<?php

/**

 * List Table API: WP_MS_Themes_List_Table class

 *

 * @package WordPress

 * @subpackage Administration

 * @since 3.1.0

 */

/**

 * Core class used to implement displaying themes in a list table for the network admin.

 *

 * @since 3.1.0

 *

 * @see WP_List_Table

 */

class WP_MS_Themes_List_Table extends WP_List_Table {

	public $site_id;

	public $is_site_themes;

	private $has_items;

	/**

	 * Whether to show the auto-updates UI.

	 *

	 * @since 5.5.0

	 *

	 * @var bool True if auto-updates UI is to be shown, false otherwise.

	 */

	protected $show_autoupdates = true;

	/**

	 * Constructor.

	 *

	 * @since 3.1.0

	 *

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

	 *

	 * @global string $status

	 * @global int    $page

	 *

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

	 */

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

		global $status, $page;

		parent::__construct(

			array(

				'plural' => 'themes',

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

			)

		);

		$status = isset( $_REQUEST['theme_status'] ) ? $_REQUEST['theme_status'] : 'all';

		if ( ! in_array( $status, array( 'all', 'enabled', 'disabled', 'upgrade', 'search', 'broken', 'auto-update-enabled', 'auto-update-disabled' ), true ) ) {

			$status = 'all';

		}

		$page = $this->get_pagenum();

		$this->is_site_themes = ( 'site-themes-network' === $this->screen->id ) ? true : false;

		if ( $this->is_site_themes ) {

			$this->site_id = isset( $_REQUEST['id'] ) ? (int) $_REQUEST['id'] : 0;

		}

		$this->show_autoupdates = wp_is_auto_update_enabled_for_type( 'theme' ) &&

			! $this->is_site_themes && current_user_can( 'update_themes' );

	}

	/**

	 * @return array

	 */

	protected function get_table_classes() {

		// @todo Remove and add CSS for .themes.

		return array( 'widefat', 'plugins' );

	}

	/**

	 * @return bool

	 */

	public function ajax_user_can() {

		if ( $this->is_site_themes ) {

			return current_user_can( 'manage_sites' );

		} else {

			return current_user_can( 'manage_network_themes' );

		}

	}

	/**

	 * @global string $status

	 * @global array $totals

	 * @global int $page

	 * @global string $orderby

	 * @global string $order

	 * @global string $s

	 */

	public function prepare_items() {

		global $status, $totals, $page, $orderby, $order, $s;

		$orderby = ! empty( $_REQUEST['orderby'] ) ? sanitize_text_field( $_REQUEST['orderby'] ) : '';

		$order   = ! empty( $_REQUEST['order'] ) ? sanitize_text_field( $_REQUEST['order'] ) : '';

		$s       = ! empty( $_REQUEST['s'] ) ? sanitize_text_field( $_REQUEST['s'] ) : '';

		$themes = array(

			/**

			 * Filters the full array of WP_Theme objects to list in the Multisite

			 * themes list table.

			 *

			 * @since 3.1.0

			 *

			 * @param WP_Theme[] $all Array of WP_Theme objects to display in the list table.

			 */

			'all'      => apply_filters( 'all_themes', wp_get_themes() ),

			'search'   => array(),

			'enabled'  => array(),

			'disabled' => array(),

			'upgrade'  => array(),

			'broken'   => $this->is_site_themes ? array() : wp_get_themes( array( 'errors' => true ) ),

		);

		if ( $this->show_autoupdates ) {

			$auto_updates = (array) get_site_option( 'auto_update_themes', array() );

			$themes['auto-update-enabled']  = array();

			$themes['auto-update-disabled'] = array();

		}

		if ( $this->is_site_themes ) {

			$themes_per_page = $this->get_items_per_page( 'site_themes_network_per_page' );

			$allowed_where   = 'site';

		} else {

			$themes_per_page = $this->get_items_per_page( 'themes_network_per_page' );

			$allowed_where   = 'network';

		}

		$current      = get_site_transient( 'update_themes' );

		$maybe_update = current_user_can( 'update_themes' ) && ! $this->is_site_themes && $current;

		foreach ( (array) $themes['all'] as $key => $theme ) {

			if ( $this->is_site_themes && $theme->is_allowed( 'network' ) ) {

				unset( $themes['all'][ $key ] );

				continue;

			}

			if ( $maybe_update && isset( $current->response[ $key ] ) ) {

				$themes['all'][ $key ]->update = true;

				$themes['upgrade'][ $key ]     = $themes['all'][ $key ];

			}

			$filter                    = $theme->is_allowed( $allowed_where, $this->site_id ) ? 'enabled' : 'disabled';

			$themes[ $filter ][ $key ] = $themes['all'][ $key ];

			$theme_data = array(

				'update_supported' => isset( $theme->update_supported ) ? $theme->update_supported : true,

			);

			// Extra info if known. array_merge() ensures $theme_data has precedence if keys collide.

			if ( isset( $current->response[ $key ] ) ) {

				$theme_data = array_merge( (array) $current->response[ $key ], $theme_data );

			} elseif ( isset( $current->no_update[ $key ] ) ) {

				$theme_data = array_merge( (array) $current->no_update[ $key ], $theme_data );

			} else {

				$theme_data['update_supported'] = false;

			}

			$theme->update_supported = $theme_data['update_supported'];

			/*

			 * Create the expected payload for the auto_update_theme filter, this is the same data

			 * as contained within $updates or $no_updates but used when the Theme is not known.

