using System;
using System.ComponentModel.DataAnnotations;
using System.Threading.Tasks;
using FrameworkDAL.CustomCode.ECMRights;
using FrameworkDAL.DTO.ECMRights;
using GB5Shared.DTO.Framework.AutoNumber;
using GB5Shared.DTO.Framework.Criteria;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.GenerateAutoNumber;
using GB5Shared.Resource.GB5Solution;
using GB5Shared.Resource.Response;
using GB5Shared.Validation;

namespace FrameworkBLL.ECMRights
{
    public class ECMRightsBLL : IECMRightsBLL
    {
        private readonly IECMRightsDAL _EcmRightsDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;


        public ECMRightsBLL(IECMRightsDAL EcmRightsDAL, AutoNumber AutoNumber, IValidation Validation)
        {
            _EcmRightsDAL = EcmRightsDAL;
            _AutoNumber = AutoNumber;
            _Validation = Validation;

        }

        /// <summary>
        /// Retrieves a single ECMRights record by its unique identifier.
        /// </summary>
        public async Task<string> GetECMRights(int ECMRightsId, LoginDTO LoginDTO)
        {
            try
            {
                return await _EcmRightsDAL.GetECMRights(ECMRightsId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }
        /// <summary>
        /// Inserts a new ECMRights record or updates an existing one.
        /// Applies business rules such as auto-number assignment for new records.
        /// </summary>
        public async Task<string> SaveECMRights(ECMRightsDTO ECMRightsDTO, LoginDTO LoginDTO)
        {
            if (ECMRightsDTO == null) throw new ArgumentNullException(nameof(ECMRightsDTO));
            AutoNumberDTO? autoNumberDTO = null;
            try
            {
                ECMRightsDTO.ECMRightsModifiedById = LoginDTO.UserId;
                ECMRightsDTO.ECMRightsModifiedOn = DateTime.UtcNow;

                int initialId = ECMRightsDTO.ECMRightsId;
                int count = 1 + initialId;

                if (initialId == 0)
                {
                    AutoNumberDTO AutoNumberDTO = await _AutoNumber.GetNumberAsync(count, "ECMRights", LoginDTO);
                    ECMRightsDTO.ECMRightsId = AutoNumberDTO.StartNumber;
                    ECMRightsDTO.ECMRightsCreatedById = LoginDTO.UserId;
                    ECMRightsDTO.ECMRightsCreatedOn = DateTime.UtcNow;

                    await _EcmRightsDAL.SaveECMRights(ECMRightsDTO, LoginDTO);
                    return $"{SuccessResponse.SaveSuccessMessage} {ECMRightsDTO.ECMRightsId}";
                }
                else
                {
                    await _EcmRightsDAL.UpdateECMRights(ECMRightsDTO, LoginDTO);
                    return $"{SuccessResponse.UpdateSuccessMessage} {ECMRightsDTO.ECMRightsId}";
                }
            }
            catch (ValidationException vex)
            {
                throw new Exception(vex.Message);
            }
            catch (Exception)
            {
                if (autoNumberDTO != null && ECMRightsDTO.ECMRightsId > 0)
                    await _AutoNumber.RollbackAutoNumber("ECMRights", ECMRightsDTO.ECMRightsId, LoginDTO);

                throw;
            }
        }
        /// <summary>
        /// Retrieves a paginated list of ECMRights records based on specified filter criteria.
        /// Can optionally return the total count of records instead of the list.
        /// </summary>
        /// <param name="firstNumber">The starting index of records to fetch (for pagination).</param>
        /// <param name="maxResult">The maximum number of records to fetch.</param>
        /// <param name="criteriaDTO">Filter criteria for selecting ECMRights.</param>
        /// <param name="LoginDTO">The current user's login details.</param>
        /// <param name="isCount">If true, returns the total count of matching records instead of the list.</param>
        /// <returns>A JSON string representing either the list of ECMRights records or the total count.</returns>
        public async Task<string> GetSelectListECMRights(int firstNumber, int maxResult, CriteriaDTO criteriaDTO, LoginDTO LoginDTO, bool isCount = false)
        {
            try
            {
                return await _EcmRightsDAL.GetSelectListECMRights(firstNumber, maxResult, criteriaDTO, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

        /// <summary>
        /// Deletes an ECMRights record by its unique identifier.
        /// </summary>
        public async Task<string> DeleteECMRights(int ECMRightsId, LoginDTO LoginDTO)
        {
            try
            {
                return await _EcmRightsDAL.DeleteECMRights(ECMRightsId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}