import base64
import hashlib
from pathlib import Path
from urllib.parse import parse_qs, urlparse

import pytest
from django.core.management import call_command
from django.core.exceptions import ImproperlyConfigured

from apps.attachments.delivery import signed_media_redirect
from apps.integrations.bale.providers import get_bale_provider


def test_signed_media_redirect_matches_nginx_secure_link(settings):
    settings.MEDIA_SIGNING_SECRET = "deployment-test-secret-with-enough-entropy"
    response = signed_media_redirect("tickets/2026/09/example.pdf", lifetime=300)
    parsed = urlparse(response.url)
    query = parse_qs(parsed.query)
    expires = query["expires"][0]
    expected = hashlib.md5(
        f"{expires}{parsed.path} {settings.MEDIA_SIGNING_SECRET}".encode(),
        usedforsecurity=False,
    ).digest()
    expected = base64.urlsafe_b64encode(expected).rstrip(b"=").decode()
    assert response.status_code == 302
    assert query["md5"] == [expected]


def test_bale_missing_token_is_not_silently_successful(settings):
    settings.DEBUG = False
    settings.BALE_BOT_TOKEN = ""
    with pytest.raises(ImproperlyConfigured, match="BALE_BOT_TOKEN"):
        get_bale_provider()


def test_nginx_serves_assets_without_proxying_django():
    root = Path(__file__).resolve().parents[1]
    nginx = (root / "docker" / "nginx.conf").read_text(encoding="utf-8")
    compose = (root / "docker-compose.yml").read_text(encoding="utf-8")
    assert "location /static/" in nginx
    assert "location ^~ /media/branding/" in nginx
    assert "location /protected-media/" in nginx
    assert "secure_link_md5" in nginx
    assert "proxy_pass" not in nginx
    assert "media_data:/app/media:ro" in compose
    assert "notification-worker:" in compose
    assert "  db:" not in compose


@pytest.mark.django_db
def test_notification_worker_command_starts_and_exits_in_once_mode():
    call_command("process_notifications", once=True)