♻️ Refactor to replace Hive with Sqlite

lib/providers/database.dart

@@ -1,10 +1,31 @@
+import 'dart:io';
+
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
+import 'package:path/path.dart' show join;
+import 'package:path_provider/path_provider.dart';
 import 'package:surface/database/database.dart';
 
 class DatabaseProvider {
-  late final AppDatabase db;
+  late AppDatabase db;
 
   DatabaseProvider(BuildContext context) {
     db = AppDatabase();
   }
-}
+
+  Future<int> getDatabaseSize() async {
+    if (kIsWeb) return 0;
+    final basepath = await getApplicationSupportDirectory();
+    return await File(join(basepath.path, 'solar_network_data.sqlite'))
+        .length();
+  }
+
+  Future<void> removeDatabase() async {
+    if (kIsWeb) return;
+    final basepath = await getApplicationSupportDirectory();
+    final file = File(join(basepath.path, 'solar_network_data.sqlite'));
+    db.close();
+    await file.delete();
+    db = AppDatabase();
+  }
+}