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.Material;
using MMDAL.DTO.Material;

namespace MMBLL.Material
{
    public class MaterialBLL : IMaterialBLL
    {
        private readonly IMaterialDAL _MaterialDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;
        public MaterialBLL(IMaterialDAL IMaterialDAL, AutoNumber AutoNumber, IValidation validation)
        {
            _MaterialDAL = IMaterialDAL;
            _AutoNumber = AutoNumber;
            _Validation = validation;
        }

        public async Task<string> GetMaterial(int MaterialId, LoginDTO LoginDTO)
        {
            try
            {
                return await _MaterialDAL.GetMaterial(MaterialId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

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


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

            try
            {
                await _Validation.NotEmpty(MaterialDTO.MaterialCode, nameof(MaterialDTO.MaterialCode));
                await _Validation.NotEmpty(MaterialDTO.MaterialName, nameof(MaterialDTO.MaterialName));
                MaterialDTO.MaterialModifiedById = LoginDTO.UserId;
                MaterialDTO.MaterialModifiedOn = DateTime.UtcNow;

                int InitialId = MaterialDTO.MaterialId;
                int count = 1 + InitialId;
                if (InitialId == 0)
                {

                    AutoNumberDTO AutoNumberDTO = await _AutoNumber.GetNumberAsync(count, "MATERIAL", LoginDTO);
                    MaterialDTO.MaterialId = AutoNumberDTO.StartNumber;
                    MaterialDTO.MaterialCreatedById = LoginDTO.UserId;
                    MaterialDTO.MaterialCreatedOn = DateTime.UtcNow;

                    await _MaterialDAL.SaveMaterial(MaterialDTO, LoginDTO);
                    return $"{SuccessResponse.SaveSuccessName} {MaterialDTO.MaterialName}";
                }
                else
                {
                    await _MaterialDAL.UpdateMaterial(MaterialDTO, LoginDTO);
                    return $"{SuccessResponse.UpdateSuccessName} {MaterialDTO.MaterialName}";
                }
            }
            catch (ValidationException vex)
            {
                throw new Exception(vex.Message);
            }
            catch (Exception)
            {
                if (autoNumberDTO != null && MaterialDTO.MaterialId > 0)
                    await _AutoNumber.RollbackAutoNumber("MATERIAL", MaterialDTO.MaterialId, LoginDTO);

                throw;
            }
        }

        public async Task<string> DeleteMaterial(int MaterialId, LoginDTO LoginDTO)
        {
            try
            {
                return await _MaterialDAL.DeleteMaterial(MaterialId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}