App/lib/screens/posts/post_detail.dart
2025-06-30 23:55:44 +08:00

121 lines
4.0 KiB
Dart

import 'package:flutter/material.dart';
import 'package:gap/gap.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:island/models/post.dart';
import 'package:island/pods/network.dart';
import 'package:island/pods/userinfo.dart';
import 'package:island/services/responsive.dart';
import 'package:island/widgets/app_scaffold.dart';
import 'package:island/widgets/post/post_item.dart';
import 'package:island/widgets/post/post_quick_reply.dart';
import 'package:island/widgets/post/post_replies.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:riverpod_annotation/riverpod_annotation.dart';
import 'package:styled_widget/styled_widget.dart';
part 'post_detail.g.dart';
@riverpod
Future<SnPost?> post(Ref ref, String id) async {
final client = ref.watch(apiClientProvider);
final resp = await client.get('/posts/$id');
return SnPost.fromJson(resp.data);
}
final postStateProvider = StateNotifierProvider.family<PostState, AsyncValue<SnPost?>, String>(
(ref, id) => PostState(ref, id),
);
class PostState extends StateNotifier<AsyncValue<SnPost?>> {
final Ref _ref;
final String _id;
PostState(this._ref, this._id) : super(const AsyncValue.loading()) {
// Initialize with the initial post data
_ref.listen<AsyncValue<SnPost?>>(
postProvider(_id),
(_, next) => state = next,
);
}
void updatePost(SnPost? newPost) {
if (newPost != null) {
state = AsyncData(newPost);
}
}
}
class PostDetailScreen extends HookConsumerWidget {
final String id;
const PostDetailScreen({super.key, required this.id});
@override
Widget build(BuildContext context, WidgetRef ref) {
final postState = ref.watch(postStateProvider(id));
final user = ref.watch(userInfoProvider);
final isWide = isWideScreen(context);
return AppScaffold(
appBar: AppBar(title: const Text('Post')),
body: postState.when(
data: (post) {
return Stack(
fit: StackFit.expand,
children: [
CustomScrollView(
slivers: [
SliverToBoxAdapter(
child: Column(
children: [
PostItem(
item: post!,
isOpenable: false,
isFullPost: true,
backgroundColor: isWide ? Colors.transparent : null,
onUpdate: (newItem) {
// Update the local state with the new post data
ref.read(postStateProvider(id).notifier).updatePost(newItem);
},
),
const Divider(height: 1),
],
),
),
PostRepliesList(postId: id),
SliverGap(MediaQuery.of(context).padding.bottom + 80),
],
),
if (user.value != null)
Positioned(
bottom: 0,
left: 0,
right: 0,
child: Material(
elevation: 2,
child: postState.when(
data: (post) => PostQuickReply(
parent: post!,
onPosted: () {
ref.invalidate(postRepliesNotifierProvider(id));
},
),
loading: () => const SizedBox.shrink(),
error: (_, __) => const SizedBox.shrink(),
).padding(
bottom: MediaQuery.of(context).padding.bottom + 16,
top: 16,
horizontal: 16,
),
),
),
],
);
},
loading: () => const Center(child: CircularProgressIndicator()),
error: (e, _) => Text('Error: $e'),
),
);
}
}