			 */

			$filter_payload = array(

				'theme'        => $key,

				'new_version'  => '',

				'url'          => '',

				'package'      => '',

				'requires'     => '',

				'requires_php' => '',

			);

			$filter_payload = (object) array_merge( $filter_payload, array_intersect_key( $theme_data, $filter_payload ) );

			$auto_update_forced = wp_is_auto_update_forced_for_item( 'theme', null, $filter_payload );

			if ( ! is_null( $auto_update_forced ) ) {

				$theme->auto_update_forced = $auto_update_forced;

			}

			if ( $this->show_autoupdates ) {

				$enabled = in_array( $key, $auto_updates, true ) && $theme->update_supported;

				if ( isset( $theme->auto_update_forced ) ) {

					$enabled = (bool) $theme->auto_update_forced;

				}

				if ( $enabled ) {

					$themes['auto-update-enabled'][ $key ] = $theme;

				} else {

					$themes['auto-update-disabled'][ $key ] = $theme;

				}

			}

		}

		if ( $s ) {

			$status           = 'search';

			$themes['search'] = array_filter( array_merge( $themes['all'], $themes['broken'] ), array( $this, '_search_callback' ) );

		}

		$totals    = array();

		$js_themes = array();

		foreach ( $themes as $type => $list ) {

			$totals[ $type ]    = count( $list );

			$js_themes[ $type ] = array_keys( $list );

		}

		if ( empty( $themes[ $status ] ) && ! in_array( $status, array( 'all', 'search' ), true ) ) {

			$status = 'all';

		}

		$this->items = $themes[ $status ];

		WP_Theme::sort_by_name( $this->items );

		$this->has_items = ! empty( $themes['all'] );

		$total_this_page = $totals[ $status ];

		wp_localize_script(

			'updates',

			'_wpUpdatesItemCounts',

			array(

				'themes' => $js_themes,

				'totals' => wp_get_update_data(),

			)

		);

		if ( $orderby ) {

			$orderby = ucfirst( $orderby );

			$order   = strtoupper( $order );

			if ( 'Name' === $orderby ) {

				if ( 'ASC' === $order ) {

					$this->items = array_reverse( $this->items );

				}

			} else {

				uasort( $this->items, array( $this, '_order_callback' ) );

			}

		}

		$start = ( $page - 1 ) * $themes_per_page;

		if ( $total_this_page > $themes_per_page ) {

			$this->items = array_slice( $this->items, $start, $themes_per_page, true );

		}

		$this->set_pagination_args(

			array(

				'total_items' => $total_this_page,

				'per_page'    => $themes_per_page,

			)

		);

	}

	/**

	 * @param WP_Theme $theme

	 * @return bool

	 */

	public function _search_callback( $theme ) {

		static $term = null;

		if ( is_null( $term ) ) {

			$term = wp_unslash( $_REQUEST['s'] );

		}

		foreach ( array( 'Name', 'Description', 'Author', 'Author', 'AuthorURI' ) as $field ) {

			// Don't mark up; Do translate.

			if ( false !== stripos( $theme->display( $field, false, true ), $term ) ) {

				return true;

			}

		}

		if ( false !== stripos( $theme->get_stylesheet(), $term ) ) {

			return true;

		}

		if ( false !== stripos( $theme->get_template(), $term ) ) {

			return true;

		}

		return false;

	}

	// Not used by any core columns.

	/**

	 * @global string $orderby

	 * @global string $order

	 * @param array $theme_a

	 * @param array $theme_b

	 * @return int

	 */

	public function _order_callback( $theme_a, $theme_b ) {

		global $orderby, $order;

		$a = $theme_a[ $orderby ];

		$b = $theme_b[ $orderby ];

		if ( $a === $b ) {

			return 0;

		}

		if ( 'DESC' === $order ) {

			return ( $a < $b ) ? 1 : -1;

		} else {

			return ( $a < $b ) ? -1 : 1;

		}

	}

	/**

	 */

	public function no_items() {

		if ( $this->has_items ) {

			_e( 'No themes found.' );

		} else {

			_e( 'No themes are currently available.' );

		}

	}

	/**

	 * @return string[] Array of column titles keyed by their column name.

	 */

	public function get_columns() {

		$columns = array(

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

			'name'        => __( 'Theme' ),

			'description' => __( 'Description' ),

		);

		if ( $this->show_autoupdates ) {

			$columns['auto-updates'] = __( 'Automatic Updates' );

		}

		return $columns;

	}

	/**

	 * @return array

	 */

	protected function get_sortable_columns() {

		return array(

			'name' => array( 'name', false, __( 'Theme' ), __( 'Table ordered by Theme Name.' ), 'asc' ),

		);

	}

	/**

	 * Gets the name of the primary column.

	 *

	 * @since 4.3.0

	 *

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

	 */

	protected function get_primary_column_name() {

		return 'name';

	}

	/**

	 * @global array $totals

	 * @global string $status

	 * @return array

	 */

	protected function get_views() {

		global $totals, $status;

		$status_links = array();

		foreach ( $totals as $type => $count ) {

			if ( ! $count ) {

				continue;

			}

			switch ( $type ) {

				case 'all':

					/* translators: %s: Number of themes. */

					$text = _nx(

						'All <span class="count">(%s)</span>',

						'All <span class="count">(%s)</span>',

						$count,

						'themes'

					);

					break;

				case 'enabled':

					/* translators: %s: Number of themes. */

					$text = _nx(

						'Enabled <span class="count">(%s)</span>',

						'Enabled <span class="count">(%s)</span>',

						$count,

						'themes'

					);

					break;

				case 'disabled':

					/* translators: %s: Number of themes. */

					$text = _nx(