<?php
/**
 * Media Library administration panel.
 *
 * @package WordPress
 * @subpackage Administration
 */

/** WordPress Administration Bootstrap */
require_once( './admin.php' );

if ( !current_user_can('upload_files') )
	wp_die( __( 'You do not have permission to upload files.' ) );

$wp_list_table = _get_list_table('WP_Media_List_Table');
$pagenum = $wp_list_table->get_pagenum();

// Handle bulk actions
$doaction = $wp_list_table->current_action();

if ( $doaction ) {
	check_admin_referer('bulk-media');

	if ( 'delete_all' == $doaction ) {
		$post_ids = $wpdb->get_col( "SELECT ID FROM $wpdb->posts WHERE post_type='attachment' AND post_status = 'trash'" );
		$doaction = 'delete';
	} elseif ( isset( $_REQUEST['media'] ) ) {
		$post_ids = $_REQUEST['media'];
	} elseif ( isset( $_REQUEST['ids'] ) ) {
		$post_ids = explode( ',', $_REQUEST['ids'] );
	}

	$location = 'upload.php';
	if ( $referer = wp_get_referer() ) {
		if ( false !== strpos( $referer, 'upload.php' ) )
			$location = remove_query_arg( array( 'trashed', 'untrashed', 'deleted', 'message', 'ids', 'posted' ), $referer );
	}

	switch ( $doaction ) {
		case 'find_detached':
			if ( !current_user_can('edit_posts') )
				wp_die( __('You are not allowed to scan for lost attachments.') );

			$lost = $wpdb->get_col( "
				SELECT ID FROM $wpdb->posts
				WHERE post_type = 'attachment' AND post_parent > '0'
				AND post_parent NOT IN (
					SELECT ID FROM $wpdb->posts
					WHERE post_type NOT IN ( 'attachment', '" . join( "', '", get_post_types( array( 'public' => false ) ) ) . "' )
				)
			" );

			$_REQUEST['detached'] = 1;
			break;
		case 'attach':
			$parent_id = (int) $_REQUEST['found_post_id'];
			if ( !$parent_id )
				return;

			$parent = &get_post( $parent_id );
			if ( !current_user_can( 'edit_post', $parent_id ) )
				wp_die( __( 'You are not allowed to edit this post.' ) );

			$attach = array();
			foreach ( (array) $_REQUEST['media'] as $att_id ) {
				$att_id = (int) $att_id;

				if ( !current_user_can( 'edit_post', $att_id ) )
					continue;

				$attach[] = $att_id;
				clean_attachment_cache( $att_id );
			}

			if ( ! empty( $attach ) ) {
				$attach = implode( ',', $attach );
				$attached = $wpdb->query( $wpdb->prepare( "UPDATE $wpdb->posts SET post_parent = %d WHERE post_type = 'attachment' AND ID IN ( $attach )", $parent_id ) );
			}

			if ( isset( $attached ) ) {
				$location = 'upload.php';
				if ( $referer = wp_get_referer() ) {
					if ( false !== strpos( $referer, 'upload.php' ) )
						$location = $referer;
				}

				$location = add_query_arg( array( 'attached' => $attached ) , $location );
				wp_redirect( $location );
				exit;
			}
			break;
		case 'trash':
			foreach ( (array) $post_ids as $post_id ) {
				if ( !current_user_can( 'delete_post', $post_id ) )
					wp_die( __( 'You are not allowed to move this post to the trash.' ) );

				if ( !wp_trash_post( $post_id ) )
					wp_die( __( 'Error in moving to trash...' ) );
			}
			$location = add_query_arg( array( 'trashed' => count( $post_ids ), 'ids' => join( ',', $post_ids ) ), $location );
			break;
		case 'untrash':
			foreach ( (array) $post_ids as $post_id ) {
				if ( !current_user_can( 'delete_post', $post_id ) )
					wp_die( __( 'You are not allowed to move this post out of the trash.' ) );

				if ( !wp_untrash_post( $post_id ) )
					wp_die( __( 'Error in restoring from trash...' ) );
			}
			$location = add_query_arg( 'untrashed', count( $post_ids ), $location );
			break;
		case 'delete':
			foreach ( (array) $post_ids as $post_id_del ) {
				if ( !current_user_can( 'delete_post', $post_id_del ) )
					wp_die( __( 'You are not allowed to delete this post.' ) );

				if ( !wp_delete_attachment( $post_id_del ) )
					wp_die( __( 'Error in deleting...' ) );
			}
			$location = add_query_arg( 'deleted', count( $post_ids ), $location );
			break;
	}

	wp_redirect( $location );
	exit;
} elseif ( ! empty( $_GET['_wp_http_referer'] ) ) {
	 wp_redirect( remove_query_arg( array( '_wp_http_referer', '_wpnonce' ), stripslashes( $_SERVER['REQUEST_URI'] ) ) );
	 exit;
}

$wp_list_table->prepare_items();

$total_pages = $wp_list_table->get_pagination_arg( 'total_pages' );
if ( $pagenum > $total_pages && $total_pages > 0 ) {
	wp_redirect( add_query_arg( 'paged', $total_pages ) );
	exit;
}

