<?php

declare(strict_types=1);

namespace MeshVault\Tests\Integration;

/** Sorted relative paths and physical contents/stat data; never catalog row data. */
final class PhysicalFileSnapshot
{
    public static function capture(string $root): array
    {
        $snapshot = [];
        $files = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator(
            $root,
            \FilesystemIterator::SKIP_DOTS
        ));
        foreach ($files as $file) {
            $path = $file->getPathname();
            clearstatcache(true, $path);
            $relative = str_replace('\\', '/', substr($path, strlen($root) + 1));
            $snapshot[$relative] = [
                'bytes' => file_get_contents($path),
                'size' => filesize($path),
                'mtime' => filemtime($path),
            ];
        }
        ksort($snapshot);
        return $snapshot;
    }
}