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.MaterialAccount;
using MMDAL.DTO.MaterialAccount;
using MMDAL.DTO.MeasureUnit;

namespace MMBLL.MaterialAccount
{
    public class MaterialAccountBLL : IMaterialAccountBLL
    {
        private readonly IMaterialAccountDAL _MaterialAccountDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;


        public MaterialAccountBLL(IMaterialAccountDAL MaterialAccountDAL, AutoNumber AutoNumber, IValidation Validation)
        {
            _MaterialAccountDAL = MaterialAccountDAL;
            _AutoNumber = AutoNumber;
            _Validation = Validation;
        }
        public async Task<string> GetMaterialAccount(int MaterialAccountId, LoginDTO LoginDTO)
        {
            try
            {
                return await _MaterialAccountDAL.GetMaterialAccount(MaterialAccountId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }
        public async Task<string> GetSelectListMaterialAccount(CriteriaDTO criteriaDTO, LoginDTO loginDTO)
        {
            try
            {
                return await _MaterialAccountDAL.GetSelectListMaterialAccount(criteriaDTO, loginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

        public async Task<string> SaveMaterialAccount(MaterialAccountDTO MaterialAccountDTO, LoginDTO LoginDTO)
        {
            if (MaterialAccountDTO == null)
                throw new ArgumentNullException(nameof(MaterialAccountDTO));
            AutoNumberDTO? autoNumberDTO = null;
            try
            {
                await _Validation.NotEmpty(MaterialAccountDTO.MaterialAccountCode, nameof(MaterialAccountDTO.MaterialAccountCode));
                await _Validation.NotEmpty(MaterialAccountDTO.MaterialAccountName, nameof(MaterialAccountDTO.MaterialAccountName));
                MaterialAccountDTO.MaterialAccountModifiedById = LoginDTO.UserId;
                MaterialAccountDTO.MaterialAccountModifiedOn = DateTime.UtcNow;
                bool isNew = MaterialAccountDTO.MaterialAccountId == 0;
                if (isNew)
                {
                    int detailCount = MaterialAccountDTO.MaterialAccountDetailArray?.Count ?? 0;
                    int totalRequired = 1 + detailCount;
                    autoNumberDTO = await _AutoNumber.GetNumberAsync(totalRequired, "MATERIALACCOUNT", LoginDTO);
                    int nextId = autoNumberDTO.StartNumber;
                    MaterialAccountDTO.MaterialAccountId = nextId++;
                    MaterialAccountDTO.MaterialAccountCreatedById = LoginDTO.UserId;
                    MaterialAccountDTO.MaterialAccountCreatedOn = DateTime.UtcNow;
                    if (MaterialAccountDTO.MaterialAccountDetailArray?.Count > 0)
                    {
                        foreach (var detail in MaterialAccountDTO.MaterialAccountDetailArray)
                        {
                            detail.MaterialAccountDetailId = nextId++;
                            detail.MaterialAccountId = MaterialAccountDTO.MaterialAccountId;
                        }
                    }
                    await _MaterialAccountDAL.SaveMaterialAccount(MaterialAccountDTO, LoginDTO);
                    return $"{SuccessResponse.SaveSuccessCode} {MaterialAccountDTO.MaterialAccountCode}";
                }
                else
                {
                    await _MaterialAccountDAL.UpdateMaterialAccount(MaterialAccountDTO, LoginDTO);
                    return $"{SuccessResponse.UpdateSuccessCode} {MaterialAccountDTO.MaterialAccountCode}.";
                }
            }
            catch
            {
                if (autoNumberDTO != null && MaterialAccountDTO.MaterialAccountId > 0)
                {
                    await _AutoNumber.RollbackAutoNumber("MATERIALACCOUNT", autoNumberDTO.StartNumber, LoginDTO);
                }
                throw;
            }
        }




        public async Task<string> DeleteMaterialAccount(int MaterialAccountId, LoginDTO LoginDTO)
        {
            try
            {
                var detailsResult = await _MaterialAccountDAL.DeleteMaterialAccountDetail(MaterialAccountId, LoginDTO);

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

                var parentResult = await _MaterialAccountDAL.DeleteMaterialAccount(MaterialAccountId, LoginDTO);

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

                return $"{SuccessResponse.DeleteSuccessMessage}";
            }
            catch (Exception ex)
            {
                throw new Exception($"Error While Deleting MaterialAccount ID {MaterialAccountId}", ex);
            }
        }
    }
}