namespace GB5Shared.Storage
{
    /// <summary>
    /// Resolves a physical storage path from a configurable template and a <see cref="StoragePathContext"/>.
    /// The resolved path is relative to the storage root (base path).
    /// Forward slashes are used as the separator — providers normalise to OS separators themselves.
    /// </summary>
    public static class StoragePathResolver
    {
        /// <summary>
        /// Resolves all template tokens and returns a forward-slash-delimited relative path.
        /// </summary>
        public static string Resolve(string template, StoragePathContext ctx)
        {
            return template
                .Replace("{ClientId}",         ctx.ClientId,                          StringComparison.Ordinal)
                .Replace("{ObjectTypeCode}",   ctx.ObjectTypeCode,                    StringComparison.Ordinal)
                .Replace("{ObjectId}",         ctx.ObjectId.ToString(),               StringComparison.Ordinal)
                .Replace("{Year}",             ctx.Year.ToString(),                   StringComparison.Ordinal)
                .Replace("{Month}",            ctx.Month.ToString("D2"),              StringComparison.Ordinal)
                .Replace("{AttachmentId}",     ctx.AttachmentId,                      StringComparison.Ordinal)
                .Replace("{Ext}",              ctx.Ext,                               StringComparison.Ordinal)
                .Replace("{DocumentTypeCode}", ctx.DocumentTypeCode,                  StringComparison.Ordinal)
                .Replace('\\', '/');
        }
    }
}