Split text-specific validation

Signed-off-by: Mateus Devino <mdevino@ibm.com>

Author: mdevino

src/models.rs

@@ -964,10 +964,13 @@ impl ChatDetectionHttpRequest {
             return Err(ValidationError::Required("messages".into()));
         }
 
-        // validate messages
-        self.validate_messages()?;
+        Ok(())
+    }
 
-        // Validate detector params
+    /// Validates for the "/api/v1/text/chat" endpoint.
+    pub fn validate_for_text(&self) -> Result<(), ValidationError> {
+        self.validate()?;
+        self.validate_messages()?;
         validate_detector_params(&self.detectors)?;
 
         Ok(())

src/server.rs

@@ -441,7 +441,7 @@ async fn detect_chat(
     WithRejection(Json(request), _): WithRejection<Json<models::ChatDetectionHttpRequest>, Error>,
 ) -> Result<impl IntoResponse, Error> {
     let request_id = Uuid::new_v4();
-    request.validate()?;
+    request.validate_for_text()?;
     let headers = filter_headers(&state.orchestrator.config().passthrough_headers, headers);
     let task = ChatDetectionTask::new(request_id, request, headers);
     match state.orchestrator.handle_chat_detection(task).await {