saveToken();
        return doSearch(form);
    }

    /**
     * Navigates to the previous page of search results.
     *
     * @param form the list form containing current search criteria
     * @return HTML response with previous page results
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse prev(final ListForm form) {

     * @return the chat response
     */
    LlmChatResponse generateAnswer(String userMessage, List<Map<String, Object>> documents, List<LlmMessage> history);

    /**
     * Regenerates a search query when the previous query failed to produce relevant results.
     *
     * @param userMessage the user's original message
     * @param failedQuery the query that failed

            logger.info("Successfully deleted {} crawling info log(s) using bulk delete", sizeBeforeDeletion);
        } else {
            logger.info("No crawling info logs to delete (may have been deleted by previous test)");
        }
    }

        history.add(LlmMessage.user("Previous question"));
        final LlmChatRequest request = client.testBuildIntentRequest("Follow-up", history);
        final List<LlmMessage> messages = request.getMessages();
        // system + 1 history + user = 3 messages
        assertEquals(3, messages.size());
        assertEquals("Previous question", messages.get(1).getContent());

        }
        return getAvailableClient().generateAnswer(userMessage, documents, history);
    }

    /**
     * Regenerates a search query when the previous query failed.
     *
     * @param userMessage the user's original message
     * @param failedQuery the query that failed
     * @param failureReason the reason for failure

        protected int pageCount;
        /**
         * Indicates if there is a next page of search results.
         */
        protected boolean nextPage;
        /**
         * Indicates if there is a previous page of search results.
         */
        protected boolean prevPage;
        /**
         * The starting record number for the current page of search results.
         */

        final Map<String, Object> params1 = new HashMap<>();
        params1.put("x", 5);
        assertEquals(5, engine.evaluate(script, params1));

        // Second evaluation of the same cached script should not see previous state
        final Map<String, Object> params2 = new HashMap<>();
        params2.put("x", 3);
        assertEquals(3, engine.evaluate(script, params2));

        engine.close();
    }

    protected String[] supportedLanguages;

    /** A list of shutdown hooks to be executed on system shutdown. */
    protected List<Runnable> shutdownHookList = new ArrayList<>();

    /** The previous state of the cluster. */
    protected AtomicInteger previousClusterState = new AtomicInteger(0);

    /** The version of the Fess application. */
    protected String version;

    /** The major version number. */