using AdminDAL.CustomCode.Company;
using AdminDAL.DTO.Company;
using GB5Shared.DTO.Framework.AutoNumber;
using GB5Shared.DTO.Framework.Criteria;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.GenerateAutoNumber;
using GB5Shared.ResponseStandard;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using GB5Shared.Resource.Response;
using GB5Shared.Validation;

namespace AdminBLL.Company
{
    public class CompanyBLL : ICompanyBLL
    {
        private readonly ICompanyDAL _CompanyDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;

        public CompanyBLL(ICompanyDAL CompanyDAL, AutoNumber AutoNumber, IValidation validation)
        {
            _CompanyDAL = CompanyDAL;
            _AutoNumber = AutoNumber;
            _Validation = validation;
        }

        public async Task<string> GetCompany(int CompanyId, LoginDTO LoginDTO)
        {
            try
            {
                return await _CompanyDAL.GetCompany(CompanyId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

        public async Task<string> GetSelectListCompany(CriteriaDTO criteriaDTO, LoginDTO loginDTO)
        {
            try
            {
                return await _CompanyDAL.GetSelectListCompany(criteriaDTO, loginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }
        public async Task<string> SaveCompany(CompanyDTO companyDTO, LoginDTO loginDTO)
        {
            if (companyDTO == null)
                throw new ArgumentNullException(nameof(companyDTO));

            AutoNumberDTO? autoNumberDTO = null;

            try
            {
                // Validations
                await _Validation.NotEmpty(companyDTO.CompanyCode, nameof(companyDTO.CompanyCode));
                await _Validation.NotEmpty(companyDTO.CompanyName, nameof(companyDTO.CompanyName));

                // Modified Information
                companyDTO.CompanyModifiedById = loginDTO.UserId;
                companyDTO.CompanyModifiedOn = DateTime.UtcNow;

                int count = 1;

                if (companyDTO.CompanyId == 0)
                {
                    // Generate Auto Number
                    autoNumberDTO = await _AutoNumber.GetAutoNumber(count, "COMPANY", loginDTO);
                    companyDTO.CompanyId = autoNumberDTO.StartNumber;

                    // Created Information
                    companyDTO.CompanyCreatedById = loginDTO.UserId;
                    companyDTO.CompanyCreatedOn = DateTime.UtcNow;

                    await _CompanyDAL.SaveCompany(companyDTO, loginDTO);
                    return $"{SuccessResponse.SaveSuccessMessage} {companyDTO.CompanyId}";
                }
                else
                {
                    await _CompanyDAL.UpdateCompany(companyDTO, loginDTO);
                    return $"{SuccessResponse.UpdateSuccessMessage} {companyDTO.CompanyId}";
                }
            }
            catch (ValidationException vex)
            {
                throw new Exception(vex.Message);
            }
            catch (Exception)
            {
                // Rollback autonumber if creation failed
                if (autoNumberDTO != null && companyDTO.CompanyId > 0)
                    await _AutoNumber.RollbackAutoNumber("COMPANY", companyDTO.CompanyId, loginDTO);

                throw;
            }
        }


        public async Task<Result<string>> DeleteCompany(int CompanyId, LoginDTO LoginDTO)
        {
            try
            {
                return await _CompanyDAL.DeleteCompany(CompanyId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

    }
}