<?php
/** My Recent Posts Widget
  * Objective:
  *		1.To list out posts
**/
class MY_Recent_Posts extends WP_Widget {
	#1.constructor
	function MY_Recent_Posts() {
		$widget_options = array("classname"=>'widget_recent_entries', 'description'=>'To list out posts');
		$this->WP_Widget(false,IAMD_THEME_NAME.__(' Posts','iamd_text_domain'),$widget_options);
	}
	
	#2.widget input form in back-end
	function form($instance) {
		$instance = wp_parse_args( (array) $instance,array('title'=>'','_post_count'=>'','_post_categories'=>'','_enabled_image'=>'','_excerpt'=>'') );
		$title = strip_tags($instance['title']);
		$_post_count = !empty($instance['_post_count']) ? strip_tags($instance['_post_count']) : "-1";
	    $_post_categories = !empty($instance['_post_categories']) ? $instance['_post_categories']: array();
		$_enabled_image = isset($instance['_enabled_image']) ? (bool) $instance['_enabled_image'] : false;
		$_excerpt = !empty($instance['_excerpt']) ? $instance['_excerpt'] : 'show title and excerpt';?>
        
        <!-- Form -->
        <p><label for="<?php echo $this->get_field_id('title'); ?>"><?php _e('Title:','iamd_text_domain');?> 
		   <input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" 
            type="text" value="<?php echo esc_attr($title); ?>" /></label></p>
           
	    <p><label for="<?php echo $this->get_field_id('_post_categories'); ?>">
			<?php _e('Choose the categories you want to display (multiple selection possible)','iamd_text_domain');?></label>
            <select class="widefat" id="<?php echo $this->get_field_id('_post_categories').'[]';?>" 
            	name="<?php echo $this->get_field_name('_post_categories').'[]';?>" multiple="multiple">
                <option value=""><?php _e("Select",'iamd_text_domain');?></option>
           	<?php $cats = get_categories( 'orderby=name&hide_empty=0' );
			foreach ($cats as $cat):
				$id = esc_attr($cat->term_id);
				$selected = ( in_array($id,$_post_categories)) ? 'selected="selected"' : '';
				$title = esc_html($cat->name);
				echo "<option value='{$id}' {$selected}>{$title}</option>";
			endforeach;?>
            </select></p>

        <p><label for="<?php echo $this->get_field_id('_excerpt'); ?>"><?php _e('Display title only or title &amp; excerpt','iamd_text_domain');?></label>
           <?php $answers = array('show title only','show title and excerpt');?>
           <select class="widefat" id="<?php echo $this->get_field_id('_excerpt'); ?>" name="<?php echo $this->get_field_name('_excerpt'); ?>">
		   <?php foreach ($answers  as $answer ): 
           	      $selected = ($_excerpt == $answer ) ? "selected='selected'" : "";?>
                  <option <?php echo($selected);?> value="<?php echo($answer);?>"><?php echo($answer);?></option>
           <?php endforeach; ?>
           </select></p>

        <p><input type="checkbox"  id="<?php echo $this->get_field_id('_enabled_image');?>" name="<?php echo $this->get_field_name('_enabled_image');?>"
	         <?php checked($_enabled_image); ?> /> <?php _e("Show Image",'iamd_text_domain');?></p>  

	    <p><label for="<?php echo $this->get_field_id('_post_count'); ?>"><?php _e('No.of posts to show:','iamd_text_domain');?></label>
		   <input id="<?php echo $this->get_field_id('_post_count'); ?>" name="<?php echo $this->get_field_name('_post_count'); ?>" value="<?php echo $_post_count?>" /></p>
        <!-- Form end-->
<?php
	}
	#3.processes & saves the twitter widget option
	function update( $new_instance,$old_instance ) {
		$instance = $old_instance;
		$instance['title'] = strip_tags($new_instance['title']);
		$instance['_post_count'] = strip_tags($new_instance['_post_count']);
		$instance['_post_categories'] = $new_instance['_post_categories'];
		$instance['_excerpt'] = $new_instance['_excerpt'];
		$instance['_enabled_image'] = !empty($new_instance['_enabled_image']) ? 1 : 0;
	return $instance;
	}
	
	#4.output in front-end
	function widget($args, $instance) {
		extract($args);
		global $post;
		$title = empty($instance['title']) ?	'' : strip_tags($instance['title']);
		$_post_count = (int) $instance['_post_count'];
		$_post_categories = "";
		if(!empty($instance['_post_categories']))
			$_post_categories = is_array($instance['_post_categories']) ? implode(",",$instance['_post_categories']) : $instance['_post_categories'];
		$_enabled_image = isset($instance['_enabled_image']) ? $instance['_enabled_image']:0;
		$show_title = ($instance['_excerpt'] == 'show title only') ? (bool) true : (bool) false;
		$arg = empty($_post_categories) ? "posts_per_page={$_post_count}":"cat={$_post_categories}&posts_per_page={$_post_count}";


		echo $before_widget;
 	    echo $before_title.$title.$after_title;
		echo "<div class='recent-posts-widget'><ul>";
			 query_posts($arg);
			 if( have_posts()) :
			 while(have_posts()):
			 	the_post();
				$title = get_the_title();
				echo "<li>";
					if(1 == $_enabled_image):
						$image = wp_get_attachment_image_src(get_post_thumbnail_id($post->ID), 'my-post-thumb', false);
						$image = ( $image != false)? $image[0] : "http://placehold.it/100x80";
						echo "<a href='".get_permalink()."' class='thumb'>";
						echo "<img src='$image' alt='{$title}'/>";
						echo "</a>";
					endif;

					if($show_title):
						echo "<h4><a href='".get_permalink()."'>{$title}</a></h4>";
					else:
						echo "<h4><a href='".get_permalink()."'>{$title}</a></h4>";
						echo dt_theme_excerpt(7);
					endif;
					
					echo '<div class="entry-metadata">';
						echo '<p class="author"> <span class="fa fa-user"> </span> '.__('Posted By: ', 'iamd_text_domain').'<a href="'.get_author_posts_url(get_the_author_meta('ID')).'">'.get_the_author_meta('display_name').'</a></p>';
						$commtext = "";
						if((wp_count_comments($post->ID)->approved) == 0)	$commtext = '0';
						else $commtext = wp_count_comments($post->ID)->approved;
						echo '<p> <a href="'.get_permalink().'/#comments"><span class="fa fa-comment"> </span>'.$commtext.'</a></p>';
					echo '</div>';					
				echo "</li>";
			 endwhile;
			 else:
			 	echo "<li><h4>".__('No Posts found','iamd_text_domain')."</h4></li>";
			 endif;
			 wp_reset_query();
	 	echo "</ul></div>";			 
		echo $after_widget;
	}
}?>