namespace YLErp.Modules.ScenarioModule
{
    /// <summary>
    /// 情景分析标的参数
    /// </summary>
    public class ScenarioUnderlyingModel
    {
        /// <summary>
        /// [out]标的品种代码
        /// </summary>
        public string VarietyCode { get; set; }

        /// <summary>
        /// [in]标的代码
        /// </summary>
        public string UnderlyingCode { get; set; }

        /// <summary>
        /// [in]标的价格
        /// </summary>
        public double? UnderlyingPrice { get; set; }

        /// <summary>
        /// [in]分红率
        /// </summary>
        public double? DividenRate { get; set; }

        /// <summary>
        /// 分红率(初始传入)
        /// </summary>
        internal double? OriDividenRate { get; set; }

        /// <summary>
        /// [in]波动率
        /// </summary>
        public double? ConstVol { get; set; }

        /// <summary>
        /// 波动率(初始传入)
        /// </summary>
        internal double? OriVol { get; set; }

        double? _preVol, _preDividenRate;

        internal void SetVol(double value)
        {
            if (_preVol == null)
            {
                ConstVol = _preVol = value;
            }
            else if (!double.IsNaN(_preVol.Value) && Math.Abs(_preVol.Value - value) > 1e-6)
            {
                ConstVol = null;
                _preVol = double.NaN;
            }
        }

        internal void SetDividenRate(double value)
        {
            if (_preDividenRate == null)
            {
                DividenRate = _preDividenRate = value;
            }
            else if (!double.IsNaN(_preDividenRate.Value) && Math.Abs(_preDividenRate.Value - value) > 1e-6)
            {
                DividenRate = null;
                _preDividenRate = double.NaN;
            }
        }

        public override string ToString()
        {
            return $"{VarietyCode}--{UnderlyingCode}--price:{UnderlyingPrice}--div:{DividenRate}--vol:{ConstVol}";
        }

        public ScenarioUnderlyingModel Clone()
        {
            return (ScenarioUnderlyingModel)MemberwiseClone();
        }
    }
}