}

    /**
     * Performs a chat request with RAG.
     *
     * @param sessionId the session ID (can be null for new sessions)
     * @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) {

    }

    /**
     * Executes a chat request with concurrency control via Semaphore.
     *
     * @param request the chat request
     * @return the chat response
     * @throws LlmException if too many concurrent requests or interrupted
     */

labels.login.placeholder_new_password=New Password
labels.login.placeholder_confirm_new_password=Confirm New Password
labels.login.update=Update

# Chat labels
labels.chat_title=AI Search Mode - Fess
labels.chat_new_chat=New Chat
labels.chat_input_placeholder=Ask a question...
labels.chat_thinking=Thinking...
labels.chat_error=An error occurred. Please try again.

labels.login.placeholder_new_password=New Password
labels.login.placeholder_confirm_new_password=Confirm New Password
labels.login.update=Update

# Chat labels
labels.chat_title=AI Search Mode - Fess
labels.chat_new_chat=New Chat
labels.chat_input_placeholder=Ask a question...
labels.chat_thinking=Thinking...
labels.chat_error=An error occurred. Please try again.

#                                                  RAG Chat
#                                                     ------

# Whether RAG chat feature is enabled.
rag.chat.enabled=false


# Chat generation settings.
rag.chat.context.max.documents=5

# Session settings.
rag.chat.session.timeout.minutes=30
rag.chat.session.max.size=10000
rag.chat.history.max.messages=30

        final List<LlmMessage> messages = request.getMessages();
        // system + user = 2 messages
        assertEquals(2, messages.size());
        assertEquals("system", messages.get(0).getRole());
        assertEquals("user", messages.get(1).getRole());
        assertTrue(messages.get(1).getContent().contains("What is Fess?"));

		<dependency>
			<groupId>org.apache.groovy</groupId>
			<artifactId>groovy</artifactId>
			<version>${groovy.version}</version>
		</dependency>

		<!-- markdown and html sanitization for RAG chat -->
		<dependency>
			<groupId>org.commonmark</groupId>
			<artifactId>commonmark</artifactId>
			<version>0.24.0</version>
		</dependency>
		<dependency>
			<groupId>org.commonmark</groupId>

				"application/x-bibtex-text-file",
				"application/x-bittorrent",
				"application/x-bplist",
				"application/x-bzip",
				"application/x-bzip2",
				"application/x-cdlink",
				"application/x-chat",
				"application/x-chess-pgn",
				"application/x-chrome-package",
				"application/x-compress",
				"application/x-corelpresentations",
				"application/x-cpio",
				"application/x-csh",

labels.login.placeholder_new_password=Neues Passwort
labels.login.placeholder_confirm_new_password=Neues Passwort bestätigen
labels.login.update=Aktualisieren

# Chat labels
labels.chat_title=KI-Suchmodus - Fess
labels.chat_new_chat=Neuer Chat
labels.chat_input_placeholder=Stellen Sie eine Frage...
labels.chat_thinking=Denkt nach...
labels.chat_error=Ein Fehler ist aufgetreten. Bitte versuchen Sie es erneut.

labels.login.placeholder_new_password=Nuova password
labels.login.placeholder_confirm_new_password=Conferma nuova password
labels.login.update=Aggiorna

# Chat labels
labels.chat_title=Modalità ricerca IA - Fess
labels.chat_new_chat=Nuova chat
labels.chat_input_placeholder=Fai una domanda...
labels.chat_thinking=Sto pensando...
labels.chat_error=Si è verificato un errore. Per favore riprova.