import pytest
from django.test import override_settings

pytestmark = pytest.mark.django_db


def test_health_endpoint_returns_ok(client):
    response = client.get("/api/system/health")

    assert response.status_code == 200
    assert response.json() == {"status": "ok"}


def test_liveness_and_readiness_endpoints(client):
    live_response = client.get("/api/system/health/live")
    ready_response = client.get("/api/system/health/ready")

    assert live_response.status_code == 200
    assert live_response.json() == {"status": "alive"}
    assert ready_response.status_code == 200
    assert ready_response.json() == {
        "status": "ready",
        "checks": {"database": True, "cache": True},
    }


def test_metrics_endpoint_exposes_low_cardinality_metrics(admin_client):
    response = admin_client.get("/api/system/metrics")

    assert response.status_code == 200
    assert response["Content-Type"].startswith("text/plain")
    content = response.content.decode()
    assert "ai_ticket_channel_messages_total" in content
    assert "ai_ticket_agent_runs_total" in content
    assert "ai_ticket_tool_calls_total" in content
    assert "ai_ticket_work_items_active" in content
    assert "ai_ticket_channel_messages_failed_recent" in content
    assert "ai_ticket_channel_messages_stuck" in content
    assert "ai_ticket_agent_runs_failed_recent" in content
    assert "ai_ticket_tool_calls_failed_recent" in content


@override_settings(METRICS_TOKEN="prometheus-secret")
def test_metrics_endpoint_accepts_bearer_token_for_prometheus(client):
    response = client.get(
        "/api/system/metrics",
        HTTP_AUTHORIZATION="Bearer prometheus-secret",
    )

    assert response.status_code == 200
    assert "ai_ticket_channel_messages_total" in response.content.decode()