public class TakeAwayApp {
    private KeyboardReader reader;
    private TakeAwayGame game;

    public TakeAwayApp() {
        reader = new KeyboardReader();
        game = new TakeAwayGame(21);
    }
    
    public void run() {
	int sticksLeft = game.sticksLeft();
        reader.display("Let's play the TakeAway game\n");
        reader.display("There are " + sticksLeft + " sticks left.\n");
        reader.display("You can pick up 1, 2, or 3 at a time\n.");
        reader.display("You go first.\n");
        while (game.gameOver() == false) {      
            if (game.getPlayer() == game.USER) 
		        userMove();
	        else
		        computerMove();
            sticksLeft = game.sticksLeft();
            reader.display("There are " + sticksLeft + " sticks left.\n");
	    }
	
	    if (game.getWinner() == game.USER) {
            reader.display("Game over. You win. Nice game.\n");
	    } else {
            reader.display("Game over. I win. Nice game.\n");
	    }
    }

    private void userMove() {
        reader.prompt("How many sticks do you take, up to " + TakeAwayGame.MAX_TAKE_AWAY + " : ");
        int userTakes = reader.getKeyboardInteger();
        if (game.takeAway(userTakes)) {
            reader.display("You take " + userTakes + ".\n");
	} else {
            reader.display("Sorry, you can't take " + userTakes + ". Try again\n");
	}
    }

    private void computerMove() {
        int maxTakeAway = Math.min(game.sticksLeft(), TakeAwayGame.MAX_TAKE_AWAY);
        int computerTakes = 1 + (int)(Math.random() * maxTakeAway);
	game.takeAway(computerTakes);
        reader.display("I take " + computerTakes + ". ");
    }

    public static void main(String args[]) {
        TakeAwayApp app = new TakeAwayApp();
        app.run();
    }
}