from __future__ import annotations

import hashlib
import hmac
import json
import os
from urllib import parse, request


def send(status: str, filename: str = "", detail: str = "") -> bool:
    backend = os.getenv("ASR_NOTIFY_BACKEND", "none").strip().lower()
    try:
        if backend == "telegram":
            token = os.getenv("TELEGRAM_BOT_TOKEN", "")
            chat = os.getenv("TELEGRAM_CHAT_ID", "")
            if not token or not chat:
                return False
            body = parse.urlencode({
                "chat_id": chat,
                "text": "\n".join(x for x in (status, filename, detail) if x),
            }).encode()
            req = request.Request(
                f"https://api.telegram.org/bot{token}/sendMessage",
                data=body, method="POST")
        elif backend == "hermes":
            url = os.getenv("HERMES_WEBHOOK_URL", "")
            secret = os.getenv("HERMES_WEBHOOK_SECRET", "")
            if not url or not secret:
                return False
            body = json.dumps(
                {"status": status, "filename": filename, "detail": detail},
                ensure_ascii=False).encode()
            sig = hmac.new(secret.encode(), body, hashlib.sha256).hexdigest()
            req = request.Request(
                url, data=body, method="POST",
                headers={
                    "Content-Type": "application/json",
                    "X-Webhook-Signature": sig,
                })
        else:
            return False
        with request.urlopen(req, timeout=10) as response:
            return 200 <= response.status < 300
    except Exception:
        return False