feat.airapp sdk

LanMountainDesktop.AirAppSdk/IAirAppMessageBus.cs

@@ -0,0 +1,31 @@
+namespace LanMountainDesktop.AirAppSdk;
+
+/// <summary>
+/// Message bus for inter-AirApp communication.
+/// </summary>
+public interface IAirAppMessageBus
+{
+    /// <summary>
+    /// Publish a message to a topic.
+    /// </summary>
+    /// <param name="topic">Message topic</param>
+    /// <param name="payload">Message payload</param>
+    void Publish(string topic, object? payload = null);
+
+    /// <summary>
+    /// Subscribe to a topic.
+    /// </summary>
+    /// <param name="topic">Message topic</param>
+    /// <param name="handler">Message handler</param>
+    /// <returns>Subscription token</returns>
+    IDisposable Subscribe(string topic, Action<object?> handler);
+
+    /// <summary>
+    /// Subscribe to a topic with typed payload.
+    /// </summary>
+    /// <typeparam name="T">Payload type</typeparam>
+    /// <param name="topic">Message topic</param>
+    /// <param name="handler">Typed message handler</param>
+    /// <returns>Subscription token</returns>
+    IDisposable Subscribe<T>(string topic, Action<T?> handler);
+}