adds msgCode to MessageException

src/main/java/quanta/exception/MessageException.java

@@ -5,12 +5,26 @@
 
 // Exception class where we want the message to be displayed to the user
 public class MessageException extends RuntimeEx {
+    private String msgCode;
 
     public MessageException(String msg) {
         super(msg);
     }
 
+    public MessageException(String msg, String msgCode) {
+        super(msg);
+        this.msgCode = msgCode;
+    }
+
     public int getCode() {
         return HttpServletResponse.SC_SEE_OTHER;
     }
+
+    public String getMsgCode() {
+        return msgCode;
+    }
+
+    public void setMsgCode(String msgCode) {
+        this.msgCode = msgCode;
+    }
 }

src/main/java/quanta/exception/NoAgentException.java

@@ -3,7 +3,11 @@
 // Exception class where we want the message to be displayed to the user
 public class NoAgentException extends MessageException {
 
+    // NOTE: warning. This string is hardcoded into the frontend too for now.
+    static final String MSG_CODE = "NO_AGENT";
+
     public NoAgentException() {
-        super("No AI service found from parent nodes. Fix this by selecting a higher level node and using `Menu -> AI -> Configure Agent`");
+        super("No AI service found from parent nodes. Fix this by selecting a higher level node and using `Menu -> AI -> Configure Agent`",
+                MSG_CODE);
     }
 }

src/main/java/quanta/model/client/SystemConfig.java

@@ -1,8 +1,10 @@
 package quanta.model.client;
 
 public class SystemConfig {
-    // Holds the AI Config node id
+    // Holds the AI Config node id (todo-0: is this still used? and are ANY of the AI config fields
+    // still used?)
     private String agentNodeId;
+
     private String prompt; // ex: "you are a helpful assistant"
     private String foldersToInclude; // newline delimited list of file paths
     private String foldersToExclude; // newline delimited list of file paths

src/main/java/quanta/rest/response/base/ResponseBase.java

@@ -12,6 +12,7 @@ public class ResponseBase {
     private String message;
     private String stackTrace;
     private Integer code;
+    private String msgCode;
 
     // For diagnostic purposes we can put an info string about which replica on the docker swarm
     // was responsible for processing the request.
@@ -65,4 +66,12 @@ public String getStackTrace() {
     public void setStackTrace(String stackTrace) {
         this.stackTrace = stackTrace;
     }
+
+    public String getMsgCode() {
+        return msgCode;
+    }
+
+    public void setMsgCode(String msgCode) {
+        this.msgCode = msgCode;
+    }
 }

src/main/java/quanta/util/CallProcessor.java

@@ -10,6 +10,7 @@
 import jakarta.servlet.http.HttpSession;
 import quanta.AppServer;
 import quanta.config.ServiceBase;
+import quanta.exception.MessageException;
 import quanta.exception.base.RuntimeEx;
 import quanta.perf.PerfEvent;
 import quanta.rest.request.base.RequestBase;
@@ -127,6 +128,10 @@ private void setResponse(ResponseBase orb, int code, Exception e) {
             String stack = ExceptionUtils.getStackTrace(e);
             log.debug("ERROR: " + stack);
             orb.setStackTrace(stack);
+
+            if (e instanceof MessageException _e) {
+                orb.setMsgCode(_e.getMsgCode());
+            }
         }
 
         if (logResponses) {

src/main/resources/public/src/JavaIntf.ts

@@ -1049,6 +1049,7 @@ export interface ResponseBase {
     message: string;
     stackTrace: string;
     code: number;
+    msgCode: string;
     replica: string;
 }
 

src/main/resources/public/src/RpcUtil.ts

@@ -331,7 +331,13 @@ export class RpcUtil {
 
             if (res.code === C.RESPONSE_CODE_SEE_OTHER) {
                 console.error("Warning: " + postName + " RES: " + S.util.prettyPrint(res));
+                // if (res.msgCode === "NO_AGENT") {
+                //   NOTE: to resolve this we could create a 'getNode()' method on the server to get the user's
+                //   AccountNode, and then open ConfigurAIDlg with that node. (todo-1)
+                // }
+                // else {
                 S.util.showMessage(res.message, "Message");
+                // }
                 return;
             }