using System.ComponentModel.DataAnnotations;
using FrameworkDAL.CustomCode.EventSource;
using FrameworkDAL.DTO.Event;
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.EventSource
{
    public class EventSourceBLL : IEventSourceBLL
    {
        private readonly IEventSourceDAL _EventSourceDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;


        public EventSourceBLL(IEventSourceDAL EventSourceDAL, AutoNumber AutoNumber, IValidation Validation)
        {
            _EventSourceDAL = EventSourceDAL;
            _AutoNumber = AutoNumber;
            _Validation = Validation;
        }

        public async Task<string> GetSelectListEventSource(int FirstNumber, int MaxResult, CriteriaDTO CriteriaDTO, LoginDTO LoginDTO)
        {
            try
            {
                return await _EventSourceDAL.GetSelectListEventSource(FirstNumber, MaxResult, CriteriaDTO, LoginDTO);
            }
            catch (Exception ex)
            {
                throw new Exception("Error in GetSelectListEventSource", ex);
            }
        }

        public async Task<string> GetEventSource(int EventSourceId, LoginDTO LoginDTO)
        {
            try
            {
                return await _EventSourceDAL.GetEventSource(EventSourceId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

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

            try
            {
                await _Validation.NotEmpty(EventSourceDTO.EventSourceCode, nameof(EventSourceDTO.EventSourceCode));
                await _Validation.NotEmpty(EventSourceDTO.EventSourceName, nameof(EventSourceDTO.EventSourceName));
                EventSourceDTO.EventSourceModifiedById = LoginDTO.UserId;
                EventSourceDTO.EventSourceModifiedOn = DateTime.UtcNow;
                EventSourceDTO.EventSourceModifiedByName = LoginDTO.UserName;


                int initialId = EventSourceDTO.EventSourceId;
                int count = 1 + initialId;
                if (initialId == 0)
                {
                    AutoNumberDTO autoNumberDTO = await _AutoNumber.GetNumberAsync(count, "EVENTSOURCE", LoginDTO);
                    EventSourceDTO.EventSourceId = AutoNumberDTO.StartNumber;
                    EventSourceDTO.EventSourceCreatedById = LoginDTO.UserId;
                    EventSourceDTO.EventSourceCreatedOn = DateTime.UtcNow;
                    EventSourceDTO.EventSourceCreatedByName = LoginDTO.UserName;


                    await _EventSourceDAL.SaveEventSource(EventSourceDTO, LoginDTO);
                    return $"{SuccessResponse.SaveSuccessMessage} {EventSourceDTO.EventSourceId}";
                }
                else
                {
                    await _EventSourceDAL.UpdateEventSource(EventSourceDTO, LoginDTO);
                    return $"{SuccessResponse.UpdateSuccessMessage} {EventSourceDTO.EventSourceId}";
                }
            }
            catch (ValidationException vex)
            {
                throw new Exception(vex.Message);
            }
            catch (Exception)
            {
                if (AutoNumberDTO != null && EventSourceDTO.EventSourceId > 0)
                    await _AutoNumber.RollbackAutoNumber("EVENTSOURCE", EventSourceDTO.EventSourceId, LoginDTO);

                throw;
            }
        }

        public async Task<string> DeleteEventSource(int EventSourceId, LoginDTO LoginDTO)
        {
            try
            {
                return await _EventSourceDAL.DeleteEventSource(EventSourceId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}