using System.ComponentModel.DataAnnotations;
using GB5Shared.DTO.Framework.AutoNumber;
using GB5Shared.DTO.Framework.Criteria;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.GenerateAutoNumber;
using GB5Shared.Validation;
using MMDAL.CustomCode.NDTReport;
using MMDAL.DTO.NDTReport;

namespace MMBLL.NDTReport
{
    public class NDTReportBLL : INDTReportBLL
    {
        private readonly INDTReportDAL _NDTReportDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;

        public NDTReportBLL(INDTReportDAL NDTReportDAL, AutoNumber AutoNumber, IValidation Validation)
        {
            _NDTReportDAL = NDTReportDAL;
            _AutoNumber = AutoNumber;
            _Validation = Validation;
        }

        public async Task<NDTReportDTO> GetNDTReport(int NDTReportId, LoginDTO LoginDTO)
        {
            try
            {
                return await _NDTReportDAL.GetNDTReport(NDTReportId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

        public async Task<string> GetSelectListNDTReport(int FirstNumber, int MaxResult, CriteriaDTO CriteriaDTO, LoginDTO LoginDTO)
        {
            try
            {
                return await _NDTReportDAL.GetSelectListNDTReport(FirstNumber, MaxResult, CriteriaDTO, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

        public async Task<string> SaveNDTReport(NDTReportDTO dto, LoginDTO login)
        {
            if (dto == null)
                throw new ArgumentNullException(nameof(dto));

            try
            {
                // ---------------------------
                // VALIDATION
                // ---------------------------
                await _Validation.NotEmpty(dto.NDTReportReportNo, nameof(dto.NDTReportReportNo));
                await _Validation.NotEmpty(dto.NDTReportNdtMethodId.ToString(), nameof(dto.NDTReportNdtMethodId));
                await _Validation.NotEmpty(dto.NDTReportCustomerId.ToString(), nameof(dto.NDTReportCustomerId));

                // ---------------------------
                // SYSTEM FIELDS
                // ---------------------------
                dto.NDTReportModifiedById = login.UserId;
                dto.NDTReportModifiedOn = DateTime.UtcNow;

                // ONLY SET CREATED ON INSERT
                if (dto.NDTReportId == 0)
                {
                    dto.NDTReportCreatedById = login.UserId;
                    dto.NDTReportCreatedOn = DateTime.UtcNow;
                }

                // ---------------------------
                // CALL DAL (IMPORTANT)
                // ---------------------------
                int reportId = await _NDTReportDAL.SaveNDTReport(dto, login);

                // ---------------------------
                // UPDATE DTO (IMPORTANT)
                // ---------------------------
                dto.NDTReportId = reportId;

                return "Details Saved Successfully.";
            }
            catch (ValidationException vex)
            {
                throw new Exception(vex.Message);
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message);
            }
        }

        public async Task<string> DeleteNDTReport(int NDTReportId, LoginDTO LoginDTO)
        {
            try
            {
                // Delete children first to maintain referential integrity
                await _NDTReportDAL.DeleteNDTConditionParam(NDTReportId, LoginDTO);
                await _NDTReportDAL.DeleteNDTItemResult(NDTReportId, LoginDTO);
                return await _NDTReportDAL.DeleteNDTReport(NDTReportId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}