新增 logger 打印方法

lib/services/chat_sse_service.dart

@@ -1,8 +1,10 @@
 // 负责SSE通信
 import 'dart:convert';
-import 'dart:io';
+import 'dart:io' as IO;
 import 'dart:math';
 
+import 'package:ai_chat_assistant/ai_chat_assistant.dart';
+
 import '../utils/tts_util.dart';
 
 import '../utils/common_util.dart';
@@ -14,8 +16,8 @@ class ChatSseService {
   String? _cachedUserId;
   String? _cachedConversationId;
 
-  HttpClient? _currentClient;
-  HttpClientResponse? _currentResponse;
+  IO.HttpClient? _currentClient;
+  IO.HttpClientResponse? _currentResponse;
   bool _isAborted = true;
   bool _isFirstData = true;
   bool _isTtsStarted = false;
@@ -30,11 +32,11 @@ class ChatSseService {
     required bool isChinese,
     required Function(String, String, bool) onStreamResponse,
   }) async {
-    print("----------------------SSE Start");
+    Logger.i("----------------------SSE Start");
     _isAborted = false;
     if (_cachedUserId == null) {
       _cachedUserId = _generateRandomUserId(6);
-      print('初始化用户ID: $_cachedUserId');
+      Logger.i('初始化用户ID: $_cachedUserId');
     }
     String responseText = '';
     StringBuffer buffer = StringBuffer();
@@ -80,7 +82,7 @@ class ChatSseService {
       // 只在达到完整句子时调用 TtsUtil.send
       for (final s in sentences) {
         String ttsStr=CommonUtil.cleanText(s, true);
-        // print("发送数据到TTS: $ttsStr");
+        // Logger.i("发送数据到TTS: $ttsStr");
         TtsUtil.send(ttsStr);
       }
       // 缓存剩余不完整部分
@@ -90,7 +92,7 @@ class ChatSseService {
         buffer.write(remain);
       }
     }
-    _currentClient = HttpClient();
+    _currentClient = IO.HttpClient();
     try {
       final chatUri = Uri.parse('http://143.64.185.20:18606/chat');
       final request = await _currentClient!.postUrl(chatUri);
@@ -114,17 +116,16 @@ class ChatSseService {
             break;
           }
           if (line.startsWith('data:')) {
-            print('SSE line: $line');
+            Logger.i('SSE line: $line');
             final jsonStr = line.substring(5).trim();
             if (jsonStr == '[DONE]' || jsonStr.contains('message_end')) {
               TtsUtil.complete();
               onStreamResponse(messageId, responseText, true);
               break;
             }
-            print('SSE json: $jsonStr');
             try {
               final jsonData = json.decode(jsonStr);
-              print('SSE jsonData: $jsonData');
+              Logger.i('SSE jsonData: $jsonData');
               if (jsonData.containsKey('conversation_id') &&
                   _cachedConversationId == null) {
                 _cachedConversationId = jsonData['conversation_id'];
@@ -141,12 +142,12 @@ class ChatSseService {
                 onStreamResponse(messageId, responseText, false);
               }
             } catch (e) {
-              print('解析 SSE 数据出错: $e, 原始数据: $jsonStr');
+              Logger.e('解析 SSE 数据出错: $e, 原始数据: $jsonStr');
             }
           }
         }
       } else {
-        print('SSE 连接失败，状态码: ${_currentResponse!.statusCode}');
+        Logger.e('SSE 连接失败，状态码: ${_currentResponse!.statusCode}');
       }
     } catch (e) {
       // todo
@@ -156,7 +157,7 @@ class ChatSseService {
   }
 
   Future<void> startTts(bool isChinese) async {
-    print("----------------------TTS Start");
+    Logger.i("----------------------TTS Start");
     if (!_isTtsStarted) {
       if (await TtsUtil.start(isChinese) == true) {
         _isTtsStarted = true;
@@ -193,7 +194,7 @@ class ChatSseService {
   void resetSession() {
     _cachedUserId = null;
     _cachedConversationId = null;
-    print('SSE会话已重置');
+    Logger.i('SSE会话已重置');
   }
 
   String _generateRandomUserId(int length) {