}

    /**
     * Returns the reasoning for the detected intent.
     *
     * @return the reasoning
     */
    public String getReasoning() {
        return reasoning;
    }

    /**
     * Creates a search intent result with a Fess query.
     *
     * @param query the Fess query string
     * @param reasoning the detection reasoning
     * @return the search intent result
     */

            final String reasoning = extractJsonString(response, "reasoning");

            if (intent == ChatIntent.SEARCH) {
                return IntentDetectionResult.search(query, reasoning);
            } else if (intent == ChatIntent.FAQ) {
                return IntentDetectionResult.faq(query, reasoning);
            } else if (intent == ChatIntent.SUMMARY) {

        final IntentDetectionResult result = IntentDetectionResult.search(query, "test reasoning");

        assertEquals(ChatIntent.SEARCH, result.getIntent());
        assertEquals(query, result.getQuery());
        assertNull(result.getDocumentUrl());
        assertEquals("test reasoning", result.getReasoning());
    }

    @Test
    public void test_search_withEmptyQuery() {

    @Test
    public void test_detectIntent_withHistory_usesStructuredMessages() {
        // Set up chat to return a valid JSON response
        client.setChatResponse("{\"intent\":\"search\",\"query\":\"Fess Docker\",\"reasoning\":\"Follow-up about Docker\"}");

        final List<LlmMessage> history = new ArrayList<>();
        history.add(LlmMessage.user("What is Fess?"));

            callback.onPhaseComplete(ChatPhaseCallback.PHASE_INTENT);

            if (logger.isDebugEnabled()) {
                logger.debug("[RAG] Phase {} completed. intent={}, query={}, reasoning={}, phaseElapsedTime={}ms",
                        ChatPhaseCallback.PHASE_INTENT, intentResult.getIntent(), intentResult.getQuery(), intentResult.getReasoning(),
                        System.currentTimeMillis() - phaseStartTime);