Add default destination group configuration in whatsapp gateway UI

gmail-agent/index.js

@@ -151,7 +151,7 @@ async function sendWhatsAppNotification(email, summary) {
                 'x-app-name': 'Gmail Agent'
             },
             body: JSON.stringify({
-                to: WHATSAPP_TO,
+                to: 'default',
                 message: message
             })
         });

whatsapp-gateway/public/app.js

@@ -97,13 +97,23 @@ async function fetchGroups() {
             return;
         }
 
+        const settingsRes = await fetch('api/settings');
+        const settingsData = await settingsRes.json();
+        const defaultDest = settingsData.settings?.defaultDestination || '';
+
         groupsTableBody.innerHTML = '';
         data.groups.forEach(g => {
+            const isDefault = g.id === defaultDest;
             const tr = document.createElement('tr');
             tr.innerHTML = `
-                <td><strong>${g.name}</strong><br><small style="color:var(--text-muted)">${g.id}</small></td>
+                <td>
+                    <strong>${g.name}</strong> 
+                    ${isDefault ? '<span class="badge success" style="margin-left:8px;font-size:10px;">Default</span>' : ''}
+                    <br><small style="color:var(--text-muted)">${g.id}</small>
+                </td>
                 <td>${g.participants}</td>
                 <td>
+                    ${!isDefault ? `<button class="primary-btn" onclick="setDefaultDestination('${g.id}')" style="margin-right: 8px;">Set Default</button>` : ''}
                     <button class="secondary-btn" onclick="getInviteLink('${g.id}')">Get Invite Link</button>
                 </td>
             `;
@@ -115,6 +125,24 @@ async function fetchGroups() {
     }
 }
 
+async function setDefaultDestination(groupId) {
+    try {
+        const res = await fetch('api/settings/default-destination', {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ destinationId: groupId })
+        });
+        const data = await res.json();
+        if (data.success) {
+            fetchGroups();
+        } else {
+            alert('Error setting default: ' + data.error);
+        }
+    } catch (e) {
+        alert('Failed to set default destination.');
+    }
+}
+
 document.getElementById('btn-refresh-groups').addEventListener('click', fetchGroups);
 
 // Connected Apps functionality

whatsapp-gateway/server.js

@@ -140,11 +140,20 @@ const handleSendMessage = async (req, res) => {
         return res.status(503).json({ success: false, error: 'WhatsApp Web client is not ready. Please scan the QR code in the dashboard.' });
     }
 
-    const { to, message } = req.body;
+    const { message } = req.body;
+    let to = req.body.to;
     if (!to || !message) {
         return res.status(400).json({ success: false, error: "Missing 'to' or 'message' fields." });
     }
 
+    if (to === 'default') {
+        const settings = loadSettings();
+        if (!settings.defaultDestination) {
+            return res.status(400).json({ success: false, error: 'No default destination configured. Please configure it in the dashboard.' });
+        }
+        to = settings.defaultDestination;
+    }
+
     try {
         let targetJid = to;
 
@@ -218,6 +227,36 @@ app.post('/api/groups/create', async (req, res) => {
     }
 });
 
+// ─── Settings ─────────────────────────────────────────────────────────────
+const fs = require('fs');
+const SETTINGS_FILE = path.join(__dirname, 'settings.json');
+
+function loadSettings() {
+    if (fs.existsSync(SETTINGS_FILE)) {
+        return JSON.parse(fs.readFileSync(SETTINGS_FILE));
+    }
+    return {};
+}
+
+function saveSettings(settings) {
+    fs.writeFileSync(SETTINGS_FILE, JSON.stringify(settings, null, 2));
+}
+
+app.get('/api/settings', (req, res) => {
+    res.json({ success: true, settings: loadSettings() });
+});
+
+app.post('/api/settings/default-destination', (req, res) => {
+    const { destinationId } = req.body;
+    if (!destinationId) return res.status(400).json({ success: false, error: 'destinationId is required' });
+    
+    const settings = loadSettings();
+    settings.defaultDestination = destinationId;
+    saveSettings(settings);
+    
+    res.json({ success: true, message: 'Default destination updated.' });
+});
+
 server.listen(PORT, '0.0.0.0', () => {
     console.log(`[WhatsApp Gateway] Server running at http://0.0.0.0:${PORT}`);
 });