using AdminDAL.CustomCode.FinanceBook;
using AdminDAL.DTO.FinanceBook;
using GB5Shared.DTO.Framework.AutoNumber;
using GB5Shared.Resource.GB5Solution;
using GB5Shared.DTO.Framework.Criteria;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.GenerateAutoNumber;
using GB5Shared.ResponseStandard;
using System;
using System.Threading.Tasks;

namespace AdminBLL.FinanceBook
{
    public class FinanceBookBLL : IFinanceBookBLL
    {
        private readonly IFinanceBookDAL _FinanceBookDAL;
        private readonly AutoNumber _AutoNumber;

        public FinanceBookBLL(IFinanceBookDAL FinanceBookDAL, AutoNumber AutoNumber)
        {
            _FinanceBookDAL = FinanceBookDAL;
            _AutoNumber = AutoNumber;
        }
        /// <summary>
        /// Retrieves a single FinanceBook record by its unique identifier.
        /// </summary>
        /// <param name="FinanceBookId">The ID of the FinanceBook to retrieve.</param>
        /// <param name="LoginDTO">The current user's login details.</param>
        /// <returns>A JSON string representing the FinanceBook details.</returns>
        public async Task<string> GetFinanceBook(int FinanceBookId, LoginDTO LoginDTO)
        {
            try
            {
                return await _FinanceBookDAL.GetFinanceBook(FinanceBookId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }
        /// <summary>
        /// Inserts a new FinanceBook record or updates an existing one.
        /// Applies business rules such as auto-number assignment for new records.
        /// </summary>
        /// <param name="FinanceBookDTO">The FinanceBook data to save or update.</param>
        /// <param name="LoginDTO">The current user's login details.</param>
        /// <returns>A message string indicating success and the FinanceBook ID.</returns>
        public async Task<string> SaveFinanceBook(FinanceBookDTO FinanceBookDTO, LoginDTO LoginDTO)
        {
            try
            {
                int initialId = FinanceBookDTO.FinanceBookId;
                int count = 1 + initialId;

                if (initialId == 0)
                {
                    AutoNumberDTO autoNumberDTO = await _AutoNumber.GetNumberAsync(count, "FinanceBook", LoginDTO);
                    FinanceBookDTO.FinanceBookId = autoNumberDTO.StartNumber;

                    await _FinanceBookDAL.SaveFinanceBook(FinanceBookDTO, LoginDTO);
                    return $"{AdminResource.SavedSuccessfully} FinanceBookId {FinanceBookDTO.FinanceBookId}";
                }
                else
                {
                    await _FinanceBookDAL.UpdateFinanceBook(FinanceBookDTO, LoginDTO);
                    return $"{AdminResource.UpdatedSuccessfully} FinanceBookId {FinanceBookDTO.FinanceBookId}";
                }
            }
            catch (Exception)
            {
                throw;
            }
        }
        /// <summary>
        /// Retrieves a list of FinanceBook records based on filter criteria.
        /// Typically used for populating dropdowns or selection lists in the UI.
        /// </summary>
        /// <param name="CriteriaDTO">Filter criteria for selecting FinanceBooks.</param>
        /// <param name="LoginDTO">The current user's login details.</param>
        /// <returns>A JSON string representing the list of FinanceBooks.</returns>
        public async Task<string> GetSelectListFinanceBook(CriteriaDTO CriteriaDTO, LoginDTO LoginDTO)
        {
            try
            {
                return await _FinanceBookDAL.GetSelectListFinanceBook(CriteriaDTO, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }
        /// <summary>
        /// Deletes a FinanceBook record by its unique identifier.
        /// </summary>
        /// <param name="FinanceBookId">The ID of the FinanceBook to delete.</param>
        /// <param name="LoginDTO">The current user's login details.</param>
        /// <returns>A message string indicating success or failure of the delete operation.</returns>
        public async Task<string> DeleteFinanceBook(int FinanceBookId, LoginDTO LoginDTO)
        {
            try
            {
                return await _FinanceBookDAL.DeleteFinanceBook(FinanceBookId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}