HelpChannels: implement move_idle_channels

Make all in-use channels dormant if idle or schedule the move if still
active. This is intended to clean up the in-use channels when the bot
restarts and has lost the tasks it had scheduled in another life.

1 files changed, 10 insertions, 1 deletions

diff --git a/bot/cogs/help_channels.py b/bot/cogs/help_channels.py
index c440d166c..c8c437145 100644
--- a/bot/cogs/help_channels.py
+++ b/bot/cogs/help_channels.py
@@ -162,7 +162,16 @@ class HelpChannels(Scheduler, commands.Cog):
         self.ready.set()
 
     async def move_idle_channels(self) -> None:
-        """Make all idle in-use channels dormant."""
+        """Make all in-use channels dormant if idle or schedule the move if still active."""
+        idle_seconds = constants.HelpChannels.idle_minutes * 60
+
+        for channel in self.get_category_channels(self.in_use_category):
+            time_elapsed = await self.get_idle_time(channel)
+            if time_elapsed > idle_seconds:
+                await self.move_to_dormant(channel)
+            else:
+                data = ChannelTimeout(channel, idle_seconds - time_elapsed)
+                self.schedule_task(self.bot.loop, channel.id, data)
 
     async def move_to_available(self) -> None:
         """Make a channel available."""