barcode_scanner/lib/backend/objectbox/objectbox_manager.dart

import 'dart:io';
import 'package:path/path.dart' as p;
import 'package:path_provider/path_provider.dart';

import 'package:e_scan/backend/objectbox/objectbox.g.dart';
export 'package:e_scan/backend/objectbox/objectbox.g.dart';

late ObjectboxManager objectboxManager;

class ObjectboxManager {
  ObjectboxManager._create(this.store);

  /// The Store of this app.
  late final Store store;

  /// Create an instance of ObjectBox to use throughout the app.
  static Future<ObjectboxManager> create() async {
    Directory directory;
    if (Platform.isIOS) {
      directory = await getLibraryDirectory();
    } else {
      directory = await getApplicationSupportDirectory();
    }
    // Future<Store> openStore() {...} is defined in the generated objectbox.g.dart
    final store = await openStore(
      directory: p.join(directory.path, "objectbox_db"),
    );
    return ObjectboxManager._create(store);
  }

  /// Call it before `runApp()` in main.dart
  static Future init() async {
    objectboxManager = await ObjectboxManager.create();
  }
}