<?php
/**
 * Fired when the plugin is uninstalled.
 *
 * @link       https://www.shost.vn
 * @package    AIO_Tools
 */

// If uninstall not called from WordPress, then exit.
if ( ! defined( 'WP_UNINSTALL_PLUGIN' ) ) {
	exit;
}

// 1. Always clear scheduled WP-Cron hooks registered by AIO Tools.
$aio_cron_hooks = array(
	'aio_weekly_db_cleanup',
	'aio_db_auto_cleanup_event',
	'aio_daily_integrity_scan',
	'aio_process_webp_bulk_queue',
	'aio_convert_webp_cron',
	'aio_cache_preload_batch',
	'aio_page_cache_gc_cron',
);
foreach ( $aio_cron_hooks as $hook ) {
	wp_clear_scheduled_hook( $hook );
}

delete_option( 'aio_cache_preload_state' );

// 2. Always clean up disk page cache directory and non-destructive .htaccess markers.
if ( ! function_exists( 'aio_uninstall_delete_dir' ) ) {
	function aio_uninstall_delete_dir( $dir_path ) {
		if ( ! is_dir( $dir_path ) ) {
			return;
		}
		$dir_path = trailingslashit( $dir_path );
		$items    = @scandir( $dir_path ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
		if ( is_array( $items ) ) {
			foreach ( $items as $name ) {
				if ( $name === '.' || $name === '..' ) {
					continue;
				}
				$item = $dir_path . $name;
				if ( is_dir( $item ) && ! is_link( $item ) ) {
					aio_uninstall_delete_dir( $item );
				} else {
					@unlink( $item ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
				}
			}
		}
		@rmdir( $dir_path ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
	}
}

if ( ! function_exists( 'insert_with_markers' ) && file_exists( ABSPATH . 'wp-admin/includes/misc.php' ) ) {
	require_once ABSPATH . 'wp-admin/includes/misc.php';
}

$upload_dir = wp_upload_dir();
if ( ! empty( $upload_dir['basedir'] ) ) {
	$cache_dir = trailingslashit( $upload_dir['basedir'] ) . 'aio-cache';
	if ( is_dir( $cache_dir ) ) {
		aio_uninstall_delete_dir( $cache_dir );
	}

	$assets_dir = trailingslashit( $upload_dir['basedir'] ) . 'aio-assets';
	if ( is_dir( $assets_dir ) ) {
		aio_uninstall_delete_dir( $assets_dir );
	}

	$fonts_dir = trailingslashit( $upload_dir['basedir'] ) . 'aio-fonts';
	if ( is_dir( $fonts_dir ) ) {
		aio_uninstall_delete_dir( $fonts_dir );
	}

	$uploads_htaccess = trailingslashit( $upload_dir['basedir'] ) . '.htaccess';
	if ( file_exists( $uploads_htaccess ) && is_writable( $uploads_htaccess ) && function_exists( 'insert_with_markers' ) ) {
		insert_with_markers( $uploads_htaccess, 'AIO Tools Upload Protection', array() );
	}
}

// Safely remove AIO Tools signed WordPress Drop-ins (advanced-cache.php & object-cache.php)
$adv_dropin = trailingslashit( WP_CONTENT_DIR ) . 'advanced-cache.php';
if ( file_exists( $adv_dropin ) && is_readable( $adv_dropin ) ) {
	$adv_head = (string) @file_get_contents( $adv_dropin, false, null, 0, 2048 ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
	if ( strpos( $adv_head, 'AIO_TOOLS_ADVANCED_CACHE_DROPIN' ) !== false ) {
		@unlink( $adv_dropin ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
		$wp_cfg = '';
		if ( file_exists( ABSPATH . 'wp-config.php' ) ) {
			$wp_cfg = ABSPATH . 'wp-config.php';
		} elseif ( @file_exists( dirname( ABSPATH ) . '/wp-config.php' ) && ! @file_exists( dirname( ABSPATH ) . '/wp-settings.php' ) ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
			$wp_cfg = dirname( ABSPATH ) . '/wp-config.php';
		}
		if ( $wp_cfg !== '' && is_writable( $wp_cfg ) ) {
			$cfg_src = (string) @file_get_contents( $wp_cfg ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
			if ( strpos( $cfg_src, '// Added by AIO Tools' ) !== false ) {
				$cfg_clean = preg_replace( '/^[ \t]*define\s*\(\s*[\'"]WP_CACHE[\'"].*Added by AIO Tools.*(?:\r?\n)?/mi', '', $cfg_src );
				if ( is_string( $cfg_clean ) && strlen( $cfg_clean ) > 80 ) {
					@file_put_contents( $wp_cfg, $cfg_clean, LOCK_EX ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
				}
			}
		}
	}
}

