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

namespace AdminBLL.Division
{
    public class DivisionBLL : IDivisionBLL
    {
        private readonly IDivisionDAL _DivisionDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;
        public DivisionBLL(IDivisionDAL IDivisionDAL, AutoNumber AutoNumber,IValidation validation)
        {
            _DivisionDAL = IDivisionDAL;
            _AutoNumber = AutoNumber;
            _Validation = validation;
        }

        public async Task<string> GetDivision(int DivisionId, LoginDTO LoginDTO)
        {
            try
            {
                return await _DivisionDAL.GetDivision(DivisionId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

        public async Task<string> GetSelectListDivision(CriteriaDTO criteriaDTO, LoginDTO loginDTO)
        {
            try
            {
                return await _DivisionDAL.GetSelectListDivision(criteriaDTO, loginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }


        public async Task<string> SaveDivision(DivisionDTO DivisionDTO, LoginDTO LoginDTO)
        {
            if (DivisionDTO == null) throw new ArgumentNullException(nameof(DivisionDTO));
            AutoNumberDTO? autoNumberDTO = null;

            try
            {
                await _Validation.NotEmpty(DivisionDTO.DivisionCode, nameof(DivisionDTO.DivisionCode));
                await _Validation.NotEmpty(DivisionDTO.DivisionName, nameof(DivisionDTO.DivisionName));
                DivisionDTO.DivisionModifiedById = LoginDTO.UserId;
                DivisionDTO.DivisionModifiedOn = DateTime.UtcNow;

                int initialId = DivisionDTO.DivisionId;
                int count = 1 + initialId;
                if (initialId == 0)
                {
                    AutoNumberDTO AutoNumberDTO = await _AutoNumber.GetNumberAsync(count, "DIVISION", LoginDTO);
                    DivisionDTO.DivisionId = AutoNumberDTO.StartNumber;
                    DivisionDTO.DivisionCreatedById = LoginDTO.UserId;
                    DivisionDTO.DivisionCreatedOn = DateTime.UtcNow;


                    await _DivisionDAL.SaveDivision(DivisionDTO, LoginDTO);
                    return $"{SuccessResponse.SaveSuccessMessage} {DivisionDTO.DivisionId}";
                }
                else
                {
                    await _DivisionDAL.UpdateDivision(DivisionDTO, LoginDTO);
                    return $"{SuccessResponse.UpdateSuccessMessage} {DivisionDTO.DivisionId}";
                }
            }
            catch (ValidationException vex)
            {
                throw new Exception(vex.Message);
            }
            catch (Exception)
            {
                if (autoNumberDTO != null && DivisionDTO.DivisionId > 0)
                    await _AutoNumber.RollbackAutoNumber("DIVISION", DivisionDTO.DivisionId, LoginDTO);

                throw;
            }
        }

        public async Task<string> DeleteDivision(int DivisionId,LoginDTO LoginDTO)
        {
            try
            {
                return await _DivisionDAL.DeleteDivision(DivisionId, LoginDTO);
            }
            catch(Exception)
            {
                throw;
            }
        }
    }
}