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.Machine;
using MMDAL.DTO.Machine;
using MMDAL.DTO.MaterialGrade;

namespace MMBLL.Machine
{
    public class MachineBLL : IMachineBLL
    {
        private readonly IMachineDAL _MachineDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;

        public MachineBLL(IMachineDAL MachineDAL, AutoNumber AutoNumber, IValidation Validation)
        {
            _MachineDAL = MachineDAL;
            _AutoNumber = AutoNumber;
            _Validation = Validation;
        }

        public async Task<string> GetMachine(int MachineId, LoginDTO LoginDTO)
        {
            try
            {
                return await _MachineDAL.GetMachine(MachineId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

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

            try
            {
                await _Validation.NotEmpty(MachineDTO.MachineCode, nameof(MachineDTO.MachineCode));
                await _Validation.NotEmpty(MachineDTO.MachineName, nameof(MachineDTO.MachineName));
                MachineDTO.MachineModifiedById = LoginDTO.UserId;
                MachineDTO.MachineModifiedOn = DateTime.UtcNow;

                int initialId = MachineDTO.MachineId;
                int count = 1 + initialId;
                if (initialId == 0)
                {
                    AutoNumberDTO AutoNumberDTO = await _AutoNumber.GetNumberAsync(count, "MACHINE", LoginDTO);
                    MachineDTO.MachineId = AutoNumberDTO.StartNumber;
                    MachineDTO.MachineCreatedById = LoginDTO.UserId;
                    MachineDTO.MachineCreatedOn = DateTime.UtcNow;

                    await _MachineDAL.SaveMachine(MachineDTO, LoginDTO);
                    return $"{SuccessResponse.SaveSuccessCode} {MachineDTO.MachineCode}";
                }
                else
                {   
                    await _MachineDAL.UpdateMachine(MachineDTO, LoginDTO);
                    return $"{SuccessResponse.UpdateSuccessCode} {MachineDTO.MachineCode}";
                }
            }
            catch (ValidationException vex)
            {
                throw new Exception(vex.Message);
            }
            catch (Exception)
            {
                if (autoNumberDTO != null && MachineDTO.MachineId > 0)
                    await _AutoNumber.RollbackAutoNumber("MACHINE", MachineDTO.MachineId, LoginDTO);

                throw;
            }
        }

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

        public async Task<string> DeleteMachine(int MachineId, LoginDTO LoginDTO)
        {
            try
            {
                return await _MachineDAL.DeleteMachine(MachineId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

    }
}