get addr and port of the broker and not of the platform

lib/after_setup_pages/discovery_page.dart

@@ -22,11 +22,11 @@ class DiscoveryPage extends StatefulWidget {
 
 class _DiscoveryPageState extends State<DiscoveryPage> {
 
-  List<(InternetAddress, int, String)> platformsIpsPorts = [];
+  List<(String, int, String)> platformsIpsPorts = [];
   bool isLoading = false;
 
   // List of button of local platform detected 
-  Widget localDiscoveryConnections(List<(InternetAddress, int, String)> platformsIpsPorts, bool isLoading) {
+  Widget localDiscoveryConnections(List<(String, int, String)> platformsIpsPorts, bool isLoading) {
 
     if (isLoading) {
       return Center(
@@ -59,10 +59,10 @@ class _DiscoveryPageState extends State<DiscoveryPage> {
                       ),
                     ),
                     AutoSizeText(
-                      platformsIpsPorts[index].$1.address
+                      platformsIpsPorts[index].$1
                     ),
-                    const AutoSizeText(
-                      '1883'
+                    AutoSizeText(
+                      platformsIpsPorts[index].$2.toString()
                     )
                   ],
                 )
@@ -74,8 +74,8 @@ class _DiscoveryPageState extends State<DiscoveryPage> {
                 MaterialPageRoute(
                   builder: (context) => ManualConnectionPage(
                     name: platformsIpsPorts[index].$3,
-                    ip: platformsIpsPorts[index].$1.address,
-                    port: "1883"
+                    ip: platformsIpsPorts[index].$1,
+                    port: platformsIpsPorts[index].$2.toString()
                   ),
                 ),
               );
@@ -94,7 +94,7 @@ class _DiscoveryPageState extends State<DiscoveryPage> {
     platformDiscovery().then(
       (value) {
         platformsIpsPorts = value;
-        platformsIpsPorts.sort((a, b) => a.$1.host.compareTo(b.$1.host));
+        platformsIpsPorts.sort((a, b) => a.$3.compareTo(b.$3));
         setState(() {});
       }
     );
@@ -121,7 +121,7 @@ class _DiscoveryPageState extends State<DiscoveryPage> {
                 platformDiscovery().then(
                   (value) {
                     platformsIpsPorts = value;
-                    platformsIpsPorts.sort((a, b) => a.$1.host.compareTo(b.$1.host));
+                    platformsIpsPorts.sort((a, b) => a.$3.compareTo(b.$3));
                     setState(() {});
                   }
                 );

lib/data/utils.dart

@@ -285,10 +285,9 @@ Future<bool> checkIfConnectionValid(BuildContext context, String name, String ho
   broadcast  with UTF-8 format and getting an answer for each platform
 */
 
-Future<List<(InternetAddress, int, String)>> platformDiscovery() async {
+Future<List<(String, int, String)>> platformDiscovery() async {
 
-  List<(InternetAddress, int, String)> ipPort = []; 
-  String waitedAnswer = '{"name": "panduza_platform","version": 1.0}';
+  List<(String, int, String)> ipPort = []; 
 
   // Could have some problem with some android phone ?
   List<NetworkInterface> listInterface = await NetworkInterface.list();
@@ -303,13 +302,24 @@ Future<List<(InternetAddress, int, String)>> platformDiscovery() async {
           String answer = utf8.decode(datagram.data);
 
           Map<String, dynamic> answerMap = jsonDecode(answer);
-          String? platformName = answerMap["name"];
 
-          // if platform name is not given in the answer payload do not add this platform 
-          if (platformName != null) {
-            // Get addr, port and platform name
-            if (!ipPort.contains((datagram.address, datagram.port))) ipPort.add((datagram.address, datagram.port, platformName));
-          }
+          Map<String, dynamic>? brokerInfo = answerMap["broker"];
+           Map<String, dynamic>? platformInfo = answerMap["platform"];
+
+          if (brokerInfo != null && platformInfo != null) {
+            String? brokerAddr = brokerInfo["addr"];
+            int? brokerPort = brokerInfo["port"];
+            String? platformName = platformInfo["name"];
+
+            // if platform name is not given in the answer payload do not add this platform 
+            if (platformName != null && brokerAddr != null && brokerPort != null) {
+              // Get addr, port and platform name
+              // if (!ipPort.contains((datagram.address, datagram.port, platformName))) ipPort.add((datagram.address, datagram.port, platformName));
+              if (!ipPort.contains((brokerAddr, brokerPort, platformName))) ipPort.add((brokerAddr, brokerPort, platformName));
+            }
+          } 
+
+
         }
       });
 
@@ -325,6 +335,4 @@ Future<List<(InternetAddress, int, String)>> platformDiscovery() async {
   }
 
   return ipPort;
-}
-
-
+}