checkNow method

Implementation

Future<void> checkNow({bool ignoreSkips = false}) async {
  final generation = ++_generation;
  _set(const PrismUpdateChecking());
  try {
    final latest = await _source.fetchLatest();
    if (generation != _generation) return;
    final result = policy.evaluate(currentVersion, latest);
    final remote = switch (_source) {
      RemoteUpdateSource remote => remote,
      _ => null,
    };
    final downloadUrl = remote?.downloadUrlFor(platformInfo.key);
    final notes = remote?.notesFor(result.latest ?? currentVersion);

    final PrismUpdateState next;
    if (result.isUpdateAvailable) {
      final available = PrismUpdateAvailable(
        current: currentVersion,
        result: result,
        downloadUrl: downloadUrl,
        notes: notes,
      );
      final latestVersion = result.latest;
      final skipped =
          !ignoreSkips &&
          !result.isForced &&
          latestVersion != null &&
          await (_skipStore?.isSkipped(latestVersion) ?? Future.value(false));
      next = skipped ? PrismUpdateSkipped(available: available) : available;
    } else {
      next = PrismUpdateUpToDate(latest: result.latest);
    }
    _set(next);
  } catch (error, stackTrace) {
    if (generation != _generation) return;
    _set(PrismUpdateFailure(error, stackTrace));
  }
}