98 lines
2.8 KiB
Dart
98 lines
2.8 KiB
Dart
import 'dart:convert';
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import 'package:flutter/material.dart';
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import 'package:go_router/go_router.dart';
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import 'package:infinite_scroll_pagination/infinite_scroll_pagination.dart';
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import 'package:solaragent/auth.dart';
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import 'package:solaragent/models/feed.dart';
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import 'package:solaragent/models/pagination.dart';
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import 'package:http/http.dart' as http;
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import 'package:solaragent/router.dart';
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import 'package:solaragent/widgets/feed.dart';
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import 'package:solaragent/screens/publish/moment_editor.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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static const pageSize = 5;
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final client = http.Client();
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final PagingController<int, Feed> paginationController =
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PagingController(firstPageKey: 0);
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List<Feed> feed = List.empty();
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@override
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void initState() {
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super.initState();
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paginationController.addPageRequestListener((pageKey) {
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pullFeed(pageKey);
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});
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}
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Future<void> pullFeed(int pageKey) async {
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var offset = pageKey;
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var take = pageSize;
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var uri =
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Uri.parse('https://co.solsynth.dev/api/feed?take=$take&offset=$offset');
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var res = await client.get(uri);
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if (res.statusCode == 200) {
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final result =
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PaginationResult.fromJson(jsonDecode(utf8.decode(res.bodyBytes)));
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final isLastPage = (result.count - pageKey) < pageSize;
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if (isLastPage || result.data == null) {
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paginationController.appendLastPage(feed);
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} else {
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final feed =
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result.data?.map((x) => Feed.fromJson(x)).toList() ?? List.empty();
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final nextPageKey = pageKey + feed.length;
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paginationController.appendPage(feed, nextPageKey);
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}
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} else {
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paginationController.error = utf8.decode(res.bodyBytes);
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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 Scaffold(
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body: PagedListView<int, Feed>(
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pagingController: paginationController,
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builderDelegate: PagedChildBuilderDelegate<Feed>(
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itemBuilder: (context, item, index) => FeedItem(
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item: item,
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),
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),
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),
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floatingActionButton: FutureBuilder(
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future: authClient.isAuthorized(),
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builder: (context, snapshot) {
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if (snapshot.hasData && snapshot.data == true) {
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return FloatingActionButton(
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child: const Icon(Icons.edit),
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onPressed: () {
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router.push("/post/moments");
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},
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);
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} else {
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return Container();
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}
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}),
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);
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}
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@override
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void dispose() {
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paginationController.dispose();
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super.dispose();
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}
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}
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