import asyncio
from typing import Optional


class ActionQueue:
    def __init__(self) -> None:
        self.queued_actions: asyncio.Queue = asyncio.Queue()
        self.idle_action: tuple = (None,[],{})
        self.queue_task = asyncio.create_task(self.run_queue())
        self.idle_action_task = None

    async def run_queue(self):
        # try:
        while True:
            if self.queued_actions.empty() and self.idle_action[0] is not None:
                self.idle_action_task = asyncio.create_task(self.idle_action[0](*(self.idle_action[1]), **(self.idle_action[2])))
            
            action = await self.queued_actions.get()
            
            if self.idle_action_task is not None:
                self.idle_action_task.cancel()
                self.idle_action_task = None
                
            if action is not None:  # If none -> Is idle action update
                await action[0](*(action[1]), **(action[2]))
                
        # except:
        #     pass

    async def add_action_to_queue(self, action, *args, **kwargs):
        await self.queued_actions.put((action, args, kwargs))

    async def set_idle_action(self, action, *args, **kwargs):
        self.idle_action = (action, args, kwargs)
        await self.queued_actions.put(None)