namespace Fitness_core_BE.Helpers
{
    // BusinessLogoId (ClientBusiness) holds a relative /Uploads path, not a public URL — there's
    // no static-file serving configured for it, so the only way to hand it to a client (web or
    // mobile) is to read the bytes server-side and inline them as a base64 data URL.
    public static class BusinessLogoHelper
    {
        public static async Task<string?> ReadAsDataUrlAsync(string? businessLogoId)
        {
            if (string.IsNullOrEmpty(businessLogoId)) return null;

            string uploadsRoot = Path.GetFullPath(Path.Combine(Directory.GetCurrentDirectory(), ".."));
            string relativePath = Uri.UnescapeDataString(businessLogoId).Replace("/", Path.DirectorySeparatorChar.ToString());
            string filePath = uploadsRoot + relativePath;
            if (!File.Exists(filePath)) return null;

            byte[] bytes = await File.ReadAllBytesAsync(filePath);
            string ext = Path.GetExtension(filePath).TrimStart('.').ToLowerInvariant();
            string mime = ext == "png" ? "image/png" : ext == "webp" ? "image/webp" : "image/jpeg";
            return $"data:{mime};base64,{Convert.ToBase64String(bytes)}";
        }
    }
}