Update code

test2/server/services/volcengine.js

@@ -0,0 +1,132 @@
+const { Signer } = require('@volcengine/openapi');
+const fetch = require('node-fetch');
+const { AccessToken, privileges } = require('../lib/token');
+
+class VolcengineService {
+  constructor() {
+    this.baseUrl = 'https://rtc.volcengineapi.com';
+    this.service = 'rtc';
+    this.region = 'cn-north-1';
+    this.version = '2024-12-01';
+  }
+
+  async startVoiceChat(config) {
+    console.log('[Volcengine] Starting voice chat (S2S端到端 + LLM混合, API v2024-12-01)');
+    console.log('[Volcengine] RoomId:', config.RoomId);
+    // ProviderParams 可能是 JSON 字符串或对象
+    let pp = config.Config.S2SConfig?.ProviderParams;
+    if (typeof pp === 'string') {
+      try { pp = JSON.parse(pp); } catch (e) { pp = {}; }
+    }
+    console.log('[Volcengine] S2S AppId:', pp?.app?.appid);
+    console.log('[Volcengine] S2S model:', pp?.dialog?.extra?.model);
+    console.log('[Volcengine] S2S speaker:', pp?.tts?.speaker);
+    console.log('[Volcengine] ProviderParams type:', typeof config.Config.S2SConfig?.ProviderParams);
+    console.log('[Volcengine] LLM EndPointId:', config.Config.LLMConfig?.EndPointId);
+    console.log('[Volcengine] Tools:', config.Config.LLMConfig?.Tools?.length || 0);
+    console.log('[Volcengine] Full request body:', JSON.stringify(config, null, 2));
+    const result = await this._callOpenAPI('StartVoiceChat', config);
+    console.log('[Volcengine] StartVoiceChat response:', JSON.stringify(result, null, 2));
+    return result;
+  }
+
+  async updateVoiceChat(params) {
+    console.log('[Volcengine] Updating voice chat (v2024-12-01)');
+    console.log('[Volcengine] UpdateVoiceChat params:', JSON.stringify(params, null, 2));
+    const result = await this._callOpenAPI('UpdateVoiceChat', params);
+    console.log('[Volcengine] UpdateVoiceChat response:', JSON.stringify(result, null, 2));
+    return result;
+  }
+
+  async stopVoiceChat(params) {
+    console.log('[Volcengine] Stopping voice chat, RoomId:', params.RoomId);
+    return this._callOpenAPI('StopVoiceChat', params);
+  }
+
+  /**
+   * 生成 RTC 入房 Token
+   * 使用官方 AccessToken 库：https://github.com/volcengine/rtc-aigc-demo/blob/main/Server/token.js
+   */
+  generateRTCToken(roomId, userId) {
+    const appId = process.env.VOLC_RTC_APP_ID;
+    const appKey = process.env.VOLC_RTC_APP_KEY;
+
+    if (!appId || !appKey || appKey === 'your_rtc_app_key') {
+      console.warn('[Volcengine] RTC AppKey not configured, returning placeholder token');
+      return `placeholder_token_${roomId}_${userId}_${Date.now()}`;
+    }
+
+    const token = new AccessToken(appId, appKey, roomId, userId);
+    const expireTime = Math.floor(Date.now() / 1000) + 24 * 3600; // 24 小时有效
+    token.expireTime(expireTime);
+    token.addPrivilege(privileges.PrivPublishStream, 0);
+    token.addPrivilege(privileges.PrivSubscribeStream, 0);
+
+    const serialized = token.serialize();
+    console.log(`[Volcengine] RTC Token generated for room=${roomId}, user=${userId}`);
+    return serialized;
+  }
+
+  async _callOpenAPI(action, body, versionOverride) {
+    const ak = process.env.VOLC_ACCESS_KEY_ID;
+    const sk = process.env.VOLC_SECRET_ACCESS_KEY;
+    const version = versionOverride || this.version;
+
+    if (!ak || !sk || ak === 'your_access_key_id') {
+      console.warn(`[Volcengine] Credentials not configured, returning mock response for ${action}`);
+      return this._mockResponse(action, body);
+    }
+
+    // 与官方 rtc-aigc-demo 完全一致的签名方式
+    const openApiRequestData = {
+      region: this.region,
+      method: 'POST',
+      params: {
+        Action: action,
+        Version: version,
+      },
+      headers: {
+        Host: 'rtc.volcengineapi.com',
+        'Content-type': 'application/json',
+      },
+      body,
+    };
+
+    const signer = new Signer(openApiRequestData, this.service);
+    signer.addAuthorization({ accessKeyId: ak, secretKey: sk });
+
+    const url = `${this.baseUrl}?Action=${action}&Version=${version}`;
+    console.log(`[Volcengine] ${action} calling:`, url);
+
+    try {
+      const response = await fetch(url, {
+        method: 'POST',
+        headers: openApiRequestData.headers,
+        body: JSON.stringify(body),
+      });
+      const data = await response.json();
+
+      if (data?.ResponseMetadata?.Error) {
+        const err = data.ResponseMetadata.Error;
+        throw new Error(`${action} failed: ${err.Code} - ${err.Message}`);
+      }
+      return data;
+    } catch (error) {
+      console.error(`[Volcengine] ${action} error:`, error.message);
+      throw error;
+    }
+  }
+
+  /**
+   * Mock 响应（开发阶段凭证未配置时使用）
+   */
+  _mockResponse(action, params) {
+    console.log(`[Volcengine][MOCK] ${action} called with:`, JSON.stringify(params, null, 2).substring(0, 500));
+    return {
+      ResponseMetadata: { RequestId: `mock-${Date.now()}`, Action: action },
+      Result: { Message: 'Mock response - credentials not configured' },
+    };
+  }
+}
+
+module.exports = new VolcengineService();