<?php

/**

 * Widget Popular Post

 *

 * @package Education Zone

 */

 

// register Education_Zone_Popular_Post widget

function education_zone_register_popular_post_widget() {

    register_widget( 'Education_Zone_Popular_Post' );

}

add_action( 'widgets_init', 'education_zone_register_popular_post_widget' );



 /**

 * Adds Education_Zone_Popular_Post widget.

 */

class Education_Zone_Popular_Post extends WP_Widget {



	/**

	 * Register widget with WordPress.

	 */

	function __construct() {

		parent::__construct(

			'education_zone_popular_post', // Base ID

			__( 'RARA: Popular Post', 'education-zone' ), // Name

			array( 'description' => __( 'A Popular Post Widget', 'education-zone' ), ) // Args

		);

	}



	/**

	 * Front-end display of widget.

	 *

	 * @see WP_Widget::widget()

	 *

	 * @param array $args     Widget arguments.

	 * @param array $instance Saved values from database.

	 */

	public function widget( $args, $instance ) {

	   

        $title      = ! empty( $instance['title'] ) ? $instance['title'] : '';

        $num_post   = ! empty( $instance['num_post'] ) ? $instance['num_post'] : 3 ;

        $show_thumb = ! empty( $instance['show_thumbnail'] ) ? $instance['show_thumbnail'] : '';

        $show_date  = ! empty( $instance['show_postdate'] ) ? $instance['show_postdate'] : '';

        

        $qry = new WP_Query( array(

            'post_type'           => 'post',

            'post_status'         => 'publish',

            'posts_per_page'      => $num_post,

            'ignore_sticky_posts' => true,

            'orderby'             => 'comment_count'

        ) );

        

        if( $qry->have_posts() ){

            echo $args['before_widget'];

            echo $args['before_title'] . apply_filters( 'widget_title', $title, $instance, $this->id_base ) . $args['after_title'];

            ?>

            <ul>

                <?php 

                while( $qry->have_posts() ){

                    $qry->the_post();

                ?>

                    <li>

                        <article class="post">

                            <?php if( has_post_thumbnail() && $show_thumb ){ ?>

                            

                                <a href="<?php the_permalink();?>" class="post-thumbnail">

                                    <?php the_post_thumbnail( 'education-zone-recent-post' );?>

                                </a>

                            <?php }?>

                            <header class="entry-header">

                                    <h3 class="entry-title"><a href="<?php the_permalink(); ?>"><?php the_title();?></a></h3>

                                    <div class="entry-meta">

                                    <?php if( $show_date ){ ?>

                                     <span><i class="fa fa-calendar-o"></i><a href="<?php the_permalink(); ?>">

                                        <time datetime="<?php  echo esc_html( get_the_date( __( 'Y-m-d', 'education-zone' ) ) ); ?>">

                                        <?php echo esc_html( get_the_date( __( 'F jS, Y', 'education-zone') ) ); ?></time></a></span>

                                    <?php } ?>

                                    </div>

                            </header>

                        </article>                       

                    </li>        

                <?php    

                }

            wp_reset_postdata();       

            ?>

            </ul>

            

            <?php

            echo $args['after_widget'];   

        }          

	}



	/**

	 * Back-end widget form.

	 *

	 * @see WP_Widget::form()

	 *

	 * @param array $instance Previously saved values from database.

	 */

	public function form( $instance ) {

        

        $title      = ! empty( $instance['title'] ) ? $instance['title'] : '';

        $num_post   = ! empty( $instance['num_post'] ) ? $instance['num_post'] : 3 ;

        $show_thumb = ! empty( $instance['show_thumbnail'] ) ? $instance['show_thumbnail'] : '';

        $show_date  = ! empty( $instance['show_postdate'] ) ? $instance['show_postdate'] : '';

        

        ?>

		

        <p>

            <label for="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>"><?php _e( 'Title', 'education-zone' ); ?></label> 

            <input class="widefat" id="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'title' ) ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>" />

		</p>

        

        <p>

            <label for="<?php echo esc_attr( $this->get_field_id( 'num_post' ) ); ?>"><?php _e( 'Number of Posts', 'education-zone' ); ?></label> 

            <input class="widefat" id="<?php echo esc_attr( $this->get_field_id( 'num_post' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'num_post' ) ); ?>" type="number" step="1" min="1" value="<?php echo esc_attr( $num_post ); ?>" />

		</p>

        

        <p>

            <input id="<?php echo esc_attr( $this->get_field_id( 'show_thumbnail' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'show_thumbnail' ) ); ?>" type="checkbox" value="1" <?php checked( '1', $show_thumb ); ?>/>

            <label for="<?php echo esc_attr( $this->get_field_id( 'show_thumbnail' ) ); ?>"><?php _e( 'Show Post Thumbnail', 'education-zone' ); ?></label>

		</p>

        

        <p>

            <input id="<?php echo esc_attr( $this->get_field_id( 'show_postdate' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'show_postdate' ) ); ?>" type="checkbox" value="1" <?php checked( '1', $show_date ); ?>/>

            <label for="<?php echo esc_attr( $this->get_field_id( 'show_postdate' ) ); ?>"><?php _e( 'Show Post Date', 'education-zone' ); ?></label>

		</p>

		<?php 

	}



	/**

	 * Sanitize widget form values as they are saved.

	 *

	 * @see WP_Widget::update()

	 *

	 * @param array $new_instance Values just sent to be saved.

	 * @param array $old_instance Previously saved values from database.

	 *

	 * @return array Updated safe values to be saved.

	 */

	public function update( $new_instance, $old_instance ) {

		$instance = array();

		

        $instance['title']          = ! empty( $new_instance['title'] ) ? sanitize_text_field( $new_instance['title'] ) : '';

        $instance['num_post']       = ! empty( $new_instance['num_post'] ) ? absint($new_instance['num_post']) : 3 ;        

        $instance['show_thumbnail'] = ! empty( $new_instance['show_thumbnail'] ) ? esc_attr( $new_instance['show_thumbnail'] ) : '';

        $instance['show_postdate']  = ! empty( $new_instance['show_postdate'] ) ? esc_attr( $new_instance['show_postdate'] ) : '';

		

        return $instance;

	}



} // class Education_Zone_Popular_Post