import javax.swing.JOptionPane;
public class GamePlayer
{
   static Object[] gameOptions = {"QUIT", "GUESS", "NIM", "TIC_TAC_TOE"};

	//Play a series of Human-Computer Interactive Games 
	public static void main(String[] args)
	{		
      InteractiveGame game;
		do
		{
			game = promptForGame();	
			if (game != null)
				play( game );
				
		} while ( game != null ); 
	}

	//Prompt the (human) player for the name of the game and its parameters:
	// 1) cyberSmart :Computer plays smart  2) humanFirst: Human plays first
   //
   //Returns a new instance of the selected game
   // or null if the player wants to quit
	private static InteractiveGame  promptForGame()
	{
      //Choose a Human-Computer Interactive Game, or Quit
		String gameName = (String)JOptionPane.showInputDialog(null,
		                              "Choose a game, or QUIT", "GAME MENU",
												JOptionPane.INFORMATION_MESSAGE, null,
												gameOptions, gameOptions[0] );
		if (gameName.equals(gameOptions[0]))
			return null;    // To Quit
		
      //Prompt the Human for the Human-Computer Interactive Games options	
		boolean cyberSmart = JOptionPane.showConfirmDialog(null, 
                                  gameName + ": Computer to play SMART?")
									== JOptionPane.YES_OPTION;
											
		boolean humanFirst = JOptionPane.showConfirmDialog(null, 
                                  gameName + ":Do you want to play FIRST?")
									== JOptionPane.YES_OPTION;
      switch ( gameName )
      {
         case "GUESS"   : return new GuessingGame(cyberSmart, humanFirst );
         case "NIM"     : return new Nim(cyberSmart, humanFirst );	
         //case "TIC_TAC_TOE": return new TicTacToe(cyberSmart, humanFirst );

         default        : return null;
      }
	}
	
	//Play a selected Human-Computer Interactive Games by alternating turns
	//	between the HUMAN and the COMPUTER
	private static void play(InteractiveGame game)
	{
		while ( !game.isCompleted() )
			if ( game.isPlayersTurn() )
            game.makePlayersMove( promptForMove(game) );
         else
            game.makeComputersMove();
			
		String message = game + "\n\n" + 
                      (game.playerHasWon() ? "Congratulations! You WON!"
                                           : "Better Luck Next Time!"   );
		JOptionPane.showMessageDialog(null, message);	
	}
	
	//Prompt the HUMAN PLAYER to enter their next move
	//The prompt is repeated if an invalid move is entered
	public static String promptForMove(InteractiveGame game)
	{
		do
		{
			String playersMove = JOptionPane.showInputDialog( null, 
                                          game.movePrompt() + " ?" );
                                          
			if ( game.isValidMove(playersMove) )
            return playersMove;
            
		   JOptionPane.showMessageDialog(null, 
                                 playersMove + " is an INVALID move");
		} while ( true );
	}	
    
}