修复多轮对话bug

src/ui/terminal.ts

@@ -1,18 +1,23 @@
 import * as readline from 'readline';
 import chalk from 'chalk';
-import ora from 'ora';
 import type { Agent } from '../core/agent.js';
 
 export class TerminalUI {
   private agent: Agent;
   private rl: readline.Interface;
-  private spinner = ora();
+  private isClosed = false;
 
   constructor(agent: Agent) {
     this.agent = agent;
     this.rl = readline.createInterface({
       input: process.stdin,
       output: process.stdout,
+      terminal: true,
+    });
+
+    // 监听关闭事件
+    this.rl.on('close', () => {
+      this.isClosed = true;
     });
   }
 
@@ -20,7 +25,7 @@ export class TerminalUI {
   private showWelcome(): void {
     console.log(chalk.cyan('\n╔════════════════════════════════════════╗'));
     console.log(chalk.cyan('║') + chalk.bold.white('     🤖 AI Terminal Assistant          ') + chalk.cyan('║'));
-    console.log(chalk.cyan('║') + chalk.gray('     Powered by Claude                 ') + chalk.cyan('║'));
+    console.log(chalk.cyan('║') + chalk.gray('     Powered by DeepSeek / Claude      ') + chalk.cyan('║'));
     console.log(chalk.cyan('╚════════════════════════════════════════╝\n'));
     console.log(chalk.gray('输入你的问题，或使用以下命令：'));
     console.log(chalk.yellow('  /help') + chalk.gray('  - 显示帮助'));
@@ -52,6 +57,7 @@ export class TerminalUI {
       case '/exit':
       case '/quit':
         console.log(chalk.cyan('\n👋 再见！\n'));
+        this.close();
         process.exit(0);
 
       default:
@@ -61,9 +67,14 @@ export class TerminalUI {
 
   // 提问并获取用户输入
   private prompt(): Promise<string> {
-    return new Promise((resolve) => {
+    return new Promise((resolve, reject) => {
+      if (this.isClosed) {
+        reject(new Error('readline closed'));
+        return;
+      }
+
       this.rl.question(chalk.green('You > '), (answer) => {
-        resolve(answer);
+        resolve(answer ?? '');
       });
     });
   }
@@ -72,58 +83,70 @@ export class TerminalUI {
   async start(): Promise<void> {
     this.showWelcome();
 
-    while (true) {
-      const input = await this.prompt();
+    while (!this.isClosed) {
+      try {
+        const input = await this.prompt();
 
-      // 跳过空输入
-      if (!input.trim()) {
-        continue;
-      }
-
-      // 处理命令
-      if (input.startsWith('/')) {
-        if (this.handleCommand(input)) {
+        // 跳过空输入
+        if (!input.trim()) {
           continue;
         }
-      }
 
-      // 发送给 AI
-      this.spinner.start(chalk.gray('思考中...'));
-
-      try {
-        let isFirstChunk = true;
-
-        await this.agent.chat(input, (text) => {
-          if (isFirstChunk) {
-            this.spinner.stop();
-            process.stdout.write(chalk.blue('AI > '));
-            isFirstChunk = false;
+        // 处理命令
+        if (input.startsWith('/')) {
+          if (this.handleCommand(input)) {
+            continue;
           }
+        }
 
-          // 处理工具调用的输出
-          if (text.startsWith('\n[调用工具:')) {
-            process.stdout.write(chalk.yellow(text));
-          } else if (text.startsWith('[结果:') || text.startsWith('[错误:')) {
-            process.stdout.write(chalk.gray(text));
-          } else {
-            process.stdout.write(text);
-          }
-        });
+        // 发送给 AI
+        process.stdout.write(chalk.gray('思考中...'));
 
-        console.log('\n');
-      } catch (error) {
-        this.spinner.stop();
-        console.log(
-          chalk.red(
-            `\n❌ 错误: ${error instanceof Error ? error.message : String(error)}\n`
-          )
-        );
+        try {
+          let isFirstChunk = true;
+
+          await this.agent.chat(input, (text) => {
+            if (isFirstChunk) {
+              // 清除 "思考中..." 并显示 AI 前缀
+              process.stdout.write('\r' + ' '.repeat(20) + '\r');
+              process.stdout.write(chalk.blue('AI > '));
+              isFirstChunk = false;
+            }
+
+            // 处理工具调用的输出
+            if (text.startsWith('\n[调用工具:')) {
+              process.stdout.write(chalk.yellow(text));
+            } else if (text.startsWith('[结果:') || text.startsWith('[错误:')) {
+              process.stdout.write(chalk.gray(text));
+            } else {
+              process.stdout.write(text);
+            }
+          });
+
+          console.log('\n');
+        } catch (error) {
+          // 清除 "思考中..."
+          process.stdout.write('\r' + ' '.repeat(20) + '\r');
+          console.log(
+            chalk.red(
+              `❌ 错误: ${error instanceof Error ? error.message : String(error)}\n`
+            )
+          );
+        }
+      } catch {
+        // readline 关闭，退出循环
+        break;
       }
     }
+
+    console.log(chalk.cyan('\n👋 再见！\n'));
   }
 
   // 关闭
   close(): void {
-    this.rl.close();
+    if (!this.isClosed) {
+      this.isClosed = true;
+      this.rl.close();
+    }
   }
 }