using Edge.Core.IndustryStandardInterface.Pump;
using Microsoft.Data.SqlClient;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Data;

namespace EagleStar_Pump
{
    internal class SqlClientHelper
    {
        public static List<FdcTransaction> ReadTransactionData(PumpGroupConfiguration appConfig, ILogger logger, ref int fid)
        {
            string queryString = "select top 1 FID, FFuelTradeID, FFipID, FNozzleID, FPrice, FDueAmount, FDueVolume, FTotalAmount" +
                $", FTotalVolume, FTradeTime from TFuelTradeRecord where FNozzleID>0 and FID>{fid}";
            var dataList = new List<FdcTransaction>();
            try
            {
                using (var connection = new SqlConnection(appConfig.DatabaseConnectionString))
                {
                    if (connection.State != ConnectionState.Open)
                        connection.Open();

                    using (var command = new SqlCommand(queryString, connection))
                    {
                        using (var reader = command.ExecuteReader())
                        {
                            while (reader.Read())
                            {
                                var nz = new LogicalNozzle(int.Parse(reader["FFipID"].ToString()), 0, byte.Parse(reader["FNozzleID"].ToString()), null);
                                var trx = new FdcTransaction()
                                {
                                    SequenceNumberGeneratedOnPhysicalPump = int.Parse(reader["FFuelTradeID"].ToString()),
                                    Nozzle = nz,
                                    Price = (int)(decimal.Parse(reader["FPrice"].ToString()) * (decimal)Math.Pow(10, appConfig.PriceDecimalDigits)),
                                    Amount = (int)(decimal.Parse(reader["FDueAmount"].ToString()) * (decimal)Math.Pow(10, appConfig.AmountDecimalDigits)),
                                    Volumn = (int)(decimal.Parse(reader["FDueVolume"].ToString()) * (decimal)Math.Pow(10, appConfig.VolumeDecimalDigits)),
                                    AmountTotalizer = (int)(decimal.Parse(reader["FTotalAmount"].ToString()) * (decimal)Math.Pow(10, appConfig.AmountDecimalDigits)),
                                    VolumeTotalizer = (int)(decimal.Parse(reader["FTotalVolume"].ToString()) * (decimal)Math.Pow(10, appConfig.VolumeTotalizerDecimalDigits)),
                                    SaleEndTime = DateTime.Parse(reader["FTradeTime"].ToString()),
                                    Finished = true
                                };
                                dataList.Add(trx);
                                int flag = int.Parse(reader["FID"].ToString());
                                if (flag > fid)
                                    fid = flag;
                                logger.LogTrace($"FID {fid}, SequenceNumber {trx.SequenceNumberGeneratedOnPhysicalPump}, PumpId {trx.Nozzle.PumpId}, LogicalId {trx.Nozzle.LogicalId}" +
                                    $", Price {trx.Price}, Amount {trx.Amount}, Volumn {trx.Volumn}, AmountTotalizer {trx.AmountTotalizer}, VolumeTotalizer {trx.VolumeTotalizer}" +
                                    $", SaleEndTime {trx.SaleEndTime}");
                            }
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                logger.LogError($"ReadTransactionData error, exception detail: {ex}");
            }
            return dataList;
        }
    }
}