Update Like, ApiResponse

BE/pom.xml

@@ -40,7 +40,18 @@
             <groupId>org.neo4j.driver</groupId>
             <artifactId>neo4j-java-driver</artifactId>
         </dependency>
-
+        <dependency>
+            <groupId>org.neo4j</groupId>
+            <artifactId>neo4j-ogm-core</artifactId>
+            <version>4.0.10</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.neo4j</groupId>
+            <artifactId>neo4j-ogm-bolt-driver</artifactId>
+            <version>4.0.10</version>
+            <scope>runtime</scope>
+        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-devtools</artifactId>

BE/src/main/java/org/example/controllers/CategoryController.java

@@ -1,25 +0,0 @@
-package org.example.controllers;
-
-
-import org.example.models.Category;
-import org.example.services.CategoryService;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
-
-import java.util.List;
-
-@RestController
-@RequestMapping("/category")
-public class CategoryController {
-    private final CategoryService categoryService;
-
-    public CategoryController(CategoryService categoryService) {
-        this.categoryService = categoryService;
-    }
-
-    @GetMapping("/getAllCategories")
-    public List<Category> getAllCategories(){
-        return categoryService.getAllCategories();
-    }
-}

BE/src/main/java/org/example/controllers/InteractionController.java

@@ -1,39 +0,0 @@
-package org.example.controllers;
-
-import org.example.objects.CommentDTO;
-import org.example.objects.InteractionsDTO;
-import org.example.services.InteractService;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.http.HttpStatus;
-import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.*;
-
-@RestController
-@RequestMapping("/interactions")
-public class InteractionController {
-    private final InteractService interactionService;
-
-    @Autowired
-    public InteractionController(InteractService interactionService) {
-        this.interactionService = interactionService;
-    }
-
-    @PostMapping("/like")
-    public ResponseEntity<Void> likePost(@RequestBody InteractionsDTO interactionsDTO) {
-        interactionService.toggleLike(interactionsDTO.getUsername(), interactionsDTO.getPostId());
-        return new ResponseEntity<>(HttpStatus.OK);
-    }
-
-    @PostMapping("/comment")
-    public ResponseEntity<Void> commentPost(@RequestBody CommentDTO interactionsDTO) {
-        interactionService.commentPost(interactionsDTO.getUsername(), interactionsDTO.getPostId(), interactionsDTO.getContent());
-        return new ResponseEntity<>(HttpStatus.OK);
-    }
-
-    @PostMapping("/share")
-    public ResponseEntity<Void> sharePost(@RequestBody InteractionsDTO interactionsDTO) {
-        interactionService.sharePost(interactionsDTO.getUsername(), interactionsDTO.getPostId());
-        return new ResponseEntity<>(HttpStatus.OK);
-    }
-}
-

BE/src/main/java/org/example/controllers/PostController.java

@@ -1,15 +1,14 @@
 package org.example.controllers;
 
 //import org.example.models.Author;
-import org.example.models.*;
+import org.example.models.Image;
+import org.example.models.LikeRequest;
+import org.example.models.Post;
+import org.example.models.User;
 import org.example.objects.PostDTO;
-import org.example.objects.PostWithMedia;
-import org.example.repositories.CategoryRepository;
 import org.example.repositories.PostRepository;
 import org.example.services.PostService;
-import org.example.services.RecommendationService;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.data.repository.query.Param;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
@@ -24,15 +23,11 @@ public class PostController {
 
     private final PostService postService;
     private final PostRepository postRepository;
-    private final RecommendationService recommendationService;
-    private final CategoryRepository categoryRepository;
 
     @Autowired
-    public PostController(PostService postService, PostRepository postRepository, RecommendationService recommendationService, CategoryRepository categoryRepository) {
+    public PostController(PostService postService, PostRepository postRepository) {
         this.postService = postService;
         this.postRepository = postRepository;
-        this.recommendationService = recommendationService;
-        this.categoryRepository = categoryRepository;
     }
 
     @GetMapping("/getAllPosts")
@@ -47,23 +42,29 @@ public class PostController {
 
     @PostMapping("/edit/{id}")
     public Post updatePost(@PathVariable Long id,@RequestBody PostDTO postDTO) throws IOException {
-        return postService.editPost(id, postDTO.getTitle(), postDTO.getContent(),postDTO.getCategory(), postDTO.getImageFile(), postDTO.getVideoFile());
+        return postService.editPost(id, postDTO.getTitle(), postDTO.getContent(), postDTO.getImageFile(), postDTO.getVideoFile());
+    }
+    @PostMapping("/like")
+    public ResponseEntity<String> handleLikeAction(@RequestBody LikeRequest request){
+        try{
+            System.out.println(request.getUsername()+" "+request.getPostId());
+            postService.toggleLike(request.getUsername(),request.getPostId());
+            return ResponseEntity.ok("Success");
+        }
+        catch(Exception e){
+
+            return  ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body("Error:"+e.getMessage());
+        }
     }
     @PostMapping
     public Post createPost(
 
                             @RequestParam("title") String title,
                            @RequestParam("content") String content,
-                           @RequestParam("category") Category category,
                            @RequestParam(value = "imageFile", required = false) MultipartFile imageFile,
                            @RequestParam(value = "videoFile", required = false) MultipartFile videoFile) throws IOException {
 
