using Qdp.Pricing.Base.Enums;
using Qdp.Pricing.Library.Common.Interfaces;
using Qdp.Pricing.Library.Options.MonteCarlo;
using Qdp.Pricing.Library.Options.Products.RangeAccrual.Engines.Analytical;

namespace YLErp.BLL.Calculation.Engine
{
    class RangeAccrualEngineFactory : OptionEngineFactoryBase
    {
        public static RangeAccrualEngineFactory Instance
        {
            get
            {
                if (_instance == null)
                {
                    _instance = new RangeAccrualEngineFactory();
                }
                return _instance;
            }
        }

        protected RangeAccrualEngineFactory() { }
        protected static RangeAccrualEngineFactory _instance;

        public override IEngine GetEngine(string engineName = null, OptionExercise exercise = OptionExercise.European, params object[] additionalParams)
        {
            if (engineName?.ToUpper() == "GBMMONTECARLOENGINE")
            {
                return new GbmMonteCarloEngine(100000, 1e-3, 1e-6, 1);
            }
            else
            {
                return new AnalyticalRangeAccrualEngine();
            }
        }
    }
}