46 lines
1.3 KiB
Dart
46 lines
1.3 KiB
Dart
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import 'dart:convert';
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import 'package:flutter/foundation.dart';
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import 'package:riverpod_annotation/riverpod_annotation.dart';
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import '../data/repository/news_repository.dart';
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import '../data/models/region_news.dart';
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part 'news_controller.g.dart';
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/// The news controller
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@riverpod
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class NewsController extends _$NewsController {
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@override
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Future<RegionNews> build() async {
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try {
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final String newsResponse = await NewsRepository().fetchNews();
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final Map<String, dynamic> jsonData = json.decode(newsResponse);
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final RegionNews news = RegionNews.fromJson(jsonData);
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return news;
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} catch (e) {
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rethrow;
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}
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}
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/// Append the next page of news to the current news list
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Future<void> appendPage() async {
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try {
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final RegionNews currentNews =
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state.asData?.value ?? const RegionNews(news: []);
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final newsResponse =
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await NewsRepository().fetchNewsPage(currentNews.nextPage ?? 'null');
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final Map<String, dynamic> jsonData = jsonDecode(newsResponse);
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final RegionNews nextNews = RegionNews.fromJson(jsonData);
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final RegionNews appendNews =
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currentNews.copyWith(nextPage: nextNews.nextPage, news: [
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...currentNews.news,
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...nextNews.news,
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]);
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state = AsyncData(appendNews);
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} catch (e) {
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debugPrint(e.toString());
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}
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}
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}
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