Method loadSnapshot

src/FileRise/Domain/DiskUsageModel.php:552–570

* Load the snapshot from disk, or return null if missing or invalid. */

(string $sourceId = '')

     * Load the snapshot from disk, or return null if missing or invalid.
     */
    public static function loadSnapshot(string $sourceId = ''): ?array
    {
        $path = self::snapshotPath($sourceId);
        if (!is_file($path)) {
            return null;
        }
        $raw = @file_get_contents($path);
        if ($raw === false || $raw === '') {
            return null;
        }
        $data = json_decode($raw, true);
        if (!is_array($data)) {
            return null;
        }
        if (!isset($data['version']) || (int)$data['version'] !== 1) {
            return null;
        }
        return $data;
    }

    /**
     * Compute a lightweight summary for the Admin panel.