Add GlobalSlowmodeMiddleware

podslv21_bot/bot/middleware/__init__.py

@@ -0,0 +1,3 @@
+from .slowmode import GlobalSlowmodeMiddleware
+
+__all__ = ["GlobalSlowmodeMiddleware"]

podslv21_bot/bot/middleware/slowmode.py

@@ -0,0 +1,48 @@
+import asyncio
+
+from aiogram import BaseMiddleware
+from aiogram.types import Message
+
+from podslv21_bot.bot.utils.template_renderer import TemplateRenderer
+
+
+class GlobalSlowmodeMiddleware(BaseMiddleware):
+    def __init__(self,
+                 delay: float,
+                 template_renderer: TemplateRenderer):
+        super().__init__()
+
+        self.delay = delay
+        self.renderer = template_renderer
+
+        self.lock = asyncio.Lock()
+
+    def _extract_message(self, event):
+        if isinstance(event, Message):
+            return event
+        
+        msg = getattr(event, "message", None)
+        if isinstance(msg, Message):
+            return msg
+
+        return None
+
+    async def __call__(self, handler, event, data):
+        message = self._extract_message(event)
+
+        if message:
+            if message.text.startswith("/"):
+                return await handler(event, data)
+
+            if self.lock.locked():
+                await message.answer(
+                    await self.renderer.render("messages/send/busy.j2", message)
+                )
+                return
+
+            async with self.lock:
+                result = await handler(event, data)
+
+                await asyncio.sleep(self.delay)
+
+                return result