import asyncio
import logging

from app.db.base import SessionLocal
from app.pomodoro.completion import PomodoroCompletionHandler
from app.pomodoro.service import PomodoroService

logger = logging.getLogger(__name__)

WATCH_INTERVAL_SEC = 2


async def pomodoro_watcher_loop() -> None:
    while True:
        try:
            await asyncio.sleep(WATCH_INTERVAL_SEC)
            await _tick()
        except asyncio.CancelledError:
            raise
        except Exception:
            logger.exception("Pomodoro watcher error")


async def _tick() -> None:
    db = SessionLocal()
    try:
        service = PomodoroService(db)
        service.get_status()

        pending = service.get_pending_completions()
        if not pending:
            return

        handler = PomodoroCompletionHandler(db)
        for session in pending:
            await handler.process(session)
    finally:
        db.close()