import httpx

from app.core.config import get_settings


class PostalSendError(Exception):
    pass


def send_mail(
    *,
    to: str,
    from_name: str,
    from_email: str,
    subject: str,
    html_body: str,
    tag: str,
) -> tuple[int, str]:
    """Sender én e-mail via Postal. Returnerer (postal_message_id, token).
    Rejser PostalSendError ved fejl."""
    settings = get_settings()
    try:
        response = httpx.post(
            f"{settings.postal_base_url}/api/v1/send/message",
            headers={
                "X-Server-API-Key": settings.postal_api_key,
                "Content-Type": "application/json",
            },
            json={
                "to": [to],
                "from": f"{from_name} <{from_email}>",
                "sender": from_email,
                "subject": subject,
                "html_body": html_body,
                "tag": tag,
            },
            timeout=10.0,
        )
        data = response.json()
    except httpx.HTTPError as exc:
        raise PostalSendError(str(exc)) from exc

    if data.get("status") != "success":
        raise PostalSendError(str(data.get("data", data)))

    message_info = data["data"]["messages"][to]
    return message_info["id"], message_info["token"]