using Qdp.Pricing.Base.Enums;
using Qdp.Pricing.Library.Common.Interfaces;
using Qdp.Pricing.Library.Options.MonteCarlo;

namespace YLErp.BLL.Calculation.Engine
{
    public abstract class OptionEngineFactoryBase : IOptionEngineFactory
    {
        public abstract IEngine GetEngine(string engineName = null, OptionExercise exercise = OptionExercise.European, params object[] additionalParams);

        protected virtual IEngine CreateGenericMonteCarloEngine(params object[] parameters)
        {
            int parallelDegree = PS.Config.ErpElement.QdpParallelDegree, numberOfSimulation = 50000;
            bool useConstRate = true, useConstVol = true;
            if (parameters.Length > 0)
            {
                parallelDegree = (int)parameters[0];
            }
            if (parameters.Length > 1)
            {
                numberOfSimulation = (int)parameters[1];
            }
            if (parameters.Length > 2)
            {
                useConstRate = (bool)parameters[2];
            }
            if (parameters.Length > 3)
            {
                useConstVol = (bool)parameters[3];
            }

            return new GenericMonteCarloEngine(parallelDegree, numberOfSimulation, useConstRate: useConstRate, useConstVol: useConstVol);
        }
    }
}