using System.ComponentModel.DataAnnotations.Schema;

namespace YLErp.DBModels
{
    [Table("trade_action")]
    public class TradeAction : DBModelBase
    {
        public int TradeId { get; set; }

        /// <summary>
        /// 执行日期
        /// </summary>
        public DateTime ValueDate { get; set; }

        /// <summary>
        /// 操作类型
        /// </summary>
        public TradeActionType ActionType { get; set; }

        /// <summary>
        /// 操作标识(增加扩展性)
        /// </summary>
        public int ActionFlag { get; set; }

        /// <summary>
        /// 操作备注
        /// </summary>
        public string ActionRemark { get; set; }

        /// <summary>
        /// 审核标识(0:无需审核,1:等待第一步审核,2...,100:审核通过)
        /// </summary>
        public byte CheckFlag { get; set; }

        /// <summary>
        /// 是否有效数据
        /// </summary>
        public bool IsValid { get; set; }

        /// <summary>
        /// 资金ID
        /// </summary>
        public int? CashId { get; set; }

        /// <summary>
        /// 回退ID
        /// </summary>
        public long? BackId { get; set; }

        /// <summary>
        /// 创建时间
        /// </summary>
        public DateTime CreateTime { get; set; }

        public string ActionData { get; set; }

        /// <summary>
        /// 操作人ID
        /// </summary>
        public int? OptId { get; set; }

        /// <summary>
        /// 操作人名称
        /// </summary>
        [NotMapped]
        public string OptName { get; set; }

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

        public override string ToString()
        {
            return $"{id}-{TradeId}--{ValueDate}--{ActionType}";
        }
    }

    /// <summary>
    /// 交易操作类型
    /// </summary>
    public enum TradeActionType
    {
        //---------开仓操作--------------

        /// <summary>
        /// 新增交易
        /// </summary>
        NewTrade = 1,

        /// <summary>
        /// 修改交易
        /// </summary>
        ModifyTrade = 2,

        /// <summary>
        /// 确认交易
        /// </summary>
        ConfirmTrade = 3,

        /// <summary>
        /// 删除交易
        /// </summary>
        DeleteTrade = 10,

        //---------交易回退--------------

        /// <summary>
        /// 回退交易
        /// </summary>
        BackTrade = 11,

        //---------要素变更--------------

        /// <summary>
        /// 除权除息
        /// </summary>
        ExDividend = 40,

        /// <summary>
        /// 累计期权换月
        /// </summary>
        AccumulatorChange = 50,

        //---------观察日结算--------------

        /// <summary>
        /// 期权敲入
        /// </summary>
        KnockIn = 101,

        /// <summary>
        /// 支付票息
        /// </summary>
        ObCoupon = 102,

        /// <summary>
        /// 现金支付
        /// </summary>
        ObCash = 103,

        /// <summary>
        /// 转远期
        /// </summary>
        ToForward = 110,

        //---------了结操作--------------

        /// <summary>
        /// 平仓
        /// </summary>
        Close = 201,

        /// <summary>
        /// 执行
        /// </summary>
        Exercise = 202,

        /// <summary>
        /// 敲出
        /// </summary>
        KnockOut = 210,

        /// <summary>
        /// 到期
        /// </summary>
        Expire = 220
    }

    public static class TradeActionHelper
    {
        /// <summary>
        /// 资金当期结算
        /// </summary>
        public const int Flag_CashAtHit = 0;

        /// <summary>
        /// 资金期末结算
        /// </summary>
        public const int Flag_CashAtEnd = 1;

        /// <summary>
        /// 全部了结
        /// </summary>
        public const int Flag_FullClosed = byte.MaxValue;

        /// <summary>
        /// 
        /// </summary>
        public const TradeActionType Close_Begin = TradeActionType.Close;

        /// <summary>
        /// 获取观察日结算产生的行为种类
        /// </summary>
        public static readonly IEnumerable<TradeActionType> ObActionTypes;

        static TradeActionHelper()
        {
            ObActionTypes = new List<TradeActionType> {
                TradeActionType.KnockIn, TradeActionType.KnockOut, TradeActionType.ObCash, TradeActionType.ObCoupon, TradeActionType.ToForward
            }.AsReadOnly();
        }
    }

    [NotMapped]
    public class TradeActionDto : TradeAction
    {

    }
}