-        return postService.createPost(title, content,category, imageFile, videoFile);
+        return postService.createPost(title, content, imageFile, videoFile);
     }
 
-    @GetMapping("/recommend/{username}")
-    public List<Post> getRecommendationPostByUsername(@PathVariable String username){
-        List<Post> recommend= recommendationService.getRecommendationPosts(username);
-        return recommend;
-    }
 }

BE/src/main/java/org/example/controllers/SearchController.java

@@ -1,29 +0,0 @@
-package org.example.controllers;
-
-
-import ch.qos.logback.core.joran.sanity.Pair;
-import org.example.models.Post;
-import org.example.models.User;
-import org.example.objects.SearchResultDTO;
-import org.example.services.SearchService;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.web.bind.annotation.*;
-
-import java.util.List;
-
-@RestController
-@RequestMapping("/search")
-public class SearchController {
-    @Autowired
-    private final SearchService searchService;
-
-    public SearchController(SearchService searchService) {
-        this.searchService = searchService;
-    }
-
-    @GetMapping("/get")
-    public List<Post> search(@RequestParam("condition") String condition) {
-        System.out.println(condition);
-        return searchService.searchResult(condition);
-    }
-}

BE/src/main/java/org/example/controllers/UserController.java

@@ -1,9 +1,10 @@
 package org.example.controllers;
 
 import org.example.models.User;
-import org.example.objects.FriendDTO;
+import org.example.objects.ApiResponse;
 import org.example.objects.UserDTO;
 import org.example.repositories.UserRepository;
+import org.example.requests.CreateLikeRequest;
 import org.example.requests.CreateUserRequest;
 import org.example.services.UserService;
 import org.springframework.http.HttpStatus;
@@ -37,10 +38,11 @@ public class UserController {
 
         return new ResponseEntity<>(responseUser, HttpStatus.CREATED);
     }
-    @PostMapping("/addFriend")
-    public ResponseEntity<String> addFriend(@RequestBody FriendDTO friendDTO){
-        userService.addFriend(friendDTO.getUsername1(),friendDTO.getUsername2());
-        System.out.println(friendDTO.getUsername1());
-        return new ResponseEntity<>("Friend added", HttpStatus.CREATED);
+
+    @PostMapping("/createLike")
+    public ApiResponse<CreateLikeRequest> createLike(@RequestBody  CreateLikeRequest request) {
+        ApiResponse<CreateLikeRequest> response = new ApiResponse<>();
+        response.setResult(userService.createLike(request));
+        return response;
     }
 }

BE/src/main/java/org/example/models/Category.java

@@ -1,34 +0,0 @@
-package org.example.models;
-
-import org.springframework.data.neo4j.core.schema.GeneratedValue;
-import org.springframework.data.neo4j.core.schema.Id;
-import org.springframework.data.neo4j.core.schema.Node;
-import org.springframework.data.neo4j.core.schema.Relationship;
-
-import java.util.List;
-
-
-
-@Node
-public class Category {
-    @Id
-    @GeneratedValue
-    private Long id;
-    private String name;
-
-    public Long getId() {
-        return id;
-    }
-
-    public void setId(Long id) {
-        this.id = id;
-    }
-
-    public String getName() {
-        return name;
-    }
-
-    public void setName(String name) {
-        this.name = name;
-    }
-}

BE/src/main/java/org/example/models/Like.java

@@ -0,0 +1,26 @@
+package org.example.models;
+
+
+import lombok.*;
+import lombok.experimental.FieldDefaults;
+import org.neo4j.ogm.annotation.EndNode;
+import org.neo4j.ogm.annotation.RelationshipEntity;
+import org.neo4j.ogm.annotation.StartNode;
+
+@Data
+@Builder
+@AllArgsConstructor
+@NoArgsConstructor
+@FieldDefaults(level = AccessLevel.PRIVATE)
+@RelationshipEntity(type = "LIKE")
+public class Like {
+    Long userId;
+    Long postId;
+    String status;
+
+    @StartNode
+    private User user;
+
+    @EndNode
+    private Post post;
+}

BE/src/main/java/org/example/models/Post.java

@@ -2,8 +2,6 @@ package org.example.models;
 
 
 import lombok.Getter;
-import org.example.realtionship.CommentRelationship;
-import org.example.realtionship.ShareRelationship;
 import org.example.repositories.PostRepository;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.data.neo4j.core.schema.GeneratedValue;
@@ -26,33 +24,13 @@ public class Post {
     private String content;
     private String author;
     private String imgUrl;
-    private int interactions;
-    @Relationship(type="HAS_CATEGORY", direction = Relationship.Direction.OUTGOING)
-    private Category category;
-
-    public Category getCategory() {
-        return category;
-    }
-
-    public void setCategory(Category category) {
-        this.category = category;
-    }
-
-    public int getInteractions() {
-        return interactions;
-    }
-
-    public void setInteractions(int interactions) {
-        this.interactions = interactions;
-    }
-
 
     public String getImgUrl() {
         return imgUrl;
     }
 
     public void setImgUrl(String imgUrl) {
-        this.imgUrl=imgUrl;
+        this.imgUrl = imgUrl;
     }
 
     public String getAuthor() {

BE/src/main/java/org/example/models/User.java

@@ -3,14 +3,12 @@ package org.example.models;
 import org.springframework.data.neo4j.core.schema.GeneratedValue;
 import org.springframework.data.neo4j.core.schema.Id;
 import org.springframework.data.neo4j.core.schema.Node;
-import org.springframework.data.neo4j.core.schema.Relationship;
 import org.springframework.security.core.GrantedAuthority;
 import org.springframework.security.core.authority.SimpleGrantedAuthority;
 import org.springframework.security.core.userdetails.UserDetails;
 
 import java.util.Arrays;
 import java.util.Collection;
-import java.util.List;
 
