from __future__ import annotations

from pathlib import Path

import pytest
from fastapi.testclient import TestClient

from app.config import ConfigError, Settings

from .conftest import AUTH, TOKEN


def test_healthz_needs_no_token(client: TestClient) -> None:
    response = client.get("/healthz")
    assert response.status_code == 200
    assert response.json()["ok"] is True
    assert isinstance(response.json()["version"], str)


@pytest.mark.parametrize(
    "headers",
    [
        {},
        {"Authorization": "Bearer wrong-token-" + "y" * 32},
        {"Authorization": TOKEN},
        {"Authorization": "Basic " + TOKEN},
    ],
)
def test_routes_reject_missing_or_wrong_token(client: TestClient, headers: dict[str, str]) -> None:
    for method, url in [("GET", "/v1/capabilities"), ("POST", "/v1/detectScenes")]:
        response = client.request(method, url, headers=headers, json={"path": "/x"})
        assert response.status_code == 401
        assert response.json()["error"]["code"] == "unauthorized"


def test_valid_token_is_accepted(client: TestClient) -> None:
    assert client.get("/v1/capabilities", headers=AUTH).status_code == 200


def test_refuses_to_start_without_a_long_token(tmp_path: Path) -> None:
    env = {"MEDIA_ROOT": str(tmp_path)}
    with pytest.raises(ConfigError):
        Settings.from_env(env)
    with pytest.raises(ConfigError):
        Settings.from_env({**env, "MEDIA_WORKER_TOKEN": "short"})
    assert Settings.from_env({**env, "MEDIA_WORKER_TOKEN": "z" * 32}).token == "z" * 32
    assert Settings.from_env({**env, "MEDIA_WORKER_INSECURE_DEV": "1"}).insecure_dev


def test_settings_validate_root_and_defaults(tmp_path: Path) -> None:
    with pytest.raises(ConfigError):
        Settings.from_env({"MEDIA_WORKER_TOKEN": "z" * 32, "MEDIA_ROOT": "relative/path"})
    settings = Settings.from_env({"MEDIA_WORKER_TOKEN": "z" * 32, "MEDIA_ROOT": str(tmp_path)})
    assert settings.host == "127.0.0.1"
    assert settings.port == 8790
    assert settings.gpu_concurrency == 1
    assert settings.max_input_bytes == 20 * 1024**3
    assert settings.max_seconds == 4 * 3600