Add backup and restore functionality for rental data in settings

Signed-off-by: Hans Kokx <hans.d.kokx@gmail.com>
2026-03-20 09:32:02 +01:00
parent df7705a224
commit 477ca0ee07
5 changed files with 155 additions and 12 deletions
@@ -1,3 +1,4 @@
+import 'package:file_picker/file_picker.dart';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import 'package:rental_income_tracker/state/rent_controller.dart';
@@ -12,6 +13,32 @@ class SettingsScreen extends StatefulWidget {
 class _SettingsScreenState extends State<SettingsScreen> {
  final TextEditingController _rentController = TextEditingController();

+  Future<bool> _confirmImport() async {
+    final result = await showDialog<bool>(
+      context: context,
+      builder: (context) {
+        return AlertDialog(
+          title: const Text('Import backup file?'),
+          content: const Text(
+            'This will overwrite current local settings and logged entries with the contents of the selected backup file.',
+          ),
+          actions: <Widget>[
+            TextButton(
+              onPressed: () => Navigator.of(context).pop(false),
+              child: const Text('Cancel'),
+            ),
+            FilledButton(
+              onPressed: () => Navigator.of(context).pop(true),
+              child: const Text('Import'),
+            ),
+          ],
+        );
+      },
+    );
+
+    return result ?? false;
+  }
+
  @override
  void didChangeDependencies() {
    super.didChangeDependencies();
@@ -103,16 +130,71 @@ class _SettingsScreenState extends State<SettingsScreen> {
              const SizedBox(height: 12),
              FilledButton.icon(
                onPressed: () async {
-                  final path = await controller.exportJson();
+                  final directoryPath = await FilePicker.platform
+                      .getDirectoryPath(dialogTitle: 'Choose backup folder');
+                  if (directoryPath == null || !context.mounted) {
+                    return;
+                  }
+
+                  final path = await controller.exportBackupToDirectory(
+                    directoryPath,
+                  );
                  if (!context.mounted) {
                    return;
                  }
-                  ScaffoldMessenger.of(
-                    context,
-                  ).showSnackBar(SnackBar(content: Text('Exported to $path')));
+                  ScaffoldMessenger.of(context).showSnackBar(
+                    SnackBar(content: Text('Backup saved to $path')),
+                  );
                },
                icon: const Icon(Icons.download),
-                label: const Text('Export JSON'),
+                label: const Text('Create backup'),
+              ),
+              const SizedBox(height: 12),
+              FilledButton.icon(
+                onPressed: () async {
+                  final shouldImport = await _confirmImport();
+                  if (!shouldImport || !context.mounted) {
+                    return;
+                  }
+
+                  final result = await FilePicker.platform.pickFiles(
+                    dialogTitle: 'Choose backup file',
+                    type: FileType.custom,
+                    allowedExtensions: <String>['json'],
+                    withData: false,
+                  );
+                  final filePath = result?.files.single.path;
+                  if (filePath == null || !context.mounted) {
+                    return;
+                  }
+
+                  try {
+                    final path = await controller.importBackupFromFile(
+                      filePath,
+                    );
+                    if (!context.mounted) {
+                      return;
+                    }
+                    _rentController.text = controller.settings.rentUsd
+                        .toStringAsFixed(2);
+                    ScaffoldMessenger.of(context).showSnackBar(
+                      SnackBar(content: Text('Imported backup from $path')),
+                    );
+                  } catch (_) {
+                    if (!context.mounted) {
+                      return;
+                    }
+                    ScaffoldMessenger.of(context).showSnackBar(
+                      SnackBar(
+                        content: Text(
+                          controller.errorMessage ?? 'Restore failed.',
+                        ),
+                      ),
+                    );
+                  }
+                },
+                icon: const Icon(Icons.restore),
+                label: const Text('Import backup file'),
              ),
              const SizedBox(height: 16),
              const Text(