<?php

/**
 * Fix paths so they don't trigger an error on Windows.
 *
 * This class is meant to be a workaround for PHP bug #43817.
 *
 * On Windows IIS, if the parent directory is not readable, then the given directory will give access denied.
 *
 * @since 3.4.0
 */
class BackWPup_Path_Fixer {

	/**
	 * Fix the path if necessary.
	 *
	 * @param string $path
	 *
	 * @return string the fixed path
	 */
	public static function fix_path( string $path ): string {
		if ( get_site_option( 'backwpup_cfg_windows' ) ) {
			$path = trailingslashit( $path );

			if ( is_dir( $path . 'wp-content' ) ) {
				return $path . 'wp-content/..';
			}
		}

		return $path;
	}

	/**
	 * Normalize path separators to forward slashes on Windows.
	 *
	 * @param string|null $path The path to normalize.
	 *
	 * @return string The normalized path.
	 */
	public static function slashify( ?string $path ): string {
		if ( ! $path ) {
			return '';
		}

		if ( '\\' === DIRECTORY_SEPARATOR ) {
			return str_replace( '\\', '/', $path );
		}
		return $path;
	}
}