by wrong

bot/helper/mirror_utils/download_utils/download_helper.py

@@ -0,0 +1,27 @@
+# An abstract class which will be inherited by the tool specific classes like aria2_helper or mega_download_helper
+import threading
+
+
+class MethodNotImplementedError(NotImplementedError):
+    def __init__(self):
+        super(self, 'Not implemented method')
+
+
+class DownloadHelper:
+    def __init__(self):
+        self.name = ''  # Name of the download; empty string if no download has been started
+        self.size = 0.0  # Size of the download
+        self.downloaded_bytes = 0.0  # Bytes downloaded
+        self.speed = 0.0  # Download speed in bytes per second
+        self.progress = 0.0
+        self.progress_string = '0.00%'
+        self.eta = 0  # Estimated time of download complete
+        self.eta_string = '0s'  # A listener class which have event callbacks
+        self._resource_lock = threading.Lock()
+
+    def add_download(self, link: str, path):
+        raise MethodNotImplementedError
+
+    def cancel_download(self):
+        # Returns None if successfully cancelled, else error string
+        raise MethodNotImplementedError