using Qdp.Pricing.Base.Implementations;

namespace YLErp.QdpModule
{
    /// <summary>
    /// 
    /// </summary>
    public static class QdpPricingRequest
    {
        public const PricingRequest PV_ONLY = PricingRequest.Pv;
        public const PricingRequest BASIC_PRICING = PricingRequest.Pv | PricingRequest.Delta;
        public const PricingRequest PRICE_GREEKS = PricingRequest.Pv | PricingRequest.Delta | PricingRequest.Gamma;
        public const PricingRequest BASIC_GREEKS = PricingRequest.Pv | PricingRequest.Delta | PricingRequest.Gamma | PricingRequest.Vega | PricingRequest.Theta | PricingRequest.Rho;

        /// <summary>
        /// 使用提供的pricingRequest和BASIC_GREEKS生成并集
        /// </summary>
        public static PricingRequest UnionBaiscGreeks(PricingRequest pricingRequest)
        {
            if (pricingRequest == BASIC_GREEKS)
            {
                return pricingRequest;
            }

            var pricingRequest2 = PricingRequest.None;
            var arr = new[] { PricingRequest.Pv, PricingRequest.Delta, PricingRequest.Gamma, PricingRequest.Vega, PricingRequest.Theta, PricingRequest.Rho };
            foreach (var a in arr)
            {
                if (a == (a & pricingRequest))
                {
                    pricingRequest2 |= a;
                }
            }
            return pricingRequest2;
        }
    }
}