107 lines
3.2 KiB
Dart
107 lines
3.2 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:hooks_riverpod/hooks_riverpod.dart';
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import 'package:island/models/post.dart';
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import 'package:island/pods/network.dart';
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import 'package:island/services/responsive.dart';
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import 'package:island/widgets/content/paging_helper_ext.dart';
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import 'package:island/widgets/post/post_item.dart';
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import 'package:riverpod_annotation/riverpod_annotation.dart';
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import 'package:riverpod_paging_utils/riverpod_paging_utils.dart';
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import 'package:styled_widget/styled_widget.dart';
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part 'post_replies.g.dart';
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@riverpod
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class PostRepliesNotifier extends _$PostRepliesNotifier
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with CursorPagingNotifierMixin<SnPost> {
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static const int _pageSize = 20;
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PostRepliesNotifier();
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String? _postId;
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@override
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Future<CursorPagingData<SnPost>> build(String postId) {
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_postId = postId;
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return fetch(cursor: null);
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}
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@override
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Future<CursorPagingData<SnPost>> fetch({required String? cursor}) async {
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if (_postId == null) {
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throw StateError('PostRepliesNotifier must be initialized with postId');
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}
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final client = ref.read(apiClientProvider);
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final offset = cursor == null ? 0 : int.parse(cursor);
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final response = await client.get(
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'/posts/$_postId/replies',
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queryParameters: {'offset': offset, 'take': _pageSize},
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);
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final total = int.parse(response.headers.value('X-Total') ?? '0');
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final List<dynamic> data = response.data;
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final posts = data.map((json) => SnPost.fromJson(json)).toList();
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final hasMore = offset + posts.length < total;
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final nextCursor = hasMore ? (offset + posts.length).toString() : null;
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return CursorPagingData(
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items: posts,
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hasMore: hasMore,
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nextCursor: nextCursor,
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);
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}
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}
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class PostRepliesList extends HookConsumerWidget {
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final String postId;
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const PostRepliesList({super.key, required this.postId});
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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final isWide = isWideScreen(context);
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return PagingHelperSliverView(
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provider: postRepliesNotifierProvider(postId),
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futureRefreshable: postRepliesNotifierProvider(postId).future,
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notifierRefreshable: postRepliesNotifierProvider(postId).notifier,
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contentBuilder: (data, widgetCount, endItemView) {
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if (data.items.isEmpty) {
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return SliverToBoxAdapter(
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child: Column(
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children: [
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Text(
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'No replies',
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textAlign: TextAlign.center,
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).fontSize(18).bold(),
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const Text('Why not start a discussion?'),
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],
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).padding(vertical: 16),
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);
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}
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return SliverList.builder(
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itemCount: widgetCount,
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itemBuilder: (context, index) {
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if (index == widgetCount - 1) {
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return endItemView;
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}
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return Column(
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children: [
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PostItem(
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item: data.items[index],
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backgroundColor: isWide ? Colors.transparent : null,
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),
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const Divider(height: 1),
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],
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);
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},
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);
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},
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);
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}
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}
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