fix: 修正思考模式 - 使用thinking参数而非切换模型

www/app.js

@@ -5,7 +5,6 @@ const CONFIG = {
   apiUrl: 'https://open.bigmodel.cn/api/paas/v4/chat/completions',
   apiKey: '2259e33a1357460abe17919aaf81e73d.K44a8LPQTmFM5PKm',
   model: 'glm-4.5-air',
-  thinkingModel: 'glm-z1-flash',  // 智谱思考模型
   maxTokens: 2048
 };
 
@@ -395,10 +394,12 @@ async function streamGenerate(userMsgIndex) {
   sendBtn.disabled = true;
 
   const aiMessageIndex = currentConversation.messages.length;
+  
+  // 只有开启深度思考时才添加 thinking 字段
   currentConversation.messages.push({ 
     role: 'assistant', 
     content: '',
-    thinking: ''  // 思考内容
+    ...(enableThinking ? { thinking: '' } : {})
   });
   renderMessages();
   
@@ -406,12 +407,29 @@ async function streamGenerate(userMsgIndex) {
   const contentEl = lastMessageEl.querySelector('.message-content');
   const thinkingEl = lastMessageEl.querySelector('.thinking-content');
   
+  // 深度思考模式：思考块默认展开
+  if (enableThinking && thinkingEl) {
+    const thinkingBlock = lastMessageEl.querySelector('.thinking-block');
+    if (thinkingBlock) thinkingBlock.classList.add('expanded');
+    thinkingEl.innerHTML = '<span class="streaming-cursor">思考中...</span>';
+  }
+  
   contentEl.innerHTML = '<span class="streaming-cursor">▌</span>';
-  if (thinkingEl) thinkingEl.innerHTML = '<span class="streaming-cursor">▌</span>';
 
   try {
-    // 根据开关选择模型
-    const model = enableThinking ? CONFIG.thinkingModel : CONFIG.model;
+    // 构建请求体 - 统一使用 glm-4.5-air，通过 thinking 参数控制
+    const requestBody = {
+      model: CONFIG.model,
+      messages: currentConversation.messages.slice(0, aiMessageIndex).map(m => ({
+        role: m.role,
+        content: m.content
+      })),
+      max_tokens: CONFIG.maxTokens,
+      stream: true,
+      thinking: {
+        type: enableThinking ? 'enabled' : 'disabled'
+      }
+    };
     
     const response = await fetch(CONFIG.apiUrl, {
       method: 'POST',
@@ -419,15 +437,7 @@ async function streamGenerate(userMsgIndex) {
         'Content-Type': 'application/json',
         'Authorization': `Bearer ${CONFIG.apiKey}`
       },
-      body: JSON.stringify({
-        model: model,
-        messages: currentConversation.messages.slice(0, aiMessageIndex).map(m => ({
-          role: m.role,
-          content: m.content
-        })),
-        max_tokens: CONFIG.maxTokens,
-        stream: true
-      })
+      body: JSON.stringify(requestBody)
     });
 
     if (!response.ok) {
@@ -437,7 +447,7 @@ async function streamGenerate(userMsgIndex) {
     const reader = response.body.getReader();
     const decoder = new TextDecoder();
     let buffer = '';
-    let thinkingComplete = false;  // 思考是否完成
+    let thinkingOutputStarted = false;  // 正式内容是否开始输出
 
     while (true) {
       const { done, value } = await reader.read();
@@ -457,24 +467,21 @@ async function streamGenerate(userMsgIndex) {
             const delta = data.choices?.[0]?.delta;
             
             if (delta) {
-              // 处理思考内容
-              if (delta.reasoning_content || delta.thinking) {
+              // 只有开启深度思考时才处理思考内容
+              if (enableThinking && (delta.reasoning_content || delta.thinking)) {
                 const thinkingChunk = delta.reasoning_content || delta.thinking;
                 currentConversation.messages[aiMessageIndex].thinking += thinkingChunk;
                 if (thinkingEl) {
                   thinkingEl.innerHTML = renderMarkdown(currentConversation.messages[aiMessageIndex].thinking) + '<span class="streaming-cursor">▌</span>';
-                  // 思考时展开
-                  const thinkingBlock = lastMessageEl.querySelector('.thinking-block');
-                  if (thinkingBlock) thinkingBlock.classList.add('expanded');
                 }
                 scrollToBottom();
               }
               
               // 处理正式回复内容
               if (delta.content) {
-                // 如果开始输出正式内容，说明思考完成
-                if (currentConversation.messages[aiMessageIndex].thinking && !thinkingComplete) {
-                  thinkingComplete = true;
+                // 如果开启深度思考且开始输出正式内容，折叠思考块
+                if (enableThinking && !thinkingOutputStarted && currentConversation.messages[aiMessageIndex].thinking) {
+                  thinkingOutputStarted = true;
                   // 折叠思考内容
                   const thinkingBlock = lastMessageEl.querySelector('.thinking-block');
                   if (thinkingBlock) thinkingBlock.classList.remove('expanded');
@@ -492,7 +499,7 @@ async function streamGenerate(userMsgIndex) {
     }
 
     // 最终渲染
-    if (thinkingEl && currentConversation.messages[aiMessageIndex].thinking) {
+    if (thinkingEl && enableThinking && currentConversation.messages[aiMessageIndex].thinking) {
       thinkingEl.innerHTML = renderMarkdown(currentConversation.messages[aiMessageIndex].thinking);
     }
     contentEl.innerHTML = renderMarkdown(currentConversation.messages[aiMessageIndex].content);

www/index.html

@@ -8,12 +8,12 @@
   <meta http-equiv="Pragma" content="no-cache">
   <meta http-equiv="Expires" content="0">
   <title>AI助手</title>
-  <link rel="stylesheet" href="style.css?v=2.2.1">
+  <link rel="stylesheet" href="style.css?v=2.2.3">
   <link rel="manifest" href="manifest.json">
 </head>
 <body>
   <div id="app"></div>
-  <script src="marked.min.js?v=2.2.1"></script>
-  <script src="app.js?v=2.2.1"></script>
+  <script src="marked.min.js?v=2.2.3"></script>
+  <script src="app.js?v=2.2.3"></script>
 </body>
 </html>