using FrameworkDAL.CustomCode.ServiceRequestType;
using FrameworkDAL.DTO.GBPeriod;
using FrameworkDAL.DTO.ServiceRequestType;
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 Microsoft.Extensions.Logging;
using System;
using System.ComponentModel.DataAnnotations;
using System.Text.Json;
using System.Threading.Tasks;

namespace FrameworkBLL.ServiceRequestType
{
    public class ServiceRequestTypeBLL : IServiceRequestTypeBLL
    {
        private readonly IServiceRequestTypeDAL _ServiceRequestTypeDAL;
        private readonly IValidation _Validation;
        private readonly AutoNumber _AutoNumber;
        private readonly ILogger<ServiceRequestTypeBLL> logger;
        public ServiceRequestTypeBLL(IServiceRequestTypeDAL ServiceRequestTypeDAL, IValidation Validation, AutoNumber AutoNumber , ILogger<ServiceRequestTypeBLL> Logger)
        {
            _ServiceRequestTypeDAL = ServiceRequestTypeDAL;
            _Validation = Validation;
            _AutoNumber = AutoNumber;
            logger = Logger;
        }

        public async Task<string> GetServiceRequestType(int ServiceRequestTypeId, LoginDTO LoginDTO)
        {
            try
            {
                return await _ServiceRequestTypeDAL.GetServiceRequestType(ServiceRequestTypeId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }
        public async Task<string> SaveServiceRequestType(ServiceRequestTypeDTO ServiceRequestTypeDTO, LoginDTO LoginDTO)
        {
            if (ServiceRequestTypeDTO == null)
                throw new ArgumentNullException(nameof(ServiceRequestTypeDTO));

            //AutoNumberDTO? autoNumberDTO = null;

            try
            {
                logger.LogInformation(
                    "SaveServiceRequestType called with ServiceRequestTypeDTO: {@ServiceRequestTypeDTO}, LoginDTO: {@LoginDTO}",
                    ServiceRequestTypeDTO,
                    LoginDTO
                );
                await _Validation.NotEmpty(ServiceRequestTypeDTO.ServiceRequestTypeCode, nameof(ServiceRequestTypeDTO.ServiceRequestTypeCode));
                await _Validation.NotEmpty(ServiceRequestTypeDTO.ServiceRequestTypeName, nameof(ServiceRequestTypeDTO.ServiceRequestTypeName));

                // Template JSON handling
                //if (ServiceRequestTypeDTO.Template is JsonElement templateJson)
                //{
                //    ServiceRequestTypeDTO.Template = templateJson.ValueKind == JsonValueKind.Null
                //        ? null!
                //        : templateJson.ToString();
                //}

                ServiceRequestTypeDTO.ModifiedById = LoginDTO.UserId;
                ServiceRequestTypeDTO.ModifiedOn = DateTime.UtcNow;

                if (ServiceRequestTypeDTO.ServiceRequestTypeId == 0)
                {
                    // Auto Number Generate
                    //autoNumberDTO = await _AutoNumber.GetAutoNumber(count, "SERVICEREQUESTTYPE", LoginDTO);
                    //serviceRequestTypeDTO.ServiceRequestTypeId = autoNumberDTO.StartNumber;

                    ServiceRequestTypeDTO.CreatedById = LoginDTO.UserId;
                    ServiceRequestTypeDTO.CreatedOn = DateTime.UtcNow;

                    await _ServiceRequestTypeDAL.SaveServiceRequestType(ServiceRequestTypeDTO, LoginDTO);
                    return "Details have been saved successfully";
                }
                else
                {
                    await _ServiceRequestTypeDAL.UpdateServiceRequestType(ServiceRequestTypeDTO, LoginDTO);
                    return "Details have been updated successfully";
                }
            }
            catch (ValidationException vex)
            {
                throw new Exception(vex.Message);
            }
            catch (Exception)
            {
                //if (autoNumberDTO != null && serviceRequestTypeDTO.ServiceRequestTypeId > 0)
                    //await _AutoNumber.RollbackAutoNumber("ServiceRequestType", serviceRequestTypeDTO.ServiceRequestTypeId, LoginDTO);

                throw;
            }
        }

        public async Task<string> DeleteServiceRequestType(int ServiceRequestTypeId, LoginDTO LoginDTO)
        {
            try
            {
                return await _ServiceRequestTypeDAL.DeleteServiceRequestType(ServiceRequestTypeId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }
        public async Task<string> GetSelectListServiceRequestType(CriteriaDTO CriteriaDTO, LoginDTO LoginDTO)
        {
            try
            {
                return await _ServiceRequestTypeDAL.GetSelectionListServiceRequestType(CriteriaDTO, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}