edit post

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

@@ -2,11 +2,15 @@ package org.example.controllers;
 
 //import org.example.models.Author;
 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.repositories.PostRepository;
 import org.example.services.PostService;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 
@@ -31,7 +35,27 @@ public class PostController {
         return postService.getAllPost();
     }
 
+    @GetMapping("/edit/{id}")
+    public Post getPostById(@PathVariable Long id){
+        return postService.findPostById(id);
+    }
+
+    @PostMapping("/edit/{id}")
+    public Post updatePost(@PathVariable Long id,@RequestBody PostDTO postDTO) throws IOException {
+        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(
 

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

@@ -0,0 +1,22 @@
+package org.example.models;
+
+public class LikeRequest {
+    String username;
+    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

@@ -0,0 +1,40 @@
+package org.example.objects;
+
+import org.springframework.web.multipart.MultipartFile;
+
+public class PostDTO {
+    String title,content;
+    MultipartFile imageFile,videoFile;
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public MultipartFile getImageFile() {
+        return imageFile;
+    }
+
+    public void setImageFile(MultipartFile imageFile) {
+        this.imageFile = imageFile;
+    }
+
+    public MultipartFile getVideoFile() {
+        return videoFile;
+    }
+
+    public void setVideoFile(MultipartFile videoFile) {
+        this.videoFile = videoFile;
+    }
+}

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

@@ -7,7 +7,10 @@ import org.example.queryresults.PostQueryResult;
 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.security.core.parameters.P;
 import org.springframework.stereotype.Repository;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.multipart.MultipartFile;
 
 import java.util.List;
 import java.util.UUID;
@@ -25,9 +28,32 @@ public interface PostRepository extends Neo4jRepository<Post,Long> {
                 "return image.filename")
         String getImage(@Param("postId") Long postId);
 
-//    @Query("MATCH (user:User {username: $username}), (post:Post ) " +" WHERE ID(post)=$postId "+
-//            "CREATE (user)-[:createPost]->(post) Return user,post")
-//    void createPostRelationship(@Param("username") String username,@Param("postId") Long postId);
+        @Query("MATCH (p:Post ) where ID(p)=$postId \n" +
+                "SET p.title = $title,\n" +
+                "    p.content = $content\n" +
+                "WITH p\n" +
+                "OPTIONAL MATCH (p)-[r:HAS_IMAGE]->(oldImage:Image)\n" +
+                "DELETE r, oldImage\n" +
+                "WITH p\n" +
+                "OPTIONAL MATCH (p)-[r:HAS_VIDEO]->(oldVideo:Video)\n" +
+                "DELETE r, oldVideo\n" +
+                "WITH p\n" +
+                "FOREACH (ignoreMe IN CASE WHEN $imageFile IS NOT NULL THEN [1] ELSE [] END |\n" +
+                "    CREATE (newImage:Image {url: $imageFile})\n" +
+                "    CREATE (p)-[:HAS_IMAGE]->(newImage)\n" +
+                ")\n" +
+                "FOREACH (ignoreMe IN CASE WHEN $videoFile IS NOT NULL THEN [1] ELSE [] END |\n" +
+                "    CREATE (newVideo:Video {url: $videoFile})\n" +
+                "    CREATE (p)-[:HAS_VIDEO]->(newVideo)\n" +
+                ")\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 {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);

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

@@ -11,6 +11,10 @@ import org.example.queryresults.PostQueryResult;
 import org.example.repositories.PostRepository;
 import org.example.repositories.UserRepository;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.neo4j.core.Neo4jOperations;
+import org.springframework.data.neo4j.core.Neo4jTemplate;
+import org.springframework.data.neo4j.repository.Neo4jRepository;
+import org.springframework.data.neo4j.repository.query.Query;
 import org.springframework.stereotype.Service;
 import org.springframework.web.multipart.MultipartFile;
 
@@ -20,6 +24,8 @@ import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.security.Principal;
 import java.util.List;
+import java.util.Map;
+import java.util.Optional;
 import java.util.UUID;
 
 @Service
@@ -31,7 +37,8 @@ public class PostService {
     private final UserRepository userRepository;
     private String username;
 
-
+    @Autowired
+    private Neo4jTemplate neo4jTemplate;
     @Autowired
     public PostService(PostRepository postRepository, UserController userController, UserService userService, UserRepository userRepository) {
         this.postRepository = postRepository;
@@ -57,6 +64,20 @@ public class PostService {
         return getAllPost;
     }
     @Transactional
+    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);
@@ -81,6 +102,34 @@ public class PostService {
 
         return post1;
     }
+    @Transactional
+    public Post findPostById(Long postId) {
+        Optional<Post> checkPost = postRepository.findById(postId);
+        if (!checkPost.isPresent()) {
+            throw new IllegalArgumentException("Post with ID " + postId + " not found.");
+        }else{
+            return checkPost.get();
+        }
+    }
+    @Transactional
+    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\\P R O B O O K\\Documents\\Phuc\\Facebook\\FE/FE/public/picture");
+            post.setImages(newImage);
+        }
+
+        // Update the video file if provided
+        if (videoFile != null) {
+            Video newVideo = saveVideoFile(videoFile, "videos");
+            post.getVideos().clear();
+            post.getVideos().add(newVideo);
+        } else {
+            post.getVideos().clear();
+        }
+        return post;
+    }
 
     private Image saveImageFile(MultipartFile file, String folder) throws IOException {
         // Ensure directory exists; create if not