pedidos-express/public/js/service/chat.js

async function initializeService() {
  try {
    const response = await fetch("/api/chat/init-chat");
    if (!response.ok) {
      const errorData = await response.json().catch(() => ({ message: "Error desconocido al inicializar." }));
      throw new Error(errorData.message || `Error del servidor: ${response.status}`);
    }
    const data = await response.json();
    const token = data.chatToken;
    if (!token) {
      throw new Error("No se pudo obtener el token de chat.");
    }
    return [true, token];
  } catch (error) {
    console.error("Error al inicializar el chat:", error);
  }
}
async function sendMessage(message, messageList, userName) {
  if (!chatToken) { 
    return "not_init";
    return;
  }
  messageList.push({ role: "user", content: message });
  const cuerpo = { messages: messageList, user: userName }
  const response = await fetch("/api/chat/completions", {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      "X-App-Token": chatToken
    },
    body: JSON.stringify(cuerpo)
  });
  if (!response.ok) {
    const errorData = await response.json().catch(() => ({ message: "Respuesta no válida del servidor." }));
    throw new Error(errorData.message || `Error del servidor: ${response.status}`);
  }
  const data = await response.json();
  const assistantResponse = data.response;
  if (assistantResponse) {
    messageList.push({ role: "assistant", content: assistantResponse });
    return { messageList, assistantResponse };
  } else {
    throw new Error("Respuesta vacía del asistente.");
  }
}

export { initializeService , sendMessage };