using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using FrameworkDAL.DTO.ServiceRequest;
using FrameworkDAL.Query.ServiceRequest;
using GB5Shared.DTO.Framework.Criteria;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.ResponseStandard;
using Newtonsoft.Json;
using GB5Shared.QueryExecutor;

namespace FrameworkDAL.CustomCode.ServiceRequest
{
    public class ServiceRequestDAL:IServiceRequestDAL
    {

        private readonly IQueryExecutor _QueryExecutor;

        public ServiceRequestDAL(IQueryExecutor IQueryExecutor)
        {
            _QueryExecutor = IQueryExecutor;
        }

        public async Task<string> GetServiceRequest(int ServiceRequestId, LoginDTO LoginDTO)
        {
            string Json = "";
            try
            {
                string sql = ServiceRequestQB.GET_SERVICEREQUEST;
                var parameters = new { servicerequestid = ServiceRequestId };
                IEnumerable<ServiceRequestDTO> ServiceRequestDTOs = await _QueryExecutor.QueryAsync<ServiceRequestDTO>(LoginDTO, sql, parameters);
                Json = JsonConvert.SerializeObject(ServiceRequestDTOs);
                return Json;
            }
            catch (Exception)
            {
                throw;
            }
            finally
            {
                Json = null;
            }
        }

        public async Task<string> GetSelectListServiceRequest(CriteriaDTO CriteriaDTO, LoginDTO LoginDTO)
        {
            try
            {
                string SQL = ServiceRequestQB.GET_SELECTLIST_SERVICEREQUEST;
                var Result = await _QueryExecutor.QueryAsync<ServiceRequestPicklistDTO>(LoginDTO, SQL, null!);
                string Json = JsonConvert.SerializeObject(Result);
                return Json;
            }
            catch (Exception)
            {
                throw;
            }
        }

        public async Task<int> SaveServiceRequest(ServiceRequestDTO ServiceRequestDTO, LoginDTO LoginDTO)
        {
            try
            {
                const string Sql = ServiceRequestQB.SAVE_SERVICEREQUEST;
                return await _QueryExecutor.ExecuteAsync(LoginDTO, Sql, ServiceRequestDTO);
            }
            catch (Exception ex)
            {
                throw new Exception("Error while saving ServiceRequest", ex);
            }
        }

        public async Task<int> UpdateServiceRequest(ServiceRequestDTO ServiceRequestDTO, LoginDTO LoginDTO)
        {
            try
            {
                const string sql = ServiceRequestQB.UPDATE_SERVICEREQUEST;
                return await _QueryExecutor.ExecuteAsync(LoginDTO, sql, ServiceRequestDTO);
            }
            catch (Exception ex)
            {
                throw new Exception("Error while updating ServiceRequest", ex);
            }
        }

        public async Task<Result<string>> DeleteServiceRequest(int ServiceRequestId, LoginDTO LoginDTO)
        {
            try
            {
                string sql = ServiceRequestQB.DELETE_SERVICEREQUEST;
                var parameter = new { servicerequestid = ServiceRequestId };
                var result = await _QueryExecutor.ExecuteAsync(LoginDTO, sql, parameter);

                if (result > 0)
                {
                    return Result<string>.Success("ServiceRequest deleted successfully.");
                }
                else
                {
                    return Result<string>.Failure("User not found or could not be deleted.");
                }
            }
            catch (Exception ex)
            {
                throw new Exception("Error while deleting ServiceRequest", ex);
            }
        }
    }
}