"""Tests für src.routes.health — Health-Check mit Readiness."""

from __future__ import annotations

from unittest.mock import MagicMock, patch

from src.app import create_app


class TestHealthStatus:
    """Tests für /health Endpoint."""

    def setup_method(self) -> None:
        """Jeder Test bekommt eine frische App mit gemocktem Redis."""
        with patch("src.queue.handler.redis.Redis"):
            self.app = create_app()
            self.client = self.app.test_client()

    def test_health_status_ok(self) -> None:
        """GET /health → 200 mit Status-JSON."""
        self.app.queue_handler = MagicMock(queue_size=MagicMock(return_value=42))  # type: ignore[assignment]
        response = self.client.get("/health")
        assert response.status_code == 200
        data = response.get_json()
        assert data["status"] == "ok"
        assert "queue_size" in data
        assert "python_version" in data
        assert "platform" in data

    def test_health_queue_size_integer(self) -> None:
        """queue_size ist ein Integer."""
        self.app.queue_handler = MagicMock(queue_size=MagicMock(return_value=7))  # type: ignore[assignment]
        response = self.client.get("/health")
        data = response.get_json()
        assert isinstance(data["queue_size"], int)
        assert data["queue_size"] == 7


class TestHealthReady:
    """Tests für /health/ready Endpoint."""

    def setup_method(self) -> None:
        """Jeder Test bekommt eine frische App."""
        with patch("src.queue.handler.redis.Redis"):
            self.app = create_app()
            self.client = self.app.test_client()

    def test_health_ready_redis_alive(self) -> None:
        """Redis ping erfolgreich → ready=true."""
        response = self.client.get("/health/ready")
        # Redis wird gemockt, ping sollte successful sein
        assert response.status_code == 200
        data = response.get_json()
        assert data["ready"] is True

    def test_health_ready_redis_fails(self) -> None:
        """Redis ping fehlschlägt → ready=false, 503."""
        with patch.object(
            self.app.queue_handler.redis, "ping", side_effect=Exception("Redis down")
        ):
            response = self.client.get("/health/ready")
            assert response.status_code == 503
            data = response.get_json()
            assert data["ready"] is False
            assert "reason" in data