Added a queue to handle multiple messages

src/app.ts

@@ -9,6 +9,50 @@ import { typing } from "./utils/presence"
 const PORT = process.env.PORT ?? 3008
 /** ID del asistente de OpenAI */
 const ASSISTANT_ID = process.env.ASSISTANT_ID ?? ''
+const userQueues = new Map();
+const userLocks = new Map(); // New lock mechanism
+
+/**
+ * Function to process the user's message by sending it to the OpenAI API
+ * and sending the response back to the user.
+ */
+const processUserMessage = async (ctx, { flowDynamic, state, provider }) => {
+    await typing(ctx, provider);
+    const response = await toAsk(ASSISTANT_ID, ctx.body, state);
+
+    // Split the response into chunks and send them sequentially
+    const chunks = response.split(/\n\n+/);
+    for (const chunk of chunks) {
+        const cleanedChunk = chunk.trim().replace(/【.*?】[ ] /g, "");
+        await flowDynamic([{ body: cleanedChunk }]);
+    }
+};
+
+/**
+ * Function to handle the queue for each user.
+ */
+const handleQueue = async (userId) => {
+    const queue = userQueues.get(userId);
+    
+    if (userLocks.get(userId)) {
+        return; // If locked, skip processing
+    }
+
+    while (queue.length > 0) {
+        userLocks.set(userId, true); // Lock the queue
+        const { ctx, flowDynamic, state, provider } = queue.shift();
+        try {
+            await processUserMessage(ctx, { flowDynamic, state, provider });
+        } catch (error) {
+            console.error(Error processing message for user ${userId}:, error);
+        } finally {
+            userLocks.set(userId, false); // Release the lock
+        }
+    }
+
+    userLocks.delete(userId); // Remove the lock once all messages are processed
+    userQueues.delete(userId); // Remove the queue once all messages are processed
+};
 
 /**
  * Flujo de bienvenida que maneja las respuestas del asistente de IA
@@ -16,16 +60,20 @@ const ASSISTANT_ID = process.env.ASSISTANT_ID ?? ''
  */
 const welcomeFlow = addKeyword<BaileysProvider, MemoryDB>(EVENTS.WELCOME)
     .addAction(async (ctx, { flowDynamic, state, provider }) => {
-        await typing(ctx, provider)
-        const response = await toAsk(ASSISTANT_ID, ctx.body, state)
+        const userId = ctx.from; // Use the user's ID to create a unique queue for each user
 
-        // Dividir la respuesta en chunks y enviarlos secuencialmente
-        const chunks = response.split(/\n\n+/)
-        for (const chunk of chunks) {
-            const cleanedChunk = chunk.trim().replace(/【.*?】/g, "");
-            await flowDynamic([{ body: cleanedChunk }])
+        if (!userQueues.has(userId)) {
+            userQueues.set(userId, []);
         }
-    })
+
+        const queue = userQueues.get(userId);
+        queue.push({ ctx, flowDynamic, state, provider });
+
+        // If this is the only message in the queue, process it immediately
+        if (!userLocks.get(userId) && queue.length === 1) {
+            await handleQueue(userId);
+        }
+    });
 
 /**
  * Función principal que configura y inicia el bot
@@ -37,7 +85,7 @@ const main = async () => {
      * Flujo del bot
      * @type {import('@builderbot/bot').Flow<BaileysProvider, MemoryDB>}
      */
-    const adapterFlow = createFlow([welcomeFlow])
+    const adapterFlow = createFlow([welcomeFlow]);
 
     /**
      * Proveedor de servicios de mensajería
@@ -45,14 +93,14 @@ const main = async () => {
      */
     const adapterProvider = createProvider(BaileysProvider, {
         groupsIgnore: true,
-        readStatus: false
-    })
+        readStatus: false,
+    });
 
     /**
      * Base de datos en memoria para el bot
      * @type {MemoryDB}
      */
-    const adapterDB = new MemoryDB()
+    const adapterDB = new MemoryDB();
 
     /**
      * Configuración y creación del bot
@@ -62,10 +110,10 @@ const main = async () => {
         flow: adapterFlow,
         provider: adapterProvider,
         database: adapterDB,
-    })
+    });
 
-    httpInject(adapterProvider.server)
-    httpServer(+PORT)
-}
+    httpInject(adapterProvider.server);
+    httpServer(+PORT);
+};
 
-main()
+main();