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Merge pull request #9 from sBubshait/feature/post-comments

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feat: commenting on posts
This commit is contained in:
Saleh Bubshait 2025-07-27 13:16:50 +03:00 committed by GitHub
commit e460cca64e
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GPG Key ID: B5690EEEBB952194
4 changed files with 760 additions and 4 deletions
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109
frontend/lib/models/comment_models.dart Normal file
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@ -0,0 +1,109 @@
class CommentUser {
final String id;
final String displayName;
CommentUser({
required this.id,
required this.displayName,
});
factory CommentUser.fromJson(Map<String, dynamic> json) {
return CommentUser(
id: json['id'].toString(),
displayName: json['displayName'] ?? '',
);
}
Map<String, dynamic> toJson() {
return {
'id': id,
'displayName': displayName,
};
}
}
class Comment {
final String id;
final String postId;
final CommentUser creator;
final String body;
final DateTime creationDate;
final String? replyComment;
final String? displayReplyComment;
final CommentUser? replyUser;
final int level;
final List<Comment> replies;
Comment({
required this.id,
required this.postId,
required this.creator,
required this.body,
required this.creationDate,
this.replyComment,
this.displayReplyComment,
this.replyUser,
required this.level,
required this.replies,
});
factory Comment.fromJson(Map<String, dynamic> json) {
return Comment(
id: json['id'].toString(),
postId: json['postId'].toString(),
creator: CommentUser.fromJson(json['creator']),
body: json['body'] ?? '',
creationDate: DateTime.parse(json['creationDate']),
replyComment: json['replyComment']?.toString(),
displayReplyComment: json['displayReplyComment']?.toString(),
replyUser: json['replyUser'] != null ? CommentUser.fromJson(json['replyUser']) : null,
level: json['level'] ?? 1,
replies: (json['replies'] as List?)?.map((reply) => Comment.fromJson(reply)).toList() ?? [],
);
}
Map<String, dynamic> toJson() {
return {
'id': id,
'postId': postId,
'creator': creator.toJson(),
'body': body,
'creationDate': creationDate.toIso8601String(),
'replyComment': replyComment,
'displayReplyComment': displayReplyComment,
'replyUser': replyUser?.toJson(),
'level': level,
'replies': replies.map((reply) => reply.toJson()).toList(),
};
}
}
class CommentsResponse {
final bool status;
final String? message;
final List<Comment> data;
CommentsResponse({
required this.status,
this.message,
required this.data,
});
factory CommentsResponse.fromJson(Map<String, dynamic> json) {
return CommentsResponse(
status: json['status'] ?? false,
message: json['message'],
data: json['data'] != null
? (json['data'] as List).map((comment) => Comment.fromJson(comment)).toList()
: [],
);
}
Map<String, dynamic> toJson() {
return {
'status': status,
'message': message,
'data': data.map((comment) => comment.toJson()).toList(),
};
}
}

16
frontend/lib/screens/pages/post_view_page.dart
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@ -3,6 +3,7 @@ import 'package:share_plus/share_plus.dart';
import '../../models/post_models.dart';
import '../../services/post_service.dart';
import '../../utils/invitation_utils.dart';
import '../../widgets/comments_widget.dart';
class PostViewPage extends StatefulWidget {
final String postId;
@ -147,9 +148,10 @@ class _PostViewPageState extends State<PostViewPage> {
final avatarColor = _getAvatarColor(user.displayName);
final avatarLetter = _getAvatarLetter(user.displayName);
return Container(
margin: EdgeInsets.only(
right: index < displayUsers.length - 1 ? -8 : 0,
return Transform.translate(
offset: Offset(
index < displayUsers.length - 1 ? -8 : 0,
0,
),
child: CircleAvatar(
radius: 16,
@ -639,7 +641,13 @@ class _PostViewPageState extends State<PostViewPage> {
SizedBox(height: 8),
_buildLikedBySection(),
SizedBox(height: 16),
_buildMockComments(),
Container(
height: 400,
child: CommentsWidget(
postId: widget.postId,
commentCount: _post?.comments ?? 0,
),
),
SizedBox(height: 24),
],
