App/lib/widgets/realm/realm_list.dart
2025-06-28 00:47:03 +08:00

89 lines
2.6 KiB
Dart

import 'package:flutter/material.dart';
import 'package:gap/gap.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:island/models/realm.dart';
import 'package:island/pods/network.dart';
import 'package:island/widgets/realm/realm_card.dart';
import 'package:riverpod_annotation/riverpod_annotation.dart';
import 'package:riverpod_paging_utils/riverpod_paging_utils.dart';
part 'realm_list.g.dart';
@riverpod
class RealmListNotifier extends _$RealmListNotifier
with CursorPagingNotifierMixin<SnRealm> {
static const int _pageSize = 20;
@override
Future<CursorPagingData<SnRealm>> build(String? query) {
return fetch(cursor: null, query: query);
}
@override
Future<CursorPagingData<SnRealm>> fetch({
required String? cursor,
String? query,
}) async {
final client = ref.read(apiClientProvider);
final offset = cursor == null ? 0 : int.parse(cursor);
final queryParams = {
'offset': offset,
'take': _pageSize,
if (query != null && query.isNotEmpty) 'query': query,
};
final response = await client.get(
'/discovery/realms',
queryParameters: queryParams,
);
final total = int.parse(response.headers.value('X-Total') ?? '0');
final List<dynamic> data = response.data;
final realms = data.map((json) => SnRealm.fromJson(json)).toList();
final hasMore = offset + realms.length < total;
final nextCursor = hasMore ? (offset + realms.length).toString() : null;
return CursorPagingData(
items: realms,
hasMore: hasMore,
nextCursor: nextCursor,
);
}
}
class SliverRealmList extends HookConsumerWidget {
const SliverRealmList({super.key, this.query});
final String? query;
@override
Widget build(BuildContext context, WidgetRef ref) {
return PagingHelperSliverView(
provider: realmListNotifierProvider(query),
futureRefreshable: realmListNotifierProvider(query).future,
notifierRefreshable: realmListNotifierProvider(query).notifier,
contentBuilder:
(data, widgetCount, endItemView) => SliverList.separated(
itemCount: widgetCount,
itemBuilder: (context, index) {
if (index == widgetCount - 1) {
return endItemView;
}
final realm = data.items[index];
return Padding(
padding: const EdgeInsets.symmetric(
horizontal: 16,
vertical: 8,
),
child: RealmCard(realm: realm),
);
},
separatorBuilder: (_, _) => const Gap(8),
),
);
}
}