 @Node
 public class User implements UserDetails {
@@ -22,22 +20,6 @@ public class User implements UserDetails {
     private String password;
     private String roles;
 
-    @Relationship(type = "FRIEND")
-    private List<User> friends;
-
-    public void setId(Long id) {
-        this.id = id;
-    }
-
-
-    public List<User> getFriends() {
-        return friends;
-    }
-
-    public void setFriends(List<User> friends) {
-        this.friends = friends;
-    }
-
     public User() {
     }
 

BE/src/main/java/org/example/objects/ApiResponse.java

@@ -0,0 +1,18 @@
+package org.example.objects;
+
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import lombok.*;
+import lombok.experimental.FieldDefaults;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+@Builder
+@FieldDefaults(level = AccessLevel.PRIVATE)
+@JsonInclude(JsonInclude.Include.NON_NULL)
+public class ApiResponse<T>{
+        int code = 1000;
+        String message;
+        T result;
+}

BE/src/main/java/org/example/objects/CommentDTO.java

@@ -1,31 +0,0 @@
-package org.example.objects;
-
-public class CommentDTO {
-    private String username;
-    private Long postId;
-    private String content;
-
-    public String getUsername() {
-        return username;
-    }
-
-    public void setUsername(String username) {
-        this.username = username;
-    }
-
-    public Long getPostId() {
-        return postId;
-    }
-
-    public void setPostId(Long postId) {
-        this.postId = postId;
-    }
-
-    public String getContent() {
-        return content;
-    }
-
-    public void setContent(String content) {
-        this.content = content;
-    }
-}

BE/src/main/java/org/example/objects/FriendDTO.java

@@ -1,21 +0,0 @@
-package org.example.objects;
-
-public class FriendDTO {
-    private String username1,username2;
-
-    public String getUsername1() {
-        return username1;
-    }
-
-    public void setUsername1(String username1) {
-        this.username1 = username1;
-    }
-
-    public String getUsername2() {
-        return username2;
-    }
-
-    public void setUsername2(String username2) {
-        this.username2 = username2;
-    }
-}

BE/src/main/java/org/example/objects/InteractionsDTO.java

@@ -1,22 +0,0 @@
-package org.example.objects;
-
-public class InteractionsDTO {
-    private String username;
-    private Long postId;
-
-    public String getUsername() {
-        return username;
-    }
-
-    public void setUsername(String username) {
-        this.username = username;
-    }
-
-    public Long getPostId() {
-        return postId;
-    }
-
-    public void setPostId(Long postId) {
-        this.postId = postId;
-    }
-}

BE/src/main/java/org/example/objects/PostDTO.java

@@ -1,22 +1,10 @@
 package org.example.objects;
 
-import org.example.models.Category;
 import org.springframework.web.multipart.MultipartFile;
 
 public class PostDTO {
     String title,content;
-    Category category;
-    MultipartFile imageFile;
-
-    public Category getCategory() {
-        return category;
-    }
-
-    public void setCategory(Category category) {
-        this.category = category;
-    }
-
-    MultipartFile videoFile;
+    MultipartFile imageFile,videoFile;
 
     public String getTitle() {
         return title;

BE/src/main/java/org/example/objects/PostWithMedia.java

@@ -1,39 +0,0 @@
-package org.example.objects;
-
-import org.example.models.Image;
-import org.example.models.Post;
-import org.example.models.Video;
-import org.springframework.data.neo4j.core.schema.Node;
-import java.util.List;
-
-public class PostWithMedia {
-    private Post post;
-    private List<Image> images;
-    private List<Video> videos;
-
-    // Getters and setters
-    public Post getPost() {
-        return post;
-    }
-
-    public void setPost(Post post) {
-        this.post = post;
-    }
-
-    public List<Image> getImages() {
-        return images;
-    }
-
-    public void setImages(List<Image> images) {
-        this.images = images;
-    }
-
-    public List<Video> getVideos() {
-        return videos;
-    }
-
-    public void setVideos(List<Video> videos) {
-        this.videos = videos;
-    }
-}
-

BE/src/main/java/org/example/objects/SearchResultDTO.java

@@ -1,36 +0,0 @@
-package org.example.objects;
-
-import org.example.models.Post;
-import org.example.models.User;
-import org.springframework.data.neo4j.core.schema.GeneratedValue;
-import org.springframework.data.neo4j.core.schema.Id;
-import org.springframework.web.bind.annotation.GetMapping;
-
-public class SearchResultDTO {
-    @Id
-    @GeneratedValue
-    private  Long id;
-    private User user;
-    private Post post;
-
-    public SearchResultDTO(Post post, User user) {
-        this.user = user;
-        this.post = post;
-    }
-
-    public User getUser() {
-        return user;
-    }
-
-    public void setUser(User user) {
-        this.user = user;
-    }
-
-    public Post getPost() {
-        return post;
-    }
-
-    public void setPost(Post post) {
-        this.post = post;
-    }
-}

