async channel helper sending

bots/tasks.py

@@ -0,0 +1,37 @@
+import json
+import logging
+import os
+import traceback
+
+from config.celery import app
+from djconfig import config
+
+
+@app.task(bind=True)
+def upload_image_rpc(self, queued_image_pk, fpath, caption):
+    from .modules.channel_helper import QueuedItem
+    try:
+        logging.warning(f'Processing upload task for queued item #{queued_image_pk}')
+        qi = QueuedItem.objects.get(pk=queued_image_pk)
+        bot = qi.config.bot.get_bot()
+        if qi.config.queued:
+            m = bot.send_photo(
+                config.tmp_uploads_chat_id,
+                open(fpath, 'rb'),
+                caption=caption,
+            )
+            qi.message_id = m.message_id
+            qi.args = json.dumps([m.photo[-1].file_id])
+            qi.save()
+        else:
+            bot.send_photo(
+                qi.config.chat_id,
+                open(fpath, 'rb'),
+                caption=caption,
+            )
+            qi.processed = True
+            qi.save()
+        os.unlink(fpath)
+    except Exception as e:
+        traceback.print_exc()
+        raise self.retry(exc=e, countdown=5)