<?php
/**
 * Uninstall: remove data only if the user asked for it in Settings.
 *
 * @package Malsift
 */

if ( ! defined( 'WP_UNINSTALL_PLUGIN' ) ) {
	exit;
}

wp_clear_scheduled_hook( 'malsift_daily_scan' );
wp_clear_scheduled_hook( 'malsift_continue_scan' );

// Never leave server rules behind, even when settings are kept.
$malsift_up = wp_upload_dir( null, false );
if ( ! empty( $malsift_up['basedir'] ) ) {
	$malsift_ht = trailingslashit( $malsift_up['basedir'] ) . '.htaccess';
	if ( is_readable( $malsift_ht ) && false !== strpos( (string) file_get_contents( $malsift_ht ), '# BEGIN Malsift' ) ) { // phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents -- local file.
		$malsift_text = preg_replace( '~\n?# BEGIN Malsift\n.*?# END Malsift\n?~s', "\n", (string) file_get_contents( $malsift_ht ) ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents -- local file.
		if ( '' === trim( $malsift_text ) ) {
			wp_delete_file( $malsift_ht );
		} else {
			file_put_contents( $malsift_ht, ltrim( $malsift_text, "\n" ) ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_file_put_contents -- remove only Malsift's block.
		}
	}
}
// Firewall settings live network-wide on multisite.
if ( is_multisite() ) {
	delete_site_option( 'malsift_firewall' );
	delete_site_option( 'malsift_fw_log' );
}

$malsift_settings = get_option( 'malsift_settings', array() );
if ( empty( $malsift_settings['delete_on_uninstall'] ) ) {
	return;
}

$malsift_dir_name = get_option( 'malsift_data_dir' );
if ( $malsift_dir_name && preg_match( '/^malsift-[a-z0-9]{12}$/', $malsift_dir_name ) ) {
	require_once ABSPATH . 'wp-admin/includes/file.php';
	if ( WP_Filesystem() ) {
		global $wp_filesystem;
		$malsift_uploads = wp_upload_dir( null, false );
		$wp_filesystem->delete( trailingslashit( $malsift_uploads['basedir'] ) . $malsift_dir_name, true );
	}
}

foreach ( array( 'malsift_settings', 'malsift_data_dir', 'malsift_last_scan', 'malsift_scan_state', 'malsift_history', 'malsift_ignored', 'malsift_quarantine', 'malsift_firewall', 'malsift_fw_log' ) as $malsift_option ) {
	delete_option( $malsift_option );
}
delete_transient( 'malsift_lock' );

// Cached checksums, theme lookups and login counters.
global $wpdb;
foreach ( array( '_transient_malsift_', '_transient_timeout_malsift_' ) as $malsift_prefix ) {
	$wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->options} WHERE option_name LIKE %s", $wpdb->esc_like( $malsift_prefix ) . '%' ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching -- one-time cleanup on uninstall.
}