using CRMDAL.DTO.Problem;
using CRMDAL.Query.Problem;
using GB5Shared.DTO.Framework.Criteria;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.QueryExecutor;
using Newtonsoft.Json;
using System;
using System.Threading.Tasks;
using static GB5Shared.GB5Constant.Constant;

namespace CRMDAL.CustomCode.Problem
{
    public class ProblemDAL : IProblemDAL
    {
        private readonly IQueryExecutor _QueryExecutor;

        public ProblemDAL(IQueryExecutor queryExecutor)
        {
            _QueryExecutor = queryExecutor;
        }

        public async Task<string> GetSelectListProblem(int FirstNumber, int MaxResult, CriteriaDTO CriteriaDTO, LoginDTO LoginDTO)
        {
            try
            {
                string SQL = string.Empty;

                switch (LoginDTO.DatabaseType)
                {
                    case DBType.SQL:
                        SQL = ProblemQB.GET_SELECTLIST_PROBLEM_SQL;
                        break;

                    case DBType.PostGre:
                        SQL = ProblemQB.GET_SELECTLIST_PROBLEM_PG;
                        break;

                    case DBType.Oracle:
                        SQL = ProblemQB.GET_SELECTLIST_PROBLEM_ORACLE;
                        break;

                    case DBType.MySQL:
                        SQL = ProblemQB.GET_SELECTLIST_PROBLEM_MYSQL;
                        break;

                    default:
                        throw new Exception("Unsupported database type");
                }

                var Parameters = new
                {
                    firstnumber = FirstNumber,
                    maxresult = MaxResult
                };

                var Result = await _QueryExecutor.QueryAsync<ProblemPicklistDTO>(LoginDTO, SQL, Parameters);

                string Json = JsonConvert.SerializeObject(Result);
                return Json;
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}