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.PriceCategory;
using MMDAL.DTO.PriceCategory;

namespace MMBLL.PriceCategory
{
    public class PriceCategoryBLL : IPriceCategoryBLL
    {
        private readonly IPriceCategoryDAL _PriceCategoryDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;
        public PriceCategoryBLL(IPriceCategoryDAL IPriceCategoryDAL,AutoNumber AutoNumber, IValidation Validation)
        {
            _PriceCategoryDAL = IPriceCategoryDAL;
            _AutoNumber = AutoNumber;
            _Validation = Validation;
        }

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

        public async Task<PriceCategoryDTO> GetPriceCategory(int PriceCategoryId, LoginDTO LoginDTO)
        {
            try
            {
                return await _PriceCategoryDAL.GetPriceCategory(PriceCategoryId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

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

            try
            {
                await _Validation.NotEmpty(PriceCategoryDTO.PriceCategoryCode, nameof(PriceCategoryDTO.PriceCategoryCode));
                await _Validation.NotEmpty(PriceCategoryDTO.PriceCategoryName, nameof(PriceCategoryDTO.PriceCategoryName));
                PriceCategoryDTO.PriceCategoryModifiedById = LoginDTO.UserId;
                PriceCategoryDTO.PriceCategoryModifiedOn = DateTime.UtcNow;

                int InitialId = PriceCategoryDTO.PriceCategoryId;
                int count = 1 + InitialId;
                if (InitialId == 0)
                {
                    AutoNumberDTO AutoNumberDTO = await _AutoNumber.GetNumberAsync(count, "PRICECATEGORY", LoginDTO);
                    PriceCategoryDTO.PriceCategoryId = AutoNumberDTO.StartNumber;
                    PriceCategoryDTO.PriceCategoryCreatedById = LoginDTO.UserId;
                    PriceCategoryDTO.PriceCategoryCreatedOn = DateTime.UtcNow;

                    await _PriceCategoryDAL.SavePriceCategory(PriceCategoryDTO, LoginDTO);
                    return $"{SuccessResponse.SaveSuccessMessage} {PriceCategoryDTO.PriceCategoryId}";
                }
                else
                {
                    await _PriceCategoryDAL.UpdatePriceCategory(PriceCategoryDTO, LoginDTO);
                    return $"{SuccessResponse.UpdateSuccessMessage} {PriceCategoryDTO.PriceCategoryId}";
                }
            }
            catch (ValidationException vex)
            {
                throw new Exception(vex.Message);
            }
            catch (Exception)
            {
                if (autoNumberDTO != null && PriceCategoryDTO.PriceCategoryId > 0)
                    await _AutoNumber.RollbackAutoNumber("PRICECATEGORY", PriceCategoryDTO.PriceCategoryId, LoginDTO);

                throw;
            }
        }


        public async Task<string> DeletePriceCategory(int PriceCategoryId, LoginDTO LoginDTO)
        {
            try
            {
                return await _PriceCategoryDAL.DeletePriceCategory(PriceCategoryId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}