<?php
// phpcs:disable WordPress.DB.SlowDBQuery.slow_db_query_meta_key -- Uninstall cleanup must locate QW Optimize metadata by its known meta_key once, during plugin removal.
// phpcs:disable WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedVariableFound -- Uninstall script variables are temporary local cleanup state.
/**
 * Uninstall QW Optimize.
 *
 * @package QWSpeedCache
 */

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

$settings = get_option( 'qwsc_settings', array() );
$cleanup  = is_array( $settings ) && ! empty( $settings['uninstall_cleanup'] );

if ( ! $cleanup ) {
	// Keep settings/cache unless user opted in.
	return;
}

global $wpdb;

$options = array(
	'qwsc_settings',
	'qwsc_db_version',
	'qwsc_last_purge_at',
	'qwsc_never_cache_paths',
	'qwsc_never_cache_post_paths',
	'qwsc_never_cache_index_version',
	'qwsc_last_preload',
	'qwsc_preload_stats',
	'qwsc_setup_dismissed',
	'qwsc_profiles',
	'qwsc_critical_css_global',
	'qwsc_critical_status_map',
	'qwsc_last_purge_error',
	'qwsc_private_htaccess_backup',
	'qwsc_cache_guards_version',
);

foreach ( $options as $opt ) {
	delete_option( $opt );
	if ( is_multisite() ) {
		delete_site_option( $opt );
	}
}

$runtime_options = array(
	'qwsc_media_opt_stats',
	'qwsc_media_opt_queue',
	'qwsc_media_opt_lock',
	'qwsc_media_opt_gen',
	'qwsc_rum_pages',
	'qwsc_broken_links',
	'qwsc_uptime_log',
	'qwsc_gsc_meta',
	'qwsc_login_ip_bans',
	'qwsc_il_keywords',
	'qwsc_il_stats',
	'qwsc_il_ignore_words',
	'qwsc_broken_images',
	'qwsc_broken_images_queue',
	'qwsc_psi_compare',
	'qwsc_missed_schedule_stats',
	'qwsc_preset_suggest_dismissed',
	'qwsc_preset_suggestion',
	'qwsc_delay_suggestions',
	'qwsc_url_hits',
	'qwsc_vitals_weekly_history',
	'qwsc_il_clicks',
	'qwsc_il_scan_queue',
	'qwsc_il_index',
	'qwsc_broken_scan_queue',
);
foreach ( $runtime_options as $opt ) {
	delete_option( $opt );
	if ( is_multisite() ) {
		delete_site_option( $opt );
	}
}

if ( isset( $wpdb ) ) {
	foreach ( array( '_qwsc_media_status', '_qwsc_media_bytes_saved', '_qwsc_media_error', '_qwsc_media_optimized_at' ) as $mk ) {
		// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery,WordPress.DB.DirectDatabaseQuery.NoCaching
		$wpdb->delete( $wpdb->postmeta, array( 'meta_key' => $mk ) );
	}
}

// Clear QW-owned scheduled events so uninstall leaves no background jobs behind.
foreach (
	array(
		'qwsc_refresh_dynamic_lists',
		'qwsc_cache_stale_cleanup',
		'qwsc_preload_batch',
		'qwsc_mirror_ga_script',
		'qwsc_mirror_gtm_script',
		'qwsc_scheduled_db_cleanup',
		'qwsc_uptime_ping',
		'qwsc_missed_schedule_sweep',
		'qwsc_unpublish_post',
		'qwsc_weekly_digest',
		'qwsc_daily_vitals_check',
		'qwsc_broken_images_batch',
		'qwsc_vuln_check',
		'qwsc_il_scan_batch',
		'qwsc_broken_scan_queue',
	) as $hook
) {
	wp_clear_scheduled_hook( $hook );
}

// Transients with qwsc_ prefix (best-effort).
if ( isset( $wpdb ) && is_object( $wpdb ) ) {
	// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching
	$wpdb->query( "DELETE FROM {$wpdb->options} WHERE option_name LIKE '_transient_qwsc_%' OR option_name LIKE '_transient_timeout_qwsc_%'" );
}

// Page cache directory.
$cache_dir = ( defined( 'WP_CONTENT_DIR' ) ? WP_CONTENT_DIR : '' ) . '/cache/qw-speed-cache';
if ( $cache_dir && is_dir( $cache_dir ) ) {
	$it = new RecursiveIteratorIterator(
		new RecursiveDirectoryIterator( $cache_dir, RecursiveDirectoryIterator::SKIP_DOTS ),
		RecursiveIteratorIterator::CHILD_FIRST
	);
	foreach ( $it as $file ) {
		if ( $file->isDir() ) {
			// phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_rmdir -- Removing QW Optimize-owned empty cache directory after deleting files.
			@rmdir( $file->getPathname() );
		} else {
			wp_delete_file( $file->getPathname() );
		}
	}
	// phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_rmdir -- Removing QW Optimize-owned empty cache directory after deleting files.
	@rmdir( $cache_dir );
}

// Drop-ins we own.
$advanced = ( defined( 'WP_CONTENT_DIR' ) ? WP_CONTENT_DIR : '' ) . '/advanced-cache.php';
if ( file_exists( $advanced ) ) {
	// phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents,WordPress.PHP.NoSilencedErrors.Discouraged -- Bounded read of local drop-in header for ownership before uninstall cleanup.
	$head = (string) @file_get_contents( $advanced, false, null, 0, 120 );
	if ( false !== strpos( $head, 'QW Optimize' ) ) {
		wp_delete_file( $advanced );
	}
}
$object = ( defined( 'WP_CONTENT_DIR' ) ? WP_CONTENT_DIR : '' ) . '/object-cache.php';
if ( file_exists( $object ) ) {
	// phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents,WordPress.PHP.NoSilencedErrors.Discouraged -- Bounded read of local object-cache drop-in header for ownership.
	$head = (string) @file_get_contents( $object, false, null, 0, 200 );
	if ( false !== strpos( $head, 'QW Optimize Object Cache' ) ) {
		wp_delete_file( $object );
	}
}


// Remove only QW Optimize-owned .htaccess marker rules.
if ( defined( 'ABSPATH' ) ) {
	if ( ! function_exists( 'insert_with_markers' ) && file_exists( ABSPATH . 'wp-admin/includes/misc.php' ) ) {
		require_once ABSPATH . 'wp-admin/includes/misc.php';
	}
	if ( ! function_exists( 'get_home_path' ) && file_exists( ABSPATH . 'wp-admin/includes/file.php' ) ) {
		require_once ABSPATH . 'wp-admin/includes/file.php';
	}
	$home_path = function_exists( 'get_home_path' ) ? get_home_path() : '';
	$htaccess  = is_string( $home_path ) && '' !== $home_path ? trailingslashit( $home_path ) . '.htaccess' : '';
	if ( function_exists( 'insert_with_markers' ) && '' !== $htaccess && file_exists( $htaccess ) ) {
		insert_with_markers( $htaccess, 'QW Optimize', array() );
	}
}