Fix message listener condition and expand getPnLidEntry with USync fa…

WPP_Whatsapp/api/layers/ListenerLayer.py

@@ -112,7 +112,7 @@ async def _afterPageScriptInjectedListener(self):
               if (!serialized) {
                 serialized = _safeSerialize(msg);
               }
-              if (!serialized) {
+              if (serialized) {
                 window['onMessage'](serialized);
               }
             });
@@ -134,7 +134,7 @@ async def _afterPageScriptInjectedListener(self):
               if (!serialized) {
                 serialized = _safeSerialize(msg);
               }
-              if (!serialized) {
+              if (serialized) {
                 window['onAnyMessage'](serialized);
               }
             });

WPP_Whatsapp/api/layers/RetrieverLayer.py

@@ -412,6 +412,36 @@ async def getCommonGroups_(self, wid: str):
                                                           page=self.page)
 
     async def getPnLidEntry_(self, phoneOrLid: str):
-        return await self.ThreadsafeBrowser.page_evaluate("(phoneOrLid) => WPP.contact.getPnLidEntry(phoneOrLid),",
-                                                          phoneOrLid,
-                                                          page=self.page)
+        """
+        Returns the phone-number/LID mapping and contact info for a given WID.
+
+        For @c.us inputs: resolves the LID from local cache; if not cached,
+        performs a USync server lookup via queryExists and caches the result.
+
+        For @lid inputs: resolves the phone number from local lidPnCache; if not
+        cached, performs a USync server lookup via queryExists (one network
+        round-trip) so that the mapping can be used for future messages.
+        """
+        return await self.ThreadsafeBrowser.page_evaluate(
+            """async ({ phoneOrLid }) => {
+                const entry = await WPP.contact.getPnLidEntry(phoneOrLid);
+                if (entry && entry.phoneNumber) return entry;
+                // Not in local lidPnCache — fall back to a USync server lookup.
+                // Note: this makes one outbound request to WhatsApp servers.
+                const qr = await WPP.contact.queryExists(phoneOrLid);
+                if (qr && qr.wid) {
+                    const w = qr.wid;
+                    return {
+                        ...entry,
+                        phoneNumber: {
+                            id: w.user,
+                            server: w.server,
+                            _serialized: w._serialized || (w.user + '@' + w.server)
+                        }
+                    };
+                }
+                return entry;
+            }""",
+            {"phoneOrLid": phoneOrLid},
+            page=self.page
+        )