from unittest.mock import MagicMock, patch

import pytest
from fastapi.testclient import TestClient

from app.db import get_db
from app.main import app


def _fake_db():
    session = MagicMock()
    session.execute.return_value = None
    yield session


@pytest.fixture(autouse=True)
def override_get_db():
    app.dependency_overrides[get_db] = _fake_db
    yield
    del app.dependency_overrides[get_db]


def test_health_ok():
    with patch("app.services.metube_client.MeTubeClient.health", return_value=True):
        client = TestClient(app)
        response = client.get("/api/health")

    assert response.status_code == 200
    body = response.json()
    assert body["status"] == "ok"
    assert body["database"] == "ok"
    assert body["metube"] == "ok"


def test_health_metube_unreachable():
    with patch("app.services.metube_client.MeTubeClient.health", return_value=False):
        client = TestClient(app)
        response = client.get("/api/health")

    assert response.status_code == 200
    body = response.json()
    assert body["metube"] == "error"