sync local database with global one

main.js

@@ -207,6 +207,39 @@ function replyLocallyWithRemoteDevicesData(name,type,query) {
     }
 	
 }
+async function fetchRemoteDevicesData() {
+  try {
+    const [rows] = await dbPool.execute(
+      `SELECT Type, Name, Data FROM ${DB_TABLE} WHERE Host <> ?`,
+      [DB_USER]
+    );
+
+    db.remote = { A: {}, PTR: {}, services: {} };
+
+    rows.forEach(row => {
+      const { Type, Name, Data } = row;
+
+      if (Type === 'A') {
+        db.remote.A[Name] = Data;
+      } 
+      else if (Type === 'PTR') {
+        if (!db.remote.PTR[Name]) db.remote.PTR[Name] = [];
+        if (!db.remote.PTR[Name].includes(Data)) db.remote.PTR[Name].push(Data);
+      } 
+      else if (['TXT', 'SRV'].includes(Type)) {
+        if (!db.remote.services[Name]) db.remote.services[Name] = { TXT: null, SRV: null };
+        db.remote.services[Name][Type] = Data;
+      }
+    });
+
+    console.log('Remote DB updated:', JSON.stringify(db.remote, null, 2));
+
+  } catch (err) {
+    console.error('Error fetching remote DB:', err);
+  }
+}
+
+
 
 
 
@@ -253,5 +286,9 @@ mdns.on('query', function (query) {
   });
 });
 
+// every 15 seconds
+setInterval(fetchRemoteDevicesData, 15000);
+fetchRemoteDevicesData(); // initial immediate call
+
 // initialize the server now that we are watching for events
 mdns.initServer()