78 lines
3.0 KiB
Dart
78 lines
3.0 KiB
Dart
import 'package:flutter_bloc/flutter_bloc.dart';
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import 'package:news/data/models/NewsModel.dart';
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import 'package:news/data/repositories/RelatedNews/relatedNewsRepository.dart';
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import 'package:news/utils/constant.dart';
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import 'package:news/utils/strings.dart';
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abstract class RelatedNewsState {}
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class RelatedNewsInitial extends RelatedNewsState {}
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class RelatedNewsFetchInProgress extends RelatedNewsState {}
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class RelatedNewsFetchSuccess extends RelatedNewsState {
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final List<NewsModel> relatedNews;
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final int totalRelatedNewsCount;
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final bool hasMoreFetchError;
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final bool hasMore;
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RelatedNewsFetchSuccess({required this.relatedNews, required this.totalRelatedNewsCount, required this.hasMoreFetchError, required this.hasMore});
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}
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class RelatedNewsFetchFailure extends RelatedNewsState {
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final String errorMessage;
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RelatedNewsFetchFailure(this.errorMessage);
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}
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class RelatedNewsCubit extends Cubit<RelatedNewsState> {
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final RelatedNewsRepository _relatedNewsRepository;
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RelatedNewsCubit(this._relatedNewsRepository) : super(RelatedNewsInitial());
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void getRelatedNews({required String langId, String? catId, String? subCatId}) async {
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try {
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emit(RelatedNewsFetchInProgress());
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final result = await _relatedNewsRepository.getRelatedNews(perPage: limitOfAPIData.toString(), offset: "0", langId: langId, catId: catId, subCatId: subCatId);
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emit(RelatedNewsFetchSuccess(
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relatedNews: result['RelatedNews'], totalRelatedNewsCount: result[TOTAL], hasMoreFetchError: false, hasMore: (result['RelatedNews'] as List<NewsModel>).length < result[TOTAL]));
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} catch (e) {
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emit(RelatedNewsFetchFailure(e.toString()));
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}
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}
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bool hasMoreRelatedNews() {
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return (state is RelatedNewsFetchSuccess) ? (state as RelatedNewsFetchSuccess).hasMore : false;
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}
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void getMoreRelatedNews({required String langId, String? catId, String? subCatId, String? latitude, String? longitude}) async {
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if (state is RelatedNewsFetchSuccess) {
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try {
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final result = await _relatedNewsRepository.getRelatedNews(
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perPage: limitOfAPIData.toString(),
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offset: (state as RelatedNewsFetchSuccess).relatedNews.length.toString(),
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langId: langId,
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subCatId: subCatId,
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catId: catId,
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latitude: latitude,
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longitude: longitude);
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List<NewsModel> updatedResults = (state as RelatedNewsFetchSuccess).relatedNews;
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updatedResults.addAll(result['RelatedNews'] as List<NewsModel>);
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emit(RelatedNewsFetchSuccess(
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relatedNews: updatedResults,
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totalRelatedNewsCount: result[TOTAL],
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hasMoreFetchError: false,
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hasMore: updatedResults.length < result[TOTAL],
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));
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} catch (e) {
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emit(RelatedNewsFetchSuccess(
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relatedNews: (state as RelatedNewsFetchSuccess).relatedNews,
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hasMoreFetchError: true,
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totalRelatedNewsCount: (state as RelatedNewsFetchSuccess).totalRelatedNewsCount,
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hasMore: (state as RelatedNewsFetchSuccess).hasMore,
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));
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}
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}
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}
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}
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