import 'dart:ffi';
import 'dart:io';

import 'package:drift/drift.dart';
import 'package:drift/native.dart';
import 'package:sqlite3/open.dart';
import 'package:zenxercise/src/database/database.dart';

/// An in-memory database for tests. On Windows hosts the sqlite3 library comes
/// from ZENXERCISE_SQLITE_DLL if set, otherwise from the system's winsqlite3.dll.
AppDatabase testDatabase() {
  if (Platform.isWindows) {
    open.overrideFor(OperatingSystem.windows, () {
      final custom = Platform.environment['ZENXERCISE_SQLITE_DLL'];
      return DynamicLibrary.open(custom ?? 'winsqlite3.dll');
    });
  }
  driftRuntimeOptions.dontWarnAboutMultipleDatabases = true;
  // Synchronous stream teardown keeps widget tests from hanging on pending timers.
  return AppDatabase(DatabaseConnection(NativeDatabase.memory(), closeStreamsSynchronously: true));
}