),

114
frontend/lib/services/post_service.dart
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@ -1,5 +1,6 @@
import 'dart:convert';
import '../models/post_models.dart';
import '../models/comment_models.dart';
import 'http_service.dart';
import 'auth_service.dart';
@ -198,4 +199,117 @@ class PostService {
return {'success': false, 'message': 'Network error: $e', 'post': null};
}
}
static Future<Map<String, dynamic>> getComments(String postId) async {
try {
final response = await HttpService.get('/posts/comments/list?postId=$postId');
if (response.statusCode == 200) {
final responseData = jsonDecode(response.body);
final commentsResponse = CommentsResponse.fromJson(responseData);
if (commentsResponse.status) {
return {
'success': true,
'comments': commentsResponse.data,
};
} else {
return {
'success': false,
'message': commentsResponse.message ?? 'Failed to fetch comments',
'comments': <Comment>[],
};
}
} else if (response.statusCode == 401 || response.statusCode == 403) {
await AuthService.handleAuthenticationError();
return {
'success': false,
'message': 'Session expired. Please login again.',
'comments': <Comment>[],
};
} else {
try {
final responseData = jsonDecode(response.body);
return {
'success': false,
'message': responseData['message'] ?? 'Failed to fetch comments',
'comments': <Comment>[],
};
} catch (e) {
return {
'success': false,
'message': 'Server error (${response.statusCode})',
'comments': <Comment>[],
};
}
}
} catch (e) {
print('Error fetching comments: $e');
return {
'success': false,
'message': 'Network error: $e',
'comments': <Comment>[],
};
}
}
static Future<Map<String, dynamic>> createComment({
required String postId,
required String body,
String? replyComment,
}) async {
try {
final requestBody = {
'postId': int.parse(postId),
'body': body,
};
if (replyComment != null) {
requestBody['replyComment'] = int.parse(replyComment);
}
final response = await HttpService.post('/posts/comments/create', requestBody);
if (response.statusCode == 200 || response.statusCode == 201) {
final responseData = jsonDecode(response.body);
if (responseData['status'] == true) {
return {
'success': true,
'comment': Comment.fromJson(responseData['data']),
};
} else {
return {
'success': false,
'message': responseData['message'] ?? 'Failed to create comment',
};
}
} else if (response.statusCode == 401 || response.statusCode == 403) {
await AuthService.handleAuthenticationError();
return {
'success': false,
'message': 'Session expired. Please login again.',
};
} else {
try {
final responseData = jsonDecode(response.body);
return {
'success': false,
'message': responseData['message'] ?? 'Failed to create comment',
};
} catch (e) {
return {
'success': false,
'message': 'Server error (${response.statusCode})',
};
}
}
} catch (e) {
print('Error creating comment: $e');
return {
'success': false,
'message': 'Network error: $e',
};
}
}
}

525
frontend/lib/widgets/comments_widget.dart Normal file
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@ -0,0 +1,525 @@
import 'package:flutter/material.dart';
import '../models/comment_models.dart';
import '../services/post_service.dart';
class CommentsWidget extends StatefulWidget {
final String postId;
final int commentCount;
const CommentsWidget({
Key? key,
required this.postId,
required this.commentCount,
}) : super(key: key);
@override
_CommentsWidgetState createState() => _CommentsWidgetState();
}
class _CommentsWidgetState extends State<CommentsWidget> {
List<Comment> comments = [];
bool isLoading = true;
String? errorMessage;
final TextEditingController _commentController = TextEditingController();
bool _isCreatingComment = false;
Comment? _replyingTo;
@override
void initState() {
super.initState();
_loadComments();
}
@override
void dispose() {
_commentController.dispose();
super.dispose();
}
Future<void> _loadComments() async {
setState(() {
isLoading = true;
errorMessage = null;
});
final result = await PostService.getComments(widget.postId);
setState(() {
isLoading = false;
if (result['success'] == true) {
comments = result['comments'] as List<Comment>;
} else {
