bug修复和架构完善

backend/core.js

@@ -1,6 +1,7 @@
 const Fse = require('fs-extra');
 const Path = require('path');
 const PixivAuth = require('./auth');
+const DownloadService = require('./services/download');
 
 // 配置文件路径
 const CONFIG_FILE_DIR = require('appdata-path').getAppDataPath('pxder');
@@ -24,6 +25,7 @@ class PixivBackend {
     this.config = null;
     this.auth = null;
     this.isLoggedIn = false;
+    this.downloadService = null;
   }
 
   /**
@@ -39,6 +41,10 @@ class PixivBackend {
     // 创建认证实例，传入代理配置
     this.auth = new PixivAuth(this.config.proxy);
     
+    // 创建下载服务实例
+    this.downloadService = new DownloadService(this.auth);
+    await this.downloadService.init();
+    
     // 检查登录状态
     if (this.config.refresh_token) {
       console.log('检测到已保存的登录信息，正在验证...');
@@ -161,6 +167,12 @@ class PixivBackend {
         // 更新配置
         this.config.access_token = result.access_token;
         this.config.refresh_token = result.refresh_token;
+        
+        // 如果刷新令牌响应中包含用户信息，则更新
+        if (result.user) {
+          this.config.user = result.user;
+        }
+        
         this.saveConfig();
         
         this.isLoggedIn = true;
@@ -253,6 +265,13 @@ class PixivBackend {
   getAuth() {
     return this.auth;
   }
+
+  /**
+   * 获取下载服务实例
+   */
+  getDownloadService() {
+    return this.downloadService;
+  }
 }
 
 module.exports = PixivBackend;