BE/src/main/java/org/example/queryresults/CourseEnrolmentQueryResult.java

@@ -3,7 +3,7 @@ package org.example.queryresults;
 
 import org.example.models.User;
 
-public class                    CourseEnrolmentQueryResult {
+public class CourseEnrolmentQueryResult {
     private User user;
 
     public CourseEnrolmentQueryResult() {

BE/src/main/java/org/example/realtionship/CommentRelationship.java

@@ -1,61 +0,0 @@
-package org.example.realtionship;
-
-import org.example.models.User;
-import org.springframework.data.neo4j.core.schema.GeneratedValue;
-import org.springframework.data.neo4j.core.schema.Id;
-import org.springframework.data.neo4j.core.schema.RelationshipProperties;
-import org.springframework.data.neo4j.core.schema.TargetNode;
-import org.springframework.web.bind.annotation.GetMapping;
-
-import java.time.LocalDateTime;
-
-@RelationshipProperties
-public class CommentRelationship {
-    @Id
-    @GeneratedValue
-    private Long id;
-    private String content;
-    private LocalDateTime timestamp;
-
-    @TargetNode private User user;
-
-    public CommentRelationship(String content, LocalDateTime timestamp, User user) {
-        this.content = content;
-        this.timestamp = timestamp;
-        this.user = user;
-    }
-
-    public Long getId() {
-        return id;
-    }
-
-    public void setId(Long id) {
-        this.id = id;
-    }
-
-    public String getContent() {
-        return content;
-    }
-
-    public void setContent(String content) {
-        this.content = content;
-    }
-
-    public LocalDateTime getTimestamp() {
-        return timestamp;
-    }
-
-    public void setTimestamp(LocalDateTime timestamp) {
-        this.timestamp = timestamp;
-    }
-
-    public User getUser() {
-        return user;
-    }
-
-    public void setUser(User user) {
-        this.user = user;
-    }
-
-    // Getters and Setters
-}

BE/src/main/java/org/example/realtionship/ShareRelationship.java

@@ -1,51 +0,0 @@
-package org.example.realtionship;
-
-import org.example.models.User;
-import org.springframework.data.annotation.Id;
-import org.springframework.data.neo4j.core.schema.GeneratedValue;
-import org.springframework.data.neo4j.core.schema.RelationshipProperties;
-import org.springframework.data.neo4j.core.schema.TargetNode;
-
-import java.time.LocalDateTime;
-
-@RelationshipProperties
-public class ShareRelationship {
-    @Id
-    @GeneratedValue
-    private Long id;
-    private LocalDateTime timestamp;
-
-    @TargetNode
-    private User user;
-
-    public ShareRelationship(LocalDateTime timestamp, User user) {
-        this.timestamp = timestamp;
-        this.user = user;
-    }
-
-    public Long getId() {
-        return id;
-    }
-
-    public void setId(Long id) {
-        this.id = id;
-    }
-
-    public LocalDateTime getTimestamp() {
-        return timestamp;
-    }
-
-    public void setTimestamp(LocalDateTime timestamp) {
-        this.timestamp = timestamp;
-    }
-
-    public User getUser() {
-        return user;
-    }
-
-    public void setUser(User user) {
-        this.user = user;
-    }
-
-    // Getters and Setters
-}

BE/src/main/java/org/example/repositories/CategoryRepository.java

@@ -1,26 +0,0 @@
-package org.example.repositories;
-
-import org.example.models.Category;
-import org.example.models.Post;
-import org.example.objects.PostDTO;
-import org.example.objects.PostWithMedia;
-import org.springframework.data.neo4j.repository.Neo4jRepository;
-import org.springframework.data.neo4j.repository.query.Query;
-import org.springframework.data.repository.query.Param;
-import org.springframework.stereotype.Repository;
-
-import java.util.List;
-
-@Repository
-public interface CategoryRepository extends Neo4jRepository<Category, Long> {
-    Category findByName(String name);
-    @Query("MATCH (c:Category)<-[:HAS_CATEGORY]-(p:Post)\n" +
-            "WHERE c.name = $categoryName\n" +
-            "OPTIONAL MATCH (p)-[:HAS_IMAGE]->(image:Image)\n" +
-            "OPTIONAL MATCH (p)-[:HAS_VIDEO]->(video:Video)\n" +
-            "RETURN ID(p)")
-    List<Long> findPostsByCategoryNames(@Param("categoryName") String categoryName);
-
-    @Query("MATCH (post:Post)-[HAS_CATEGORY]->(cate:Category) WHERE ID(post)=$postId return cate")
-    Category getCategory(@Param("postId") Long postId);
-}

BE/src/main/java/org/example/repositories/PostRepository.java

@@ -1,7 +1,6 @@
 package org.example.repositories;
 
 import org.example.controllers.UserController;
-import org.example.models.Category;
 import org.example.models.Image;
 import org.example.models.Post;
 import org.example.queryresults.PostQueryResult;
@@ -29,8 +28,6 @@ public interface PostRepository extends Neo4jRepository<Post,Long> {
                 "return image.filename")
         String getImage(@Param("postId") Long postId);
 
