using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
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 MMDAL.CustomCode.StandardType;
using MMDAL.DTO.StandardType;

namespace MMBLL.StandardType
{
    public class StandardTypeBLL : IStandardTypeBLL
    {
        private readonly IStandardTypeDAL _StandardTypeDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;

        public StandardTypeBLL(IStandardTypeDAL StandardTypeDAL, AutoNumber AutoNumber, IValidation validation)
        {
            _StandardTypeDAL = StandardTypeDAL;
            _AutoNumber = AutoNumber;
            _Validation = validation;
        }

        public async Task<StandardTypeDTO> GetStandardType(int StandardTypeId, LoginDTO LoginDTO)
        {
            try
            {
                return await _StandardTypeDAL.GetStandardType(StandardTypeId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

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

            try
            {
                await _Validation.NotEmpty(StandardTypeDTO.StandardTypeCode, nameof(StandardTypeDTO.StandardTypeCode));
                await _Validation.NotEmpty(StandardTypeDTO.StandardTypeName, nameof(StandardTypeDTO.StandardTypeName));
                StandardTypeDTO.StandardTypeModifiedById = LoginDTO.UserId;
                StandardTypeDTO.StandardTypeModifiedOn = DateTime.UtcNow;

                int InitialId = StandardTypeDTO.StandardTypeId;
                int count = 1 + InitialId;
                if (InitialId == 0)
                {
                    AutoNumberDTO AutoNumberDTO = await _AutoNumber.GetNumberAsync(count, "STANDARDTYPE", LoginDTO);
                    StandardTypeDTO.StandardTypeId = AutoNumberDTO.StartNumber;
                    StandardTypeDTO.StandardTypeCreatedById = LoginDTO.UserId;
                    StandardTypeDTO.StandardTypeCreatedOn = DateTime.UtcNow;

                    await _StandardTypeDAL.SaveStandardType(StandardTypeDTO, LoginDTO);
                    return $"Details Saved Successfully";
                }
                else
                {
                    await _StandardTypeDAL.UpdateStandardType(StandardTypeDTO, LoginDTO);
                    return $"Details Updated Successfully";
                }
            }
            catch (ValidationException vex)
            {
                throw new Exception(vex.Message);
            }
            catch (Exception)
            {
                if (autoNumberDTO != null && StandardTypeDTO.StandardTypeId > 0)
                    await _AutoNumber.RollbackAutoNumber("STANDARDTYPE", StandardTypeDTO.StandardTypeId, LoginDTO);

                throw;
            }
        }


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

        public async Task<string> DeleteStandardType(int StandardTypeId, LoginDTO LoginDTO)
        {
            try
            {
                return await _StandardTypeDAL.DeleteStandardType(StandardTypeId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}