/**
     * Detects the intent of a user message.
     *
     * @param userMessage the user's message
     * @return the detected intent with extracted keywords
     */
    IntentDetectionResult detectIntent(String userMessage);

    /**
     * Detects the intent of a user message with conversation history context.
     *
     * @param userMessage the user's message
     * @param history the conversation history for context

                        userMessage);
                return IntentDetectionResult.fallbackSearch(userMessage);
            }
            final IntentDetectionResult result = parseIntentResponse(response.getContent(), userMessage);

    /**
     * Detects the intent of a user message using the configured LLM client.
     *
     * @param userMessage the user's message
     * @return the detected intent with extracted keywords
     * @throws LlmException if LLM is not available
     */
    public IntentDetectionResult detectIntent(final String userMessage) {
        if (logger.isDebugEnabled()) {

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.mylasta.action;

import org.lastaflute.core.message.UserMessage;

/**
 * The keys for message.
 * @author FreeGen
 */
public class FessMessages extends FessLabels {

    /** The serial version UID for object serialization. (Default) */

     * @param userMessage the user's message
     * @param userId the user ID (can be null for anonymous users)
     * @return the chat response including session info and sources
     */
    public ChatResult chat(final String sessionId, final String userMessage, final String userId) {
        return chat(sessionId, userMessage, userId, Collections.emptyMap(), new String[0]);
    }

    /**

    }

    @Test
    public void test_isUser() {
        final ChatMessage userMessage = new ChatMessage(ChatMessage.ROLE_USER, "test");
        final ChatMessage assistantMessage = new ChatMessage(ChatMessage.ROLE_ASSISTANT, "test");
        final ChatMessage unknownMessage = new ChatMessage("unknown", "test");

        assertTrue(userMessage.isUser());
        assertFalse(assistantMessage.isUser());

            final LlmChatRequest request = new LlmChatRequest();
            request.addSystemMessage(buildIntentDetectionSystemPrompt());
            if (history != null) {
                addIntentHistory(request, history);
            }
            request.addUserMessage(wrapUserInput(userMessage));
            return request;
        }

    }

    /**
     * Creates a user message with the specified content.
     *
     * @param content the message content
     * @return a new user message
     */
    public static ChatMessage userMessage(final String content) {
        return new ChatMessage(ROLE_USER, content);
    }

    /**
     * Creates an assistant message with the specified content.
     *
     * @param content the message content

    @Test
    public void test_addMessage() {
        final ChatSession session = new ChatSession();
        final LocalDateTime beforeAdd = session.getLastAccessedAt();

        final ChatMessage message = ChatMessage.userMessage("Hello");
        session.addMessage(message);

        assertEquals(1, session.getMessages().size());
        assertEquals("Hello", session.getMessages().get(0).getContent());

    }

    /**
     * Adds a user message to this session.
     *
     * @param content the message content
     */
    public void addUserMessage(final String content) {
        addMessage(ChatMessage.userMessage(content));
    }

    /**
     * Adds an assistant message to this session.
     *
     * @param content the message content
     */
    public void addAssistantMessage(final String content) {