<?php
/**
 * Fired when the plugin is uninstalled.
 *
 * @package    Agentorie_Chat
 * @since      1.0.0
 */

// If uninstall not called from WordPress, exit.
if ( ! defined( 'WP_UNINSTALL_PLUGIN' ) ) {
	exit;
}

/**
 * Clean up plugin data on uninstall.
 *
 * Only removes database tables and log files if the user has opted in via settings.
 * Configuration options are always removed.
 */

global $wpdb;

// Get settings to check if we should delete data.
$agentorie_settings    = get_option( 'agentorie_chat_settings', array() );
$agentorie_delete_data = isset( $agentorie_settings['delete_data_on_uninstall'] ) && $agentorie_settings['delete_data_on_uninstall'];

/*
|--------------------------------------------------------------------------
| Always Delete: Options
|--------------------------------------------------------------------------
*/

delete_option( 'agentorie_chat_settings' );
delete_option( 'agentorie_chat_version' );
delete_option( 'agentorie_chat_db_version' );
delete_option( 'agentorie_chat_log_hash' );
delete_option( 'agentorie_chat_license_backup' );
delete_option( 'agentorie_chat_activated_at' );

/*
|--------------------------------------------------------------------------
| Always Delete: Transients
|--------------------------------------------------------------------------
*/

// Named transients.
delete_transient( 'agentorie_chat_license_status' );
delete_transient( 'agentorie_chat_api_health' );
delete_transient( 'agentorie_chat_activated' );
delete_transient( 'agentorie_chat_admin_presence' );
delete_transient( 'agentorie_chat_license_cache' );
delete_transient( 'agentorie_chat_config_cache' );

// Wildcard transients (agentorie_chat_* and agentorie_*).
// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, PluginCheck.Security.DirectDB.UnescapedDBParameter
$wpdb->query(
	"DELETE FROM {$wpdb->options} 
	WHERE option_name LIKE '_transient_agentorie_%' 
	OR option_name LIKE '_transient_timeout_agentorie_%'"
);

/*
|--------------------------------------------------------------------------
| Always Delete: User Meta
|--------------------------------------------------------------------------
*/

// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, PluginCheck.Security.DirectDB.UnescapedDBParameter
$wpdb->query(
	"DELETE FROM {$wpdb->usermeta} 
	WHERE meta_key LIKE 'agentorie_%'"
);

/*
|--------------------------------------------------------------------------
| Always Delete: Scheduled Cron Events
|--------------------------------------------------------------------------
*/

wp_clear_scheduled_hook( 'agentorie_chat_cleanup_sessions' );
wp_clear_scheduled_hook( 'agentorie_chat_daily_maintenance' );
wp_clear_scheduled_hook( 'agentorie_chat_sync_to_saas' );
wp_clear_scheduled_hook( 'agentorie_chat_check_license' );
wp_clear_scheduled_hook( 'agentorie_chat_daily_index' );

/*
|--------------------------------------------------------------------------
| Optional: Database Tables (if user opted in)
|--------------------------------------------------------------------------
*/

if ( $agentorie_delete_data ) {
	// Table names.
	$agentorie_tables = array(
		$wpdb->prefix . 'agentorie_sessions',
		$wpdb->prefix . 'agentorie_chat_messages',
		$wpdb->prefix . 'agentorie_contacts',
		$wpdb->prefix . 'agentorie_visitors',
		$wpdb->prefix . 'agentorie_site_content',
	);

	// Drop tables.
	foreach ( $agentorie_tables as $agentorie_table ) {
		// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.DirectDatabaseQuery.SchemaChange, WordPress.DB.PreparedSQL.InterpolatedNotPrepared, PluginCheck.Security.DirectDB.UnescapedDBParameter
		$wpdb->query( "DROP TABLE IF EXISTS `{$agentorie_table}`" );
	}

	/*
	|--------------------------------------------------------------------------
	| Optional: Log Files (if user opted in)
	|--------------------------------------------------------------------------
	*/

	// Delete log directory in uploads.
	$agentorie_upload_dir     = wp_upload_dir();
	$agentorie_log_dir_upload = trailingslashit( $agentorie_upload_dir['basedir'] ) . 'agentorie-chat/';
	if ( is_dir( $agentorie_log_dir_upload ) ) {
		agentorie_chat_uninstall_delete_directory( $agentorie_log_dir_upload );
	}
}

/*
|--------------------------------------------------------------------------
| Helper Functions
|--------------------------------------------------------------------------
*/

/**
 * Recursively delete a directory and its contents.
 *
 * @param string $dir Directory path to delete.
 * @return bool True on success, false on failure.
 */
function agentorie_chat_uninstall_delete_directory( $dir ) {
	if ( ! is_dir( $dir ) ) {
		return false;
	}

	// Security check: only delete directories within uploads.
	$agentorie_upload_dir = wp_upload_dir();
	$allowed_base         = trailingslashit( $agentorie_upload_dir['basedir'] );
	if ( strpos( realpath( $dir ), realpath( $allowed_base ) ) !== 0 ) {
		return false;
	}

	$files = array_diff( scandir( $dir ), array( '.', '..' ) );

	foreach ( $files as $file ) {
		$path = trailingslashit( $dir ) . $file;

		if ( is_dir( $path ) ) {
			agentorie_chat_uninstall_delete_directory( $path );
		} else {
			// phpcs:ignore WordPress.WP.AlternativeFunctions.unlink_unlink
			unlink( $path );
		}
	}

	// phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_rmdir
	return rmdir( $dir );
}