using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using FrameworkDAL.CustomCode.LoadTemplate;
using FrameworkDAL.DTO.LoadTemplate;
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;

namespace FrameworkBLL.LoadTemplate
{
    public class LoadTemplateBLL : ILoadTemplateBLL
    {
        private readonly ILoadTemplateDAL _LoadTemplateDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;

        public LoadTemplateBLL(ILoadTemplateDAL LoadTemplateDAL, AutoNumber AutoNumber, IValidation validation)
        {
            _LoadTemplateDAL = LoadTemplateDAL;
            _AutoNumber = AutoNumber;
            _Validation = validation;
        }

        public async Task<LoadTemplateDTO> GetLoadTemplate(int LoadTemplateId, LoginDTO LoginDTO)
        {
            try
            {
                return await _LoadTemplateDAL.GetLoadTemplate(LoadTemplateId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

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

            try
            {
                await _Validation.NotEmpty(LoadTemplateDTO.LoadTemplateTemplateName, nameof(LoadTemplateDTO.LoadTemplateTemplateName));

                LoadTemplateDTO.LoadTemplateModifiedById = LoginDTO.UserId;
                LoadTemplateDTO.LoadTemplateModifiedOn = DateTime.UtcNow;

                int InitialId = LoadTemplateDTO.LoadTemplateId;
                int count = 1 + InitialId;
                if (InitialId == 0)
                {
                    AutoNumberDTO AutoNumberDTO = await _AutoNumber.GetNumberAsync(count, "LOADTEMPLATE", LoginDTO);
                    LoadTemplateDTO.LoadTemplateId = AutoNumberDTO.StartNumber;
                    LoadTemplateDTO.LoadTemplateCreatedById = LoginDTO.UserId;
                    LoadTemplateDTO.LoadTemplateCreatedOn = DateTime.UtcNow;

                    await _LoadTemplateDAL.SaveLoadTemplate(LoadTemplateDTO, LoginDTO);
                    return $"{SuccessResponse.SaveSuccessMessage} {LoadTemplateDTO.LoadTemplateId}";
                }
                else
                {
                    await _LoadTemplateDAL.UpdateLoadTemplate(LoadTemplateDTO, LoginDTO);
                    return $"{SuccessResponse.UpdateSuccessMessage} {LoadTemplateDTO.LoadTemplateId}";
                }
            }
            catch (ValidationException vex)
            {
                throw new Exception(vex.Message);
            }
            catch (Exception)
            {
                if (autoNumberDTO != null && LoadTemplateDTO.LoadTemplateId > 0)
                    await _AutoNumber.RollbackAutoNumber("LOADTEMPLATE", LoadTemplateDTO.LoadTemplateId, LoginDTO);

                throw;
            }
        }

        public async Task<string> DeleteLoadTemplate(int LoadTemplateId, LoginDTO LoginDTO)
        {
            try
            {
                return await _LoadTemplateDAL.DeleteLoadTemplate(LoadTemplateId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

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