using System;
using System.Collections.Generic;
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.MRPPartyType;
using MMDAL.DTO.MRPPartyType;

namespace MMBLL.MRPPartyType
{
    public class MRPPartyTypeBLL : IMRPPartyTypeBLL
    {
        private readonly IMRPPartyTypeDAL _MRPPartyTypeDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;


        public MRPPartyTypeBLL(IMRPPartyTypeDAL MRPPartyTypeDAL, AutoNumber AutoNumber, IValidation Validation)
        {
            _MRPPartyTypeDAL = MRPPartyTypeDAL;
            _AutoNumber = AutoNumber;
            _Validation = Validation;
        }

        public async Task<string> GetMRPPartyType(int MRPPartyTypeId, LoginDTO LoginDTO)
        {
            try
            {
                return await _MRPPartyTypeDAL.GetMRPPartyType(MRPPartyTypeId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

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

        public async Task<string> SaveMRPPartyType(MRPPartyTypeDTO MRPPartyTypeDTO, LoginDTO LoginDTO)
        {
            if (MRPPartyTypeDTO == null)
                throw new ArgumentNullException(nameof(MRPPartyTypeDTO));
            AutoNumberDTO? autoNumberDTO = null;
            try
            {
                await _Validation.NotEmpty(MRPPartyTypeDTO.MRPPartyTypeCode, nameof(MRPPartyTypeDTO.MRPPartyTypeCode));
                await _Validation.NotEmpty(MRPPartyTypeDTO.MRPPartyTypeName, nameof(MRPPartyTypeDTO.MRPPartyTypeName));
                MRPPartyTypeDTO.MRPPartyTypeModifiedById = LoginDTO.UserId;
                MRPPartyTypeDTO.MRPPartyTypeModifiedOn = DateTime.UtcNow;
                bool isNew = MRPPartyTypeDTO.MRPPartyTypeId == 0;
                if (isNew)
                {
                    int detailCount = MRPPartyTypeDTO.MRPPartyTypeDetailArray?.Count ?? 0;
                    int totalRequired = 1 + detailCount;
                    autoNumberDTO = await _AutoNumber.GetNumberAsync(totalRequired, "MRPPARTYTYPE", LoginDTO);
                    int nextId = autoNumberDTO.StartNumber;
                    MRPPartyTypeDTO.MRPPartyTypeId = nextId++;
                    MRPPartyTypeDTO.MRPPartyTypeCreatedById = LoginDTO.UserId;
                    MRPPartyTypeDTO.MRPPartyTypeCreatedOn = DateTime.UtcNow;
                    if (MRPPartyTypeDTO.MRPPartyTypeDetailArray?.Count > 0)
                    {
                        foreach (var detail in MRPPartyTypeDTO.MRPPartyTypeDetailArray)
                        {
                            detail.MRPPartyTypeDetailId = nextId++;
                            detail.MRPPartyTypeId = MRPPartyTypeDTO.MRPPartyTypeId;
                        }
                    }
                    await _MRPPartyTypeDAL.SaveMRPPartyType(MRPPartyTypeDTO, LoginDTO);
                    return $"{SuccessResponse.SaveSuccessMessage} {MRPPartyTypeDTO.MRPPartyTypeId}";
                }
                else
                {
                    await _MRPPartyTypeDAL.UpdateMRPPartyType(MRPPartyTypeDTO, LoginDTO);
                    return $"{SuccessResponse.UpdateSuccessMessage} {MRPPartyTypeDTO.MRPPartyTypeId}";
                }
            }
            catch
            {
                if (autoNumberDTO != null && MRPPartyTypeDTO.MRPPartyTypeId > 0)
                {
                    await _AutoNumber.RollbackAutoNumber("MRPPARTYTYPE", autoNumberDTO.StartNumber, LoginDTO);
                }
                throw;
            }
        }




        public async Task<string> DeleteMRPPartyType(int MRPPartyTypeId, LoginDTO LoginDTO)
        {
            try
            {
                var detailsResult = await _MRPPartyTypeDAL.DeleteMRPPartyTypeDetail(MRPPartyTypeId, LoginDTO);

                if (detailsResult <= 0)
                    return $"{ErrorResponse.DeleteNotFoundMessage}";

                var parentResult = await _MRPPartyTypeDAL.DeleteMRPPartyType(MRPPartyTypeId, LoginDTO);

                if (parentResult <= 0)
                    return $"{ErrorResponse.DeleteNotFoundMessage}";

                return $"{SuccessResponse.DeleteSuccessMessage}";
            }
            catch (Exception ex)
            {
                string Error = await _Validation.HandleException(ex, $"{ErrorResponse.DeleteErrorMessage}");
                throw new Exception(Error);
            }
        }
    }
}