<?php

/**

 * List Table API: WP_Links_List_Table class

 *

 * @package WordPress

 * @subpackage Administration

 * @since 3.1.0

 */

/**

 * Core class used to implement displaying links in a list table.

 *

 * @since 3.1.0

 * @access private

 *

 * @see WP_List_Tsble

 */

class WP_Links_List_Table extends WP_List_Table {

	/**

	 * Constructor.

	 *

	 * @since 3.1.0

	 *

	 * @see WP_List_Table::__construct() for more information on default arguments.

	 *

	 * @param array $args An associative array of arguments.

	 */

	public function __construct( $args = array() ) {

		parent::__construct(

			array(

				'plural' => 'bookmarks',

				'screen' => isset( $args['screen'] ) ? $args['screen'] : null,

			)

		);

	}

	/**

	 * @return bool

	 */

	public function ajax_user_can() {

		return current_user_can( 'manage_links' );

	}

	/**

	 * @global int    $cat_id

	 * @global string $s

	 * @global string $orderby

	 * @global string $order

	 */

	public function prepare_items() {

		global $cat_id, $s, $orderby, $order;

		wp_reset_vars( array( 'action', 'cat_id', 'link_id', 'orderby', 'order', 's' ) );

		$args = array(

			'hide_invisible' => 0,

			'hide_empty'     => 0,

		);

			$args['category'] = $cat_id;

		}

		if ( ! empty( $s ) ) {

			$args['search'] = $s;

		}

		if ( ! empty( $orderby ) ) {

			$args['orderby'] = $orderby;

		}

		if ( ! empty( $order ) ) {

			$args['order'] = $order;

		}

		$this->items = get_bookmarks( $args );

	}

	/**

	 */

	public function no_items() {

		_e( 'No links found.' );

	}

	/**

	 * @return array

	 */

	protected function get_bulk_actions() {

		$actions           = array();

		$actions['delete'] = __( 'Delete' );

		return $actions;

	}

	/**

	 * @global int $cat_id

	 * @param string $which

	 */

	protected function extra_tablenav( $which ) {

		global $cat_id;

			return;

		}

		?>

		<div class="alignleft actions">

			$dropdown_options = array(

				'selected'        => $cat_id,

				'name'            => 'cat_id',

				'taxonomy'        => 'link_category',

				'show_option_all' => get_taxonomy( 'link_category' )->labels->all_items,

				'hide_empty'      => true,

				'hierarchical'    => 1,

				'show_count'      => 0,

				'orderby'         => 'name',

			);

			echo '<label class="screen-reader-text" for="cat_id">' . __( 'Filter by category' ) . '</label>';

			wp_dropdown_categories( $dropdown_options );

			submit_button( __( 'Filter' ), '', 'filter_action', false, array( 'id' => 'post-query-submit' ) );

		</div>

		<?php

	}

	/**

	 * @return array

	 */

	public function get_columns() {

		return array(

			'cb'         => '<input type="checkbox" />',

			'name'       => _x( 'Name', 'link name' ),

			'url'        => __( 'URL' ),

			'categories' => __( 'Categories' ),

			'rel'        => __( 'Relationship' ),

			'visible'    => __( 'Visible' ),

			'rating'     => __( 'Rating' ),

		);

	}

	/**

	 * @return array

	 */

	protected function get_sortable_columns() {

		return array(

			'name'    => 'name',

			'url'     => 'url',

			'visible' => 'visible',

			'rating'  => 'rating',

		);

	}

	/**

	 * Get the name of the default primary column.

	 *

	 * @since 4.3.0

	 *

	 * @return string Name of the default primary column, in this case, 'name'.

	 */

	protected function get_default_primary_column_name() {

		return 'name';

	}

	/**

	 * Handles the checkbox column output.

	 *

	 * @since 4.3.0

	 *

	 * @param object $link The current link object.

