Changed design of monitors for better extensibility

2026-08-22 23:28:20 +00:00 · 2020-10-13 15:10:26 +02:00
parent 9a5acac2db
commit a12ddba765
9 changed files with 283 additions and 245 deletions
@@ -0,0 +1,43 @@
+using System;
+
+namespace MtApi.Monitors.Triggers
+{
+    /// <summary>
+    /// Raises the <see cref="Raised"/> event if a bar is closed and a new one started.
+    /// </summary>
+    public class NewBarTrigger : IMonitorTrigger
+    {
+        #region Fields
+        private volatile bool _isStarted;
+        private readonly MtApiClient _apiClient;
+        #endregion
+
+        public bool IsStarted => _isStarted;
+        public event EventHandler Raised;
+        public NewBarTrigger(MtApiClient apiClient)
+        {
+            _apiClient = apiClient;
+            _apiClient.OnLastTimeBar += _apiClient_OnLastTimeBar;
+        }
+
+        private void _apiClient_OnLastTimeBar(object sender, TimeBarArgs e)
+        {
+            if (_isStarted)
+                Raised?.Invoke(this, EventArgs.Empty);
+        }
+
+        public void Start() => SetIsStarted(true);
+        public void Stop() => SetIsStarted(false);
+        private void SetIsStarted(bool value)
+        {
+            if (value != _isStarted)
+            {
+                _isStarted = value;
+                if (value)
+                    _apiClient.OnLastTimeBar += _apiClient_OnLastTimeBar;
+                else
+                    _apiClient.OnLastTimeBar -= _apiClient_OnLastTimeBar;
+            }
+        }
+    }
+}