/*
  ChoiceQuizController.m - multiple choice quiz controller for Popup.app
  Copyright (C) 2003, 2004 Bjorn Gohla, Rob Burns

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02111, USA.
*/

#include "ChoiceQuizController.h"
#include "NSValue+Extensions.h"

@implementation ChoiceQuizController

-(void)dealloc
{
  [super dealloc];
}

- (void) awakeFromNib
{
  [super awakeFromNib];
  [buttonOne setFont: [NSFont systemFontOfSize: 16]];
  [buttonTwo setFont: [NSFont systemFontOfSize: 16]];
  [buttonThree setFont: [NSFont systemFontOfSize: 16]];
  [buttonFour setFont: [NSFont systemFontOfSize: 16]];
}

- (NSString *) nibName
{
  return @"ChoiceQuiz";
}

- (NSString *) quizName
{
  return _(@"Multiple Choice");
}

-(void) displayCurrentCard: (id)sender 
{
  NSArray *alternatives = [NSArray arrayWithArray: 
      [cardStack drawAlternatives: 3 excluding: [currentCard back]]];
  int correctButton;
  int i,j;

  [cardDisplay setBackgroundColor: [NSColor whiteColor]];
  [cardDisplay setTextColor: [NSColor blackColor]];
  [cardDisplay setStringValue: [currentCard front]];

  [buttonOne setTitle: @""];
  [buttonOne setAction: @selector(wrongAnswer:)];
  [buttonTwo setTitle: @""];
  [buttonTwo setAction: @selector(wrongAnswer:)];
  [buttonThree setTitle: @""];
  [buttonThree setAction: @selector(wrongAnswer:)];  
  [buttonFour setTitle: @""];
  [buttonFour setAction: @selector(wrongAnswer:)];

  correctButton = [NSValue nextIntWithMax: 4];

  switch(correctButton)
    {
      case 1:
        {
          [buttonOne setTitle: [currentCard back]];
          [buttonOne setAction: @selector(correctAnswer:)];
	  break;
        }
      case 2:
        {
          [buttonTwo setTitle: [currentCard back]];
          [buttonTwo setAction: @selector(correctAnswer:)];
          break;
        }
      case 3:
        {
          [buttonThree setTitle: [currentCard back]];
          [buttonThree setAction: @selector(correctAnswer:)];
          break;
        }
      case 4:
        {
          [buttonFour setTitle: [currentCard back]];
          [buttonFour setAction: @selector(correctAnswer:)];
          break;
        }
    }

  i = 0;

  if([[buttonOne title] isEqualToString: @""])
    {
      [buttonOne setTitle: [alternatives objectAtIndex: i]];
      i = i+1;
      for(j=0;j<[[currentCard answers] count];j++)
        {
          if([[buttonOne title] isEqualToString: [[currentCard answers] objectAtIndex: j]])
            {
              [buttonOne setAction: @selector(correctAnswer:)];
              break;
            }
          else
            {
              [buttonOne setAction: @selector(wrongAnswer:)];
            }
        }
    }

  if([[buttonTwo title] isEqualToString: @""])
    {
      [buttonTwo setTitle: [alternatives objectAtIndex: i]];
      i = i+1;
      for(j=0;j<[[currentCard answers] count];j++)
        {
          if([[buttonTwo title] isEqualToString: [[currentCard answers] objectAtIndex: j]])
            {
              [buttonTwo setAction: @selector(correctAnswer:)];
              break;
            }
          else
            {
              [buttonTwo setAction: @selector(wrongAnswer:)];
            }
        }
    }

  if([[buttonThree title] isEqualToString: @""])
    {
      [buttonThree setTitle: [alternatives objectAtIndex: i]];
      i = i+1;
      for(j=0;j<[[currentCard answers] count];j++)
        {
          if([[buttonThree title] isEqualToString: [[currentCard answers] objectAtIndex: j]])
            {
              [buttonThree setAction: @selector(correctAnswer:)];
              break;
            }
          else
            {
              [buttonThree setAction: @selector(wrongAnswer:)];
            }
        }
    }

  if([[buttonFour title] isEqualToString: @""])
    {
      [buttonFour setTitle: [alternatives objectAtIndex: i]];
      for(j=0;j<[[currentCard answers] count];j++)
        {
          if([[buttonFour title] isEqualToString: [[currentCard answers] objectAtIndex: j]])
            {
              [buttonFour setAction: @selector(correctAnswer:)];
              break;
            }
          else
            {
              [buttonFour setAction: @selector(wrongAnswer:)];
            }
        }
    }
}

@end