import pytest


@pytest.mark.asyncio
async def test_user_cannot_add_fuel_to_foreign_car(client, auth_headers, other_auth_headers) -> None:
    created = await client.post("/api/cars", headers=auth_headers, json={"name": "Owner car"})
    car_id = created.json()["id"]

    response = await client.post(
        "/api/fuel",
        headers=other_auth_headers,
        json={
            "car_id": car_id,
            "entry_date": "2026-05-12",
            "odometer": 1000,
            "liters": 30,
            "price_per_liter": 2,
        },
    )

    assert response.status_code == 403


@pytest.mark.asyncio
async def test_fuel_crud(client, auth_headers) -> None:
    car = (await client.post("/api/cars", headers=auth_headers, json={"name": "Fuel car"})).json()
    created = await client.post(
        "/api/fuel",
        headers=auth_headers,
        json={
            "car_id": car["id"],
            "entry_date": "2026-05-12",
            "odometer": 1000,
            "liters": 30,
            "price_per_liter": 2,
        },
    )
    assert created.status_code == 201
    entry_id = created.json()["id"]

    patched = await client.patch(
        f"/api/fuel/{entry_id}",
        headers=auth_headers,
        json={"liters": 35, "price_per_liter": 3},
    )

    assert patched.status_code == 200
    assert patched.json()["total_cost"] == "105.00"
    deleted = await client.delete(f"/api/fuel/{entry_id}", headers=auth_headers)
    assert deleted.status_code == 204


@pytest.mark.asyncio
async def test_service_crud(client, auth_headers) -> None:
    car = (await client.post("/api/cars", headers=auth_headers, json={"name": "Service car"})).json()
    created = await client.post(
        "/api/service",
        headers=auth_headers,
        json={
            "car_id": car["id"],
            "entry_date": "2026-05-12",
            "service_type": "maintenance",
            "title": "Oil",
            "total_cost": 100,
        },
    )
    assert created.status_code == 201
    entry_id = created.json()["id"]

    patched = await client.patch(
        f"/api/service/{entry_id}",
        headers=auth_headers,
        json={"title": "Oil and filter", "next_due_odometer": 2000},
    )

    assert patched.status_code == 200
    assert patched.json()["title"] == "Oil and filter"
    deleted = await client.delete(f"/api/service/{entry_id}", headers=auth_headers)
    assert deleted.status_code == 204


@pytest.mark.asyncio
async def test_stats_do_not_fail_with_insufficient_data(client, auth_headers) -> None:
    car = (await client.post("/api/cars", headers=auth_headers, json={"name": "Stats car"})).json()

    response = await client.get(f"/api/cars/{car['id']}/stats", headers=auth_headers)

    assert response.status_code == 200
    assert response.json()["avg_consumption_l_per_100km"] is None