using AnalyticsDAL.CustomCode.AnalysisField;
using AnalyticsDAL.DTO.Analysis;
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 System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AnalyticsBLL.AnalysisField
{
    public class AnalysisFieldBLL : IAnalysisFieldBLL
    {
        private readonly IAnalysisFieldDAL _dal;
        private readonly AutoNumber _autoNumber;
        private readonly IValidation _validation;

        public AnalysisFieldBLL(IAnalysisFieldDAL dal, AutoNumber autoNumber, IValidation validation)
        {
            _dal = dal;
            _autoNumber = autoNumber;
            _validation = validation;
        }
        public async Task<string> GetAnalysisFields(int AnalysisFieldsId, LoginDTO login, CancellationToken ct)
            => await _dal.GetAnalysisFields(AnalysisFieldsId, login, ct).ConfigureAwait(false);

        public async Task<string> SaveAnalysisFields(AnalysisFieldsDTO dto, LoginDTO login, CancellationToken ct)
        {
            if (dto == null) throw new ArgumentNullException(nameof(dto));

            AutoNumberDTO? autoNumberDTO = null;

            try
            {

                dto.AnalysisFieldsTenantId = login.ClientId;
                dto.AnalysisFieldsModifiedById = login.UserId;
                dto.AnalysisFieldsModifiedOn = DateTime.UtcNow;

                bool isNew = dto.AnalysisFieldsId == 0;   // ✅ decide BEFORE changing ID

                if (isNew)
                {
                    autoNumberDTO = await _autoNumber.GetNumberAsync(1, "MANALYSIS", login);

                    dto.AnalysisFieldsId = autoNumberDTO.StartNumber; // ID changes here
                    dto.AnalysisFieldsCreatedById = login.UserId;
                    dto.AnalysisFieldsCreatedOn = DateTime.UtcNow;
                }

                // ✅ pass isNew to DAL
                await _dal.SaveAnalysisFields(dto, isNew, login, ct);

                return isNew
                    ? $"{SuccessResponse.SaveSuccessMessage} {dto.AnalysisFieldsId}"
                    : $"{SuccessResponse.UpdateSuccessMessage} {dto.AnalysisFieldsId}";
            }
            catch
            {
                if (autoNumberDTO != null && dto.AnalysisFieldsId > 0)
                {
                    await _autoNumber.RollbackAutoNumber("MANALYSIS", dto.AnalysisFieldsId, login);
                }

                throw;
            }
        }
        public async Task<string> GetSelectListAnalysisFields(int analysisId, CriteriaDTO criteriaDTO, LoginDTO login, CancellationToken ct)
                => await _dal.GetSelectListAnalysisFields(analysisId, criteriaDTO, login, ct);

        public async Task<string> DeleteAnalysisFields(int AnalysisFieldsId, LoginDTO loginDTO)
        {
            try
            {
                return await _dal.DeleteAnalysisFields(AnalysisFieldsId, loginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}