wesal/frontend/lib/screens/pages/post_view_page.dart
2025-07-27 13:14:42 +03:00

657 lines
20 KiB
Dart

import 'package:flutter/material.dart';
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;
const PostViewPage({Key? key, required this.postId}) : super(key: key);
@override
_PostViewPageState createState() => _PostViewPageState();
}
class _PostViewPageState extends State<PostViewPage> {
bool _isLoading = true;
DetailedPost? _post;
String _errorMessage = '';
bool _isLiking = false;
@override
void initState() {
super.initState();
_loadPost();
}
Future<void> _loadPost() async {
setState(() {
_isLoading = true;
_errorMessage = '';
});
try {
final result = await PostService.getPost(widget.postId);
setState(() {
if (result['success']) {
_post = result['post'];
} else {
_errorMessage = result['message'] ?? 'Failed to load post';
}
_isLoading = false;
});
} catch (e) {
setState(() {
_errorMessage = 'Network error: $e';
_isLoading = false;
});
}
}
Color _getAvatarColor(String displayName) {
final colors = [
Color(0xFF32B0A5),
Color(0xFF4600B9),
Color(0xFF6A4C93),
Color(0xFFFF6347),
Color(0xFF32CD32),
Color(0xFF9932CC),
];
int hash = displayName.hashCode;
return colors[hash.abs() % colors.length];
}
String _getAvatarLetter(String displayName) {
return displayName.isNotEmpty ? displayName[0].toUpperCase() : '?';
}
void _sharePost(DetailedPost post) {
final shareText =
'${post.creator.displayName} posted on Wesal.online:\n\n${post.body}';
Share.share(shareText);
}
Future<void> _toggleLike() async {
if (_isLiking || _post == null) return;
setState(() {
_isLiking = true;
});
try {
Map<String, dynamic> result;
if (_post!.liked) {
result = await PostService.unlikePost(_post!.id);
} else {
result = await PostService.likePost(_post!.id);
}
if (result['success']) {
await _loadPost(); // Reload to get updated data
} else {
if (mounted) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text(result['message'] ?? 'Failed to update like'),
backgroundColor: Colors.red,
),
);
}
}
} catch (e) {
if (mounted) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text('Network error occurred'),
backgroundColor: Colors.red,
),
);
}
} finally {
setState(() {
_isLiking = false;
});
}
}
Widget _buildLikedBySection() {
if (_post == null || _post!.likes == 0) return SizedBox.shrink();
final displayUsers = _post!.likedUsers.take(3).toList();
return Container(
margin: EdgeInsets.symmetric(horizontal: 16),
child: GestureDetector(
onTap: _showLikedUsers,
child: Container(
padding: EdgeInsets.symmetric(horizontal: 16, vertical: 12),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(12),
boxShadow: [
BoxShadow(
color: Colors.black.withOpacity(0.05),
blurRadius: 10,
offset: Offset(0, 2),
),
],
),
child: Row(
children: [
// Show up to 3 avatars
...displayUsers.asMap().entries.map((entry) {
final index = entry.key;
final user = entry.value;
final avatarColor = _getAvatarColor(user.displayName);
final avatarLetter = _getAvatarLetter(user.displayName);
return Transform.translate(
offset: Offset(
index < displayUsers.length - 1 ? -8 : 0,
0,
),
child: CircleAvatar(
radius: 16,
backgroundColor: Colors.white,
child: CircleAvatar(
radius: 14,
backgroundColor: avatarColor,
child: Text(
avatarLetter,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: 12,
),
),
),
),
);
}).toList(),
SizedBox(width: 12),
Expanded(
child: Text(
_post!.likes == 1
? 'Liked by ${_post!.likedUsers.first.displayName}'
: _post!.likes == 2
? 'Liked by ${_post!.likedUsers[0].displayName} and ${_post!.likedUsers[1].displayName}'
: 'Liked by ${_post!.likedUsers[0].displayName}, ${_post!.likedUsers[1].displayName} and ${_post!.likes - 2} others',
style: TextStyle(color: Colors.grey[700], fontSize: 14),
