using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using GB5Shared.DTO.Framework.Criteria;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.QueryExecutor;
using GB5Shared.Resource.Response;
using GB5Shared.Validation;
using MMDAL.DTO.GradeStandard;
using MMDAL.Query.GradeStandard;
using Newtonsoft.Json;

namespace MMDAL.CustomCode.GradeStandard
{
    public class GradeStandardDAL : IGradeStandardDAL
    {
        private readonly IQueryExecutor _QueryExecutor;
        private readonly IValidation _Validation;

        public GradeStandardDAL(IQueryExecutor IQueryExecutor, IValidation IValidation)
        {
            _QueryExecutor = IQueryExecutor;
            _Validation = IValidation;
        }

        public async Task<string> GetGradeStandard(int GradeStandardId, LoginDTO LoginDTO)
        {
            string Json = "";
            try
            {
                string sql = GradeStandardQB.GET_GRADESTANDARD;
                var parameters = new { gradestandardid = GradeStandardId };
                GradeStandardDTO GradeStandardDTOs = await _QueryExecutor.QuerySingleAsync<GradeStandardDTO>(LoginDTO, sql, parameters);
                Json = JsonConvert.SerializeObject(GradeStandardDTOs);
                return Json;
            }
            catch (Exception)
            {
                throw;
            }
            finally
            {
                Json = null;
            }
        }

        public async Task<int> SaveGradeStandard(GradeStandardDTO GradeStandardDTO, LoginDTO LoginDTO)
        {
            try
            {
                string Sql = GradeStandardQB.SAVE_GRADESTANDARD;
                return await _QueryExecutor.ExecuteIdentityAsync(LoginDTO, Sql, GradeStandardDTO);
            }
            catch (Exception ex)
            {
                string Error = await _Validation.HandleException(ex, $"{ErrorResponse.SaveErrorMessage}");
                throw new Exception(Error);
            }
        }

        public async Task<int> UpdateGradeStandard(GradeStandardDTO GradeStandardDTO, LoginDTO LoginDTO)
        {
            try
            {
                string Sql = GradeStandardQB.UPDATE_GRADESTANDARD;
                return await _QueryExecutor.ExecuteAsync(LoginDTO, Sql, GradeStandardDTO);
            }
            catch (Exception ex)
            {
                string Error = await _Validation.HandleException(ex, $"{ErrorResponse.UpdateErrorMessage}");
                throw new Exception(Error);
            }
        }
    }
}