from __future__ import annotations

import logging
from datetime import datetime

from apscheduler.schedulers.asyncio import AsyncIOScheduler
from apscheduler.triggers.cron import CronTrigger

from config import settings
from services.fill_service import FillService

logger = logging.getLogger(__name__)

_scheduler: AsyncIOScheduler | None = None


async def _auto_fill_job() -> None:
    service = FillService()
    result = await service.fill_today()
    logger.info("Auto fill result: %s", result.get("message") or result)


def start_scheduler() -> AsyncIOScheduler | None:
    global _scheduler

    if not settings.auto_fill_enabled:
        logger.info("Auto fill scheduler disabled")
        return None

    if _scheduler is not None:
        return _scheduler

    _scheduler = AsyncIOScheduler()
    _scheduler.add_job(
        _auto_fill_job,
        CronTrigger(
            hour=settings.auto_fill_hour,
            minute=settings.auto_fill_minute,
        ),
        id="daily_pts_fill",
        replace_existing=True,
    )
    _scheduler.start()
    logger.info(
        "Scheduler started: daily fill at %02d:%02d",
        settings.auto_fill_hour,
        settings.auto_fill_minute,
    )
    return _scheduler


def stop_scheduler() -> None:
    global _scheduler
    if _scheduler is not None:
        _scheduler.shutdown(wait=False)
        _scheduler = None


def reschedule_scheduler() -> None:
    from config import reload_settings

    reload_settings()
    stop_scheduler()
    start_scheduler()