import '../../database/database.dart';
import '../../l10n/strings.dart';
import '../../mews/document.dart';
import '../controllers/reader_settings_controller.dart' show LibraryController;
import 'page_blocks.dart';

Future<MewsPage> buildSubscriptionsPage(
  Uri url, {
  required MewsDatabase db,
  required LibraryController library,
  required Strings strings,
}) async {
  final sites = await db.allSubscriptions();
  final title = strings.t('subscriptions-title');

  return internalPage(
    url: url,
    title: title,
    body: [
      ...chrome(title: title, current: url, strings: strings),
      if (sites.isEmpty)
        ParagraphBlock([MewsText(strings.t('subscriptions-empty'))])
      else
        itemList([
          for (final site in sites)
            itemRow(
              href: site.url,
              label: site.title ?? site.url,
              date: dayText(site.createdAt),
              note: _unreadNote(library, strings, site.url),
            ),
        ]),
    ],
  );
}

/// The unread count for a site, or null when it has nothing new, so the row
/// carries no empty line.
String? _unreadNote(LibraryController library, Strings strings, String siteUrl) {
  final count = library.newEntries.value[siteUrl]?.length ?? 0;
  if (count == 0) return null;
  return countText(strings, count,
      none: 'count-unread-none',
      one: 'count-unread-one',
      many: 'count-unread-many');
}