using YLErp.Abstract.DataProviders;
using YLErp.Models;

namespace YLErp.Modules.TradeRiskCalcModule.TaskRunner
{
    /// <summary>
    /// 用于价格试算的标的价格价格数据源
    /// </summary>
    class UnderlyingFixedPriceProvider : IPriceProvider
    {
        readonly IEnumerable<PriceModel> _underlyingPrices;

        public UnderlyingFixedPriceProvider(IEnumerable<PriceModel> underlyingPrices)
        {
            _underlyingPrices = underlyingPrices ?? throw new ArgumentNullException(nameof(underlyingPrices));
        }

        public double GetPrice(string instrumentId)
        {
            return TryGetPrice(instrumentId, out var price) ? price : 0;
        }

        public bool TryGetPrice(string instrumentId, out double price)
        {
            price = 0;

            if (string.IsNullOrEmpty(instrumentId))
            {
                return false;
            }

            var data = _underlyingPrices.FirstOrDefault(n => n?.InstrumentCode != null && n.InstrumentCode.Equals(instrumentId, StringComparison.OrdinalIgnoreCase));
            if (data != null)
            {
                price = data.Price;
                return true;
            }
            return false;
        }
    }
}