import datetime

TODAY = datetime.date.today().isoformat()


async def test_create_meal_returns_201(auth_client, diary, meal_payload):
    response = await auth_client.post(f"/api/diary/{TODAY}/meal", json=meal_payload)
    assert response.status_code == 201


async def test_create_meal_auto_increments_order(auth_client, diary, meal_payload):
    r1 = await auth_client.post(f"/api/diary/{TODAY}/meal", json=meal_payload)
    r2 = await auth_client.post(f"/api/diary/{TODAY}/meal", json=meal_payload)
    assert r2.json()["order"] == r1.json()["order"] + 1


async def test_create_meal_first_order_is_one(auth_client, diary, meal_payload):
    # diary fixture already creates a Breakfast meal with order=0
    response = await auth_client.post(f"/api/diary/{TODAY}/meal", json=meal_payload)
    assert response.json()["order"] == 1


async def test_create_meal_uses_provided_order(auth_client, diary, meal_payload):
    response = await auth_client.post(
        f"/api/diary/{TODAY}/meal", json={**meal_payload, "order": 99}
    )
    assert response.json()["order"] == 99


async def test_create_meal_diary_not_found_returns_404(auth_client, meal_payload):
    response = await auth_client.post("/api/diary/2000-01-01/meal", json=meal_payload)
    assert response.status_code == 404


async def test_create_meal_without_auth_returns_401(client, diary, meal_payload):
    response = await client.post(f"/api/diary/{TODAY}/meal", json=meal_payload)
    assert response.status_code == 401


async def test_update_meal_returns_200(auth_client, diary, meal):
    response = await auth_client.patch(
        f"/api/diary/{TODAY}/meal/{meal.id}", json={"name": "Supper"}
    )
    assert response.status_code == 200


async def test_update_meal_changes_name(auth_client, diary, meal):
    response = await auth_client.patch(
        f"/api/diary/{TODAY}/meal/{meal.id}", json={"name": "Supper"}
    )
    assert response.json()["name"] == "Supper"


async def test_update_meal_not_found_returns_404(auth_client, diary):
    response = await auth_client.patch(
        f"/api/diary/{TODAY}/meal/99999", json={"name": "Ghost"}
    )
    assert response.status_code == 404


async def test_delete_meal_returns_204(auth_client, diary, meal):
    response = await auth_client.delete(f"/api/diary/{TODAY}/meal/{meal.id}")
    assert response.status_code == 204


async def test_delete_meal_not_found_returns_404(auth_client, diary):
    response = await auth_client.delete(f"/api/diary/{TODAY}/meal/99999")
    assert response.status_code == 404


async def test_delete_meal_without_auth_returns_401(client, diary, meal):
    response = await client.delete(f"/api/diary/{TODAY}/meal/{meal.id}")
    assert response.status_code == 401