src/main/java/com/example/myproject/controller/PostController.java

package com.example.myproject.controller;

import com.example.myproject.entity.Post;
import com.example.myproject.service.PostService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import java.util.List;
import java.util.Map;
import java.util.Optional;

@RestController
@RequestMapping("/echo/forum/posts")
public class PostController {

    @Autowired
    private PostService postService;

    //创建新帖子（已完成）
    @PostMapping("/{user_id}/createPost")
    public Map<String, Object> createPost(
            @PathVariable("user_id") Long userId,
            @RequestParam(value = "postContent") String postContent,
            @RequestParam(value = "title", required = false) String title,
            @RequestParam(value = "imageUrl") MultipartFile[] imageFiles) {
        return postService.createPost(userId, postContent, title, imageFiles);
    }

    //编辑帖子（已完成）
    @PutMapping("/{post_id}/editPost")
    public String updatePost(@PathVariable("post_id") Long postId, @RequestBody Post post) {
        postService.updatePost(postId, post);
        return "Post updated successfully!";
    }

    //删除帖子（已完成）
    @DeleteMapping("/{post_id}/deletePost")
    public String deletePost(@PathVariable("post_id") Long postId) {
        postService.deletePost(postId);
        return "Post deleted successfully!";
    }

    //点赞帖子（已完成）
    @PostMapping("/{post_id}/like")
    public String likePost(@PathVariable("post_id") Long postId, @RequestBody Map<String, Long> requestBody) {

        Long userId = requestBody.get("user_id");
        postService.likePost(postId, userId);

        return "Post liked successfully!";
    }

    //取消点赞（已完成）
    @PostMapping("/{post_id}/unlike")
    public String unlikePost(@PathVariable("post_id") Long postId, @RequestBody Map<String, Long> requestBody) {
        Long userId = requestBody.get("user_id");
        postService.unlikePost(postId, userId);

        return "Post unliked successfully!";
    }

    //获取帖子列表（已完成）
    @GetMapping("/getAllPosts")
    public Map<String, Object> getAllPosts() {
        return postService.getAllPosts();  // 调用服务层的 getAllPosts 方法
    }

    @GetMapping("/{postId}/getPost")
    public Map<String, Object> getPostById(@PathVariable Long postId) {
        return postService.getPostById(postId);
    }


    //收藏帖子（已完成）
    @PostMapping("/{post_id}/collect")
    public String collectPost(@PathVariable("post_id") Long postId, @RequestBody Map<String, Long> requestBody) {
        Long userId = requestBody.get("user_id");
        postService.collectPost(postId, userId);

        return "Post collected successfully!";
    }


    //取消收藏（已完成）
    @DeleteMapping("/{post_id}/uncollect")
    public String uncollectPost(@PathVariable("post_id") Long postId, @RequestBody Map<String, Long> requestBody) {
        Long userId = requestBody.get("user_id");
        postService.uncollectPost(postId, userId);
        return "Post uncollected successfully!";
    }

    // 获取用户收藏的所有帖子
    @GetMapping("/{userId}/getAllcollections")
    public List<Map<String, Object>> getAllCollections(@PathVariable("userId") Long userId) {
        return postService.getAllCollections(userId);
    }


}