0;x<nomines;x++){
                       mines [(int) (Math.random()*(n)+1)][(int) (Math.random()*(m)+1)] = 1;
               }
               for (int x = 0;x<n;x++){
                       for (int y = 0;y<m;y++){
               if (mines[x+1][y+1] == 1){
                       check++;
               }
               }}
               if (check == nomines){
                       allmines = true;
                       }}while (allmines == false);
               for (int y = 0;y<m;y++){
                       for (int x = 0;x<n;x++){
                    	   if ((mines[x+1][y+1] == 0) || (mines[x+1][y+1] == 1)){
                    		   perm[x][y] = perimcheck(x,y);
                    	   }
                               b[x][y] = new JButton("?");
                               b[x][y].addActionListener(this);
                               b[x][y].addMouseListener(this);
                               add(b[x][y]);
                               b[x][y].setEnabled(true);
                       }//end inner for
               }//end for
               pack();
               setVisible(true);
               for (int y = 0;y<m+2;y++){
               for (int x = 0;x<n+2;x++){
               System.out.print(mines[x][y]);
               }
               System.out.println("");}
               starttime = System.nanoTime();
       }//end constructor Mine()

       public void actionPerformed(ActionEvent e){
    	   found =  false;
               JButton current = (JButton)e.getSource();
               for (int y = 0;y<m;y++){
                       for (int x = 0;x<n;x++){
                               JButton t = b[x][y];
                               if(t == current){
                                       row=x;column=y; found =true;
                               }
                       }//end inner for
               }//end for
               if(!found) {
                       System.out.println("didn't find the button, there was an error "); System.exit(-1);
               }
               Component temporaryLostComponent = null;
               if (b[row][column].getBackground() == Color.orange){
            	   return;
               }else if (mines[row+1][column+1] == 1){
                       JOptionPane.showMessageDialog(temporaryLostComponent, "You set off a Mine!!!!.");
                       System.exit(0);
               } else {
                       tmp = Integer.toString(perm[row][column]);
                       if (perm[row][column] == 0){
                               tmp = " ";
                       }
                       b[row][column].setText(tmp);
                       b[row][column].setEnabled(false);
                       checkifend();
                       if (perm[row][column] == 0){
                    	   scan(row, column);
                    	   checkifend();
                       }}}
       
       public void checkifend(){
    	   int check= 0;
    	   for (int y = 0; y<m;y++){
    	        for (int x = 0;x<n;x++){
    	   if (b[x][y].isEnabled()){
    		   check++;
    	   }
    	        }}
    	   if (check == nomines){
    		   endtime = System.nanoTime();
    		   Component temporaryLostComponent = null;
    		   JOptionPane.showMessageDialog(temporaryLostComponent, "Congratulations you won!!! It took you "+(int)((endtime-starttime)/1000000000)+" seconds!");
    	   }
       }

       public void scan(int x, int y){
               for (int a = 0;a<8;a++){
       if (mines[x+1+deltax[a]][y+1+deltay[a]] == 3){
    	   
       } else if ((perm[x+deltax[a]][y+deltay[a]] == 0) && (mines[x+1+deltax[a]][y+1+deltay[a]] == 0) && (guesses[x+deltax[a]+1][y+deltay[a]+1] == 0)){
           if (b[x+deltax[a]][y+deltay[a]].isEnabled()){
               b[x+deltax[a]][y+deltay[a]].setText(" ");
               b[x+deltax[a]][y+deltay[a]].setEnabled(false);
               scan(x+deltax[a], y+deltay[a]);
      }
       } else if ((perm[x+deltax[a]][y+deltay[a]] != 0) && (mines[x+1+deltax[a]][y+1+deltay[a]] == 0)  && (guesses[x+deltax[a]+1][y+deltay[a]+1] == 0)){
               tmp = new Integer(perm[x+deltax[a]][y+deltay[a]]).toString();
               b[x+deltax[a]][y+deltay[a]].setText(Integer.toString(perm[x+deltax[a]][y+deltay[a]]));
               b[x+deltax[a]][y+deltay[a]].setEnabled(false);    
       }
               }}
       
       public int perimcheck(int a, int y){
               int minecount = 0;
                       for (int x = 0;x<8;x++){
                               if (mines[a+deltax[x]+1][y+deltay[x]+1] == 1){
                                       minecount++;
                               }
               }
               return minecount;
       }

       public void windowIconified(WindowEvent e){

       }

       public static void main(String[] args){
               new Mine();
       }


		public void mouseClicked(MouseEvent e) { 
		
	}



		@Override
		public void mouseEntered(MouseEvent arg0) {
			// TODO Auto-generated method stub
			
		}

		@Override
		public void mouseExited(MouseEvent arg0) {
			// TODO Auto-generated method stub
			
		}

		@Override
		public void mousePressed(MouseEvent e) {
			if (e.getButton() == MouseEvent.BUTTON3) { 
				found =  false;
	            Object current = e.getSource();
	            for (int y = 0;y<m;y++){
	                    for (int x = 0;x<n;x++){
	                            JButton t = b[x][y];
	                            if(t == current){
	                                    row=x;column=y; found =true;
	                            }
	                    }//end inner for
	            }//end for
	            if(!found) {
	                    System.out.println("didn't find the button, there was an error "); System.exit(-1);
	            }
	            if ((guesses[row+1][column+1] == 0) && (b[row][column].isEnabled())){
	            	b[row][column].setText("x");
	            guesses[row+1][column+1] = 1;
	            b[row][column].setBackground(Color.orange);
	            } else if (guesses[row+1][column+1] == 1){
	            	b[row][column].setText("?");
	                guesses[row+1][column+1] = 0;
	                b[row][column].setBackground(null);
	            }}
		}

		@Override
		public void mouseReleased(MouseEvent arg0) {
			// TODO Auto-generated method stub
			
		}


}//end class