# employees/api_client.py
import requests
from django.conf import settings
from django.http import HttpRequest
from django.urls import reverse


class APIError(Exception):
    pass


def _json_safe(x):
    try:
        from phonenumber_field.phonenumber import PhoneNumber
    except Exception:
        PhoneNumber = None
    if isinstance(x, dict):
        return {k: _json_safe(v) for k, v in x.items()}
    if isinstance(x, (list, tuple)):
        return [_json_safe(v) for v in x]
    if PhoneNumber and isinstance(x, PhoneNumber):
        return x.as_e164 or x.raw_input or str(x)
    return x


def _abs_url(
    request: HttpRequest, url_name: str, url_kwargs: dict | None = None
) -> str:
    rel = reverse(url_name, kwargs=url_kwargs or None)
    return request.build_absolute_uri(rel)


def api_post(request: HttpRequest, url_name: str, payload: dict, **kwargs):
    url = _abs_url(request, url_name)
    payload = _json_safe(payload or {})
    headers = {"Accept": "application/json"}
    try:
        resp = requests.post(url, json=payload, headers=headers, timeout=10, **kwargs)
    except requests.RequestException as e:
        raise APIError(f"api_network_error: {e}")
    try:
        data = resp.json()
    except ValueError:
        # ← Вот тут будем видеть «почему»
        snippet = (resp.text or "")[:500]
        raise APIError(f"api_bad_json status={resp.status_code} body={snippet!r}")
    return resp.status_code, data


def _session_cookies(request: HttpRequest) -> dict:
    sid_name = getattr(settings, "SESSION_COOKIE_NAME", "sessionid")
    sid_value = request.COOKIES.get(sid_name)
    return {sid_name: sid_value} if sid_value else {}


def api_get(
    request: HttpRequest,
    url_name: str,
    params: dict | None = None,
    url_kwargs: dict | None = None,
    **req_kwargs,
):
    url = _abs_url(request, url_name, url_kwargs)
    headers = {"Accept": "application/json"}
    cookies = _session_cookies(request)
    try:
        resp = requests.get(
            url,
            params=params or {},
            headers=headers,
            cookies=cookies,
            timeout=10,
            **req_kwargs,
        )
    except requests.RequestException as e:
        raise APIError(f"api_network_error: {e}")
    try:
        data = resp.json()
    except ValueError:
        snippet = (resp.text or "")[:500]
        raise APIError(f"api_bad_json status={resp.status_code} body={snippet!r}")
    return resp.status_code, data