using System.ComponentModel.DataAnnotations.Schema;
using YLErp.Helpers;

namespace YLErp.DBModels
{
    [DataChange]
    [Table("trade_cashflow")]
    public class trade_cashflow : TradeExtendBase, IClonable<trade_cashflow>
    {

        private string _profitDayCount = "Act365";

        /// <summary>
        /// 利率
        /// </summary>
        [DataChange]
        public double ProfitRate { get; set; }

        /// <summary>
        /// 利率类型
        /// </summary>
        [DataChange]
        public CashFlowRateTypeEnum RateType { get; set; }

        /// <summary>
        /// 资金类型
        /// </summary>
        [DataChange]
        public CashflowDepositTypeEnum DepositType { get; set; }

        /// <summary>
        /// 预付比例
        /// </summary>
        public double PrepayRatio { get; set; }

        /// <summary>
        /// 计息日历规则
        /// Qdp.Pricing.Base.Enums.DayCount
        /// </summary>
        [DataChange]
        public string ProfitDayCount
        {
            get => _profitDayCount;
            set => _profitDayCount = value.TrimToNull() ?? "Act365";
        }

        public trade_cashflow Clone()
        {
            return (trade_cashflow)MemberwiseClone();
        }
    }

    public enum CashFlowRateTypeEnum
    {
        /// <summary>
        /// 年化利率：计算利息时，需要乘以计息周期的年化系数。
        /// </summary>
        年化利率 = 0,
        /// <summary>
        /// 实际利率：计算利息时，不需要乘以计息周期的年化系数。
        /// </summary>
        实际利率 = 1
    }

    public enum CashflowDepositTypeEnum
    {
        /// <summary>
        /// 买方支付交易费用，卖方按约定比例返还本金+按时间支付利息形式的资金收益
        /// </summary>
        资金收益 = 0,
        /// <summary>
        /// 买方支付资金成本，到期时卖方无需返还。如果提前结束交易，卖方返还剩余部分
        /// </summary>
        成本摊还 = 1,
    }
}