Added class clearance fixes and improvements

lib/components/pages/profile.dart

@@ -1,3 +1,5 @@
+import 'dart:typed_data';
+
 import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
 import 'package:provider/provider.dart';
@@ -5,6 +7,7 @@ import 'package:mileograph_flutter/objects/objects.dart';
 import 'package:mileograph_flutter/services/api_service.dart';
 import 'package:mileograph_flutter/services/authservice.dart';
 import 'package:mileograph_flutter/services/data_service.dart';
+import 'package:mileograph_flutter/utils/download_helper.dart';
 
 class ProfilePage extends StatefulWidget {
   const ProfilePage({super.key});
@@ -31,6 +34,10 @@ class _ProfilePageState extends State<ProfilePage> {
   bool _showAccountSettings = false;
   bool _changingPassword = false;
   static const List<String> _visibilityOptions = ['private', 'friends', 'public'];
+  static const List<String> _exportFormats = ['xlsx', 'json', 'csv'];
+  bool _exporting = false;
+  String _exportFormat = 'xlsx';
+  String? _exportError;
 
   UserSummary? _selectedUser;
   Friendship? _status;
@@ -71,6 +78,54 @@ class _ProfilePageState extends State<ProfilePage> {
     super.dispose();
   }
 
+  Future<void> _exportLogEntries() async {
+    if (_exporting) return;
+    setState(() {
+      _exporting = true;
+      _exportError = null;
+    });
+    try {
+      final data = context.read<DataService>();
+      final response = await data.api.getBytes(
+        '/legs/export?export_format=$_exportFormat',
+        headers: const {'accept': '*/*'},
+      );
+      final timestamp = DateTime.now()
+          .toIso8601String()
+          .replaceAll(':', '')
+          .replaceAll('.', '');
+      final fallbackName = 'log_entries_$timestamp.$_exportFormat';
+      final filename = response.filename ?? fallbackName;
+      final saveResult = await saveBytes(
+        Uint8List.fromList(response.bytes),
+        filename,
+        mimeType: response.contentType,
+      );
+      if (!mounted) return;
+      if (saveResult.canceled) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          const SnackBar(content: Text('Export canceled.')),
+        );
+      } else {
+        final path = saveResult.path;
+        final message = path == null || path.isEmpty
+            ? 'Download started.'
+            : 'Export saved to $path';
+        ScaffoldMessenger.of(context).showSnackBar(
+          SnackBar(content: Text(message)),
+        );
+      }
+    } on ApiException catch (e) {
+      if (!mounted) return;
+      setState(() => _exportError = e.message);
+    } catch (e) {
+      if (!mounted) return;
+      setState(() => _exportError = e.toString());
+    } finally {
+      if (mounted) setState(() => _exporting = false);
+    }
+  }
+
   Future<void> _searchUsers() async {
     final query = _searchController.text.trim();
     if (query.isEmpty) {
@@ -829,6 +884,8 @@ class _ProfilePageState extends State<ProfilePage> {
               firstChild: Column(
                 crossAxisAlignment: CrossAxisAlignment.start,
                 children: [
+                  _buildExportSection(theme),
+                  const SizedBox(height: 12),
                   if (showPrivacySpinner)
                     const Padding(
                       padding: EdgeInsets.symmetric(vertical: 8.0),
@@ -1023,6 +1080,60 @@ class _ProfilePageState extends State<ProfilePage> {
     );
   }
 
+  Widget _buildExportSection(ThemeData theme) {
+    return ExpansionTile(
+      tilePadding: EdgeInsets.zero,
+      childrenPadding: const EdgeInsets.only(top: 8),
+      title: Text(
+        'Export log entries',
+        style: theme.textTheme.titleMedium?.copyWith(fontWeight: FontWeight.w700),
+      ),
+      subtitle: const Text('Download your log as a file.'),
+      children: [
+        DropdownButtonFormField<String>(
+          value: _exportFormat,
+          decoration: const InputDecoration(
+            labelText: 'Export format',
+            border: OutlineInputBorder(),
+          ),
+          items: _exportFormats
+              .map(
+                (format) => DropdownMenuItem(
+                  value: format,
+                  child: Text(format.toUpperCase()),
+                ),
+              )
+              .toList(),
+          onChanged: _exporting
+              ? null
+              : (value) {
+                  if (value == null) return;
+                  setState(() => _exportFormat = value);
+                },
+        ),
+        const SizedBox(height: 12),
+        FilledButton.icon(
+          onPressed: _exporting ? null : _exportLogEntries,
+          icon: _exporting
+              ? const SizedBox(
+                  width: 18,
+                  height: 18,
+                  child: CircularProgressIndicator(strokeWidth: 2),
+                )
+              : const Icon(Icons.download),
+          label: Text(_exporting ? 'Exporting...' : 'Export'),
+        ),
+        if (_exportError != null) ...[
+          const SizedBox(height: 8),
+          Text(
+            _exportError!,
+            style: TextStyle(color: theme.colorScheme.error),
+          ),
+        ],
+      ],
+    );
+  }
+
   UserSummary? _otherUser(Friendship friendship, String? currentUserId) {
     final selfId = currentUserId ?? '';
     if (friendship.requester?.userId == selfId) return friendship.addressee;