Feat: notify on load

bot.go

@@ -199,6 +199,18 @@ func warmUpModel() {
 	if host != "localhost" && host != "127.0.0.1" && host != "::1" {
 		return
 	}
+	// Check if model is already loaded
+	loaded, err := isModelLoaded(chatBody.Model)
+	if err != nil {
+		logger.Debug("failed to check model status", "model", chatBody.Model, "error", err)
+		// Continue with warmup attempt anyway
+	}
+	if loaded {
+		if err := notifyUser("model already loaded", "Model "+chatBody.Model+" is already loaded."); err != nil {
+			logger.Debug("failed to notify user", "error", err)
+		}
+		return
+	}
 	go func() {
 		var data []byte
 		var err error
@@ -239,6 +251,8 @@ func warmUpModel() {
 			return
 		}
 		resp.Body.Close()
+		// Start monitoring for model load completion
+		monitorModelLoad(chatBody.Model)
 	}()
 }
 
@@ -329,6 +343,66 @@ func fetchLCPModels() ([]string, error) {
 	return localModels, nil
 }
 
+// fetchLCPModelsWithStatus returns the full LCPModels struct including status information.
+func fetchLCPModelsWithStatus() (*models.LCPModels, error) {
+	resp, err := http.Get(cfg.FetchModelNameAPI)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != 200 {
+		err := fmt.Errorf("failed to fetch llama.cpp models; status: %s", resp.Status)
+		return nil, err
+	}
+	data := &models.LCPModels{}
+	if err := json.NewDecoder(resp.Body).Decode(data); err != nil {
+		return nil, err
+	}
+	return data, nil
+}
+
+// isModelLoaded checks if the given model ID is currently loaded in llama.cpp server.
+func isModelLoaded(modelID string) (bool, error) {
+	models, err := fetchLCPModelsWithStatus()
+	if err != nil {
+		return false, err
+	}
+	for _, m := range models.Data {
+		if m.ID == modelID {
+			return m.Status.Value == "loaded", nil
+		}
+	}
+	return false, nil
+}
+
+// monitorModelLoad starts a goroutine that periodically checks if the specified model is loaded.
+func monitorModelLoad(modelID string) {
+	go func() {
+		timeout := time.After(2 * time.Minute) // max wait 2 minutes
+		ticker := time.NewTicker(2 * time.Second)
+		defer ticker.Stop()
+		for {
+			select {
+			case <-timeout:
+				logger.Debug("model load monitoring timeout", "model", modelID)
+				return
+			case <-ticker.C:
+				loaded, err := isModelLoaded(modelID)
+				if err != nil {
+					logger.Debug("failed to check model status", "model", modelID, "error", err)
+					continue
+				}
+				if loaded {
+					if err := notifyUser("model loaded", "Model "+modelID+" is now loaded and ready."); err != nil {
+						logger.Debug("failed to notify user", "error", err)
+					}
+					return
+				}
+			}
+		}
+	}()
+}
+
 // sendMsgToLLM expects streaming resp
 func sendMsgToLLM(body io.Reader) {
 	choseChunkParser()