from datetime import datetime
from typing import List

from core.logger import get_logger


logger = get_logger("core.notifications")


class Notifier:
    def __init__(self, app: "OverUB") -> None:
        self.app = app
        cfg = app.config.get().get("notifications", {})
        self.channels: List[str] = cfg.get("channels", ["telegram"])
        self.enabled = bool(cfg.get("enabled", False))
        self.quiet_hours = cfg.get("quiet_hours", {})
        self.events = cfg.get("events", [])

    async def notify(self, text: str, event: str = "") -> None:
        if not self.enabled:
            return
        if event and self.events and event not in self.events:
            return
        if self._in_quiet_hours():
            return
        if "telegram" in self.channels and self.app.client.client:
            try:
                await self.app.client.client.send_message("me", text)
            except Exception:
                logger.exception("Telegram notification failed")
        if "desktop" in self.channels:
            logger.info("Desktop notification: %s", text)
        if "email" in self.channels:
            logger.info("Email notification: %s", text)
        if "webhook" in self.channels:
            logger.info("Webhook notification: %s", text)

    def _in_quiet_hours(self) -> bool:
        start = self.quiet_hours.get("start")
        end = self.quiet_hours.get("end")
        if not start or not end:
            return False
        now = datetime.now().strftime("%H:%M")
        if start <= end:
            return start <= now <= end
        return now >= start or now <= end