import uuid

import httpx

from ..config import settings


class BonvoiceError(Exception):
    def __init__(self, message: str, status_code: int | None = None) -> None:
        super().__init__(message)
        self.status_code = status_code


async def initiate_outbound_call(
    *,
    destination: str,
    leg_a_caller_id: str,
    voicebot_url: str,
    event_id: str | None = None,
) -> dict:
    if not settings.bonvoice_token:
        raise BonvoiceError("Bonvoice credentials are not configured", status_code=503)

    payload = {
        "autocallType": "5",
        "destination": destination,
        "legACallerID": leg_a_caller_id,
        "eventID": event_id or uuid.uuid4().hex.upper(),
        "voicebotProvider": "BONVOICE",
        "voicebotURL": voicebot_url,
    }
    headers = {
        "Authorization": f"Token {settings.bonvoice_token}",
        "Content-Type": "application/json",
    }
    async with httpx.AsyncClient(timeout=30.0) as client:
        response = await client.post(settings.bonvoice_api_url, headers=headers, json=payload)

    if response.status_code >= 400:
        raise BonvoiceError(
            f"Bonvoice API rejected the call ({response.status_code})",
            status_code=502,
        )

    body = response.json()
    if body.get("responseCode") not in (200, "200"):
        raise BonvoiceError(
            body.get("responseDescription") or "Bonvoice API returned an error",
            status_code=502,
        )
    return body