New version merge

lib/averages/Sma.cs

@@ -0,0 +1,60 @@
+namespace QuanTAlib;
+
+public class Sma : AbstractBase
+{
+    // inherited _index
+    // inherited _value
+    public readonly int Period;
+    private CircularBuffer _buffer;
+
+    public Sma(int period) : base()
+    {
+        if (period < 1)
+        {
+            throw new ArgumentOutOfRangeException(nameof(period), "Period must be greater than or equal to 1.");
+        }
+        Period = period;
+        WarmupPeriod = period;
+        _buffer = new CircularBuffer(period);
+        Name = "Sma";
+        WarmupPeriod = period;
+        Init();
+    }
+
+    public Sma(object source, int period) : this(period: period)
+    {
+        var pubEvent = source.GetType().GetEvent("Pub");
+        pubEvent?.AddEventHandler(source, new ValueSignal(Sub));
+    }
+    //inhereted public void Sub(object source, in ValueEventArgs args)
+
+    public override void Init()
+    {
+        //_buffer.Clear();
+        base.Init();
+    }
+
+    protected override void ManageState(bool isNew)
+    {
+        if (isNew)
+        {
+            _lastValidValue = Input.Value;
+            _index++;
+        }
+    }
+
+    /// <summary>
+    /// Core SMA calculation - using _buffer.Average
+    /// </summary>
+
+    protected override double Calculation()
+    {
+        double result;
+        ManageState(IsNew);
+        _buffer.Add(Input.Value, Input.IsNew);
+        result = _buffer.Average();
+
+        IsHot = _index >= WarmupPeriod;
+        return result;
+    }
+}