116 lines
4.2 KiB
Dart
116 lines
4.2 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:infinite_scroll_pagination/infinite_scroll_pagination.dart';
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import 'package:provider/provider.dart';
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import 'package:simplecloudnotifier/api/api_client.dart';
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import 'package:simplecloudnotifier/components/layout/scaffold.dart';
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import 'package:simplecloudnotifier/models/channel.dart';
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import 'package:simplecloudnotifier/models/subscription.dart';
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import 'package:simplecloudnotifier/models/user.dart';
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import 'package:simplecloudnotifier/state/application_log.dart';
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import 'package:simplecloudnotifier/state/app_auth.dart';
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import 'package:simplecloudnotifier/pages/subscription_list/subscription_list_item.dart';
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import 'package:simplecloudnotifier/state/scn_data_cache.dart';
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class SubscriptionListPage extends StatefulWidget {
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const SubscriptionListPage({super.key});
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@override
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State<SubscriptionListPage> createState() => _SubscriptionListPageState();
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}
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class _SubscriptionListPageState extends State<SubscriptionListPage> {
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final PagingController<int, Subscription> _pagingController = PagingController.fromValue(PagingState(nextPageKey: null, itemList: [], error: null), firstPageKey: 0);
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final userCache = Map<String, UserPreview>();
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final channelCache = Map<String, ChannelPreview>();
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@override
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void initState() {
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super.initState();
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for (var v in SCNDataCache().getChannelMap().entries) channelCache[v.key] = v.value.toPreview(null);
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_pagingController.addPageRequestListener(_fetchPage);
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_pagingController.refresh();
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}
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@override
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void didChangeDependencies() {
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super.didChangeDependencies();
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}
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@override
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void dispose() {
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ApplicationLog.debug('SubscriptionListPage::dispose');
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_pagingController.dispose();
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super.dispose();
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}
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Future<void> _fetchPage(int pageKey) async {
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final acc = Provider.of<AppAuth>(context, listen: false);
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ApplicationLog.debug('Start SubscriptionListPage::_pagingController::_fetchPage [ ${pageKey} ]');
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if (!acc.isAuth()) {
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_pagingController.error = 'Not logged in';
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return;
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}
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try {
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final items = (await APIClient.getSubscriptionList(acc)).toList();
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items.sort((a, b) => -1 * a.timestampCreated.compareTo(b.timestampCreated));
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var promises = Map<String, Future<UserPreview>>();
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for (var item in items) {
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if (userCache[item.subscriberUserID] == null && !promises.containsKey(item.subscriberUserID)) {
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promises[item.subscriberUserID] = APIClient.getUserPreview(acc, item.subscriberUserID).then((p) => userCache[p.userID] = p);
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}
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if (userCache[item.channelOwnerUserID] == null && !promises.containsKey(item.channelOwnerUserID)) {
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promises[item.channelOwnerUserID] = APIClient.getUserPreview(acc, item.channelOwnerUserID).then((p) => userCache[p.userID] = p);
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}
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if (channelCache[item.channelID] == null && !promises.containsKey(item.channelID)) {
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channelCache[item.channelID] = await APIClient.getChannelPreview(acc, item.channelID).then((p) => channelCache[p.channelID] = p);
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}
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}
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await Future.wait(promises.values);
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_pagingController.value = PagingState(nextPageKey: null, itemList: items, error: null);
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} catch (exc, trace) {
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_pagingController.error = exc.toString();
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ApplicationLog.error('Failed to list subscriptions: ' + exc.toString(), trace: trace);
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}
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}
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@override
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Widget build(BuildContext context) {
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return SCNScaffold(
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title: "Subscriptions",
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showSearch: false,
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showShare: false,
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child: Padding(
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padding: EdgeInsets.fromLTRB(8, 4, 8, 4),
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child: RefreshIndicator(
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onRefresh: () => Future.sync(
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() => _pagingController.refresh(),
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),
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child: PagedListView<int, Subscription>(
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pagingController: _pagingController,
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builderDelegate: PagedChildBuilderDelegate<Subscription>(
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itemBuilder: (context, item, index) => SubscriptionListItem(item: item, userCache: userCache, channelCache: channelCache, needsReload: fullRefresh),
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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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void fullRefresh() {
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ApplicationLog.debug('SubscriptionListPage::fullRefresh');
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_pagingController.refresh();
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}
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}
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