🐛 Fixes and optimzation on post
♻️ Replace freezed abstract classes with sealed
This commit is contained in:
@ -1,13 +1,59 @@
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import 'package:dio/dio.dart';
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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:island/widgets/response.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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import 'package:very_good_infinite_list/very_good_infinite_list.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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@ -15,96 +61,46 @@ class PostRepliesList extends HookConsumerWidget {
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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final postAsync = ref.watch(postRepliesProvider(postId));
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final isWide = isWideScreen(context);
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return postAsync.when(
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data:
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(controller) => SliverInfiniteList(
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itemCount: controller.posts.length,
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isLoading: controller.isLoading,
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hasReachedMax: controller.hasReachedMax,
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onFetchData: controller.fetchMore,
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itemBuilder: (context, index) {
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final post = controller.posts[index];
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return PostItem(
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item: post,
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backgroundColor: isWide ? Colors.transparent : null,
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);
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},
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separatorBuilder: (_, __) => const Divider(height: 1),
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emptyBuilder: (context) {
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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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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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),
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loading:
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() => SliverFillRemaining(
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child: const Center(child: CircularProgressIndicator()),
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),
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error:
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(e, _) => SliverFillRemaining(
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child: ResponseErrorWidget(
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error: e,
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onRetry: () {
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ref.invalidate(postRepliesProvider(postId));
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},
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),
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),
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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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final postRepliesProvider =
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FutureProviderFamily<_PostRepliesController, String>((ref, postId) async {
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final client = ref.watch(apiClientProvider);
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final controller = _PostRepliesController(client, postId);
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await controller.fetchMore();
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return controller;
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});
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class _PostRepliesController {
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_PostRepliesController(this._dio, this.parentId);
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final Dio _dio;
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final String parentId;
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final List<SnPost> posts = [];
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bool isLoading = false;
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bool hasReachedMax = false;
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int offset = 0;
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final int take = 20;
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int total = 0;
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Future<void> fetchMore() async {
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if (isLoading || hasReachedMax) return;
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isLoading = true;
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final response = await _dio.get(
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'/posts/$parentId/replies',
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queryParameters: {'offset': offset, 'take': take},
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);
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final List<SnPost> fetched =
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(response.data as List)
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.map((e) => SnPost.fromJson(e as Map<String, dynamic>))
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.toList();
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final headerTotal = int.tryParse(response.headers['x-total']?.first ?? '');
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if (headerTotal != null) total = headerTotal;
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posts.addAll(fetched);
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offset += fetched.length;
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if (posts.length >= total) hasReachedMax = true;
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isLoading = false;
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}
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}
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180
lib/widgets/post/post_replies.g.dart
Normal file
180
lib/widgets/post/post_replies.g.dart
Normal file
@ -0,0 +1,180 @@
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// GENERATED CODE - DO NOT MODIFY BY HAND
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part of 'post_replies.dart';
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// **************************************************************************
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// RiverpodGenerator
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// **************************************************************************
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String _$postRepliesNotifierHash() =>
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r'49c178102ec0a4136974a0e9a8f090f511abd542';
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/// Copied from Dart SDK
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class _SystemHash {
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_SystemHash._();
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static int combine(int hash, int value) {
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// ignore: parameter_assignments
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hash = 0x1fffffff & (hash + value);
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// ignore: parameter_assignments
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hash = 0x1fffffff & (hash + ((0x0007ffff & hash) << 10));
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return hash ^ (hash >> 6);
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}
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static int finish(int hash) {
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// ignore: parameter_assignments
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hash = 0x1fffffff & (hash + ((0x03ffffff & hash) << 3));
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// ignore: parameter_assignments
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hash = hash ^ (hash >> 11);
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return 0x1fffffff & (hash + ((0x00003fff & hash) << 15));
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}
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}
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abstract class _$PostRepliesNotifier
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extends BuildlessAutoDisposeAsyncNotifier<CursorPagingData<SnPost>> {
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late final String postId;
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FutureOr<CursorPagingData<SnPost>> build(String postId);
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}
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/// See also [PostRepliesNotifier].
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@ProviderFor(PostRepliesNotifier)
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const postRepliesNotifierProvider = PostRepliesNotifierFamily();
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/// See also [PostRepliesNotifier].
