<?php
/**
 * @author Sam Later
 * Event categories in sidebar widget
 */
class EM_Widget_Category extends WP_Widget {
	
	var $defaults;
	
    /** constructor */
    function __construct() {
    	$this->defaults = array(
    		'title' => __('Event Categories','dbem'),
    		'scope' => 'future',
    		'order' => 'ASC',
    		'limit' => 5,
    		'category' => 0,
    		'format' => '#_EVENTLINK<ul><li>#_EVENTDATES</li><li>#_LOCATIONTOWN</li></ul>',
    		'nolistwrap' => false,
    		'orderby' => 'event_start_date,event_start_time,event_name',
			'bottom_link' => 0,
			'bottom_link_text' => __('bottom link text', 'dbem'),
			'bottom_link_url' => __('bottom link url', 'dbem'),
			'no_events_text' => __('No events', 'dbem')
    	);
		$this->em_orderby_options = apply_filters('em_settings_events_default_orderby_ddm', array(
			'event_start_date,event_start_time,event_name' => __('start date, start time, event name','dbem'),
			'event_name,event_start_date,event_start_time' => __('name, start date, start time','dbem'),
			'event_name,event_end_date,event_end_time' => __('name, end date, end time','dbem'),
			'event_end_date,event_end_time,event_name' => __('end date, end time, event name','dbem'),
		)); 
    	$widget_ops = array('description' => __( "Display a list of event categories on Events Manager.", 'dbem') );
        //parent::WP_Widget(false, $name = 'Event Categories', $widget_ops);
		parent::__construct(false, 'Event Categories', $widget_ops);
    }

    /** @see WP_Widget::widget */
    function widget($args, $instance) {
		
    	$instance = array_merge($this->defaults, $instance);
    	$instance = $this->fix_scope($instance); // depcreciate	

    	echo $args['before_widget'];
    	if( !empty($instance['title']) ){
		    echo $args['before_title'];
		    echo apply_filters('widget_title',$instance['title'], $instance, $this->id_base);
		    echo $args['after_title'];
    	}
    	
		//echo EM_Categories::output(array('scope'=>'future', 'limit'=>10, 'pagination'=>1, 'country'=>'US', 'eventful'=>1));
		$categories = EM_Categories::get(array('orderby'=>'name'));
		echo '<ul>';
		if (count($categories) > 0) :
			foreach($categories as $category) :
				//var_dump($category);
				$events = EM_Events::get(array('scope'=>'future', 'limit'=>99999, 'category'=>$category->id));
				$count = count($events);
				if ($count > 0) :
					echo '<li><a href="'.get_bloginfo('url').'/events/categories/'.$category->slug.'/">'.$category->name.'</a> ('.$count.')</li>';
					//echo '<li><a href="'.get_category_link($category->id).'">'.$category->name.' - '.$category->id.'</a> ('.$count.')</li>';
					//echo '<li>'.$category->output($instance['format']).' ('.$count.')</li>';
				endif;
			endforeach;
		endif;
		//echo '</ul>';
	
		$instance['owner'] = false;
		//orderby fix for previous versions with old orderby values
		if( !array_key_exists($instance['orderby'], $this->em_orderby_options) ){
			//replace old values
			$old_vals = array(
				'name' => 'event_name',
				'end_date' => 'event_end_date',
				'start_date' => 'event_start_date',
				'end_time' => 'event_end_time',
				'start_time' => 'event_start_time'
			);
			foreach($old_vals as $old_val => $new_val){
				$instance['orderby'] = str_replace($old_val, $new_val, $instance['orderby']);
			}
		}
		/*
		$events = EM_Events::get(apply_filters('em_widget_events_get_args',$instance));
		echo "<ul>";
		$li_wrap = !preg_match('/^<li>/i', trim($instance['format']));
		if ( count($events) > 0 ){
			foreach($events as $event){				
				if( $li_wrap ){
					echo '<li>'. $event->output($instance['format']) .'</li>';
				}else{
					echo $event->output($instance['format']);
				}
			}
		}else{
			echo '<li>'.$instance['no_events_text'].'</li>';
		}
		*/
		if ( !empty($instance['bottom_link']) ):
			$bottom_text = (!empty($instance['bottom_link_text']) ? $instance['bottom_link_text'] : '');
			$bottom_link = (!empty($instance['bottom_link_url']) ? $instance['bottom_link_url'] : '');
			echo '<li><a href="'.get_bloginfo('url').'/'.$bottom_link.'">'.$bottom_text.'</a></li>';
		endif;
		echo "</ul>";
		
