test(addon/aikefu): 还原原先的kefu.app 方便测试

src/app/api/controller/Kefu.php

@@ -131,6 +131,7 @@ class Kefu extends BaseApi
             ], 500);
         }
     }
+
     /**
      * 获得AI服务的配置信息发送给客户端
      * @return \think\response\Json
@@ -325,6 +326,175 @@ class Kefu extends BaseApi
             return $this->response($this->error('请求失败：' . $e->getMessage()));
         }
     }
+    /**
+     * 智能客服聊天流式接口
+     */
+    public function chatStream()
+    {
+        // 获取请求参数
+        $message = $this->params['message'] ?? '';
+        $user_id = $this->params['user_id'] ?? $this->member_id;
+        $conversation_id = $this->params['conversation_id'] ?? '';
+        $stream = true;
+
+        // (可选）获取站点ID和会员ID，可以通过事件数据传递
+        $site_id = $this->params['uniacid'] ?? $this->site_id; // 使用 uniacid, 方便以后迁移，而且uniacid 是唯一的, site_id 不是，同时被params给过滤了
+        $member_id = $this->params['member_id'] ?? $this->member_id;
+        $token = $this->params['token'] ?? $this->token;  
+
+        // 验证参数
+        if (empty($message)) {
+            $this->sendStreamError('请输入消息内容');
+            exit;
+        }
+
+        // 准备事件数据
+        $event_data = [
+            'message' => $message,
+            'user_id' => $user_id,
+            'conversation_id' => $conversation_id,
+            'stream' => $stream,
+            'site_id' =>$site_id,
+            'member_id' => $member_id,
+            'token' => $token,
+            'request_id' => uniqid('stream_', true),
+            'timestamp' => time(),
+        ];
+
+        try {
+            // 设置流式响应头
+            $this->setStreamHeaders();
+
+            // 发送开始事件
+            $this->sendStreamEvent('start', [
+                'request_id' => $event_data['request_id'],
+                'timestamp' => $event_data['timestamp'],
+                'message' => '开始处理请求'
+            ]);
+
+            // 触发流式聊天事件
+            $result = Event::trigger('KefuChatStream', $event_data);
+            
+            // 处理事件结果并流式输出
+            $this->processStreamResults($result, $event_data);
+            
+        } catch (\Exception $e) {
+            $this->sendStreamError('请求失败：' . $e->getMessage());
+        }
+    }
+    
+    /**
+     * 设置流式响应头
+     */
+    private function setStreamHeaders()
+    {
+        header('Content-Type: text/event-stream');
+        header('Cache-Control: no-cache');
+        header('Connection: keep-alive');
+        header('Access-Control-Allow-Origin: *');
+        header('Access-Control-Allow-Headers: Cache-Control, Content-Type');
+        header('X-Accel-Buffering: no'); // 禁用nginx缓冲
+        if (function_exists('apache_setenv')) {
+            apache_setenv('no-gzip', '1');
+        }
+    }
+    
+    /**
+     * 发送流式事件
+     */
+    private function sendStreamEvent($event_type, $data)
+    {
+        $payload = [
+            'id' => uniqid(),
+            'event' => $event_type,
+            'timestamp' => time(),
+            'data' => $data
+        ];
+        
+        echo "event: {$event_type}\n";
+        echo "data: " . json_encode($payload, JSON_UNESCAPED_UNICODE) . "\n\n";
+        
+        if (ob_get_level()) {
+            ob_flush();
+        }
+        flush();
+    }
+    
+    /**
+     * 发送流式错误
+     */
+    private function sendStreamError($message)
+    {
+        if (!headers_sent()) {
+            $this->setStreamHeaders();
+        }
+        
+        $this->sendStreamEvent('error', [
+            'error' => $message,
+            'finished' => true
+        ]);
+        
+        exit;
+    }
+    
+    /**
+     * 处理流式结果
+     */
+    private function processStreamResults($results, $event_data)
+    {
+        try {
+            if (is_array($results) && !empty($results)) {
+                foreach ($results as $result) {
+                    if (isset($result['type'])) {
+                        switch ($result['type']) {
+                            case 'chunk':
+                                // 发送内容块
+                                $this->sendStreamEvent('message', [
+                                    'content' => $result['content'] ?? '',
+                                    'conversation_id' => $result['conversation_id'] ?? $event_data['conversation_id'],
+                                    'message_id' => $result['message_id'] ?? '',
+                                    'finished' => $result['finished'] ?? false
+                                ]);
+                                break;
+                                
+                            case 'error':
+                                // 发送错误
+                                $this->sendStreamEvent('error', [
+                                    'error' => $result['message'] ?? '未知错误',
+                                    'conversation_id' => $result['conversation_id'] ?? $event_data['conversation_id']
+                                ]);
+                                break;
+                                
+                            case 'complete':
+                                // 发送完成事件
+                                $this->sendStreamEvent('complete', [
+                                    'conversation_id' => $result['conversation_id'] ?? $event_data['conversation_id'],
+                                    'message_id' => $result['message_id'] ?? '',
+                                    'usage' => $result['usage'] ?? [],
+                                    'finish_reason' => $result['finish_reason'] ?? ''
+                                ]);
+                                break;
+                        }
+                    }
+                }
+            } else {
+                // 如果没有事件处理器或结果为空，发送完成事件
+                $this->sendStreamEvent('complete', [
+                    'conversation_id' => $event_data['conversation_id'],
+                    'message' => '暂无可用响应'
+                ]);
+            }
+            
+            // 发送结束事件
+            $this->sendStreamEvent('end', [
+                'request_id' => $event_data['request_id'],
+                'status' => 'completed'
+            ]);
+            
+        } catch (\Exception $e) {
+            $this->sendStreamError('处理流式结果失败：' . $e->getMessage());
+        }
+    }
 
     /**
      * 创建新会话