),
),
Text(
'See all',
style: TextStyle(
color: Color(0xFF6A4C93),
fontSize: 14,
fontWeight: FontWeight.w500,
),
),
SizedBox(width: 4),
Icon(Icons.arrow_forward_ios, size: 12, color: Color(0xFF6A4C93)),
],
),
),
),
);
}
void _showLikedUsers() {
if (_post == null || _post!.likedUsers.isEmpty) return;
showModalBottomSheet(
context: context,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.vertical(top: Radius.circular(20)),
),
builder: (context) => Container(
padding: EdgeInsets.all(16),
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
Container(
width: 50,
height: 4,
decoration: BoxDecoration(
color: Colors.grey[300],
borderRadius: BorderRadius.circular(2),
),
),
SizedBox(height: 16),
Text(
'Liked by',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.w600,
color: Colors.black87,
),
),
SizedBox(height: 16),
Flexible(
child: ListView.builder(
shrinkWrap: true,
itemCount: _post!.likedUsers.length,
itemBuilder: (context, index) {
final user = _post!.likedUsers[index];
final avatarColor = _getAvatarColor(user.displayName);
final avatarLetter = _getAvatarLetter(user.displayName);
final relativeTime = InvitationUtils.getRelativeTime(
user.likeTime,
);
return ListTile(
leading: CircleAvatar(
radius: 20,
backgroundColor: avatarColor,
child: Text(
avatarLetter,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
),
),
),
title: Text(
user.displayName,
style: TextStyle(
fontWeight: FontWeight.w500,
fontSize: 16,
),
),
subtitle: Text(
relativeTime,
style: TextStyle(color: Colors.grey[600], fontSize: 12),
),
);
},
),
),
SizedBox(height: 16),
],
),
),
);
}
Widget _buildMockComments() {
return Container(
margin: EdgeInsets.symmetric(horizontal: 16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
'Comments',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.w600,
color: Colors.black87,
),
),
SizedBox(height: 16),
_buildComment(
'Ahmed Ali',
'Great post! This is exactly what I was thinking about.',
'2h',
false,
),
_buildComment(
'Sara Ahmed',
'Thanks for sharing this. Very insightful!',
'1h',
false,
),
_buildComment(
'Mohamed Hassan',
'I completely agree with your point here.',
'45m',
true,
replyTo: 'Sara Ahmed',
),
],
),
);
}
Widget _buildComment(
String name,
String comment,
String time,
bool isReply, {
String? replyTo,
}) {
final avatarColor = _getAvatarColor(name);
final avatarLetter = _getAvatarLetter(name);
return Container(
margin: EdgeInsets.only(bottom: 16, left: isReply ? 40 : 0),
child: Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
CircleAvatar(
radius: isReply ? 16 : 20,
backgroundColor: avatarColor,
child: Text(
avatarLetter,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: isReply ? 12 : 14,
),
),
),
SizedBox(width: 12),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
Text(
name,
style: TextStyle(
fontWeight: FontWeight.w600,
fontSize: 14,
color: Colors.black87,
),
),
SizedBox(width: 8),
Text(
time,
style: TextStyle(color: Colors.grey[600], fontSize: 12),
),
],
),
if (replyTo != null) ...[
SizedBox(height: 4),
Text.rich(
TextSpan(
children: [
TextSpan(
text: 'Replying to ',
style: TextStyle(
color: Colors.grey[600],
fontSize: 12,
),
),
TextSpan(
text: '@$replyTo',
style: TextStyle(
color: Color(0xFF6A4C93),
fontSize: 12,
fontWeight: FontWeight.w500,
),
),
],
),
),
],
SizedBox(height: 4),
Text(
comment,
style: TextStyle(
fontSize: 14,
height: 1.4,
color: Colors.black87,
),
),
SizedBox(height: 8),
Row(
children: [
TextButton(
onPressed: () {},
style: TextButton.styleFrom(
padding: EdgeInsets.zero,
minimumSize: Size.zero,
tapTargetSize: MaterialTapTargetSize.shrinkWrap,
),
child: Text(
'Like',
style: TextStyle(color: Colors.grey[600], fontSize: 12),
),
),
SizedBox(width: 16),
