namespace YLErp.Modules.CalculationModule
{
    /// <summary>
    /// 股票交易计算帮助类
    /// </summary>
    public class StockTradeCalcHelper
    {
        /// <summary>
        /// 股票印花税
        /// </summary>
        private static double GetStockTradeStampDuty(ExchangeTrade trade, StockCommissionConfig config)
        {
            if (trade.TradeType == "股票" && trade.Notional != 0.0)
            {
                if (config != null && config.StampDutyType != null && config.StampDutyType.Contains(CovertStockTradeSide(trade.TradeSide)))
                {
                    return Math.Max((config.StampDuty ?? 0.0) / 100 * (trade.TradeSinglePrice) * trade.Notional, config.MinStampDuty ?? 0.0);
                }
            }
            return 0;
        }

        /// <summary>
        /// 股票佣金
        /// </summary>
        private static double GetStockTradeCommission(ExchangeTrade trade, StockCommissionConfig config)
        {
            if (trade.TradeType == "股票" && trade.Notional != 0.0)
            {
                if (config != null && config.CommissionType != null && config.CommissionType.Contains(CovertStockTradeSide(trade.TradeSide)))
                {
                    return Math.Max((config.Commission ?? 0.0) / 100 * (trade.TradeSinglePrice) * trade.Notional, config.MinCommission ?? 0.0);
                }
            }
            return 0;
        }


        private static string CovertStockTradeSide(string tradeSide)
        {
            if ("买入".Equals(tradeSide) || "卖出".Equals(tradeSide))
            {
                return tradeSide;
            }
            if ("多头开仓".Equals(tradeSide) || "空头平仓".Equals(tradeSide))
            {
                return "买入";
            }
            return "卖出";
        }

        /// <summary>
        /// 股票交易费
        /// </summary>
        private static double GetStockTradeTransferFee(ExchangeTrade trade, StockCommissionConfig config, bool actualTrade = true)
        {
            //交易费只上交所收取
            var um = DataCacheProvider.GetUnderlyingDataSource().GetData(trade.UnderlyingId);
            if (trade.TradeType == "股票" && (um == null || !"SZ".Equals(um.MarketCode)) && actualTrade && trade.Notional != 0.0)
            {
                if (config != null && config.TransferFeeType != null && config.TransferFeeType.Contains(CovertStockTradeSide(trade.TradeSide)))
                {
                    var Fee = Math.Max((config.TransferFee ?? 0.0) / 100 * (trade.TradeSinglePrice) * trade.Notional, config.MinTransferFee ?? 0.0);
                    if (trade.Notional <= 1000)
                    {
                        return Math.Max(Fee, config.MinTransferFee ?? 0.0);
                    }
                    else
                    {
                        return Fee;
                    }
                }
            }
            return 0;
        }

        /// <summary>
        /// 股票对冲其他费用
        /// </summary>
        private static double GetStockTradeOtherExpenses(ExchangeTrade trade, StockCommissionConfig config)
        {
            if (trade.TradeType == "股票" && trade.Notional != 0.0)
            {
                if (config != null && config.OtherExpensesType != null && config.OtherExpensesType.Contains(CovertStockTradeSide(trade.TradeSide)))
                {
                    return Math.Min(Math.Max((config.OtherExpenses ?? 0.0) / 100 * (trade.TradeSinglePrice) * trade.Notional, config.MinOtherExpenses ?? 0.0), config.MaxOtherExpenses ?? 0.0);
                }
            }
            return 0;
        }

        /// <summary>
        /// 获取交易手续费
        /// </summary>
        public static double GetStockAllTradeExpenses(ExchangeTrade trade, StockCommissionConfig config, bool actualTrade = true)
        {
            return GetStockTradeStampDuty(trade, config) + GetStockTradeCommission(trade, config) + GetStockTradeTransferFee(trade, config, actualTrade) + GetStockTradeOtherExpenses(trade, config);
        }
    }
}