using System;
using System.Collections.Generic;
using System.Text;

namespace Blog3000.Shared
{
    public static class RevisionExtensions
    {
         public static Revision Latest(this List<Revision> revs)
        {
            if (revs != null && revs.Count > 0)
            {
                var r = new List<Revision>(revs);
                r.Sort((a, b) => DateTime.Compare(a?.ChangedAt ?? DateTime.MinValue, b?.ChangedAt ?? DateTime.MinValue));
                return r[r.Count - 1];
            }
            return null;
        }
    }
}