-
-
         @Query("MATCH (p:Post ) where ID(p)=$postId \n" +
                 "SET p.title = $title,\n" +
                 "    p.content = $content\n" +
@@ -51,52 +48,13 @@ public interface PostRepository extends Neo4jRepository<Post,Long> {
                 ")\n" +
                 "RETURN p")
         Post updatePost(@Param("postId") Long postId, @Param("title") String title, @Param("content") String content, @Param("imageFile")MultipartFile imageFile, @Param("videoFile") MultipartFile videoFile);
+        @Query("MATCH (u:User {username: $username}), (p:Post) WHERE ID(p)=$postId CREATE (u)-[:LIKES]->(p)")
+        void createLike(@Param("username") String username,@Param("postId") Long postId);
 
-        @Query("MATCH (u:User), (p:Post) WHERE u.username = $username AND ID(p) = $postId " +
-                "MERGE (u)-[:LIKED {timestamp: datetime()}]->(p) " +
-                "RETURN p")
-        Post likePost(@Param("username") String username, @Param("postId") Long postId);
-
-        @Query("MATCH (u:User)-[l:LIKED]->(p:Post) " +
-                "WHERE u.username=$username AND ID(p) = $postId " +
-                "DELETE l " +
-                "RETURN CASE WHEN COUNT(l) > 0 THEN true ELSE false END AS removed")
-        boolean toggleLike(@Param("username") String username, @Param("postId") Long postId);
-
-
-        @Query("MATCH (u:User), (p:Post) WHERE u.username=$username AND ID(p) = $postId " +
-                "MERGE (u)-[:COMMENTED {content: $content, timestamp: datetime()}]->(p) " +
-                "RETURN p")
-        Post commentPost(@Param("username") String username, @Param("postId") Long postId, @Param("content") String content);
-        @Query("MATCH (u:User), (p:Post) WHERE u.username=$username AND ID(p) = $postId " +
-                "MERGE (u)-[:SHARED {timestamp: datetime()}]->(p) " +
-                "RETURN p")
-        Post sharePost(@Param("username") String username, @Param("postId") Long postId);
-
-        @Query("MATCH (p:Post),(u:User)\n" +
-                "OPTIONAL MATCH (p)<-[l:LIKED]-(u)\n" +
-                "OPTIONAL MATCH (p)<-[c:COMMENTED]-(u)\n" +
-                "OPTIONAL MATCH (p)<-[s:SHARED]-(u)\n" +
-                "OPTIONAL MATCH (p)-[:HAS_IMAGE]->(image:Image)\n" +
-                "OPTIONAL MATCH (p)-[:HAS_VIDEO]->(video:Video)\n" +
-                "WITH p, \n" +
-                "     COUNT(DISTINCT l) AS likeCount, \n" +
-                "     COUNT(DISTINCT c) AS commentCount, \n" +
-                "     COUNT(DISTINCT s) AS shareCount, \n" +
-                "     COLLECT(DISTINCT image) AS images, \n" +
-                "     COLLECT(DISTINCT video) AS videos\n" +
-                "RETURN p, images, videos\n" +
-                "ORDER BY (likeCount + commentCount + shareCount) DESC\n" +
-                "LIMIT 10\n")
-        List<Post> findTop10ByInteractions();
+        @Query("MATCH (u:User {username: $username})-[r:LIKES]->(p:Post )  WHERE ID(p)=$postId DELETE r")
+        void deleteLike(@Param("username") String username, @Param("postId") Long postId);
 
         @Query("MATCH (user:User {username: $username}),(post:Post )"+"where ID(post)=$postId"+ " CREATE (user)-[:createPost ]->(post)"+
                 "RETURN user, post")
         PostQueryResult createPostRelationship(@Param("username") String username,@Param("postId") Long postId);
-
-//        @Query("match (p:Post)where id(p)=$postID\n" +
-//                "optional match (p)-[:HAS_IMAGE]->(image:Image)\n" +
-//                "optional match (p)-[:HAS_VIDEO]->(video:Video)\n" +
-//                "return p,image")
-//        List<Post> fi
 }

BE/src/main/java/org/example/repositories/SearchRepository.java

@@ -1,23 +0,0 @@
-package org.example.repositories;
-
-import ch.qos.logback.core.joran.sanity.Pair;
-import org.example.models.Post;
-import org.example.models.User;
-import org.example.objects.SearchResultDTO;
-import org.springframework.data.neo4j.repository.Neo4jRepository;
-import org.springframework.data.neo4j.repository.query.Query;
-import org.springframework.data.repository.CrudRepository;
-import org.springframework.data.repository.query.Param;
-import org.springframework.stereotype.Repository;
-
-import java.util.List;
-import java.util.Map;
-import java.util.Objects;
-
-@Repository
-public interface SearchRepository extends Neo4jRepository<Post,Long> {
-    @Query("MATCH (p:Post)<-[:createPost]-(u:User)\n" +
-            "WHERE p.title CONTAINS $condition OR p.content CONTAINS $condition OR u.username CONTAINS $condition \n" +
-            "RETURN p \n")
-    List<Post> search(@Param("condition") String condition);
-}

