import json
import os
import sys
import time
from urllib.parse import quote

from .fetcher import fetch_response


def send_matrix_message(message: str, timeout: float) -> None:
    homeserver = os.getenv("MATRIX_HOMESERVER")
    room_id = os.getenv("MATRIX_ROOM_ID")
    token = os.getenv("MATRIX_ACCESS_TOKEN")
    if not homeserver or not room_id or not token:
        return
    _join_matrix_room(homeserver, room_id, token, timeout)
    txn_id = str(int(time.time() * 1000))
    url = f"{homeserver}/_matrix/client/v3/rooms/{room_id}/send/m.room.message/{txn_id}"
    payload = json.dumps({"msgtype": "m.text", "body": message}).encode("utf-8")
    try:
        fetch_response(
            url,
            timeout=timeout,
            user_agent="service-update-alerts",
            extra_headers={"Authorization": f"Bearer {token}", "Content-Type": "application/json"},
            data=payload,
            method="PUT",
        )
    except Exception as exc:
        print(f"Matrix notification failed: {exc}", file=sys.stderr)


def _join_matrix_room(homeserver: str, room_id: str, token: str, timeout: float) -> None:
    url = f"{homeserver}/_matrix/client/v3/join/{quote(room_id, safe='')}"
    try:
        fetch_response(
            url,
            timeout=timeout,
            user_agent="service-update-alerts",
            extra_headers={"Authorization": f"Bearer {token}", "Content-Type": "application/json"},
            data=b"{}",
            method="POST",
        )
    except Exception:
        return


def send_uptime_kuma_ping(timeout: float) -> None:
    push_url = os.getenv("UPTIME_KUMA_PUSH_URL")
    if not push_url:
        return
    try:
        fetch_response(push_url, timeout=timeout, user_agent="service-update-alerts")
    except Exception as exc:
        print(f"Uptime Kuma push failed: {exc}", file=sys.stderr)