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

namespace AdminBLL.MailList
{
        public class MailListBLL : IMailListBLL
        {
            private readonly IMailListDAL _MailListDAL;
            private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;


        public MailListBLL(IMailListDAL MailListDAL, AutoNumber AutoNumber,IValidation validation)
            {
                _MailListDAL = MailListDAL;
                _AutoNumber = AutoNumber;
                _Validation = validation;

        }

        public async Task<MailListDTO> GetMailList(int MailListId, LoginDTO LoginDTO)
            {
                try
                {
                    return await _MailListDAL.GetMailList(MailListId, LoginDTO);
                }
                catch (Exception)
                {
                    throw;
                }
            }

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

            try
            {
                await _Validation.NotEmpty(MailListDTO.MailListName, nameof(MailListDTO.MailListName));
                MailListDTO.MailListModifiedById = LoginDTO.UserId;
                MailListDTO.MailListModifiedOn = DateTime.UtcNow;

                int InitialId = MailListDTO.MailListId;
                int count = 1 + InitialId;
                if (InitialId == 0)
                {
                    AutoNumberDTO AutoNumberDTO = await _AutoNumber.GetNumberAsync(count, "MAILLIST", LoginDTO);
                    MailListDTO.MailListId = AutoNumberDTO.StartNumber;
                    MailListDTO.MailListCreatedById = LoginDTO.UserId;
                    MailListDTO.MailListCreatedOn = DateTime.UtcNow;

                    await _MailListDAL.SaveMailList(MailListDTO, LoginDTO);
                    return $"{SuccessResponse.SaveSuccessMessage} {MailListDTO.MailListId}";
                }
                else
                {
                    await _MailListDAL.UpdateMailList(MailListDTO, LoginDTO);
                    return $"{SuccessResponse.UpdateSuccessMessage} {MailListDTO.MailListId}";
                }
            }
            catch (ValidationException vex)
            {
                throw new Exception(vex.Message);
            }
            catch (Exception)
            {
                if (autoNumberDTO != null && MailListDTO.MailListId > 0)
                    await _AutoNumber.RollbackAutoNumber("MAILLIST", MailListDTO.MailListId, LoginDTO);

                throw;
            }
        }


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

        public async Task<string> DeleteMailList(int MailListId, LoginDTO LoginDTO)
            {
                try
                {
                    return await _MailListDAL.DeleteMailList(MailListId, LoginDTO);
                }
                catch (Exception)
                {
                    throw;
                }
            }
        }
    }