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

namespace IwbZero.ExprFunctions.Functions
{
    /// <summary>
    /// 获取日期(周几)
    /// </summary>
    public class FunGetWeekDay:IIwbFunction
    {
        public string Invoke(ExprObject exprObj)
        {
            var dayOfWeek = DateTime.Now.DayOfWeek;
            if (exprObj.ChildCount > 0)
            {
                dayOfWeek = exprObj.GetChild(0).Expr.StrToDt().DayOfWeek;
            }
            return dayOfWeek.ToString();
        }
    }
}