BE/src/main/java/org/example/repositories/UserRepository.java

@@ -1,53 +1,36 @@
 package org.example.repositories;
 
-import org.example.models.Category;
-import org.example.models.Post;
 import org.example.models.User;
-import org.example.objects.FriendDTO;
 import org.example.queryresults.PostQueryResult;
-import org.example.services.UserService;
 import org.springframework.data.neo4j.repository.Neo4jRepository;
 import org.springframework.data.neo4j.repository.query.Query;
 import org.springframework.data.repository.query.Param;
-import org.springframework.stereotype.Repository;
-import org.springframework.web.bind.annotation.RequestBody;
 
-import java.util.List;
 import java.util.Optional;
 
-@Repository
 public interface UserRepository extends Neo4jRepository<User, Long> {
-
-
     Optional<User> findUserByUsername(String username);
+    User findUserBy(String username);
     boolean existsByUsername(String username);
 
-    @Query("MATCH (u:User {name:$username1}), (f:User {name:$username2})\n" +
-            "OPTIONAL MATCH (u)-[fr:Friend]->(f), (f)-[fr1:Friend]->(u)\n" +
-            "WITH u, f, collect(fr) as friendships1, collect(fr1) as friendships2\n" +
-            "FOREACH (_ IN CASE WHEN size(friendships1) = 0 AND size(friendships2) = 0 THEN [1] ELSE [] END | \n" +
-            "    CREATE (u)-[:Friend]->(f) \n" +
-            "    CREATE (f)-[:Friend]->(u))\n" +
-            "FOREACH (_ IN CASE WHEN size(friendships1) > 0 AND size(friendships2) > 0 THEN [1] ELSE [] END | \n" +
-            "    DELETE friendships1[0], friendships2[0])\n")
-    void addFriend(@Param("username1") String username1, @Param("username2") String username2);
-
-
-
-    @Query("MATCH (u:User {username:$username})-[:Friend]->(f:User)\n" +
-            "match (f)-[:createPost]->(p:Post)RETURN ID(p)")
-    List<Long> findFriendPosts(@Param("username") String username);
-
-    @Query("MATCH (u:User {username: $username})-[r:LIKED|COMMENTED|SHARED]->(p:Post)\n" +
-            "OPTIONAL MATCH (p)<-[like:LIKED]-(:User)\n" +
-            "OPTIONAL MATCH (p)<-[comment:COMMENTED]-(:User)\n" +
-            "OPTIONAL MATCH (p)<-[share:SHARED]-(:User)\n" +
-            "OPTIONAL MATCH (p)-[:HAS_CATEGORY]->(c:Category)\n" +
-            "WITH p, COUNT(DISTINCT like) AS likeCount, COUNT(DISTINCT comment) AS commentCount, COUNT(DISTINCT share) AS shareCount, c.name AS categories \n" +
-            "WHERE likeCount > 0 OR commentCount > 0 OR shareCount > 0\n" +
-            "RETURN categories \n" +
-            "ORDER BY (likeCount + commentCount + shareCount) DESC")
-    List<String> findInteractedCategories(@Param("username") String username);
+
+    @Query("MATCH (user:User), (course:Course) WHERE user.username = $username AND course.identifier = $identifier " +
+            "RETURN EXISTS((user)-[:ENROLLED_IN]->(course))")
+    Boolean findEnrolmentStatus(String username, String identifier);
+
+    @Query("match (u:User), (p:POST)\n" +
+            "WHERE id(u) = $nameId AND id(p) = $postId\n" +
+            "create (u) - [:LIKE] -> (p)")
+    void createLike(@Param("nameId") Long nameId, @Param("postId*") Long postId);
+
+    @Query("match (a:User)-[r:LIKE]-> (b:POST)\n" +
+            "WHERE id(a) = $id AND id(b) = $idd\n" +
+            "RETURN COUNT(r) > 0 AS Relationship")
+    boolean checkLike(@Param("id") Long userId,@Param("idd") Long postId);
+
+//    @Query("MATCH (user:User), (course:Course) WHERE user.username = $username AND course.identifier = $identifier " +
+//            "CREATE (user)-[:ENROLLED_IN]->(course) RETURN user, course")
+//    CourseEnrolmentQueryResult createEnrolmentRelationship(String username, String identifier);
 
 
 }

BE/src/main/java/org/example/requests/CreateLikeRequest.java

@@ -0,0 +1,15 @@
+package org.example.requests;
+
+
+import lombok.*;
+import lombok.experimental.FieldDefaults;
+
+@Data
+@Builder
+@AllArgsConstructor
+@NoArgsConstructor
+@FieldDefaults(level = AccessLevel.PRIVATE)
+public class CreateLikeRequest {
+        Long userId;
+        Long postId;
+}

BE/src/main/java/org/example/services/CategoryService.java

@@ -1,23 +0,0 @@
-package org.example.services;
-
-
-import org.example.models.Category;
-import org.example.repositories.CategoryRepository;
-import org.springframework.stereotype.Service;
-
-import java.util.ArrayList;
-import java.util.List;
-
-@Service
-public class CategoryService {
-    private final CategoryRepository categoryRepository;
-
-    public CategoryService(CategoryRepository categoryRepository) {
-        this.categoryRepository = categoryRepository;
-    }
-
-    public List<Category> getAllCategories() {
-        List<Category> categories = categoryRepository.findAll();
-        return categories;
-    }
-}

