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

package com.example.myproject.controller;

import com.example.myproject.service.UserFollowService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;

import java.util.Map;

@RestController
@RequestMapping("/echo/users")
public class UserFollowController {

    @Autowired
    private UserFollowService userFollowService;

    // 用户关注接口
    @PostMapping("/{followed_id}/follow")
    public ResponseEntity<Map<String, Object>> follow(@PathVariable("followed_id") Long followedId,
                                                      @RequestBody Map<String, Long> request) {
        Long followerId = request.get("follower_id");
        Map<String, Object> response = userFollowService.follow(followerId, followedId);
        return ResponseEntity.ok(response);
    }

    // 取消关注接口
    @PostMapping("/{followed_id}/unfollow")
    public ResponseEntity<Map<String, Object>> unfollow(@PathVariable("followed_id") Long followedId,
                                                        @RequestBody Map<String, Long> request) {
        Long followerId = request.get("follower_id");
        Map<String, Object> response = userFollowService.unfollow(followerId, followedId);
        return ResponseEntity.ok(response);
    }

    // 获取某个用户的粉丝列表
    @GetMapping("/{user_id}/followers")
    public ResponseEntity<Map<String, Object>> getFollowers(@PathVariable("user_id") Long userId) {
        Map<String, Object> response = userFollowService.getFollowers(userId);
        return ResponseEntity.ok(response);
    }

    @GetMapping("/{user_id}/following")
    public ResponseEntity<Map<String, Object>> getFollowing(@PathVariable("user_id") Long userId) {
        Map<String, Object> response = userFollowService.getFollowing(userId);
        return ResponseEntity.ok(response);
    }
}