import 'dart:io';
import 'dart:math';

import 'package:flutter_test/flutter_test.dart';
import 'package:path/path.dart' as p;
import 'package:receipity/services/product_repository.dart';
import 'package:sqflite_common_ffi/sqflite_ffi.dart';

var _dbSeq = 0;
var _sqliteReady = false;

void ensureTestSqlite() {
  if (_sqliteReady) return;
  sqfliteFfiInit();
  databaseFactory = databaseFactoryFfi;
  _sqliteReady = true;
}

ProductRepository memoryRepository() {
  ensureTestSqlite();
  final dir = Directory(p.join('.dart_tool', 'receipity_test_db'))
    ..createSync(recursive: true);
  final name =
      'db_${DateTime.now().microsecondsSinceEpoch}_${_dbSeq++}_${Random().nextInt(1 << 32)}.sqlite';
  return ProductRepository(databasePath: p.join(dir.path, name));
}

Future<void> pumpUntilFound(
  WidgetTester tester,
  Finder finder, {
  int attempts = 40,
}) async {
  for (var i = 0; i < attempts; i++) {
    await tester.pump();
    if (finder.evaluate().isNotEmpty) return;
    await tester.runAsync(
      () => Future<void>.delayed(const Duration(milliseconds: 20)),
    );
  }
  throw TestFailure('Timed out waiting for $finder');
}