feat: implement multi-line session failover with round-robin strategy and session readiness validation for OTP delivery.

whatsapp-gateway/baileys-client.js

@@ -804,11 +804,17 @@ function getActiveSessions() {
     return Array.from(sessions.keys());
 }
 
+function isSessionReady(session_key) {
+    const sock = sessions.get(session_key);
+    return !!(sock && sock.user && sock.user.id);
+}
+
 module.exports = {
     startSession,
     disconnectSession,
     sendMessage,
     getActiveSessions,
+    isSessionReady,
     checkContact,
     exportChatHistory,
     throttleManager

whatsapp-gateway/server.js

@@ -20,7 +20,7 @@ for (const p of envPaths) {
 
 const express = require('express');
 const cors = require('cors');
-const { startSession, disconnectSession, sendMessage, getActiveSessions, checkContact, exportChatHistory, throttleManager } = require('./baileys-client');
+const { startSession, disconnectSession, sendMessage, getActiveSessions, isSessionReady, checkContact, exportChatHistory, throttleManager } = require('./baileys-client');
 
 const app = express();
 app.use(cors());
@@ -79,7 +79,17 @@ app.post('/api/sessions/disconnect', async (req, res) => {
 
 // Get list of active session keys in memory
 app.get('/api/sessions/active', (req, res) => {
-    res.json({ status: 'success', active_sessions: getActiveSessions() });
+    const active = getActiveSessions();
+    const readySessions = active.filter(key => isSessionReady(key));
+    res.json({ 
+        status: 'success', 
+        active_sessions: active,
+        ready_sessions: readySessions,
+        details: active.map(key => ({
+            session_key: key,
+            ready: isSessionReady(key)
+        }))
+    });
 });
 
 // Get throttle queue status for all sessions (Anti-Ban monitoring)