<?php

add_action('widgets_init', 'nz_register_recent_posts_widget');
function nz_register_recent_posts_widget(){
	register_widget( 'WP_Widget_Recent_Posts_Nz' );
}

class WP_Widget_Recent_Posts_Nz extends WP_Widget {

	function __construct() {
		$widget_ops = array('classname' => 'widget_nz_recent_entries', 'description' => __( "Your site&#8217;s most recent Posts.", TEMPNAME) );
		parent::__construct('nz-recent-posts', __('*Recent Posts', TEMPNAME), $widget_ops);
		$this->alt_option_name = 'widget_nz_recent_entries';

		add_action( 'save_post', array($this, 'flush_widget_cache') );
		add_action( 'deleted_post', array($this, 'flush_widget_cache') );
		add_action( 'switch_theme', array($this, 'flush_widget_cache') );
	}

	function widget($args, $instance) {
		$cache = array();
		if ( ! $this->is_preview() ) {
			$cache = wp_cache_get( 'widget_recent_posts', 'widget' );
		}

		if ( ! is_array( $cache ) ) {
			$cache = array();
		}

		if ( ! isset( $args['widget_id'] ) ) {
			$args['widget_id'] = $this->id;
		}

		if ( isset( $cache[ $args['widget_id'] ] ) ) {
			echo $cache[ $args['widget_id'] ];
			return;
		}

		ob_start();
		extract($args);

		$title = ( ! empty( $instance['title'] ) ) ? $instance['title'] : __( 'Recent Posts', TEMPNAME);

		/** This filter is documented in wp-includes/default-widgets.php */
		$title = apply_filters( 'widget_title', $title, $instance, $this->id_base );

		$number = ( ! empty( $instance['number'] ) ) ? absint( $instance['number'] ) : 5;
		if ( ! $number )
			$number = 5;

		/**
		 * Filter the arguments for the Recent Posts widget.
		 *
		 * @since 3.4.0
		 *
		 * @see WP_Query::get_posts()
		 *
		 * @param array $args An array of arguments used to retrieve the recent posts.
		 */
		$r = new WP_Query( apply_filters( 'widget_posts_args', array(
			'posts_per_page'      => $number,
			'no_found_rows'       => true,
			'post_status'         => 'publish',
			'ignore_sticky_posts' => true
		) ) );

		if ($r->have_posts()) :
?>
		<?php echo $before_widget; ?>
		<?php if ( $title ) echo $before_title . $title . $after_title; ?>
		<ul>
		<?php while ( $r->have_posts() ) : $r->the_post(); ?>
			<li>
				<div class="post-date"><?php echo ('<span>'.get_the_date("d").'</span><span>'.get_the_date("M").'</span>'); ?></div>
				<div class="post-body">
					<a class="post-title" href="<?php the_permalink(); ?>"><?php get_the_title() ? the_title() : the_ID(); ?></a>
					<?php
						$categories = get_the_category();
						$separator = ', ';
						$output    = '';
						if($categories){
							foreach($categories as $category) {
								$output .= '<a class="post-category" href="'.get_category_link( $category->term_id ).'" title="' . esc_attr( sprintf( __( 'View all posts in %s', TEMPNAME), $category->name ) ) . '">'.$category->cat_name.'</a>'.$separator;
							}
						echo trim($output, $separator);
						}
					?>
				</div>
			</li>
		<?php endwhile; ?>
		</ul>
		<?php echo $after_widget; ?>
<?php
		// Reset the global $the_post as this query will have stomped on it
		wp_reset_postdata();

		endif;

		if ( ! $this->is_preview() ) {
			$cache[ $args['widget_id'] ] = ob_get_flush();
			wp_cache_set( 'widget_nz_recent_posts', $cache, 'widget' );
		} else {
			ob_end_flush();
		}
	}

	function update( $new_instance, $old_instance ) {
		$instance = $old_instance;
		$instance['title'] = strip_tags($new_instance['title']);
		$instance['number'] = (int) $new_instance['number'];
		$this->flush_widget_cache();

		$alloptions = wp_cache_get( 'alloptions', 'options' );
		if ( isset($alloptions['widget_nz_recent_entries']) )
			delete_option('widget_nz_recent_entries');

		return $instance;
	}

	function flush_widget_cache() {
		wp_cache_delete('widget_nz_recent_posts', 'widget');
	}

	function form( $instance ) {
		$title     = isset( $instance['title'] ) ? esc_attr( $instance['title'] ) : '';
		$number    = isset( $instance['number'] ) ? absint( $instance['number'] ) : 5;
?>
		<p><label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:', TEMPNAME); ?></label>
		<input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo $title; ?>" /></p>

		<p><label for="<?php echo $this->get_field_id( 'number' ); ?>"><?php _e( 'Number of posts to show:', TEMPNAME); ?></label>
		<input id="<?php echo $this->get_field_id( 'number' ); ?>" name="<?php echo $this->get_field_name( 'number' ); ?>" type="text" value="<?php echo $number; ?>" size="3" /></p>

<?php
	}
}