BE/src/main/java/org/example/services/InteractService.java

@@ -1,45 +0,0 @@
-package org.example.services;
-
-import org.example.models.*;
-import org.example.realtionship.CommentRelationship;
-import org.example.realtionship.ShareRelationship;
-import org.example.repositories.*;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.security.core.userdetails.UserDetailsService;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-
-import java.time.LocalDateTime;
-import java.util.List;
-import java.util.Optional;
-
-@Service
-public class InteractService  {
-    private final PostRepository postRepository;
-    private final UserRepository userRepository;
-
-    @Autowired
-    public InteractService(PostRepository postRepository, UserRepository userRepository) {
-        this.postRepository = postRepository;
-        this.userRepository = userRepository;
-    }
-
-    @Transactional
-    public void toggleLike(String username , Long postId) {
-        boolean removed = postRepository.toggleLike(username, postId);
-        if (!removed) {
-            postRepository.likePost(username, postId);
-            System.out.println("Liked");
-        }
-    }
-
-    @Transactional
-    public void commentPost(String username, Long postId, String content) {
-        postRepository.commentPost(username, postId, content);
-    }
-
-    @Transactional
-    public void sharePost(String username, Long postId) {
-        postRepository.sharePost(username, postId);
-    }
-}

BE/src/main/java/org/example/services/PostService.java

@@ -3,7 +3,10 @@ package org.example.services;
 //import org.example.models.Author;
 import jakarta.transaction.Transactional;
 import org.example.controllers.UserController;
-import org.example.models.*;
+import org.example.models.Image;
+import org.example.models.Post;
+import org.example.models.User;
+import org.example.models.Video;
 import org.example.queryresults.PostQueryResult;
 import org.example.repositories.PostRepository;
 import org.example.repositories.UserRepository;
@@ -20,7 +23,6 @@ import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.security.Principal;
-import java.time.LocalDateTime;
 import java.util.List;
 import java.util.Map;
 import java.util.Optional;
@@ -34,7 +36,6 @@ public class PostService {
     private final UserService userService;
     private final UserRepository userRepository;
     private String username;
-    private Category category;
 
     @Autowired
     private Neo4jTemplate neo4jTemplate;
@@ -63,13 +64,27 @@ public class PostService {
         return getAllPost;
     }
     @Transactional
-    public Post createPost(String title, String content,Category category, MultipartFile imageFile, MultipartFile videoFile) throws IOException {
+    public void toggleLike(String username,Long postId){
+        System.out.println("Service:"+username+postId);
+        boolean alreadyLiked = neo4jTemplate.count("MATCH (u:User {username: $username})-[r:LIKES]->(p:Post) WHERE ID(p)=$postId RETURN count(r) ",
+                Map.of("username", username, "postId", postId)) > 0;
+
+        if (alreadyLiked) {
+            postRepository.deleteLike(username,postId);
+
+        } else {
+            System.out.println("Like de");
+            postRepository.createLike(username,postId);
+        }
+    }
+    @Transactional
+    public Post createPost(String title, String content, MultipartFile imageFile, MultipartFile videoFile) throws IOException {
         Post post = new Post();
         post.setTitle(title);
         post.setContent(content);
-        post.setCategory(category);
+
         if (imageFile != null) {
-            Image image = saveImageFile(imageFile, "C:\\Users\\phucl\\OneDrive\\Desktop\\JAVA_INTER\\Facebook\\FE\\FE\\public\\picture");
+            Image image = saveImageFile(imageFile, "C:\\Users\\P R O B O O K\\Documents\\Phuc\\Facebook\\FE/FE/public/picture");
 //            post.getImages().add(image);
             post.setImages(image);
         }
@@ -97,11 +112,11 @@ public class PostService {
         }
     }
     @Transactional
-    public Post editPost(Long postId, String title, String content,Category category, MultipartFile imageFile, MultipartFile videoFile) throws IOException {
+    public Post editPost(Long postId, String title, String content, MultipartFile imageFile, MultipartFile videoFile) throws IOException {
         Post post= postRepository.updatePost(postId,title,content,imageFile,videoFile);
         // Update the image file if provided
         if (imageFile != null) {
-            Image newImage = saveImageFile(imageFile, "C:\\Users\\phucl\\OneDrive\\Desktop\\JAVA_INTER\\Facebook\\FE\\FE\\public\\picture");
+            Image newImage = saveImageFile(imageFile, "C:\\Users\\P R O B O O K\\Documents\\Phuc\\Facebook\\FE/FE/public/picture");
             post.setImages(newImage);
         }
 

