using System.Collections.Generic;
using System.ComponentModel;

using TSLab.Script;
using TSLab.Script.Handlers;
using TSLab.Script.Handlers.Options;

namespace GanovCubes
{
    #region CubeDescription
    [HandlerCategory("Ganov Cubes. MarketData")]
    [HelperName("LotSize", Language = "ru-RU")]
    [Description("Кубик выдает сведения о размере лота инструмента")]
    [HelperLink("http://forum.tslab.ru/ubb/ubbthreads.php?ubb=showflat&Number=87030&page=1", "Страница на форуме TSLab", "ru-ru")]

    [InputsCount(1)]
    [Input(0, TemplateTypes.SECURITY, Name = "Инструмент")]

    [OutputsCount(1)]
    [OutputType(TemplateTypes.DOUBLE)]
    #endregion

    public class LotSize : IStreamHandler, ISecurityInput0, IDoubleReturns, IContextUses
    {
        public IContext Context { get; set; }

        public IList<double> Execute(ISecurity sec)
        {
            var lotSize = sec.LotSize;
            var barsCount = Context.BarsCount;

            if (barsCount < 0) return Context.GetArray<double>(0);
            if (lotSize < 0) return Context.GetArray<double>(barsCount);

            return Context.GetValueTypeCollection(lotSize, barsCount);
        }
    }
}