using System.Linq.Expressions;
using NejCommon.Utils;

namespace NejCommon.Models;
public class DateTimeFrame
{
    public DateTimeFrame(){

    }
    public DateTimeFrame(DateTime fromDate, DateTime toDate)
    {
        FromDate = fromDate;
        ToDate = toDate;
    }
    
    public DateTime FromDate { get; set; } = DateTime.MinValue;
    public DateTime ToDate { get; set; } = DateTime.MaxValue;

    public override string ToString()
    {
        var from = (FromDate == DateTime.MinValue) ? "" : ("-" + FromDate.ToShortDateString());
        var to = (ToDate == DateTime.MaxValue) ? "" : ("-" + ToDate.ToShortDateString());
        return $"{from}{to}";
    }

    public static Expression<Func<TType, bool>> Conditional<TType>(Expression<Func<TType, DateTime>> dateAcessor, DateTimeFrame frame)
    {
        return e => dateAcessor.Compile()(e) >= frame.FromDate && dateAcessor.Compile()(e) <= frame.ToDate;
    }

    public DateOnlyFrame ToDateOnlyFrame()
    {
        return new DateOnlyFrame(FromDate.ToDateOnly(), ToDate.ToDateOnly());
    }
}