88 lines
2.5 KiB
Dart
88 lines
2.5 KiB
Dart
import 'package:easy_localization/easy_localization.dart';
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import 'package:surface/providers/sn_attachment.dart';
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import 'package:surface/providers/sn_network.dart';
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import 'package:surface/types/post.dart';
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import 'package:surface/widgets/navigation/app_scaffold.dart';
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import 'package:surface/widgets/post/post_item.dart';
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import 'package:very_good_infinite_list/very_good_infinite_list.dart';
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class ExploreScreen extends StatefulWidget {
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const ExploreScreen({super.key});
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@override
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State<ExploreScreen> createState() => _ExploreScreenState();
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}
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class _ExploreScreenState extends State<ExploreScreen> {
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bool _isBusy = true;
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final List<SnPost> _posts = List.empty(growable: true);
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int? _postCount;
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void _fetchPosts() async {
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if (_postCount != null && _posts.length >= _postCount!) return;
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setState(() => _isBusy = true);
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final sn = context.read<SnNetworkProvider>();
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final resp = await sn.client.get('/cgi/co/posts', queryParameters: {
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'take': 10,
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'offset': _posts.length,
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});
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final List<SnPost> out =
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List.from(resp.data['data']?.map((e) => SnPost.fromJson(e)) ?? []);
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Set<String> rids = {};
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for (var i = 0; i < out.length; i++) {
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rids.addAll(out[i].body['attachments']?.cast<String>() ?? []);
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}
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if (!mounted) return;
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final attach = context.read<SnAttachmentProvider>();
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final attachments = await attach.getMultiple(rids.toList());
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for (var i = 0; i < out.length; i++) {
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out[i] = out[i].copyWith(
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preload: SnPostPreload(
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attachments: attachments
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.where(
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(ele) => out[i].body['attachments']?.contains(ele.rid) ?? false,
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)
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.toList(),
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),
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);
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}
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_postCount = resp.data['count'];
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_posts.addAll(out);
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if (mounted) setState(() => _isBusy = false);
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}
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@override
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void initState() {
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super.initState();
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_fetchPosts();
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}
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@override
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Widget build(BuildContext context) {
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return AppScaffold(
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appBar: AppBar(
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title: Text('screenExplore').tr(),
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),
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body: InfiniteList(
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itemCount: _posts.length,
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isLoading: _isBusy,
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hasReachedMax: _postCount != null && _posts.length >= _postCount!,
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onFetchData: _fetchPosts,
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itemBuilder: (context, idx) {
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return PostItem(data: _posts[idx]);
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},
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separatorBuilder: (context, index) => const Divider(),
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),
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);
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}
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}
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