$obj_dropin = trailingslashit( WP_CONTENT_DIR ) . 'object-cache.php';
if ( file_exists( $obj_dropin ) && is_readable( $obj_dropin ) ) {
	$obj_head = (string) @file_get_contents( $obj_dropin, false, null, 0, 2048 ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
	if ( strpos( $obj_head, 'AIO_TOOLS_OBJECT_CACHE_DROPIN' ) !== false ) {
		if ( isset( $GLOBALS['wp_object_cache'] ) && is_object( $GLOBALS['wp_object_cache'] ) ) {
			if ( method_exists( $GLOBALS['wp_object_cache'], 'flush' ) ) {
				@$GLOBALS['wp_object_cache']->flush(); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
			}
			if ( method_exists( $GLOBALS['wp_object_cache'], 'disable_persistence' ) ) {
				@$GLOBALS['wp_object_cache']->disable_persistence(); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
			}
		}
		if ( function_exists( 'wp_using_ext_object_cache' ) ) {
			wp_using_ext_object_cache( false );
		}
		@unlink( $obj_dropin ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
		clearstatcache( true, $obj_dropin );
		if ( function_exists( 'opcache_invalidate' ) ) {
			@opcache_invalidate( $obj_dropin, true ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
		}
	}
}

$root_htaccess = ABSPATH . '.htaccess';
if ( file_exists( $root_htaccess ) && is_writable( $root_htaccess ) ) {
	$ht_src = (string) @file_get_contents( $root_htaccess ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
	if ( strpos( $ht_src, '# BEGIN AIO Tools Page Cache' ) !== false || strpos( $ht_src, '# BEGIN AIO Tools WebP Delivery' ) !== false ) {
		$ht_clean = preg_replace( '/# BEGIN AIO Tools (?:Page Cache|WebP Delivery).*?# END AIO Tools (?:Page Cache|WebP Delivery)\r?\n*/s', '', $ht_src );
		if ( is_string( $ht_clean ) ) {
			@file_put_contents( $root_htaccess, $ht_clean, LOCK_EX ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
		}
	}
	if ( function_exists( 'insert_with_markers' ) ) {
		insert_with_markers( $root_htaccess, 'AIO Tools Browser Cache', array() );
	}
}

// 3. Only remove database settings, usermeta, and custom log tables if explicitly opted in.
$aio_options = get_option( 'aio_options', array() );
if ( ! empty( $aio_options['optDeleteDataOnUninstall'] ) ) {
	global $wpdb;

	$option_keys = array(
		'aio_options',
		'w2w_options',
		'aio_db_version',
		'aio_encryption_key',
		'aio_redirect_rules',
		'aio_404_logs',
		'aio_blocked_ips',
		'aio_webp_bulk_stats',
		'aio_webp_bulk_queue',
		'aio_core_integrity_issues',
		'aio_dismissed_notices',
	);
	foreach ( $option_keys as $opt_key ) {
		delete_option( $opt_key );
	}

	// Remove plugin transients
	$wpdb->query( "DELETE FROM {$wpdb->options} WHERE option_name LIKE '\_transient\_aio\_%' OR option_name LIKE '\_transient\_timeout\_aio\_%'" );

	// Remove plugin post meta
	$post_meta_keys = array(
		'_aio_webp_converted',
		'_aio_seo_title',
		'_aio_seo_desc',
		'_aio_seo_og_image',
		'_aio_seo_noindex',
	);
	foreach ( $post_meta_keys as $pmeta_key ) {
		delete_metadata( 'post', 0, $pmeta_key, '', true );
	}

	// Remove plugin user meta
	$user_meta_keys = array(
		'_aio_2fa_enabled',
		'_aio_2fa_secret',
		'_aio_2fa_backup_codes',
		'_aio_2fa_last_slice',
		'aio_social_provider',
		'aio_social_id',
		'aio_social_google_id',
		'aio_social_facebook_id',
	);
	foreach ( $user_meta_keys as $meta_key ) {
		delete_metadata( 'user', 0, $meta_key, '', true );
	}

	// Drop custom plugin tables
	$tables = array(
		$wpdb->prefix . 'aio_audit_logs',
		$wpdb->prefix . 'aio_lockouts',
		$wpdb->prefix . 'aio_404_logs',
		$wpdb->prefix . 'aio_email_logs',
	);
	foreach ( $tables as $table ) {
		// phpcs:ignore WordPress.DB.DirectDatabaseQuery.SchemaChange, WordPress.DB.PreparedSQL.InterpolatedNotPrepared
		$wpdb->query( "DROP TABLE IF EXISTS `{$table}`" );
	}
}