<?php
/**
 * Shared uninstall helpers.
 */

defined( 'ABSPATH' ) || exit;

/**
 * Return the full list of options removed on uninstall.
 *
 * @return string[]
 */
function eightdigits_factura_get_uninstall_options(): array {
	return array(
		'eightdigits_factura_db_version',
		'eightdigits_factura_company_name',
		'eightdigits_factura_nif',
		'eightdigits_factura_address',
		'eightdigits_factura_postal_code',
		'eightdigits_factura_city',
		'eightdigits_factura_province',
		'eightdigits_factura_phone',
		'eightdigits_factura_email',
		'eightdigits_factura_invoice_prefix',
		'eightdigits_factura_series_start',
		'eightdigits_factura_invoice_counter',
		'eightdigits_factura_default_iva',
		'eightdigits_factura_trigger_statuses',
		'eightdigits_factura_attach_pdf',
	);
}

/**
 * Recursively delete a directory and all its contents.
 */
function eightdigits_factura_delete_directory( string $dir ): void {
	if ( ! is_dir( $dir ) ) {
		return;
	}

	$items = scandir( $dir );
	if ( false === $items ) {
		return;
	}

	foreach ( $items as $item ) {
		if ( '.' === $item || '..' === $item ) {
			continue;
		}

		$path = $dir . DIRECTORY_SEPARATOR . $item;
		if ( is_dir( $path ) ) {
			eightdigits_factura_delete_directory( $path );
		} else {
			wp_delete_file( $path );
		}
	}

	rmdir( $dir ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_rmdir -- Removing an empty directory during uninstall.
}

/**
 * Remove all plugin data on uninstall.
 */
function eightdigits_factura_uninstall_cleanup(): void {
	global $wpdb;

	// phpcs:ignore WordPress.DB.DirectDatabaseQuery.SchemaChange, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.DirectDatabaseQuery.DirectQuery -- Schema change on uninstall.
	$wpdb->query( "DROP TABLE IF EXISTS `{$wpdb->prefix}eightdigits_factura_invoices`" );

	foreach ( eightdigits_factura_get_uninstall_options() as $option ) {
		delete_option( $option );
	}

	delete_transient( 'eightdigits_factura_dashboard_stats' );

	$upload_dir               = wp_upload_dir();
	$eightdigits_factura_dir  = trailingslashit( $upload_dir['basedir'] ) . 'eightdigits-factura';
	if ( is_dir( $eightdigits_factura_dir ) ) {
		eightdigits_factura_delete_directory( $eightdigits_factura_dir );
	}
}