fix actions

app/actions/fetch_downloads.py

@@ -1,4 +1,5 @@
 from app.actions import BaseAction
+from app.chain.download import DownloadChain
 from app.schemas import ActionParams, ActionContext
 
 
@@ -14,6 +15,12 @@ class FetchDownloadsAction(BaseAction):
     获取下载任务
     """
 
+    _downloads = []
+
+    def __init__(self):
+        super().__init__()
+        self.downloadchain = DownloadChain()
+
     @property
     def name(self) -> str:
         return "获取下载任务"
@@ -24,7 +31,23 @@ class FetchDownloadsAction(BaseAction):
 
     @property
     def success(self) -> bool:
-        return True
+        if not self._downloads:
+            return True
+        return True if all([d.completed for d in self._downloads]) else False
 
     async def execute(self, params: FetchDownloadsParams, context: ActionContext) -> ActionContext:
-        pass
+        """
+        更新downloads中的下载任务状态
+        """
+        self._downloads = context.downloads
+        for download in self._downloads:
+            torrents = self.downloadchain.list_torrents(hashs=[download.download_id])
+            if not torrents:
+                download.completed = True
+                continue
+            for t in torrents:
+                if t.progress >= 100:
+                    download.completed = True
+
+        self.job_done()
+        return context