from __future__ import annotations

import json

import pytest
from django.test import Client, override_settings

from yksa_kit.conf import cache_key, user_agent
from yksa_kit.settings import env_bool, env_list, read_secret


@pytest.mark.django_db
def test_health_reports_the_database():
    response = Client().get("/health/")
    assert response.status_code == 200
    assert json.loads(response.content)["database"] == "connected"


def test_cache_keys_are_namespaced_per_service():
    """Two services share one Redis; an unnamespaced key merges their budgets."""
    assert cache_key("host_rl", "example.com") == "kit:host_rl:example.com"


def test_user_agent_falls_back_to_the_service_slug():
    assert user_agent().startswith("yksa-kit/")


@override_settings(YKSA_USER_AGENT="yksa-tdas/0.1 (+https://tdas.tmtc.yksa.space)")
def test_user_agent_is_overridable():
    assert "tdas" in user_agent()


def test_env_bool_accepts_the_spellings_compose_files_actually_use(monkeypatch):
    for raw in ("1", "true", "TRUE", "True", "yes", "on"):
        monkeypatch.setenv("YKSA_TEST_FLAG", raw)
        assert env_bool("YKSA_TEST_FLAG") is True
    monkeypatch.setenv("YKSA_TEST_FLAG", "0")
    assert env_bool("YKSA_TEST_FLAG") is False
    monkeypatch.delenv("YKSA_TEST_FLAG")
    assert env_bool("YKSA_TEST_FLAG", default=True) is True


def test_env_list_splits_and_strips(monkeypatch):
    monkeypatch.setenv("YKSA_TEST_HOSTS", "a.example, b.example ,")
    assert env_list("YKSA_TEST_HOSTS") == ["a.example", "b.example"]


def test_read_secret_falls_back_to_the_environment(monkeypatch):
    monkeypatch.setenv("YKSA_TEST_SECRET", "from-env")
    assert read_secret("yksa_test_secret") == "from-env"
    assert read_secret("yksa_absent_secret") is None