using FMDAL.DTO.Meter;
using FMDAL.Query.Meter;
using GB5Shared.DTO.Framework.Criteria;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.QueryExecutor;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Data.Common;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using static GB5Shared.GB5Constant.Constant;

namespace FMDAL.CustomCode.Meter
{
    public class MeterDAL : IMeterDAL
    {
        private readonly IQueryExecutor _QueryExecutor;

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

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

                switch (LoginDTO.DatabaseType)
                {
                    case DBType.SQL:
                        SQL = MeterQB.GET_SELECTLIST_METER_SQL;
                        break;

                    case DBType.PostGre:
                        SQL = MeterQB.GET_SELECTLIST_METER_PG;
                        break;

                    case DBType.Oracle:
                        SQL = MeterQB.GET_SELECTLIST_METER_ORACLE;
                        break;

                    case DBType.MySQL:
                        SQL = MeterQB.GET_SELECTLIST_METER_MYSQL;
                        break;

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

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

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

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

        public async Task<MeterDTO?> GetMeter(int meterId, LoginDTO login, CancellationToken ct)
        {
            var items = await _QueryExecutor.QueryAsync<MeterDTO>(login, MeterQB.GET_METER,
                new { MeterId = meterId, TenantId = login.ClientId }, cancellationToken: ct).ConfigureAwait(false);
            return items.FirstOrDefault();
        }

        public async Task<int> SaveMeter(MeterDTO dto, LoginDTO login, DbTransaction tx, CancellationToken ct)
        {
            dto.TenantId = login.ClientId;
            dto.MeterCreatedOn = DateTime.UtcNow;
            dto.MeterCreatedById = login.UserId;
            dto.MeterModifiedOn = DateTime.UtcNow;
            dto.MeterModifiedById = login.UserId;
            await _QueryExecutor.ExecuteAsync(login, MeterQB.SAVE_METER, dto, tx, cancellationToken: ct).ConfigureAwait(false);
            return dto.MeterId;
        }

        public async Task UpdateMeter(MeterDTO dto, LoginDTO login, DbTransaction tx, CancellationToken ct)
        {
            dto.MeterModifiedOn = DateTime.UtcNow;
            dto.MeterModifiedById = login.UserId;
            await _QueryExecutor.ExecuteAsync(login, MeterQB.UPDATE_METER, dto, tx, cancellationToken: ct).ConfigureAwait(false);
        }

        public async Task DeleteMeter(int meterId, int modifiedById, LoginDTO login, DbTransaction tx, CancellationToken ct)
        {
            await _QueryExecutor.ExecuteAsync(login, MeterQB.DELETE_METER,
                new { MeterId = meterId, ModifiedById = modifiedById, ModifiedOn = DateTime.UtcNow, TenantId = login.ClientId },
                tx, cancellationToken: ct).ConfigureAwait(false);
        }
    }
}