using System.Data;

namespace YLErp.Modules.UnderlyingModule
{
    /// <summary>
    /// 场内期权数据服务
    /// </summary>
    public class ExchangeOptionDataService : YLBaseService
    {
        public ExchangeOptionDataService(OptUserInfo userInfo) : base(userInfo)
        {

        }

        public ExchangeOptionDataService(YLBaseService baseService) : base(baseService)
        {

        }

        /// <summary>
        /// 查询exchange_list_option
        /// </summary>
        public IPagedList<ExchangeListOption> SearchList(ExchangeOptionReq req)
        {
            var predicate = PredicateBuilder.True<ExchangeListOption>();

            if (!string.IsNullOrEmpty(req.ContractCode))
            {
                predicate = predicate.And(d => d.ContractCode.Contains(req.ContractCode));
            }

            if (!string.IsNullOrEmpty(req.UnderlyingCode))
            {
                predicate = predicate.And(d => d.UnderlyingCode.Contains(req.UnderlyingCode));
            }

            if (!string.IsNullOrEmpty(req.OptionType))
            {
                predicate = predicate.And(d => d.OptionType.Contains(req.OptionType));
            }

            if (!string.IsNullOrEmpty(req.ExerciseMode))
            {
                predicate = predicate.And(d => d.ExerciseMode.Contains(req.ExerciseMode));
            }

            if (req.MaturityDateStart != DateTime.MinValue)
            {
                predicate = predicate.And(d => d.MaturityDate >= req.MaturityDateStart);
            }

            if (req.MaturityDateEnd != DateTime.MinValue)
            {
                predicate = predicate.And(d => d.MaturityDate <= req.MaturityDateEnd);
            }

            if (!string.IsNullOrEmpty(req.MarketCode))
            {
                predicate = predicate.And(d => d.MarketCode == req.MarketCode);
            }

            var query = DbContext.exchange_list_option.Where(predicate);

            return query.ToPagedList(req);
        }

        public IEnumerable<ExchangeListOption> GetSelectItems(string underlyingCode)
        {
            return DbContext.exchange_list_option.Where(n => n.UnderlyingCode == underlyingCode).OrderByDescending(n => n.id).ToArray();
        }
    }

    public class ExchangeOptionReq : PagedQueryModel
    {
        /// <summary>
        /// 合约代码
        /// </summary> 
        public string ContractCode { get; set; }

        /// <summary>
        /// 标的代码
        /// </summary> 
        public string UnderlyingCode { get; set; }

        /// <summary>
        /// 看涨看跌
        /// </summary> 
        public string OptionType { get; set; }

        /// <summary>
        /// 行权方式
        /// </summary> 
        public string ExerciseMode { get; set; }

        public DateTime MaturityDateStart { get; set; }

        public DateTime MaturityDateEnd { get; set; }

        /// <summary>
        /// 市场代码
        /// </summary> 
        public string MarketCode { get; set; }
    }
}