fix douban plugin

app/plugins/doubansync/__init__.py

@@ -398,7 +398,8 @@ class DoubanSync(_PluginBase):
                     exist_flag, no_exists = self.downloadchain.get_no_exists_info(meta=meta, mediainfo=mediainfo)
                     if exist_flag:
                         logger.info(f'{mediainfo.title_year} 媒体库中已存在')
-                        continue
+                        action = "exist"
+                    else:
                         logger.info(f'{mediainfo.title_year} 媒体库中不存在，开始搜索 ...')
                         # 搜索
                         contexts = self.searchchain.process(mediainfo=mediainfo,
@@ -434,6 +435,7 @@ class DoubanSync(_PluginBase):
                                                         username="豆瓣想看")
                                 action = "subscribe"
                     # 存储历史记录
+                    if douban_id not in [h.get("doubanid") for h in history]:
                         history.append({
                             "action": action,
                             "title": doubaninfo.get("title") or mediainfo.title,