import json
from typing import Optional
import requests

from .config import settings


def send_push_notification(fcm_token: str, title: str, body: str, data: Optional[dict] = None) -> bool:
    if not settings.fcm_server_key:
        return False
    payload = {
        "to": fcm_token,
        "notification": {"title": title, "body": body},
        "data": data or {},
        "priority": "high",
    }
    headers = {
        "Content-Type": "application/json",
        "Authorization": f"key={settings.fcm_server_key}",
    }
    try:
        resp = requests.post("https://fcm.googleapis.com/fcm/send", headers=headers, data=json.dumps(payload), timeout=5)
        return resp.status_code == 200
    except Exception:
        return False