using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using DMSDAL.CustomCode.Project;
using DMSDAL.DTO.Project;
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 DMSBLL.Project
{
    public class ProjectBLL : IProjectBLL
    {
        private readonly IProjectDAL _ProjectDAL;
        private readonly AutoNumber _AutoNumber;
        private readonly IValidation _Validation;

        public ProjectBLL(IProjectDAL ProjectDAL, AutoNumber AutoNumber, IValidation Validation)
        {
            _ProjectDAL = ProjectDAL;
            _AutoNumber = AutoNumber;
            _Validation = Validation;
        }

        public async Task<string> GetProject(int ProjectId, LoginDTO LoginDTO)
        {
            try
            {
                return await _ProjectDAL.GetProject(ProjectId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }



        public async Task<string> SaveProject(ProjectDTO ProjectDTO, LoginDTO LoginDTO)
        {
            if (ProjectDTO == null) throw new ArgumentNullException(nameof(ProjectDTO));
            AutoNumberDTO? autoNumberDTO = null;
            try
            {
                await _Validation.NotEmpty(ProjectDTO.SpaceProjectName, nameof(ProjectDTO.SpaceProjectName));
                ProjectDTO.ProjectModifiedById = LoginDTO.UserId;
                ProjectDTO.ProjectModifiedOn = DateTime.UtcNow;

                int initialId = ProjectDTO.SpaceProjectId;
                int count = 1 + initialId;
                if (initialId == 0)
                {
                    AutoNumberDTO AutoNumberDTO = await _AutoNumber.GetNumberAsync(count, "SPACEPROJECT", LoginDTO);
                    ProjectDTO.SpaceProjectId = AutoNumberDTO.StartNumber;
                    ProjectDTO.ProjectCreatedById = LoginDTO.UserId;
                    ProjectDTO.ProjectCreatedOn = DateTime.UtcNow;

                    await _ProjectDAL.SaveProject(ProjectDTO, LoginDTO);
                    return $"{SuccessResponse.SaveSuccessMessage} {ProjectDTO.SpaceProjectId}";
                }
                else
                {
                    await _ProjectDAL.UpdateProject(ProjectDTO, LoginDTO);
                    return $"{SuccessResponse.UpdateSuccessMessage} {ProjectDTO.SpaceProjectId}";
                }
            }
            catch (ValidationException vex)
            {
                throw new Exception(vex.Message);
            }
            catch (Exception)
            {
                if (autoNumberDTO != null && ProjectDTO.SpaceProjectId > 0)
                    await _AutoNumber.RollbackAutoNumber("SPACEPROJECT", ProjectDTO.SpaceProjectId, LoginDTO);

                throw;
            }
        }


        public async Task<string> DeleteProject(int ProjectId, LoginDTO LoginDTO)
        {
            try
            {
                return await _ProjectDAL.DeleteProject(ProjectId, LoginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

        //public async Task<string> GetSelectListProject(CriteriaDTO criteriaDTO, LoginDTO LoginDTO)
        //{
        //    try
        //    {
        //        return await _ProjectDAL.GetSelectListProject(criteriaDTO, LoginDTO);
        //    }
        //    catch (Exception)
        //    {
        //        throw;
        //    }
        //}
    }
}