$title = __('Media Library');
$parent_file = 'upload.php';

wp_enqueue_script( 'wp-ajax-response' );
wp_enqueue_script( 'jquery-ui-draggable' );
wp_enqueue_script( 'media' );

add_screen_option( 'per_page', array('label' => _x( 'Media items', 'items per page (screen options)' )) );

add_contextual_help( $current_screen,
	'<p>' . __( 'All the files you&#8217;ve uploaded are listed in the Media Library, with the most recent uploads listed first. You can use the <em>Screen Options</em> tab to customize the display of this screen.' ) . '</p>' .
	'<p>' . __( 'You can narrow the list by file type/status using the text link filters at the top of the screen. You also can refine the list by date using the dropdown menu above the media table.' ) . '</p>' .
	'<p>' . __( 'Hovering over a row reveals action links: <em>Edit</em>, <em>Delete Permanently</em>, and <em>View</em>. Clicking <em>Edit</em> or on the media file&#8217;s name displays a simple screen to edit that individual file&#8217;s metadata. Clicking <em>Delete Permanently</em> will delete the file from the media library (as well as from any posts to which it is currently attached). <em>View</em> will take you to the display page for that file.' ) . '</p>' .
	'<p>' . __( 'If a media file has not been attached to any post, you will see that in the <em>Attached To</em> column, and can click on <em>Attach File</em> to launch a small popup that will allow you to search for a post and attach the file.' ) . '</p>' .
	'<p><strong>' . __( 'For more information:' ) . '</strong></p>' .
	'<p>' . __( '<a href="http://codex.wordpress.org/Media_Library_SubPanel" target="_blank">Documentation on Media Library</a>' ) . '</p>' .
	'<p>' . __( '<a href="http://wordpress.org/support/" target="_blank">Support Forums</a>' ) . '</p>'
);

require_once('./admin-header.php');
?>

<div class="wrap">
<?php screen_icon(); ?>
<h2><?php echo esc_html( $title ); ?> <a href="media-new.php" class="button add-new-h2"><?php echo esc_html_x('Add New', 'file'); ?></a> <?php
if ( isset($_REQUEST['s']) && $_REQUEST['s'] )
	printf( '<span class="subtitle">' . __('Search results for &#8220;%s&#8221;') . '</span>', get_search_query() ); ?>
</h2>

<?php
$message = '';
if ( isset($_GET['posted']) && (int) $_GET['posted'] ) {
	$message = __('Media attachment updated.');
	$_SERVER['REQUEST_URI'] = remove_query_arg(array('posted'), $_SERVER['REQUEST_URI']);
}

if ( isset($_GET['attached']) && (int) $_GET['attached'] ) {
	$attached = (int) $_GET['attached'];
	$message = sprintf( _n('Reattached %d attachment.', 'Reattached %d attachments.', $attached), $attached );
	$_SERVER['REQUEST_URI'] = remove_query_arg(array('attached'), $_SERVER['REQUEST_URI']);
}

if ( isset($_GET['deleted']) && (int) $_GET['deleted'] ) {
	$message = sprintf( _n( 'Media attachment permanently deleted.', '%d media attachments permanently deleted.', $_GET['deleted'] ), number_format_i18n( $_GET['deleted'] ) );
	$_SERVER['REQUEST_URI'] = remove_query_arg(array('deleted'), $_SERVER['REQUEST_URI']);
}

if ( isset($_GET['trashed']) && (int) $_GET['trashed'] ) {
	$message = sprintf( _n( 'Media attachment moved to the trash.', '%d media attachments moved to the trash.', $_GET['trashed'] ), number_format_i18n( $_GET['trashed'] ) );
	$message .= ' <a href="' . esc_url( wp_nonce_url( 'upload.php?doaction=undo&action=untrash&ids='.(isset($_GET['ids']) ? $_GET['ids'] : ''), "bulk-media" ) ) . '">' . __('Undo') . '</a>';
	$_SERVER['REQUEST_URI'] = remove_query_arg(array('trashed'), $_SERVER['REQUEST_URI']);
}

if ( isset($_GET['untrashed']) && (int) $_GET['untrashed'] ) {
	$message = sprintf( _n( 'Media attachment restored from the trash.', '%d media attachments restored from the trash.', $_GET['untrashed'] ), number_format_i18n( $_GET['untrashed'] ) );
	$_SERVER['REQUEST_URI'] = remove_query_arg(array('untrashed'), $_SERVER['REQUEST_URI']);
}

$messages[1] = __('Media attachment updated.');
$messages[2] = __('Media permanently deleted.');
$messages[3] = __('Error saving media attachment.');
$messages[4] = __('Media moved to the trash.') . ' <a href="' . esc_url( wp_nonce_url( 'upload.php?doaction=undo&action=untrash&ids='.(isset($_GET['ids']) ? $_GET['ids'] : ''), "bulk-media" ) ) . '">' . __('Undo') . '</a>';
$messages[5] = __('Media restored from the trash.');

if ( isset($_GET['message']) && (int) $_GET['message'] ) {
	$message = $messages[$_GET['message']];
	$_SERVER['REQUEST_URI'] = remove_query_arg(array('message'), $_SERVER['REQUEST_URI']);
}

if ( !empty($message) ) { ?>
<div id="message" class="updated"><p><?php echo $message; ?></p></div>
<?php } ?>

<?php $wp_list_table->views(); ?>

<form id="posts-filter" action="" method="get">

<?php $wp_list_table->search_box( __( 'Search Media' ), 'media' ); ?>

<?php $wp_list_table->display(); ?>

<div id="ajax-response"></div>
<?php find_posts_div(); ?>
<br class="clear" />

</form>
</div>

<?php
include('./admin-footer.php');
