Added plugin events

src/HopFrame.Core/Services/Implementations/CallbackEmitter.cs

@@ -0,0 +1,39 @@
+using HopFrame.Core.Config;
+using HopFrame.Core.Callbacks;
+
+namespace HopFrame.Core.Services.Implementations;
+
+internal sealed class CallbackEmitter(IServiceProvider provider, HopFrameConfig config) : ICallbackEmitter {
+    
+    public Guid RegisterCallbackHandler(string @event, Func<object, IServiceProvider, Task> handler) {
+        var handlerStore = new HopCallbackHandler(@event, handler);
+        config.Handlers.Add(handlerStore);
+        return handlerStore.Id;
+    }
+    
+    public bool RemoveCallbackHandler(Guid id) {
+        var count = config.Handlers.RemoveAll(handler => handler.Id == id);
+        return count > 0;
+    }
+    
+    public async Task DispatchCallback(string @event, object argument = null!) {
+        var handlers = config.Handlers.Where(handler => handler.EventType == @event);
+        var tasks = new List<Task>();
+        
+        foreach (var handler in handlers) {
+            var task = handler.Handler.Invoke(argument, provider);
+            tasks.Add(task);
+        }
+
+        await Task.WhenAll(tasks);
+    }
+    
+    public void RemoveAllCallbackHandlers(string @event) {
+        config.Handlers.RemoveAll(handler => handler.EventType == @event);
+    }
+    
+    public void RemoveAllCallbackHandlers() {
+        config.Handlers.Clear();
+    }
+    
+}