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.Color;
using MMDAL.DTO.Color;

namespace MMBLL.Color
{
    public class ColorBLL : IColorBLL
    {
        private readonly IColorDAL _ColorDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;

        public ColorBLL(IColorDAL ColorDAL, AutoNumber AutoNumber, IValidation Validation)
        {
            _ColorDAL = ColorDAL;
            _AutoNumber = AutoNumber;
            _Validation = Validation;
        }

        public async Task<string> GetColor(int ColorId, LoginDTO LoginDTO)
        {
            try
            {
                return await _ColorDAL.GetColor(ColorId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }



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

            try
            {
                await _Validation.NotEmpty(ColorDTO.ColorCode, nameof(ColorDTO.ColorCode));
                await _Validation.NotEmpty(ColorDTO.ColorName, nameof(ColorDTO.ColorName));
                ColorDTO.ColorModifiedById = LoginDTO.UserId;
                ColorDTO.ColorModifiedOn = DateTime.UtcNow;

                int count = 1;
                if (ColorDTO.ColorId == 0)
                {
                    autoNumberDTO = await _AutoNumber.GetAutoNumber(count, "COLOR", LoginDTO);
                    ColorDTO.ColorId = autoNumberDTO.StartNumber;
                    ColorDTO.ColorCreatedById = LoginDTO.UserId;
                    ColorDTO.ColorCreatedOn = DateTime.UtcNow;

                    await _ColorDAL.SaveColor(ColorDTO, LoginDTO);
                    return $"{SuccessResponse.SaveSuccessMessage} {ColorDTO.ColorId}";
                }
                else
                {
                    await _ColorDAL.UpdateColor(ColorDTO, LoginDTO);
                    return $"{SuccessResponse.UpdateSuccessMessage} {ColorDTO.ColorId}";
                }
            }
            catch (ValidationException vex)
            {
                throw new Exception(vex.Message);
            }
            catch (Exception)
            {
                if (autoNumberDTO != null && ColorDTO.ColorId > 0)
                    await _AutoNumber.RollbackAutoNumber("COLOR", ColorDTO.ColorId, LoginDTO);

                throw;
            }
        }


        public async Task<string> DeleteColor(int ColorId, LoginDTO LoginDTO)
        {
            try
            {
                return await _ColorDAL.DeleteColor(ColorId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

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