	    echo $args['after_widget'];
    }

    /** @see WP_Widget::update */
    function update($new_instance, $old_instance) {
    	foreach($this->defaults as $key => $value){
    		if( !isset($new_instance[$key]) ){
    			$new_instance[$key] = $value;
    		}
    	}
    	return $new_instance;
    }

    /** @see WP_Widget::form */
    function form($instance) {
    	$instance = array_merge($this->defaults, $instance);
    	$instance = $this->fix_scope($instance); // depcreciate
        ?>
		<p>
			<label for="<?php echo $this->get_field_id('title'); ?>"><?php _e('Title', 'dbem'); ?>: </label>
			<input type="text" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" value="<?php echo esc_attr($instance['title']); ?>" />
		</p>
		<p>
			<label for="<?php echo $this->get_field_id('bottom_link'); ?>"><?php _e('Show extra link at bottom?','dbem'); ?>: </label>
			<input type="checkbox" id="<?php echo $this->get_field_id('bottom_link'); ?>" name="<?php echo $this->get_field_name('bottom_link'); ?>" <?php echo (!empty($instance['bottom_link']) && $instance['bottom_link']) ? 'checked':''; ?> >
		</p>
		<p>
			<label for="<?php echo $this->get_field_id('bottom_link_url'); ?>"><?php _e('Bottom link URL','dbem'); ?>: </label>
			<input type="text" id="<?php echo $this->get_field_id('bottom_link_url'); ?>" name="<?php echo $this->get_field_name('bottom_link_url'); ?>" value="<?php echo (!empty($instance['bottom_link_url'])) ? $instance['bottom_link_url']:__('bottom link','dbem'); ?>" >
		</p>
		<p>
			<label for="<?php echo $this->get_field_id('bottom_link_text'); ?>"><?php _e('Bottom link text','dbem'); ?>: </label>
			<input type="text" id="<?php echo $this->get_field_id('bottom_link_text'); ?>" name="<?php echo $this->get_field_name('bottom_link_text'); ?>" value="<?php echo (!empty($instance['bottom_link_text'])) ? $instance['bottom_link_text']:__('bottom link','dbem'); ?>" >
		</p>
		<p>
			<label for="<?php echo $this->get_field_id('no_events_text'); ?>"><?php _e('No events text','dbem'); ?>: </label>
			<input type="text" id="<?php echo $this->get_field_id('no_events_text'); ?>" name="<?php echo $this->get_field_name('no_events_text'); ?>" value="<?php echo (!empty($instance['no_events_text'])) ? $instance['no_events_text']:__('No events', 'dbem'); ?>" >
		</p>
        <?php 
    }
    
    /**
     * Backwards compatability for an old setting which is now just another scope.
     * @param unknown_type $instance
     * @return string
     */
    function fix_scope($instance){
    	if( !empty($instance['time_limit']) && is_numeric($instance['time_limit']) && $instance['time_limit'] > 1 ){
    		$instance['scope'] = $instance['time_limit'].'-months';
    	}elseif( !empty($instance['time_limit']) && $instance['time_limit'] == 1){
    		$instance['scope'] = 'month';
    	}elseif( !empty($instance['time_limit']) && $instance['time_limit'] == 'no-limit'){
    		$instance['scope'] = 'all';
    	}
    	return $instance;
    }
}
//add_action('widgets_init', create_function('', 'return register_widget("EM_Widget_Category");'));
add_action('widgets_init',
	function() {
		register_widget('EM_Widget_Category');
	}
);