using System.Collections.Generic;
using System.Threading.Tasks;
using GB5Shared.DTO.ECM;
using GB5Shared.DTO.Framework.Login;
using Microsoft.AspNetCore.Http;

namespace GB5Shared.FileUpload
{
    public interface IFileUploadBLL
    {
        // Matches the GB4 signature: ObjectId, ObjectTypeId, DocumentDetailId + file.
        // TempRefKey is optional — supply when ObjectId=0 (pre-save upload for multi-step forms).
        Task<string>                           FileUploadWebWithMetaData    (IFormFile File, int ObjectId, int ObjectTypeId, int DocumentDetailId, LoginDTO LoginDTO, string? tempRefKey = null);

        // Simplified Base64 JSON upload — no multipart/FormData needed.
        // TempRefKey is optional — supply when ObjectId=0 (pre-save upload for multi-step forms).
        Task<FileUploadTempRefKeyResponseDTO>  FileUploadBase64Async        (FileUploadBase64RequestDTO request, LoginDTO LoginDTO, string? tempRefKey = null);

        Task<string>                           GetAttachment                (int AttachmentId, LoginDTO LoginDTO);
        Task<IEnumerable<AttachmentListDTO>>   ListAttachments              (int ObjectId, int ObjectTypeId, LoginDTO LoginDTO);
        Task<IEnumerable<AttachmentListDTO>>   ListAttachmentsByObjectId            (int ObjectId,                     LoginDTO LoginDTO);
        Task<IEnumerable<AttachmentListDTO>>   ListAttachmentsByHeaderAndObjectId   (int ObjectHeaderId, int ObjectId, LoginDTO LoginDTO);
        Task<string>                           UpdateAttachment             (AttachmentUpdateDTO Dto, LoginDTO LoginDTO);
        Task<string>                           DeleteAttachment             (int AttachmentId, LoginDTO LoginDTO);
        Task<AttachmentBase64ResponseDTO>      DownloadAttachmentAsBase64   (int AttachmentId, LoginDTO LoginDTO);

        Task<IEnumerable<AttachmentListDTO>> ListAttachmentsByHeaderAndObjectHeaderTypeId(int ObjectHeaderTypeId, int ObjectHeaderId, LoginDTO LoginDTO);
        Task<string> UpdateAttachmentObjectId(AttachmentUpdateDTO Dto, LoginDTO LoginDTO);
    }
}