elCaribe app - customization and branding

news-app/lib/cubits/commentNewsCubit.dart

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+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:news/data/models/CommentModel.dart';
+import 'package:news/data/repositories/CommentNews/commNewsRepository.dart';
+import 'package:news/utils/constant.dart';
+import 'package:news/utils/strings.dart';
+
+abstract class CommentNewsState {}
+
+class CommentNewsInitial extends CommentNewsState {}
+
+class CommentNewsFetchInProgress extends CommentNewsState {}
+
+class CommentNewsFetchSuccess extends CommentNewsState {
+  final List<CommentModel> commentNews;
+  final int totalCommentNewsCount;
+  final bool hasMoreFetchError;
+  final bool hasMore;
+
+  CommentNewsFetchSuccess({required this.commentNews, required this.totalCommentNewsCount, required this.hasMoreFetchError, required this.hasMore});
+  CommentNewsFetchSuccess copyWith({List<CommentModel>? commentNews, int? totalCommentNewsCount, bool? hasMoreFetchError, bool? hasMore}) {
+    return CommentNewsFetchSuccess(
+        commentNews: commentNews ?? this.commentNews,
+        totalCommentNewsCount: totalCommentNewsCount ?? this.totalCommentNewsCount,
+        hasMoreFetchError: hasMoreFetchError ?? this.hasMoreFetchError,
+        hasMore: hasMore ?? this.hasMore);
+  }
+}
+
+class CommentNewsFetchFailure extends CommentNewsState {
+  final String errorMessage;
+
+  CommentNewsFetchFailure(this.errorMessage);
+}
+
+class CommentNewsCubit extends Cubit<CommentNewsState> {
+  final CommentNewsRepository _commentNewsRepository;
+
+  CommentNewsCubit(this._commentNewsRepository) : super(CommentNewsInitial());
+
+  void getCommentNews({required String newsId}) async {
+    try {
+      emit(CommentNewsFetchInProgress());
+      final result = await _commentNewsRepository.getCommentNews(limit: limitOfAPIData.toString(), offset: "0", newsId: newsId);
+
+      (!result[ERROR])
+          ? emit(CommentNewsFetchSuccess(
+              commentNews: result['CommentNews'], totalCommentNewsCount: result[TOTAL], hasMoreFetchError: false, hasMore: ((result['CommentNews'] as List<CommentModel>).length) < result[TOTAL]))
+          : emit(CommentNewsFetchFailure(result[MESSAGE]));
+    } catch (e) {
+      emit(CommentNewsFetchFailure(e.toString()));
+    }
+  }
+
+  bool hasMoreCommentNews() {
+    return (state is CommentNewsFetchSuccess) ? (state as CommentNewsFetchSuccess).hasMore : false;
+  }
+
+  void getMoreCommentNews({required String newsId}) async {
+    if (state is CommentNewsFetchSuccess) {
+      try {
+        final result = await _commentNewsRepository.getCommentNews(limit: limitOfAPIData.toString(), newsId: newsId, offset: (state as CommentNewsFetchSuccess).commentNews.length.toString());
+        List<CommentModel> updatedResults = (state as CommentNewsFetchSuccess).commentNews;
+        updatedResults.addAll(result['CommentNews'] as List<CommentModel>);
+        emit(CommentNewsFetchSuccess(commentNews: updatedResults, totalCommentNewsCount: result[TOTAL], hasMoreFetchError: false, hasMore: updatedResults.length < result[TOTAL]));
+      } catch (e) {
+        emit(CommentNewsFetchSuccess(
+            commentNews: (state as CommentNewsFetchSuccess).commentNews,
+            hasMoreFetchError: true,
+            totalCommentNewsCount: (state as CommentNewsFetchSuccess).totalCommentNewsCount,
+            hasMore: (state as CommentNewsFetchSuccess).hasMore));
+      }
+    }
+  }
+
+  emitSuccessState(List<CommentModel> commments) {
+    emit((state as CommentNewsFetchSuccess).copyWith(commentNews: commments));
+  }
+
+  void commentUpdateList(List<CommentModel> commentList, int total) {
+    if (state is CommentNewsFetchSuccess || state is CommentNewsFetchFailure) {
+      bool haseMore = (state is CommentNewsFetchSuccess) ? (state as CommentNewsFetchSuccess).hasMore : false;
+      emit(CommentNewsFetchSuccess(commentNews: commentList, hasMore: haseMore, hasMoreFetchError: false, totalCommentNewsCount: total));
+    }
+  }
+
+  void deleteComment(int index) {
+    if (state is CommentNewsFetchSuccess) {
+      List<CommentModel> commentList = List.from((state as CommentNewsFetchSuccess).commentNews)..removeAt(index);
+
+      emit(CommentNewsFetchSuccess(
+          commentNews: commentList,
+          hasMore: (state as CommentNewsFetchSuccess).hasMore,
+          hasMoreFetchError: false,
+          totalCommentNewsCount: (state as CommentNewsFetchSuccess).totalCommentNewsCount - 1));
+    }
+  }
+
+  void deleteCommentReply(String commentId, int index) {
+    if (state is CommentNewsFetchSuccess) {
+      List<CommentModel> commentList = (state as CommentNewsFetchSuccess).commentNews;
+      commentList.forEach((element) {
+        if (element.id! == commentId) {
+          int commIndex = commentList.indexWhere((model) => model.id == commentId);
+          commentList[commIndex].replyComList!.removeAt(index);
+        }
+      });
+      emit(CommentNewsFetchSuccess(
+          commentNews: commentList, hasMore: (state as CommentNewsFetchSuccess).hasMore, hasMoreFetchError: false, totalCommentNewsCount: (state as CommentNewsFetchSuccess).totalCommentNewsCount));
+    }
+  }
+}