fooder-app/lib/storage.dart

import 'dart:async';

import 'package:flutter/widgets.dart';
import 'package:path/path.dart';
import 'package:sqflite/sqflite.dart';
import 'package:fooder/storage/product.dart';
import 'package:fooder/storage/diary.dart';

class Storage {
  Database db;
  ProductStorage product;
  DiaryStorage diary;

  static const String path = "storage.db";

  Storage({required this.db, required this.product, required this.diary});

  static Future<Storage> create() async {
    WidgetsFlutterBinding.ensureInitialized();
    var db = await openDatabase(
      join(await getDatabasesPath(), path),
      onCreate: createTables,
      version: 1,
    );
    return Storage(
        db: db, product: ProductStorage(db: db), diary: DiaryStorage(db: db));
  }

  Future<void> reset() async {
    await db.close();
    await deleteDatabase(join(await getDatabasesPath(), path));
    db = await openDatabase(
      join(await getDatabasesPath(), path),
      onCreate: createTables,
      version: 1,
    );
    product = ProductStorage(db: db);
    diary = DiaryStorage(db: db);
  }

  static Future<void> createTables(Database db, int version) async {
    var batch = db.batch();
    await ProductStorage.createTable(batch);
    await DiaryStorage.createTable(batch);
    await batch.commit(noResult: true);
  }
}