	 */

	public function column_cb( $link ) {

		?>

		<input type="checkbox" name="linkcheck[]" id="cb-select-<?php echo $link->link_id; ?>" value="<?php echo esc_attr( $link->link_id ); ?>" />

		<?php

	}

	/**

	 * Handles the link name column output.

	 *

	 * @since 4.3.0

	 *

	 * @param object $link The current link object.

	 */

	public function column_name( $link ) {

		$edit_link = get_edit_bookmark_link( $link );

		printf(

			'<strong><a class="row-title" href="%s" aria-label="%s">%s</a></strong>',

			$edit_link,

			esc_attr( sprintf( __( 'Edit “%s”' ), $link->link_name ) ),

			$link->link_name

		);

	}

	/**

	 * Handles the link URL column output.

	 *

	 * @since 4.3.0

	 *

	 * @param object $link The current link object.

	 */

	public function column_url( $link ) {

		$short_url = url_shorten( $link->link_url );

		echo "<a href='$link->link_url'>$short_url</a>";

	}

	/**

	 * Handles the link categories column output.

	 *

	 * @since 4.3.0

	 *

	 * @global int $cat_id

	 *

	 * @param object $link The current link object.

	 */

	public function column_categories( $link ) {

		global $cat_id;

		$cat_names = array();

		foreach ( $link->link_category as $category ) {

			$cat = get_term( $category, 'link_category', OBJECT, 'display' );

			if ( is_wp_error( $cat ) ) {

				echo $cat->get_error_message();

			}

			$cat_name = $cat->name;

				$cat_name = "<a href='link-manager.php?cat_id=$category'>$cat_name</a>";

			}

			$cat_names[] = $cat_name;

		}

		echo implode( ', ', $cat_names );

	}

	/**

	 * Handles the link relation column output.

	 *

	 * @since 4.3.0

	 *

	 * @param object $link The current link object.

	 */

	public function column_rel( $link ) {

		echo empty( $link->link_rel ) ? '<br />' : $link->link_rel;

	}

	/**

	 * Handles the link visibility column output.

	 *

	 * @since 4.3.0

	 *

	 * @param object $link The current link object.

	 */

	public function column_visible( $link ) {

		if ( 'Y' === $link->link_visible ) {

			_e( 'Yes' );

		} else {

			_e( 'No' );

		}

	}

	/**

	 * Handles the link rating column output.

	 *

	 * @since 4.3.0

	 *

	 * @param object $link The current link object.

	 */

	public function column_rating( $link ) {

		echo $link->link_rating;

	}

	/**

	 * Handles the default column output.

	 *

	 * @since 4.3.0

	 *

	 * @param object $link        Link object.

	 * @param string $column_name Current column name.

	 */

	public function column_default( $link, $column_name ) {

		/**

		 * Fires for each registered custom link column.

		 *

		 * @since 2.1.0

		 *

		 * @param string $column_name Name of the custom column.

		 * @param int    $link_id     Link ID.

		 */

		do_action( 'manage_link_custom_column', $column_name, $link->link_id );

	}

	public function display_rows() {

		foreach ( $this->items as $link ) {

			$link                = sanitize_bookmark( $link );

			$link->link_name     = esc_attr( $link->link_name );

			$link->link_category = wp_get_link_cats( $link->link_id );

			?>

		<tr id="link-<?php echo $link->link_id; ?>">

			<?php $this->single_row_columns( $link ); ?>

		</tr>

			<?php

		}

	}

	/**

	 * Generates and displays row action links.

	 *

	 * @since 4.3.0

	 *

	 * @param object $link        Link being acted upon.

	 * @param string $column_name Current column name.

	 * @param string $primary     Primary column name.

	 */

	protected function handle_row_actions( $link, $column_name, $primary ) {

		if ( $primary !== $column_name ) {

			return '';

		}

		$edit_link = get_edit_bookmark_link( $link );

		$actions           = array();

		$actions['edit']   = '<a href="' . $edit_link . '">' . __( 'Edit' ) . '</a>';

		return $this->row_actions( $actions );

	}

}