import asyncio
import logging
import os
from typing import Dict

import httpx

from .reminders import close_redis, pop_due_reminders

logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(levelname)s] %(name)s: %(message)s")
logger = logging.getLogger("daarion-reminder-worker")

POLL_SECONDS = float(os.getenv("DAARION_REMINDER_POLL_SECONDS", "2"))
TELEGRAM_TIMEOUT = float(os.getenv("DAARION_REMINDER_TELEGRAM_TIMEOUT", "20"))

AGENT_TOKEN_ENV: Dict[str, str] = {
    "daarwizz": "DAARWIZZ_TELEGRAM_BOT_TOKEN",
    "helion": "HELION_TELEGRAM_BOT_TOKEN",
    "greenfood": "GREENFOOD_TELEGRAM_BOT_TOKEN",
    "agromatrix": "AGROMATRIX_TELEGRAM_BOT_TOKEN",
    "alateya": "ALATEYA_TELEGRAM_BOT_TOKEN",
    "nutra": "NUTRA_TELEGRAM_BOT_TOKEN",
    "druid": "DRUID_TELEGRAM_BOT_TOKEN",
    "clan": "CLAN_TELEGRAM_BOT_TOKEN",
    "eonarch": "EONARCH_TELEGRAM_BOT_TOKEN",
    "senpai": "SENPAI_TELEGRAM_BOT_TOKEN",
    "oneok": "ONEOK_TELEGRAM_BOT_TOKEN",
    "soul": "SOUL_TELEGRAM_BOT_TOKEN",
    "yaromir": "YAROMIR_TELEGRAM_BOT_TOKEN",
    "sofiia": "SOFIIA_TELEGRAM_BOT_TOKEN",
}


def _token_for_agent(agent_id: str) -> str:
    env = AGENT_TOKEN_ENV.get((agent_id or "").lower(), "")
    return os.getenv(env, "") if env else ""


async def _send_reminder(item: Dict[str, str]) -> bool:
    agent_id = str(item.get("agent_id", ""))
    chat_id = str(item.get("chat_id", ""))
    reminder_text = str(item.get("text", "")).strip()
    due_at = str(item.get("due_at", ""))

    token = _token_for_agent(agent_id)
    if not token:
        logger.warning("reminder_skip_no_token agent=%s reminder_id=%s", agent_id, item.get("reminder_id"))
        return False

    if not chat_id or not reminder_text:
        logger.warning("reminder_skip_invalid_payload reminder_id=%s", item.get("reminder_id"))
        return False

    body = {
        "chat_id": chat_id,
        "text": f"⏰ Нагадування ({agent_id})\n\n{reminder_text}\n\n🕒 {due_at}",
    }

    url = f"https://api.telegram.org/bot{token}/sendMessage"
    async with httpx.AsyncClient(timeout=TELEGRAM_TIMEOUT) as client:
        resp = await client.post(url, json=body)
        if resp.status_code != 200:
            logger.warning(
                "reminder_send_failed reminder_id=%s status=%s body=%s",
                item.get("reminder_id"),
                resp.status_code,
                resp.text[:300],
            )
            return False

    logger.info("reminder_sent reminder_id=%s agent=%s chat=%s", item.get("reminder_id"), agent_id, chat_id)
    return True


async def worker_loop() -> None:
    logger.info("reminder_worker_started poll_seconds=%s", POLL_SECONDS)
    while True:
        try:
            items = await pop_due_reminders(limit=20)
            if items:
                for item in items:
                    try:
                        await _send_reminder(item)
                    except Exception:
                        logger.exception("reminder_send_exception reminder_id=%s", item.get("reminder_id"))
        except asyncio.CancelledError:
            raise
        except Exception:
            logger.exception("reminder_worker_cycle_failed")
        await asyncio.sleep(POLL_SECONDS)


if __name__ == "__main__":
    try:
        asyncio.run(worker_loop())
    finally:
        try:
            asyncio.run(close_redis())
        except Exception:
            pass