Add Start and Position to User

Users/User.cs

@@ -3,25 +3,51 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using YamlDotNet.Serialization;
 
 namespace Akari.Provider.WaveshareUART.Users
 {
     public class User
     {
         public string Name { get; private set; }
+
         public string Token { get; private set; }
-        public ushort RangeStart { get; private set; }
+
+        public ushort Start { get; private set; }
+        public ushort Position { get; private set; }
+
+        [YamlIgnore()]
+        public int Count => Position - Start;
+        [YamlIgnore()]
+        public IEnumerable<int> ValidPositions => Enumerable.Range(Start, Count);
 
         public User()
         {
 
         }
 
-        public User(string name, string token, ushort rangeStart)
+        public User(string name, string token, ushort start)
         {
             Name = name;
             Token = token;
-            RangeStart = rangeStart;
+            Start = start;
+            Position = Start;
         }
+
+        public bool IncrementPosition()
+        {
+            if (Position - Start < UsersManager.RangeLength)
+            {
+                Position++;
+
+                return true;
+            }
+
+            return false;
+        }
+
+        public bool IsInRange(int position) => position >= Start && position < Position;
+
+        public override string ToString() => Name;
     }
 }