using FrameworkDAL.DTO.Taxonomy;
using FrameworkDAL.Query.Taxonomy;
using GB5Shared.DTO.Framework.Criteria;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.QueryExecutor;
using GB5Shared.Resource.Response;
using GB5Shared.Validation;
using Newtonsoft.Json;

namespace FrameworkDAL.CustomCode.Taxonomy
{
    public class SubjectDAL : ISubjectDAL
    {
        private readonly IQueryExecutor _QueryExecutor;
        private readonly IValidation _Validation;

        public SubjectDAL(IQueryExecutor queryExecutor, IValidation validation)
        {
            _QueryExecutor = queryExecutor;
            _Validation = validation;
        }

        public async Task<string> GetSubject(int subjectId, LoginDTO loginDTO)
        {
            try
            {
                var parameters = new { SubjectId = subjectId, TenantId = loginDTO.ClientId };
                var result = await _QueryExecutor.QuerySingleAsync<SubjectDTO>(loginDTO, SubjectQB.GET_SUBJECT, parameters);
                return JsonConvert.SerializeObject(result);
            }
            catch (Exception) { throw; }
        }

        public async Task<string> GetSelectListSubject(int courseId, CriteriaDTO criteriaDTO, LoginDTO loginDTO)
        {
            try
            {
                var result = await _QueryExecutor.QueryWithCriteriaAsync<SubjectPicklistDTO>(
                    loginDTO,
                    SubjectQB.GET_SELECTLIST_SUBJECT,
                    new { TenantId = loginDTO.ClientId, CourseId = courseId },
                    criteriaDTO);
                return JsonConvert.SerializeObject(result);
            }
            catch (Exception) { throw; }
        }

        public async Task<int> SaveSubject(SubjectDTO dto, LoginDTO loginDTO)
        {
            try
            {
                return await _QueryExecutor.ExecuteAsync(loginDTO, SubjectQB.SAVE_SUBJECT, dto);
            }
            catch (Exception ex)
            {
                string error = await _Validation.HandleException(ex, ErrorResponse.SaveErrorMessage);
                throw new Exception(error);
            }
        }

        public async Task<int> UpdateSubject(SubjectDTO dto, LoginDTO loginDTO)
        {
            try
            {
                return await _QueryExecutor.ExecuteAsync(loginDTO, SubjectQB.UPDATE_SUBJECT, dto);
            }
            catch (Exception ex)
            {
                string error = await _Validation.HandleException(ex, ErrorResponse.UpdateErrorMessage);
                throw new Exception(error);
            }
        }

        public async Task<string> DeleteSubject(int subjectId, LoginDTO loginDTO)
        {
            try
            {
                var parameters = new { SubjectId = subjectId, TenantId = loginDTO.ClientId };
                int rowsAffected = await _QueryExecutor.ExecuteAsync(loginDTO, SubjectQB.DELETE_SUBJECT, parameters);
                return rowsAffected > 0 ? SuccessResponse.DeleteSuccessMessage : ErrorResponse.DeleteNotFoundMessage;
            }
            catch (Exception ex)
            {
                string error = await _Validation.HandleException(ex, ErrorResponse.DeleteErrorMessage);
                throw new Exception(error);
            }
        }
    }
}