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.Defect;
using MMDAL.DTO.Defect;

namespace MMBLL.Defect
{
    public class DefectBLL : IDefectBLL
    {
        private readonly IDefectDAL _DefectDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;

        public DefectBLL(IDefectDAL DefectDAL, AutoNumber AutoNumber, IValidation Validation)
        {
            _DefectDAL = DefectDAL;
            _AutoNumber = AutoNumber;
            _Validation = Validation;
        }

        public async Task<string> GetDefect(int DefectId, LoginDTO LoginDTO)
        {
            try
            {
                return await _DefectDAL.GetDefect(DefectId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

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

            try
            {
                await _Validation.NotEmpty(DefectDTO.DefectCode, nameof(DefectDTO.DefectCode));
                await _Validation.NotEmpty(DefectDTO.DefectName, nameof(DefectDTO.DefectName));
                DefectDTO.DefectModifiedById = LoginDTO.UserId;
                DefectDTO.DefectModifiedOn = DateTime.UtcNow;

                int initialId = DefectDTO.DefectId;
                int count = 1 + initialId;
                if (initialId == 0)
                {
                    AutoNumberDTO AutoNumberDTO = await _AutoNumber.GetNumberAsync(count, "DEFECT", LoginDTO);
                    DefectDTO.DefectId = AutoNumberDTO.StartNumber;
                    DefectDTO.DefectCreatedById = LoginDTO.UserId;
                    DefectDTO.DefectCreatedOn = DateTime.UtcNow;

                    await _DefectDAL.SaveDefect(DefectDTO, LoginDTO);
                    return $"{SuccessResponse.SaveSuccessCode} {DefectDTO.DefectCode}";
                }
                else
                {
                    await _DefectDAL.UpdateDefect(DefectDTO, LoginDTO);
                    return $"{SuccessResponse.UpdateSuccessCode} {DefectDTO.DefectCode}";
                }
            }
            catch (ValidationException vex)
            {
                throw new Exception(vex.Message);
            }
            catch (Exception)
            {
                if (autoNumberDTO != null && DefectDTO.DefectId > 0)
                    await _AutoNumber.RollbackAutoNumber("DEFECT", DefectDTO.DefectId, LoginDTO);

                throw;
            }
        }

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

        public async Task<string> DeleteDefect(int DefectId, LoginDTO LoginDTO)
        {
            try
            {
                return await _DefectDAL.DeleteDefect(DefectId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

    }
}