Enhance GPX export functionality with customizable parameters and improved metadata

lib/l10n/app_en.arb

@@ -1345,14 +1345,19 @@
   "contacts_contactAdvertCopied": "Advert copied to Clipboard.",
   "contacts_contactAdvertCopyFailed": "Copying advert to Clipboard failed.",
 
-  "settings_gpxExportRepeaters": "Export repeaters to GPX",
+  "settings_gpxExportRepeaters": "Export repeaters / room server to GPX",
-  "settings_gpxExportRepeatersSubtitle": "Exports repeaters with a location to GPX file.",
+  "settings_gpxExportRepeatersSubtitle": "Exports repeaters / roomserver with a location to GPX file.",
-  "settings_gpxExportContacts": "Export contacts to GPX",
+  "settings_gpxExportContacts": "Export companions to GPX",
-  "settings_gpxExportContactsSubtitle": "Exports chat contacts with a location to GPX file.",
+  "settings_gpxExportContactsSubtitle": "Exports companions with a location to GPX file.",
-  "settings_gpxExportAll": "Export all to GPX",
+  "settings_gpxExportAll": "Export all contacts to GPX",
   "settings_gpxExportAllSubtitle": "Exports all contacts with a location to GPX file.", 
   "settings_gpxExportSuccess": "Successfully exported GPX file.",
   "settings_gpxExportNoContacts": "No contacts to export.",
   "settings_gpxExportNotAvailable": "Not supported on your device/OS",
-  "settings_gpxExportError": "There was an error when exporting."
+  "settings_gpxExportError": "There was an error when exporting.",
+  "settings_gpxExportRepeatersRoom": "Repeater & room server locations",
+  "settings_gpxExportChat": "Companion locations",
+  "settings_gpxExportAllContacts": "All contacts locations",
+  "settings_gpxExportShareText": "Map data exported from meshcore-open",
+  "settings_gpxExportShareSubject": "meshcore-open GPX map data export"
 }

lib/screens/settings_screen.dart

@@ -688,9 +688,22 @@ class _SettingsScreenState extends State<SettingsScreen> {
     );
   }
 
-  _gpxExport(GpxExport exporter) async {
+  _gpxExport(
+    GpxExport exporter,
+    String name,
+    String description,
+    String filename,
+    String shareText,
+    String subject,
+  ) async {
     final l10n = context.l10n;
-    final result = await exporter.exportGPX();
+    final result = await exporter.exportGPX(
+      name,
+      description,
+      filename,
+      shareText,
+      subject,
+    );
     if (!mounted) return;
     switch (result) {
       case gpxExportSuccess:
@@ -701,14 +714,17 @@ class _SettingsScreenState extends State<SettingsScreen> {
         ScaffoldMessenger.of(context).showSnackBar(
           SnackBar(content: Text(l10n.settings_gpxExportNoContacts)),
         );
+        break;
       case gpxExportNotAvailable:
         ScaffoldMessenger.of(context).showSnackBar(
           SnackBar(content: Text(l10n.settings_gpxExportNotAvailable)),
         );
+        break;
       case gpxExportFailed:
         ScaffoldMessenger.of(
           context,
         ).showSnackBar(SnackBar(content: Text(l10n.settings_gpxExportError)));
+        break;
     }
   }
 
@@ -725,7 +741,14 @@ class _SettingsScreenState extends State<SettingsScreen> {
             onTap: () async {
               final exporter = GpxExport(connector);
               exporter.addRepeaters();
-              _gpxExport(exporter);
+              _gpxExport(
+                exporter,
+                l10n.map_repeater,
+                l10n.settings_gpxExportRepeatersRoom,
+                "meshcore_repeaters_",
+                l10n.settings_gpxExportShareText,
+                l10n.settings_gpxExportShareSubject,
+              );
             },
           ),
           ListTile(
@@ -736,7 +759,14 @@ class _SettingsScreenState extends State<SettingsScreen> {
             onTap: () async {
               final exporter = GpxExport(connector);
               exporter.addContacts();
-              _gpxExport(exporter);
+              _gpxExport(
+                exporter,
+                l10n.map_repeater,
+                l10n.settings_gpxExportChat,
+                "meshcore_contacts_",
+                l10n.settings_gpxExportShareText,
+                l10n.settings_gpxExportShareSubject,
+              );
             },
           ),
           ListTile(
@@ -747,7 +777,14 @@ class _SettingsScreenState extends State<SettingsScreen> {
             onTap: () async {
               final exporter = GpxExport(connector);
               exporter.addAll();
-              _gpxExport(exporter);
+              _gpxExport(
+                exporter,
+                l10n.map_repeater,
+                l10n.settings_gpxExportAllContacts,
+                "meshcore_all_",
+                l10n.settings_gpxExportShareText,
+                l10n.settings_gpxExportShareSubject,
+              );
             },
           ),
         ],

lib/utils/gpx_export.dart

@@ -102,7 +102,13 @@ class GpxExport {
     }
   }
 
-  Future<int> exportGPX() async {
+  Future<int> exportGPX(
+    String name,
+    String description,
+    String filename,
+    String shareText,
+    String subject,
+  ) async {
     if (_contacts.isEmpty) {
       debugPrint("No repeaters to export – nothing to share.");
       return gpxExportNoContacts;
@@ -112,10 +118,10 @@ class GpxExport {
       // 1. Build GPX content (your existing logic – unchanged here)
       final gpx = Gpx()
         ..version = '1.1'
-        ..creator = 'meshcore-open Repeater Exporter'
+        ..creator = 'meshcore-open exporter'
         ..metadata = Metadata(
-          name: 'Meshcore Repeaters',
+          name: name,
-          desc: 'Repeater & room locations exported from meshcore-open',
+          desc: description,
           time: DateTime.now().toUtc(),
         );
 
@@ -142,7 +148,9 @@ class GpxExport {
           .replaceAll('.', '-')
           .split('T')
           .join('_');
-      final path = '${dir.path}/meshcore_repeaters_$timestamp.gpx';
+
+      // ignore: unnecessary_string_escapes
+      final path = '${dir.path}/$filename$timestamp.gpx';
 
       final file = File(path);
       await file.writeAsString(xml);
@@ -150,9 +158,8 @@ class GpxExport {
       // 3. Modern share call (2025+ style)
       final result = await SharePlus.instance.share(
         ShareParams(
-          text:
+          text: shareText,
-              'Repeater locations exported from meshcore-open app as GPX file.',
+          subject: subject,
-          subject: 'Meshcore Repeaters GPX Export',
           files: [XFile(path)],
           // Optional: sharePositionOrigin: ... (if you want iPad popover positioning)
         ),