/**
 * @author Ermek
 * @copyright Hire-Experts LLC
 * @version Quiz 1.03
 */

var he_quiz = 
{
	check_results: function( count )
	{	
		var result = true;
		var result_count = 0;
		var $titles = $$(".he_quiz_results .result_title");

		$titles.getParent('tr').removeClass("he_quiz_error_bg");
		
		for(var i=0; i<$titles.length; i++)
		{
		    var $title = $titles[i];
		    var $parent = $title.getParent('tbody');
		    var $description = $parent.getElements('textarea');
		    
		    var title = $title.get('value');
			title = ( title ) ? title.trim() : '';

		    var description = $description.get('value');
		    
		    description = ( description ) ? description[0].trim() : '';
	
		    if ( title.length == 0 && description.length > 0 ) 
		    {
		    	$title.getParent('tr').addClass("he_quiz_error_bg");
			}
		    
		    if ( title.length > 0 )
		    {
		    	result_count++;
			}
		}

		if ( result_count < count ) {
			var title = SELanguage.TranslateFormatted(690691100, [count]);
			var text = SELanguage.Translate(690691101);
			this.show_message(title, text, 'error');
			
			result = false;
		}

		return result;
	},
	
	show_message: function(title, text, type)
	{
		$message_node = $('he_message');
		
		$message_node.setStyle('display', 'none');
		$message_node.getElement('.t').set('text', title);
		$message_node.getElement('.c').set('text', text);
		$message_node.setProperty('class', '').addClass('he_message_' + type);
		
		window.setTimeout(function() {
			$message_node.setStyle('display', 'block');
		}, 100);
	},
	
	add_result: function(number)
	{
		this.result_number = ( this.result_number==undefined ) ? number + 1 : this.result_number + 1;

		$result_node = $('he_quiz_result_tpl').clone();
		$result_node.removeProperty('id');
		$result_node.getElement('.he_result_number').set('text', this.result_number);
		
		$results_node = $$('.he_quiz_results');

		$results_node.adopt($result_node);
	},
	
	delete_result: function($node)
	{
		var result = window.confirm(SELanguage.Translate(690691102));
		if ( !result ) {
			return false;			
		}
				
		var $parent = $($node).getParent('.he_quiz_result');
		
		$parent.dispose();
		
		this.result_number--;
		this.set_result_numbers();
	},
	
	set_result_numbers: function()
	{
		var $result_numbers = $$('.he_quiz_results').getElements('.he_result_number');
		
		for(var i=0; i<$result_numbers[0].length; i++)
		{
			$result_numbers[0][i].set('text', i + 1);
		}
		
		this.result_number = $result_numbers[0].length;
	},
	
	check_questions: function(count)
	{	
		var result = true;
		var question_count = 0;
		var $questions = $$('.he_quiz_questions .quiz_question');
		 
		for(var i=0; i<$questions.length; i++)
		{
		    var $question = $questions[i];
		    var $parent = $question.getParent('table');
		    var $first_parent = $question.getParent('tr');    

		    var question = $question.get('value');
			question = ( question ) ? question.trim() : '';

		    $first_parent.removeClass('he_quiz_error_bg');

		    if ( question.length == 0 )
		    {
		     	$first_parent.addClass('he_quiz_error_bg');
		        result = false;
		    }

		    var $answers = $parent.getElements('.quiz_answer_label');
		    for(var k=0; k<$answers.length; k++)
		    {
		        var $answer = $answers[k];
		        var answer = $answer.get('value');
		        answer = ( answer ) ? answer.trim() : '';

		        $answer.getParent('tr').removeClass('he_quiz_error_bg');
		        if ( answer.length == 0 )
		        {
		            result = false;
		            $answer.getParent('tr').addClass('he_quiz_error_bg');
		        }        
		    }
		}
		
		if ( $questions.length < count ) 
		{		
			var title = SELanguage.TranslateFormatted(690691103, [count]);
			var text = SELanguage.Translate(690691104);
			
			this.show_message(title, text, 'error');
			
			result = false;
		}
		
		return result;
	},
	
	add_question: function(number)
	{
		this.question_number = ( this.question_number==undefined ) ? number + 1 : this.question_number + 1;

		$question_node = $('he_quiz_question_tpl').clone();

		$question_node.removeProperty('id');
		$question_node.getElement('.he_question_number').set('text', this.question_number);
		$question_node.getElements('.quiz_question_number').set('value', this.question_number);
		$question_node.getElements('.quiz_answer_id').set('name', 'answer_id[' + this.question_number + '][]');
		$question_node.getElements('.quiz_answer_result_id').set('name', 'answer_result_id[' + this.question_number + '][]');
		$question_node.getElements('.quiz_answer_label').set('name', 'answer_label[' + this.question_number + '][]');	
		
