using System;
using IwbZero.Expr;
using IwbZero.ToolCommon.StringModel;

namespace IwbZero.ExprFunctions.Functions
{
    /// <summary>
    /// 获取日期（某年最后一天）
    /// </summary>
    public class FunGetLFdy:IIwbFunction
    {
        private readonly FunGetFdy _fdy = new FunGetFdy();
        public string Invoke(ExprObject exprObj)
        {
            string pcStr = _fdy.Invoke(exprObj);
            DateTime dateTime = pcStr.StrToDt().AddYears(1);
            return (dateTime - new TimeSpan(1, 0, 0, 0)).DtToDateStr();
        }
    }
}