feat/hashtagsandusertags/posts

lib/common/models/post.dart

@@ -6,13 +6,19 @@ class Post {
   final String caption;
   final List<String> mediaUrls;
   final DateTime postTimestamp;
+  final List<String> tags;
+  final List<String> hashtags;
+  final List<String> userTags;
 
   Post({
     required this.id,
     required this.userId,
     required this.caption,
     this.mediaUrls = const [],
     required this.postTimestamp,
+    this.tags = const [],
+    this.hashtags = const [],
+    this.userTags = const [],
   });
 
   factory Post.fromJson(Map<String, dynamic> json) {
@@ -26,6 +32,15 @@ class Post {
       postTimestamp: json['postTimestamp'] != null
           ? DateTime.parse(json['postTimestamp'].toString())
           : DateTime.now(),
+      tags: (json['tags'] == null)
+          ? <String>[]
+          : (json['tags'] as List).map((e) => e as String).toList(),
+      hashtags: (json['hashtags'] == null)
+          ? <String>[]
+          : (json['hashtags'] as List).map((e) => e as String).toList(),
+      userTags: (json['userTags'] == null)
+          ? <String>[]
+          : (json['userTags'] as List).map((e) => e as String).toList(),
     );
   }
 
@@ -36,6 +51,9 @@ class Post {
       'caption': caption,
       'mediaUrls': mediaUrls,
       'postTimestamp': postTimestamp.toString(),
+      'tags': tags,
+      'hashtags': hashtags,
+      'userTags': userTags,
     };
   }
 
@@ -45,13 +63,19 @@ class Post {
     String? caption,
     List<String>? mediaUrls,
     DateTime? postTimestamp,
+    List<String>? tags,
+    List<String>? hashtags,
+    List<String>? userTags,
   }) {
     return Post(
       id: id ?? this.id,
       userId: userId ?? this.userId,
       caption: caption ?? this.caption,
       mediaUrls: mediaUrls ?? this.mediaUrls,
       postTimestamp: postTimestamp ?? this.postTimestamp,
+      tags: tags ?? this.tags,
+      hashtags: hashtags ?? this.hashtags,
+      userTags: userTags ?? this.userTags,
     );
   }
 }

lib/data/repositories/post/post_repository.dart

@@ -37,13 +37,17 @@ class PostRepository extends PostRepositoryImpl {
     required ObjectId userId,
     required String caption,
     List<String>? mediaUrls,
+    List<String>? hashTags,
+    List<String>? userTags,
   }) async {
     final post = Post(
       id: ObjectId(),
       userId: userId,
       caption: caption,
       mediaUrls: mediaUrls ?? [],
       postTimestamp: DateTime.now(),
+      hashtags: hashTags ?? [],
+      userTags: userTags ?? [],
     );
 
     await _postsCollection.insert(post.toJson());

lib/data/request_handlers/post.dart

@@ -1,4 +1,5 @@
 import 'package:cats_backend/common/common.dart';
+import 'package:cats_backend/helpers/extract_tags.dart';
 import 'package:dart_frog/dart_frog.dart';
 import 'package:mongo_dart/mongo_dart.dart';
 
@@ -11,9 +12,11 @@ abstract class PostRequestHandler {
     required User saint,
     required FormData formData,
   });
+
   Future<Response> handleGetPostById({
     required ObjectId postId,
   });
+
   Future<Response> handleGetPostsByUserId({
     required ObjectId userId,
   });
@@ -42,6 +45,10 @@ class PostRequestHandlerImpl implements PostRequestHandler {
         statusCode: 400,
       );
     }
+    final hashTags = extractHashtags(caption);
+    final userTags = extractUserTags(caption);
+    printGreen('===>HashTags: $hashTags');
+    printGreen('===>userTags: $userTags');
 
     /// Check if there is image in the form data
 
@@ -81,6 +88,8 @@ class PostRequestHandlerImpl implements PostRequestHandler {
       userId: saint.$_id,
       caption: caption,
       mediaUrls: mediaUrls,
+      hashTags: hashTags,
+      userTags: userTags,
     );
 
     return Response.json(

lib/helpers/extract_tags.dart

@@ -0,0 +1,14 @@
+List<String> extractHashtags(String caption) {
+  final hashtagRegExp = RegExp(r'\B#\w\w+');
+  return hashtagRegExp
+      .allMatches(caption)
+      .map((match) => match.group(0)!.substring(1))
+      .toList();
+}
+List<String> extractUserTags(String caption) {
+  final userTagRegExp = RegExp(r'\B@\w+');
+  return userTagRegExp
+      .allMatches(caption)
+      .map((match) => match.group(0)!.substring(1))
+      .toList();
+}