		$questions_node = $$('.he_quiz_questions');
		$questions_node.adopt($question_node);
	},
	
	delete_question: function($node)
	{
		var result = window.confirm(SELanguage.Translate(690691105));
		if ( !result ) {
			return false;			
		}
				
		var $parent = $($node).getParent('.he_quiz_question');
		
		$parent.dispose();
		
		this.question_number--;
		this.set_question_numbers();
	},
	
	set_question_numbers: function()
	{
		var $question_numbers = $$('.he_quiz_questions').getElements('.he_question_number');
		
		for(var i=0; i<$question_numbers[0].length; i++)
		{
			$question_numbers[0][i].set('text', i + 1);
		}
		
		this.question_number = $question_numbers[0].length;
	},
	
	switch_tab: function(node, id)
	{
		var $node = $(node);
		var $parent = $node.getParent('.he_quiz_list_block');
		
		$parent.getElements('.he_quiz_tab').removeClass('active_tab');
		$node.addClass('active_tab');
		
		$parent.getElements('.he_quiz_list').set('tween', {duration: 250});
		$parent.getElements('.he_quiz_list').fade('out');
		
		window.setTimeout(function(){
			$parent.getElements('.he_quiz_list').removeClass('active_tab');
			$(id).set('tween', {duration: 250});
			$(id).fade('in');
			$(id).addClass('active_tab');
		}, 250);
	}
};

var he_quiz_play = 
{
	construct: function()
	{
		var self = this;
		
		this.current = 1;
		this.size = 610;
		this.step = 61;
		this.left = 0;
		this.interval = 15;
		
		this.navigator = {right: true, left: true};
		
		this.$questions = $$('.he_quiz_question');
		this.count = this.$questions.length;
		this.width = this.size * this.count;
		this.$cont = $$('.he_quiz_questions');
		this.$bar = $$('.he_quiz_status_bar');
		this.$border = $$('.he_quiz_status_border');
		
		this.$cont.setStyle('width', this.width);
		this.bar_size = this.$border.getStyle('width')[0].toInt();
		
		this.set_bar_size();
		
		$('he_quiz_next').addEvent('click', function(){
			self.move_question('right');
		});
		$('he_quiz_prev').addEvent('click', function(){
			self.move_question('left');
		});	
		
		$$('.he_quiz_answer input[type=radio]').set('checked', false);

		$$('.he_quiz_answer').addEvent('click', function(){
			$(this).getParent('.he_quiz_question').getElements('.he_quiz_answer').removeClass('he_quiz_checked');
			
			$(this).getElement('input[type=radio]').set('checked', true);
			$(this).addClass('he_quiz_checked');
			window.setTimeout(function(){
				self.move_question('right');
			}, 100);
		});
	},
	
	move_question: function(direction, rollover)
	{
		var dir = ( direction=='right' ) ? -1 : 1;  
		
		if ( !this.navigator[direction] && !rollover ) {
			return false;
		}
		
		if ( this.current==1 && dir==1 ) {
			this.left = -this.width;
			this.current = this.count+1;
		}
		else if ( this.current==this.count && dir==-1 ) {
			this.left = this.size;
			this.current = 0;
		}
		
		if ( $$('.he_quiz_checked').length == this.count )
		{
			this.set_bar_size();
			$('he_quiz_form').submit();
			return false;
		}		

		this.current -= dir;
		this.navigator[direction] = false;
		
		var self = this;
		var i_count = this.size/this.step; 
		var interval = window.setInterval(function(){
			if (i_count==1) {
				window.clearInterval(interval);
				self.navigator[direction] = true;
			}
			self.left += dir * self.step; 
			self.$cont.setStyle('left', self.left);
			i_count--;
		}, this.interval);
		
		this.set_bar_size();
	},
	
	set_bar_size: function()
	{
		var answers = $$('.he_quiz_checked').length; 
		var width = answers*this.bar_size/this.count;

		this.$bar.setStyle('width', width);
	},
	
	check_answers: function()
	{
		for ( var i=0; i<this.count; i++ )
		{			
			var $question = this.$questions[i];
			var checked = ( $question.getElements('.he_quiz_checked').length==1 ) ? true : false;
			
			if ( !checked )
			{
				var error_question = $question.get('id').substr(14);
				
				this.error_question(error_question);
				
				return false;
			}
		}

		return true;
	},
	
	error_question: function(error_question)
	{
		var title = SELanguage.Translate(690691106);
		var text = SELanguage.Translate(690691107);
		
		he_quiz.show_message(title, text, 'error');
		
		if ( this.current>error_question )	
		{
			var count = this.current - error_question; 
			for ( var i=0; i<count; i++ )
			{
				this.move_question('left', true);
			}
		}
		else if ( this.current<error_question )
		{
			var count = error_question - this.current; 
			for ( var i=0; i<count; i++ )
			{
				this.move_question('right', true);
			}
		}
	}
};