errorMessage = result['message'] ?? 'Failed to load comments';
comments = [];
}
});
}
void _setReplyingTo(Comment? comment) {
setState(() {
_replyingTo = comment;
if (comment == null) {
_commentController.clear();
}
});
}
Future<void> _createComment() async {
final body = _commentController.text.trim();
if (body.isEmpty || _isCreatingComment) return;
setState(() {
_isCreatingComment = true;
});
try {
final result = await PostService.createComment(
postId: widget.postId,
body: body,
replyComment: _replyingTo?.id,
);
if (result['success'] == true) {
_commentController.clear();
_setReplyingTo(null);
await _loadComments(); // Reload comments to show the new one
} else {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text(result['message'] ?? 'Failed to create comment'),
backgroundColor: Colors.red,
),
);
}
} catch (e) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text('Network error occurred'),
backgroundColor: Colors.red,
),
);
} finally {
setState(() {
_isCreatingComment = false;
});
}
}
String _formatTimeAgo(DateTime dateTime) {
final now = DateTime.now();
final difference = now.difference(dateTime);
if (difference.inDays > 0) {
return '${difference.inDays}d ago';
} else if (difference.inHours > 0) {
return '${difference.inHours}h ago';
} else if (difference.inMinutes > 0) {
return '${difference.inMinutes}m ago';
} else {
return 'Just now';
}
}
Widget _buildComment(Comment comment, {double leftPadding = 0}) {
final safePadding = leftPadding < 0 ? 0.0 : leftPadding;
return Container(
margin: EdgeInsets.only(left: safePadding, bottom: 12),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
// Avatar
CircleAvatar(
radius: 16,
backgroundColor: Color(0xFF6A4C93),
child: Text(
comment.creator.displayName.isNotEmpty
? comment.creator.displayName[0].toUpperCase()
: 'U',
style: TextStyle(
color: Colors.white,
fontSize: 12,
fontWeight: FontWeight.bold,
),
),
),
SizedBox(width: 8),
// Comment content
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
// Header with name and time
Row(
children: [
Text(
comment.creator.displayName,
style: TextStyle(
fontWeight: FontWeight.w600,
fontSize: 14,
color: Colors.black87,
),
),
SizedBox(width: 8),
Text(
_formatTimeAgo(comment.creationDate),
style: TextStyle(
fontSize: 12,
color: Colors.grey[600],
),
),
],
),
SizedBox(height: 4),
// Reply indicator if this is a reply
if (comment.replyUser != null) ...[
Container(
padding: EdgeInsets.symmetric(
horizontal: 8,
vertical: 2,
),
decoration: BoxDecoration(
color: Colors.grey[100],
borderRadius: BorderRadius.circular(12),
),
child: Text(
'Replying to ${comment.replyUser!.displayName}',
style: TextStyle(
fontSize: 11,
color: Colors.grey[600],
fontStyle: FontStyle.italic,
),
),
),
SizedBox(height: 6),
],
// Comment body
Text(
comment.body,
style: TextStyle(
fontSize: 14,
color: Colors.black87,
height: 1.3,
),
),
SizedBox(height: 8),
// Reply button
InkWell(
onTap: () => _setReplyingTo(comment),
child: Text(
'Reply',
style: TextStyle(
fontSize: 12,
color: Color(0xFF6A4C93),
fontWeight: FontWeight.w500,
),
),
),
],
),
),
],
),
// Replies
if (comment.replies.isNotEmpty) ...[
SizedBox(height: 12),
...comment.replies.map(
(reply) => _buildComment(reply, leftPadding: safePadding + 24),
),
],
],
),
);
}
Widget _buildErrorState() {
return Container(
padding: EdgeInsets.all(32),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(Icons.error_outline, size: 64, color: Colors.grey[400]),
SizedBox(height: 16),
Text(
'Failed to load comments',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.w600,
color: Colors.grey[700],
),
),
SizedBox(height: 8),
Text(
errorMessage ?? 'Unknown error occurred',
textAlign: TextAlign.center,
style: TextStyle(fontSize: 14, color: Colors.grey[600]),
),
SizedBox(height: 16),
ElevatedButton.icon(
onPressed: _loadComments,
icon: Icon(Icons.refresh),
label: Text('Retry'),
style: ElevatedButton.styleFrom(
backgroundColor: Color(0xFF6A4C93),
foregroundColor: Colors.white,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(8),
),
),
),
],
),
);
}
Widget _buildEmptyState() {
return Container(
