// ignore_for_file: directives_ordering

// #docregion open
// To open the database, add these imports to the existing file defining the
// database class. They are used to open the database.
import 'dart:io';

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

// #enddocregion open

// #docregion overview
import 'package:drift/drift.dart';

// assuming that your file is called filename.dart. This will give an error at
// first, but it's needed for drift to know about the generated code
part 'filename.g.dart';

// this will generate a table called "todos" for us. The rows of that table will
// be represented by a class called "Todo".
class Todos extends Table {
  IntColumn get id => integer().autoIncrement()();
  TextColumn get title => text().withLength(min: 6, max: 32)();
  TextColumn get content => text().named('body')();
  IntColumn get category => integer().nullable()();
}

// This will make drift generate a class called "Category" to represent a row in
// this table. By default, "Categorie" would have been used because it only
//strips away the trailing "s" in the table name.
@DataClassName('Category')
class Categories extends Table {
  IntColumn get id => integer().autoIncrement()();
  TextColumn get description => text()();
}

// this annotation tells drift to prepare a database class that uses both of the
// tables we just defined. We'll see how to use that database class in a moment.
// #docregion open
@DriftDatabase(tables: [Todos, Categories])
class MyDatabase extends _$MyDatabase {
  // #enddocregion overview
  // we tell the database where to store the data with this constructor
  MyDatabase() : super(_openConnection());

  // you should bump this number whenever you change or add a table definition.
  // Migrations are covered later in the documentation.
  @override
  int get schemaVersion => 1;
// #docregion overview
}
// #enddocregion overview

LazyDatabase _openConnection() {
  // the LazyDatabase util lets us find the right location for the file async.
  return LazyDatabase(() async {
    // put the database file, called db.sqlite here, into the documents folder
    // for your app.
    final dbFolder = await getApplicationDocumentsDirectory();
    final file = File(p.join(dbFolder.path, 'db.sqlite'));
    return NativeDatabase(file);
  });
}

// #enddocregion open
// #docregion usage
Future<void> main() async {
  final database = MyDatabase();

  // Simple insert:
  await database
      .into(database.categories)
      .insert(CategoriesCompanion.insert(description: 'my first category'));

  // Simple select:
  final allCategories = await database.select(database.categories).get();
  print('Categories in database: $allCategories');
}
// #enddocregion usage