"""Daily reminder cron job for JIGAIDO.

Run with: python -m cron
Or schedule via systemd timer / cron.
"""

import asyncio
import logging
import os
import sys
import time

# Add project root to path
sys.path.insert(0, os.path.dirname(__file__))

import db

logging.basicConfig(
    format="%(asctime)s %(levelname)s %(name)s: %(message)s",
    level=logging.INFO,
)
log = logging.getLogger(__name__)

# Token from environment
BOT_TOKEN = os.environ.get("JIGAIDO_BOT_TOKEN", "")

REMINDER_WINDOW_DAYS = 7


async def send_reminder(user_telegram_id: int, bounty: dict, bot) -> None:
    days_left = (bounty["due_date_ts"] - int(time.time())) // 86400
    if days_left < 0:
        urgency = "OVERDUE"
    elif days_left == 0:
        urgency = "TODAY"
    else:
        urgency = f"{days_left} days left"

    due_str = time.strftime("%Y-%m-%d", time.localtime(bounty["due_date_ts"]))
    text = f"⏰ Reminder: bounty #{bounty['id']}"
    if bounty["text"]:
        text += f" — {bounty['text']}"
    text += f"\nDue: {due_str} ({urgency})"

    try:
        await bot.send_message(chat_id=user_telegram_id, text=text, disable_web_page_preview=True)
        log.info(f"Reminder sent to {user_telegram_id} for bounty #{bounty['id']}")
    except Exception as e:
        log.error(f"Failed to send reminder to {user_telegram_id}: {e}")


async def run_reminders() -> None:
    if not BOT_TOKEN:
        log.error("JIGAIDO_BOT_TOKEN not set")
        return

    from telegram import Bot
    bot = Bot(BOT_TOKEN)

    user_ids = db.get_all_user_ids()
    log.info(f"Running reminders for {len(user_ids)} users...")

    for user_telegram_id in user_ids:
        due_bounties = db.get_bounties_due_soon(user_telegram_id, REMINDER_WINDOW_DAYS)
        for bounty in due_bounties:
            await send_reminder(user_telegram_id, dict(bounty), bot)
            db.log_reminder(user_telegram_id, bounty["id"])

    log.info("Reminder run complete.")


def main() -> None:
    asyncio.run(run_reminders())


if __name__ == "__main__":
    main()