import uuid

import pytest
import requests

_DETECT_TIMEOUT = 60


def _assert_health_200(http_client):
    r = http_client.get("/health")
    assert r.status_code == 200
    data = r.json()
    assert data["status"] == "healthy"
    assert data.get("errorMessage") is None


@pytest.mark.cpu
def test_ft_n_01_empty_image_returns_400(http_client, empty_image, auth_headers):
    files = {"file": ("empty.jpg", empty_image, "image/jpeg")}
    r = http_client.post("/detect/image", files=files, headers=auth_headers, timeout=30)
    assert r.status_code == 400
    body = r.json()
    assert "detail" in body
    assert body["detail"] == "Image is empty"
    _assert_health_200(http_client)


@pytest.mark.cpu
def test_ft_n_02_corrupt_image_returns_400_or_422(http_client, corrupt_image, auth_headers):
    files = {"file": ("corrupt.jpg", corrupt_image, "image/jpeg")}
    r = http_client.post("/detect/image", files=files, headers=auth_headers, timeout=30)
    assert r.status_code in (400, 422)
    body = r.json()
    assert "detail" in body
    _assert_health_200(http_client)


@pytest.mark.cpu
def test_ft_n_03_loader_error_mode_detect_does_not_500(
    http_client, mock_loader_url, image_small, auth_headers
):
    cfg = requests.post(
        f"{mock_loader_url}/mock/config", json={"mode": "error"}, timeout=10
    )
    cfg.raise_for_status()
    channel_id = str(uuid.uuid4())
    headers = {**auth_headers, "X-Channel-Id": channel_id}
    files = {"file": ("small.jpg", image_small, "image/jpeg")}
    r = http_client.post("/detect/image", files=files, headers=headers, timeout=_DETECT_TIMEOUT)
    assert r.status_code != 500