from app_class import AppClass
from config import Config
from trigger import Trigger
import asyncio
from asyncio import Task


class TriggerScheduler(AppClass):
    def __init__(self, _config: Config) -> None:
        super().__init__(_config)
        self.tasks: list[Task] = []
        
    async def callback_trigger(self, _trigger: Trigger) -> None:
        """Run a callback_trigger with a specific name and check its status at a given interval."""
        await _trigger.async_run()
        while True:
            trigger_state = "active" if _trigger.active else "not active"
            self.log.debug("Checking state of trigger %s, state: %s", _trigger.name, trigger_state)
            await asyncio.sleep(_trigger.config.interval_in_seconds)
            
    async def run_once_trigger(self, _trigger: Trigger) -> None:
        """Run a trigger with a specific name at a given interval."""
        while True:
            _trigger.run()
            trigger_state = "active" if _trigger.active else "not active"
            self.log.debug("Checking state of trigger %s, state: %s", _trigger.name, trigger_state)
            await asyncio.sleep(_trigger.config.interval_in_seconds)

    def start_trigger(self, _trigger: Trigger) -> None:
        """Start a new trigger."""
        if _trigger.config.type == "callback":
            task = asyncio.create_task(self.callback_trigger(_trigger))
        else:
            task = asyncio.create_task(self.run_once_trigger(_trigger))
        self.tasks.append(task)

    async def stop_triggers(self) -> None:
        """Stop all triggers."""
        for task in self.tasks:
            task.cancel()
        await asyncio.gather(*self.tasks, return_exceptions=True)

    async def run(self) -> None:
        """Run the scheduler and keep it alive until stopped."""
        try:
            while True:
                await asyncio.sleep(1)  # Keep the main function alive
        except asyncio.exceptions.CancelledError:
            self.log.info("Exiting, stopping all triggers")
            await self.stop_triggers()