debug: DB size

lib/model/metadata_db.dart

@@ -1,3 +1,5 @@
+import 'dart:io';
+
 import 'package:aves/model/image_metadata.dart';
 import 'package:flutter/foundation.dart';
 import 'package:path/path.dart';
@@ -27,6 +29,11 @@ class MetadataDb {
     );
   }
 
+  Future<int> dbFileSize() async {
+    final file = File((await path));
+    return await file.exists() ? file.length() : 0;
+  }
+
   Future<void> reset() async {
     debugPrint('$runtimeType reset');
     await (await _database).close();

lib/widgets/debug_page.dart

@@ -2,9 +2,8 @@ import 'package:aves/model/image_entry.dart';
 import 'package:aves/model/image_metadata.dart';
 import 'package:aves/model/metadata_db.dart';
 import 'package:aves/model/settings.dart';
-import 'package:aves/utils/android_file_utils.dart';
+import 'package:aves/utils/file_utils.dart';
 import 'package:aves/widgets/common/providers/media_query_data_provider.dart';
-import 'package:collection/collection.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/scheduler.dart';
 
@@ -18,6 +17,7 @@ class DebugPage extends StatefulWidget {
 }
 
 class DebugPageState extends State<DebugPage> {
+  Future<int> _dbFileSizeLoader;
   Future<List<CatalogMetadata>> _dbMetadataLoader;
   Future<List<AddressDetails>> _dbAddressLoader;
 
@@ -26,8 +26,7 @@ class DebugPageState extends State<DebugPage> {
   @override
   void initState() {
     super.initState();
-    _dbMetadataLoader = metadataDb.loadMetadataEntries();
+    _startDbReport();
-    _dbAddressLoader = metadataDb.loadAddresses();
   }
 
   @override
@@ -54,9 +53,20 @@ class DebugPageState extends State<DebugPage> {
             Text('With address: ${located.length}'),
             const Divider(),
             RaisedButton(
-              onPressed: () => metadataDb.reset(),
+              onPressed: () async {
+                await metadataDb.reset();
+                _startDbReport();
+              },
               child: const Text('Reset DB'),
             ),
+            FutureBuilder(
+              future: _dbFileSizeLoader,
+              builder: (context, AsyncSnapshot<int> snapshot) {
+                if (snapshot.hasError) return Text(snapshot.error.toString());
+                if (snapshot.connectionState != ConnectionState.done) return const SizedBox.shrink();
+                return Text('DB file size: ${formatFilesize(snapshot.data)}');
+              },
+            ),
             FutureBuilder(
               future: _dbMetadataLoader,
               builder: (context, AsyncSnapshot<List<CatalogMetadata>> snapshot) {
@@ -88,4 +98,11 @@ class DebugPageState extends State<DebugPage> {
       ),
     );
   }
+
+  void _startDbReport() {
+    _dbFileSizeLoader = metadataDb.dbFileSize();
+    _dbMetadataLoader = metadataDb.loadMetadataEntries();
+    _dbAddressLoader = metadataDb.loadAddresses();
+    setState(() {});
+  }
 }