using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using GB5Shared.DTO.Framework.Criteria;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.GenerateAutoNumber;
using DMSDAL.CustomCode.Folder;
using DMSDAL.DTO.Folder;
using GB5Shared.DTO.Framework.AutoNumber;
using GB5Shared.Resource.Response;
using GB5Shared.Validation;
using System.ComponentModel.DataAnnotations;


namespace DMSBLL.Folder
{
    public class FolderBLL : IFolderBLL
    {
        private readonly IFolderDAL _FolderDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;

        public FolderBLL(IFolderDAL FolderDAL, AutoNumber AutoNumber, IValidation Validation)
        {
            _FolderDAL = FolderDAL;
            _AutoNumber = AutoNumber;
            _Validation = Validation;
        }

        public async Task<string> GetFolder(int SpaceFolderId, LoginDTO LoginDTO)
        {
            try
            {
                return await _FolderDAL.GetFolder(SpaceFolderId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }


        public async Task<string> SaveFolder(FolderDTO FolderDTO, LoginDTO LoginDTO)
        {
            if (FolderDTO == null) throw new ArgumentNullException(nameof(FolderDTO));
            AutoNumberDTO? autoNumberDTO = null;
            try
            {
                await _Validation.NotEmpty(FolderDTO.SpaceFolderName, nameof(FolderDTO.SpaceFolderName));
                FolderDTO.FolderModifiedById = LoginDTO.UserId;
                FolderDTO.FolderModifiedOn = DateTime.UtcNow;

                int initialId = FolderDTO.SpaceFolderId;
                int count = 1 + initialId;
                if (initialId == 0)
                {
                    AutoNumberDTO AutoNumberDTO = await _AutoNumber.GetNumberAsync(count, "SPACEFOLDER", LoginDTO);
                    FolderDTO.SpaceFolderId = AutoNumberDTO.StartNumber;
                    FolderDTO.FolderCreatedById = LoginDTO.UserId;
                    FolderDTO.FolderCreatedOn = DateTime.UtcNow;

                    await _FolderDAL.SaveFolder(FolderDTO, LoginDTO);
                    return $"{SuccessResponse.SaveSuccessMessage} {FolderDTO.SpaceFolderId}";
                }
                else
                {
                    await _FolderDAL.UpdateFolder(FolderDTO, LoginDTO);
                    return $"{SuccessResponse.UpdateSuccessMessage} {FolderDTO.SpaceFolderId}";
                }
            }
            catch (ValidationException vex)
            {
                throw new Exception(vex.Message);
            }
            catch (Exception)
            {
                if (autoNumberDTO != null && FolderDTO.SpaceFolderId > 0)
                    await _AutoNumber.RollbackAutoNumber("SPACEFOLDER", FolderDTO.SpaceFolderId, LoginDTO);

                throw;
            }
        }

        public async Task<string> GetSelectListFolder(int FirstNumber, int MaxResult, CriteriaDTO criteriaDTO, LoginDTO LoginDTO)
        {
            try
            {
                return await _FolderDAL.GetSelectListFolder(FirstNumber, MaxResult, criteriaDTO, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

        public async Task<string> DeleteFolder(int SpaceFolderId, LoginDTO LoginDTO)
        {
            try
            {
                return await _FolderDAL.DeleteFolder(SpaceFolderId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}