zszq-trs/YLErpDAL/BLL/Calculation/VolSurfaceInitParamsBuilder.cs

using YLErp.Abstract;
using YLErp.Models;
using YLErp.QdpModule;

namespace YLErp.BLL.Calculation
{
    /// <summary>
    /// VolSurfaceInitParams构建
    /// </summary>
    public struct VolSurfaceInitParamsBuilder
    {
        VolSurfaceInitParams initParams;

        public VolSurfaceInitParamsBuilder(string userId)
        {
            initParams = new VolSurfaceInitParams
            {
                userId = userId ?? string.Empty
            };
        }

        /// <summary>
        /// 设置valueDate
        /// </summary>
        public VolSurfaceInitParamsBuilder SetValueDate(DateTime date)
        {
            if (initParams == null)
            {
                initParams = new VolSurfaceInitParams();
            }
            initParams.valueDate = date.ToString("yyyy-MM-dd");
            return this;
        }

        /// <summary>
        /// 设置valueDate
        /// </summary>
        public VolSurfaceInitParamsBuilder SetValueDate(string valueDate)
        {
            if (initParams == null)
            {
                initParams = new VolSurfaceInitParams();
            }

            initParams.valueDate = valueDate;

            return this;
        }

        /// <summary>
        /// 设置QuotationDate,UnderlyingId,UnderlyingCode,UnderlyingName
        /// </summary>
        public VolSurfaceInitParamsBuilder SetUnderlying(underlying_manager udm)
        {
            if (initParams == null)
            {
                initParams = new VolSurfaceInitParams();
            }

            if (udm != null)
            {
                initParams.UnderlyingId = udm.id;
                initParams.UnderlyingCode = udm.UnderlyingCode;
                initParams.UnderlyingName = udm.UnderlyingName;
                if (udm.QuotationDate.HasValue && string.IsNullOrWhiteSpace(initParams.valueDate))
                {
                    initParams.valueDate = udm.QuotationDate.Value.ToString("yyyy-MM-dd");
                }
            }

            return this;
        }

        /// <summary>
        /// 设置UnderlyingId,UnderlyingCode,UnderlyingName
        /// </summary>
        public VolSurfaceInitParamsBuilder SetUnderlying(int UnderlyingId, string UnderlyingCode, string UnderlyingName)
        {
            if (initParams == null)
            {
                initParams = new VolSurfaceInitParams();
            }

            initParams.UnderlyingId = UnderlyingId;
            initParams.UnderlyingCode = UnderlyingCode;
            initParams.UnderlyingName = UnderlyingName;

            return this;
        }

        /// <summary>
        /// 设置 vols,volSurfaceMode,interpolation
        /// </summary>
        public VolSurfaceInitParamsBuilder SetVolatility(IVolatility vol, List<SingleVol> vols = null)
        {
            if (initParams == null)
            {
                initParams = new VolSurfaceInitParams();
            }

            if (vol != null)
            {
                initParams.vols = vols ?? vol.VolTable;
                initParams.volSurfaceMode = vol.VolSurfaceMode;
                initParams.interpolation = vol.InterpolationMethod;
            }
            else
            {
                initParams.vols = vols;
            }

            return this;
        }

        /// <summary>
        /// 构建实例
        /// </summary>
        public VolSurfaceInitParams Build()
        {
            if (initParams == null)
            {
                initParams = new VolSurfaceInitParams();
            }
            return initParams;
        }

        /// <summary>
        /// 设置 addVolRate,isAddVolPercent
        /// </summary>
        public VolSurfaceInitParams Build(double addVolRate, bool isAddVolPercent = true)
        {
            if (initParams == null)
            {
                initParams = new VolSurfaceInitParams();
            }

            initParams.addVolRate = addVolRate;
            initParams.isAddVolPercent = isAddVolPercent;
            return initParams;
        }

        /// <summary>
        /// 设置 volSurfaceNameKey,addVolRate,isAddVolPercent
        /// </summary>
        public VolSurfaceInitParams Build(string volSurfaceNameKey, double addVolRate = 0, bool isAddVolPercent = true)
        {
            if (initParams == null)
            {
                initParams = new VolSurfaceInitParams();
            }

            if (!string.IsNullOrEmpty(volSurfaceNameKey))
            {
                initParams.volSurfaceNameKey = QdpVolHelper.GetVolSurfaceName(volSurfaceNameKey);
            }

            initParams.addVolRate = addVolRate;
            initParams.isAddVolPercent = isAddVolPercent;
            return initParams;
        }

        /// <summary>
        /// 设置 volSurfaceNameKey,volSurfaceMode,vols
        /// </summary>
        public VolSurfaceInitParams Build(string volSurfaceMode, List<SingleVol> vols, string volSurfaceNameKey = null)
        {
            if (initParams == null)
            {
                initParams = new VolSurfaceInitParams();
            }

            initParams.vols = vols;
            initParams.volSurfaceMode = volSurfaceMode;

            if (!string.IsNullOrEmpty(volSurfaceNameKey))
            {
                initParams.volSurfaceNameKey = QdpVolHelper.GetVolSurfaceName(volSurfaceNameKey);
            }

            return initParams;
        }
    }
}