BE/src/main/java/org/example/services/RecommendationService.java

@@ -1,67 +0,0 @@
-package org.example.services;
-
-
-import org.example.models.Category;
-import org.example.models.Post;
-import org.example.objects.PostDTO;
-import org.example.objects.PostWithMedia;
-import org.example.repositories.CategoryRepository;
-import org.example.repositories.PostRepository;
-import org.example.repositories.UserRepository;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Service;
-
-import java.util.ArrayList;
-import java.util.HashSet;
-import java.util.List;
-import java.util.stream.Collectors;
-
-@Service
-public class RecommendationService {
-    private final PostRepository postRepository;
-    private final UserRepository userRepository;
-    private final CategoryRepository categoryRepository;
-
-    @Autowired
-    public RecommendationService(PostRepository postRepository, UserRepository userRepository, CategoryRepository categoryRepository) {
-        this.postRepository = postRepository;
-        this.userRepository = userRepository;
-        this.categoryRepository = categoryRepository;
-    }
-
-    public List<Post> getRecommendationPosts(String username) {
-        List<Post> recommendationPosts = new ArrayList<>();
-        //tim kiem bai viết phổ biến theo số lượng interact
-        List<Post> postsInteracts  = new ArrayList<>();
-        postsInteracts=postRepository.findTop10ByInteractions();
-        for (Post post : postsInteracts) {
-            post.setImgUrl(postRepository.getImage(post.getId()));
-            recommendationPosts.add(post);
-        }                                                   
-        //tìm kiếm các bài post có chung chủ đề
-       List<String> categoriesNames = userRepository.findInteractedCategories(username);
-        for (String categoryName : categoriesNames) {
-            System.out.println(categoryName);
-            List<Long> IDposts = categoryRepository.findPostsByCategoryNames(categoryName);
-            for(Long IDpost : IDposts) {
-                System.out.println(IDpost);
-                Post post= postRepository.findById(IDpost).get();
-                if(!recommendationPosts.contains(post)) {
-                    recommendationPosts.add(post);
-                    post.setImgUrl(postRepository.getImage(IDpost));
-                }
-            }
-        }
-        List<Long> postsFriend;
-        postsFriend=userRepository.findFriendPosts(username);
-        for (Long postID : postsFriend) {
-            Post post = postRepository.findById(postID).get();
-            if(!recommendationPosts.contains(post)) {
-                post.setImgUrl(postRepository.getImage(post.getId()));
-                recommendationPosts.add(post);
-            }
-        }
-        return recommendationPosts.stream().distinct().collect(Collectors.toList());
-    }
-
-}

BE/src/main/java/org/example/services/SearchService.java

@@ -1,40 +0,0 @@
-package org.example.services;
-
-
-import ch.qos.logback.core.joran.sanity.Pair;
-import org.example.models.Post;
-import org.example.models.User;
-import org.example.objects.SearchResultDTO;
-import org.example.repositories.CategoryRepository;
-import org.example.repositories.PostRepository;
-import org.example.repositories.SearchRepository;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Service;
-
-import java.util.List;
-import java.util.stream.Collectors;
-
-@Service
-public class SearchService {
-    @Autowired
-    private final SearchRepository searchRepository;
-    @Autowired
-    private final PostRepository postRepository;
-    @Autowired
-    private final CategoryRepository categoryRepository;
-
-    public SearchService(SearchRepository searchRepository, PostRepository postRepository,CategoryRepository categoryRepository) {
-        this.searchRepository = searchRepository;
-        this.postRepository = postRepository;
-        this.categoryRepository = categoryRepository;
-    }
-    public List<Post> searchResult(String condition) {
-        List<Post> posts= searchRepository.search(condition);
-        for(Post post: posts) {
-            post.setImgUrl(postRepository.getImage(post.getId()));
-            post.setCategory(categoryRepository.getCategory(post.getId()));
-        }
-        return posts;
-    }
-
-}

BE/src/main/java/org/example/services/UserService.java

@@ -1,8 +1,8 @@
 package org.example.services;
 
 import org.example.models.User;
-import org.example.repositories.PostRepository;
 import org.example.repositories.UserRepository;
+import org.example.requests.CreateLikeRequest;
 import org.example.requests.CreateUserRequest;
 import org.springframework.security.crypto.password.PasswordEncoder;
 import org.springframework.stereotype.Service;
@@ -12,12 +12,10 @@ public class UserService {
     private final UserRepository userRepository;
 
     private final PasswordEncoder passwordEncoder;
-    private final PostRepository postRepository;
 
-    public UserService(UserRepository userRepository, PasswordEncoder passwordEncoder, PostRepository postRepository) {
+    public UserService(UserRepository userRepository, PasswordEncoder passwordEncoder) {
         this.userRepository = userRepository;
         this.passwordEncoder = passwordEncoder;
-        this.postRepository = postRepository;
     }
 
     public User createUser(CreateUserRequest request) {
@@ -36,7 +34,16 @@ public class UserService {
 
         return user;
     }
-    public void addFriend(String username1, String username2) {
-        userRepository.addFriend(username1,username2);
+
+    public CreateLikeRequest createLike(CreateLikeRequest request) {
+        Long userId = request.getUserId();
+        Long postId = request.getPostId();
+        if(userRepository.checkLike(userId, postId)){
+            throw new IllegalArgumentException("Already liked");
+        }
+        userRepository.createLike(userId, postId);
+        return request;
     }
+
+
 }

BE/src/main/resources/application.properties

@@ -1,3 +1,4 @@
 spring.neo4j.uri=neo4j://localhost:7687
 spring.neo4j.authentication.username=neo4j
-spring.neo4j.authentication.password=12345678
+spring.neo4j.authentication.password=12345678
+file_upload = C:/Users/P R O B O O K/Documents/Facebook/BE/images