TextButton(
onPressed: () {},
style: TextButton.styleFrom(
padding: EdgeInsets.zero,
minimumSize: Size.zero,
tapTargetSize: MaterialTapTargetSize.shrinkWrap,
),
child: Text(
'Reply',
style: TextStyle(color: Colors.grey[600], fontSize: 12),
),
),
],
),
],
),
),
],
),
);
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
backgroundColor: Colors.white,
elevation: 0,
leading: IconButton(
onPressed: () => Navigator.pop(context),
icon: Icon(Icons.arrow_back, color: Colors.black87),
),
title: Text(
'Post',
style: TextStyle(
color: Colors.black87,
fontSize: 18,
fontWeight: FontWeight.w600,
),
),
),
backgroundColor: Color(0xFFF5F5F5),
body: _buildBody(),
);
}
Widget _buildBody() {
if (_isLoading) {
return Center(
child: CircularProgressIndicator(
valueColor: AlwaysStoppedAnimation<Color>(Color(0xFF6A4C93)),
),
);
}
if (_errorMessage.isNotEmpty) {
return Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(Icons.error_outline, size: 64, color: Colors.grey[400]),
SizedBox(height: 16),
Text(
_errorMessage,
style: TextStyle(fontSize: 16, color: Colors.grey[600]),
textAlign: TextAlign.center,
),
SizedBox(height: 16),
ElevatedButton(
onPressed: _loadPost,
style: ElevatedButton.styleFrom(
backgroundColor: Color(0xFF6A4C93),
foregroundColor: Colors.white,
),
child: Text('Try Again'),
),
],
),
);
}
if (_post == null) {
return Center(child: Text('Post not found'));
}
final creator = _post!.creator;
final avatarColor = _getAvatarColor(creator.displayName);
final avatarLetter = _getAvatarLetter(creator.displayName);
final relativeTime = InvitationUtils.getRelativeTime(_post!.creationDate);
return SingleChildScrollView(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Container(
margin: EdgeInsets.all(16),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(12),
boxShadow: [
BoxShadow(
color: Colors.black.withOpacity(0.05),
blurRadius: 10,
offset: Offset(0, 2),
),
],
),
child: Padding(
padding: EdgeInsets.all(16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
CircleAvatar(
radius: 24,
backgroundColor: avatarColor,
child: Text(
avatarLetter,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: 18,
),
),
),
SizedBox(width: 12),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
creator.displayName,
style: TextStyle(
fontWeight: FontWeight.w600,
fontSize: 18,
color: Colors.black87,
),
),
SizedBox(height: 2),
Text(
relativeTime,
style: TextStyle(
color: Colors.grey[600],
fontSize: 14,
),
),
],
),
),
IconButton(
onPressed: () => _sharePost(_post!),
icon: Icon(
Icons.share_outlined,
color: Colors.grey[600],
),
),
],
),
SizedBox(height: 16),
Text(
_post!.body,
style: TextStyle(
fontSize: 16,
height: 1.5,
color: Colors.black87,
),
),
SizedBox(height: 20),
Row(
children: [
IconButton(
onPressed: _isLiking ? null : _toggleLike,
icon: _isLiking
? SizedBox(
width: 24,
height: 24,
child: CircularProgressIndicator(
strokeWidth: 2,
valueColor: AlwaysStoppedAnimation<Color>(
_post!.liked
? Colors.red
: Colors.grey[600]!,
),
),
)
: Icon(
_post!.liked
? Icons.favorite
: Icons.favorite_border,
color: _post!.liked
? Colors.red
: Colors.grey[600],
size: 28,
),
),
Text(
'${_post!.likes}',
style: TextStyle(
color: Colors.grey[700],
fontWeight: FontWeight.w500,
fontSize: 16,
),
),
SizedBox(width: 20),
Icon(
Icons.chat_bubble_outline,
color: Colors.grey[600],
size: 28,
),
SizedBox(width: 8),
Text(
'${_post!.comments}',
style: TextStyle(
color: Colors.grey[700],
fontWeight: FontWeight.w500,
fontSize: 16,
),
),
],
),
],
),
),
),
SizedBox(height: 8),
_buildLikedBySection(),
SizedBox(height: 16),
Container(
height: 400,
child: CommentsWidget(
postId: widget.postId,
commentCount: _post?.comments ?? 0,
),
),
SizedBox(height: 24),
],
),
);
}
}