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.CycleClass;
using MMDAL.DTO.CycleClass;

namespace MMBLL.CycleClass
{
    public class CycleClassBLL : ICycleClassBLL
    {
        private readonly ICycleClassDAL _CycleClassDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;

        public CycleClassBLL(ICycleClassDAL CycleClassDAL, AutoNumber AutoNumber, IValidation validation)
        {
            _CycleClassDAL = CycleClassDAL;
            _AutoNumber = AutoNumber;
            _Validation = validation;
        }

        public async Task<CycleClassDTO> GetCycleClass(int CycleClassId, LoginDTO LoginDTO)
        {
            try
            {
                return await _CycleClassDAL.GetCycleClass(CycleClassId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

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

            try
            {
                await _Validation.NotEmpty(CycleClassDTO.CycleClassCycleClasso, nameof(CycleClassDTO.CycleClassCycleClasso));
                CycleClassDTO.CycleClassModifiedById = LoginDTO.UserId;
                CycleClassDTO.CycleClassModifiedOn = DateTime.UtcNow;

                int InitialId = CycleClassDTO.CycleClassId;
                int count = 1 + InitialId;
                if (InitialId == 0)
                {
                    AutoNumberDTO AutoNumberDTO = await _AutoNumber.GetNumberAsync(count, "CYCLECLASS", LoginDTO);
                    CycleClassDTO.CycleClassId = AutoNumberDTO.StartNumber;
                    CycleClassDTO.CycleClassCreatedById = LoginDTO.UserId;
                    CycleClassDTO.CycleClassCreatedOn = DateTime.UtcNow;

                    await _CycleClassDAL.SaveCycleClass(CycleClassDTO, LoginDTO);
                    return $"{SuccessResponse.SaveSuccessMessage} {CycleClassDTO.CycleClassId}";
                }
                else
                {
                    await _CycleClassDAL.UpdateCycleClass(CycleClassDTO, LoginDTO);
                    return $"{SuccessResponse.UpdateSuccessMessage} {CycleClassDTO.CycleClassId}";
                }
            }
            catch (ValidationException vex)
            {
                throw new Exception(vex.Message);
            }
            catch (Exception)
            {
                if (autoNumberDTO != null && CycleClassDTO.CycleClassId > 0)
                    await _AutoNumber.RollbackAutoNumber("CYCLECLASS", CycleClassDTO.CycleClassId, LoginDTO);

                throw;
            }
        }

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


        public async Task<string> DeleteCycleClass(int CycleClassId, LoginDTO LoginDTO)
        {
            try
            {
                return await _CycleClassDAL.DeleteCycleClass(CycleClassId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}