using FrameworkDAL.CustomCode.ProgramClass;
using GB5Shared.DTO.Framework.AutoNumber;
using GB5Shared.DTO.Framework.Criteria;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.GenerateAutoNumber;
using GB5Shared.Resource.Response;
using GB5Shared.ResponseStandard;
using GB5Shared.Validation;
using System;
using System.ComponentModel.DataAnnotations;
using System.Threading.Tasks;
using Unisoft.FrameworkDAL.DTO.Project;

namespace FrameworkBLL.ProgramClass
{
    public class ProgramClassBLL : IProgramClassBLL
    {
        private readonly IProgramClassDAL _ProgramClassDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;

        public ProgramClassBLL(IProgramClassDAL ProgramClassDAL, AutoNumber AutoNumber, IValidation Validation)
        {
            _ProgramClassDAL = ProgramClassDAL;
            _AutoNumber = AutoNumber;
            _Validation = Validation;
        }

        public async Task<string> GetProgramClass(int ProgramClassId, LoginDTO LoginDTO)
        {
            try
            {
                return await _ProgramClassDAL.GetProgramClass(ProgramClassId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

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

            try
            {
                await _Validation.NotEmpty(dto.ProgramClassCode, nameof(dto.ProgramClassCode));
                await _Validation.NotEmpty(dto.ProgramClassName, nameof(dto.ProgramClassName));
                dto.ProgramClassModifiedById = LoginDTO.UserId;
                dto.ProgramClassModifiedOn = DateTime.UtcNow;

                int count = 1;
                if (dto.ProgramClassId == 0)
                {
                    autoNumberDTO = await _AutoNumber.GetAutoNumber(count, "PROGRAMCLASS", LoginDTO);
                    dto.ProgramClassId = autoNumberDTO.StartNumber;
                    dto.ProgramClassCreatedById = LoginDTO.UserId;
                    dto.ProgramClassCreatedOn = DateTime.UtcNow;

                    await _ProgramClassDAL.SaveProgramClass(dto, LoginDTO);
                    return $"{SuccessResponse.SaveSuccessMessage} {dto.ProgramClassId}";
                }
                else
                {
                    await _ProgramClassDAL.UpdateProgramClass(dto, LoginDTO);
                    return $"{SuccessResponse.UpdateSuccessMessage} {dto.ProgramClassId}";
                }
            }
            catch (ValidationException vex)
            {
                throw new Exception(vex.Message);
            }
            catch (Exception)
            {
                if (autoNumberDTO != null && dto.ProgramClassId > 0)
                    await _AutoNumber.RollbackAutoNumber("PROGRAMCLASS", dto.ProgramClassId, LoginDTO);

                throw;
            }
        }

        public async Task<string> DeleteProgramClass(int ProgramClassId, LoginDTO LoginDTO)
        {
            try
            {
                return await _ProgramClassDAL.DeleteProgramClass(ProgramClassId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

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