padding: EdgeInsets.all(32),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(Icons.chat_bubble_outline, size: 64, color: Colors.grey[400]),
SizedBox(height: 16),
Text(
'No comments yet',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.w600,
color: Colors.grey[700],
),
),
SizedBox(height: 8),
Text(
'Be the first to share your thoughts!',
style: TextStyle(fontSize: 14, color: Colors.grey[600]),
),
],
),
);
}
@override
Widget build(BuildContext context) {
return Container(
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.vertical(top: Radius.circular(16)),
),
child: Column(
children: [
// Header
Container(
padding: EdgeInsets.all(16),
decoration: BoxDecoration(
border: Border(bottom: BorderSide(color: Colors.grey[200]!)),
),
child: Row(
children: [
Text(
'Comments',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.w600,
color: Colors.black87,
),
),
if (widget.commentCount > 0) ...[
SizedBox(width: 8),
Container(
padding: EdgeInsets.symmetric(horizontal: 8, vertical: 2),
decoration: BoxDecoration(
color: Color(0xFF6A4C93).withOpacity(0.1),
borderRadius: BorderRadius.circular(12),
),
child: Text(
'${widget.commentCount}',
style: TextStyle(
fontSize: 12,
color: Color(0xFF6A4C93),
fontWeight: FontWeight.w600,
),
),
),
],
Spacer(),
if (isLoading)
SizedBox(
width: 16,
height: 16,
child: CircularProgressIndicator(
strokeWidth: 2,
valueColor: AlwaysStoppedAnimation<Color>(
Color(0xFF6A4C93),
),
),
),
],
),
),
// Content
Expanded(
child: isLoading
? Center(
child: CircularProgressIndicator(
valueColor: AlwaysStoppedAnimation<Color>(
Color(0xFF6A4C93),
),
),
)
: errorMessage != null
? _buildErrorState()
: comments.isEmpty
? _buildEmptyState()
: ListView.builder(
padding: EdgeInsets.only(left: 16, right: 16, top: 16),
itemCount: comments.length,
itemBuilder: (context, index) =>
_buildComment(comments[index]),
),
),
// Comment input section
Container(
decoration: BoxDecoration(
color: Colors.white,
border: Border(top: BorderSide(color: Colors.grey[200]!)),
),
padding: EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
// Reply indicator
if (_replyingTo != null) ...[
Container(
padding: EdgeInsets.symmetric(horizontal: 12, vertical: 8),
decoration: BoxDecoration(
color: Color(0xFF6A4C93).withOpacity(0.1),
borderRadius: BorderRadius.circular(8),
),
child: Row(
children: [
Icon(Icons.reply, size: 16, color: Color(0xFF6A4C93)),
SizedBox(width: 8),
Expanded(
child: Text(
'Replying to ${_replyingTo!.creator.displayName}',
style: TextStyle(
fontSize: 12,
color: Color(0xFF6A4C93),
fontWeight: FontWeight.w500,
),
),
),
IconButton(
onPressed: () => _setReplyingTo(null),
icon: Icon(
Icons.close,
size: 16,
color: Color(0xFF6A4C93),
),
constraints: BoxConstraints(
minWidth: 24,
minHeight: 24,
),
padding: EdgeInsets.zero,
),
],
),
),
SizedBox(height: 12),
],
// Comment input
Row(
children: [
CircleAvatar(
radius: 16,
backgroundColor: Color(0xFF6A4C93),
child: Text(
'U', // TODO: Use actual user initial
style: TextStyle(
color: Colors.white,
fontSize: 12,
fontWeight: FontWeight.bold,
),
),
),
SizedBox(width: 12),
Expanded(
child: Container(
decoration: BoxDecoration(
color: Colors.grey[50],
borderRadius: BorderRadius.circular(20),
border: Border.all(color: Colors.grey[300]!),
),
child: Row(
children: [
Expanded(
child: TextField(
controller: _commentController,
decoration: InputDecoration(
hintText: _replyingTo != null
? 'Reply to ${_replyingTo!.creator.displayName}...'
: 'Write a comment...',
border: InputBorder.none,
contentPadding: EdgeInsets.symmetric(
horizontal: 16,
vertical: 10,
),
hintStyle: TextStyle(
fontSize: 14,
color: Colors.grey[600],
),
),
maxLines: null,
textCapitalization:
TextCapitalization.sentences,
),
),
if (_isCreatingComment)
Container(
margin: EdgeInsets.only(right: 8),
width: 24,
height: 24,
child: CircularProgressIndicator(
strokeWidth: 2,
valueColor: AlwaysStoppedAnimation<Color>(
Color(0xFF6A4C93),
),
),
)
else
IconButton(
onPressed: _createComment,
icon: Icon(
Icons.send,
color: Color(0xFF6A4C93),
size: 20,
),
constraints: BoxConstraints(
minWidth: 36,
minHeight: 36,
),
),
],
),
),
),
],
),
],
),
),
],
),
);
}
}