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class PostRepliesNotifierFamily
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extends Family<AsyncValue<CursorPagingData<SnPost>>> {
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/// See also [PostRepliesNotifier].
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const PostRepliesNotifierFamily();
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/// See also [PostRepliesNotifier].
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PostRepliesNotifierProvider call(String postId) {
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return PostRepliesNotifierProvider(postId);
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}
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@override
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PostRepliesNotifierProvider getProviderOverride(
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covariant PostRepliesNotifierProvider provider,
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) {
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return call(provider.postId);
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}
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static const Iterable<ProviderOrFamily>? _dependencies = null;
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@override
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Iterable<ProviderOrFamily>? get dependencies => _dependencies;
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static const Iterable<ProviderOrFamily>? _allTransitiveDependencies = null;
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@override
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Iterable<ProviderOrFamily>? get allTransitiveDependencies =>
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_allTransitiveDependencies;
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@override
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String? get name => r'postRepliesNotifierProvider';
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}
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/// See also [PostRepliesNotifier].
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class PostRepliesNotifierProvider
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extends
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AutoDisposeAsyncNotifierProviderImpl<
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PostRepliesNotifier,
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CursorPagingData<SnPost>
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> {
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/// See also [PostRepliesNotifier].
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PostRepliesNotifierProvider(String postId)
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: this._internal(
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() => PostRepliesNotifier()..postId = postId,
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from: postRepliesNotifierProvider,
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name: r'postRepliesNotifierProvider',
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debugGetCreateSourceHash:
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const bool.fromEnvironment('dart.vm.product')
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? null
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: _$postRepliesNotifierHash,
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dependencies: PostRepliesNotifierFamily._dependencies,
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allTransitiveDependencies:
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PostRepliesNotifierFamily._allTransitiveDependencies,
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postId: postId,
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);
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PostRepliesNotifierProvider._internal(
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super._createNotifier, {
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required super.name,
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required super.dependencies,
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required super.allTransitiveDependencies,
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required super.debugGetCreateSourceHash,
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required super.from,
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required this.postId,
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}) : super.internal();
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final String postId;
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@override
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FutureOr<CursorPagingData<SnPost>> runNotifierBuild(
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covariant PostRepliesNotifier notifier,
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) {
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return notifier.build(postId);
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}
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@override
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Override overrideWith(PostRepliesNotifier Function() create) {
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return ProviderOverride(
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origin: this,
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override: PostRepliesNotifierProvider._internal(
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() => create()..postId = postId,
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from: from,
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name: null,
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dependencies: null,
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allTransitiveDependencies: null,
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debugGetCreateSourceHash: null,
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postId: postId,
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),
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);
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}
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@override
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AutoDisposeAsyncNotifierProviderElement<
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PostRepliesNotifier,
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CursorPagingData<SnPost>
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>
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createElement() {
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return _PostRepliesNotifierProviderElement(this);
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}
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@override
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bool operator ==(Object other) {
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return other is PostRepliesNotifierProvider && other.postId == postId;
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}
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@override
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int get hashCode {
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var hash = _SystemHash.combine(0, runtimeType.hashCode);
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hash = _SystemHash.combine(hash, postId.hashCode);
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return _SystemHash.finish(hash);
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}
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}
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@Deprecated('Will be removed in 3.0. Use Ref instead')
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// ignore: unused_element
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mixin PostRepliesNotifierRef
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on AutoDisposeAsyncNotifierProviderRef<CursorPagingData<SnPost>> {
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/// The parameter `postId` of this provider.
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String get postId;
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}
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class _PostRepliesNotifierProviderElement
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extends
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AutoDisposeAsyncNotifierProviderElement<
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PostRepliesNotifier,
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CursorPagingData<SnPost>
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>
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with PostRepliesNotifierRef {
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_PostRepliesNotifierProviderElement(super.provider);
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@override
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String get postId => (origin as PostRepliesNotifierProvider).postId;
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}
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// ignore_for_file: type=lint
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// ignore_for_file: subtype_of_sealed_class, invalid_use_of_internal_member, invalid_use_of_visible_for_testing_member, deprecated_member_use_from_same_package
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Block a user