from pathlib import Path

from fastapi.testclient import TestClient

from app.automations.store import AutomationStore
from app.main import app


def _payload() -> dict[str, object]:
    return {
        "alias": "Licht bei Dunkelheit",
        "description": "Schaltet das Flurlicht unter dem Helligkeitsgrenzwert ein.",
        "trigger": {"entity_id": "sensor.hall_illuminance", "below": 10},
        "action": {
            "service": "light.turn_on",
            "entity_id": "light.hall",
            "data": {"brightness_pct": 40},
        },
    }


def test_proposal_requires_explicit_approval_before_yaml(tmp_path: Path) -> None:
    with TestClient(app) as client:
        app.state.automation_store = AutomationStore(tmp_path)
        created = client.post("/v1/automations/proposals", json=_payload())
        proposal_id = created.json()["proposal_id"]
        blocked = client.get(f"/v1/automations/proposals/{proposal_id}/yaml")
        approved = client.post(
            f"/v1/automations/proposals/{proposal_id}/approve",
            json={"expected_revision": 1},
        )
        exported = client.get(f"/v1/automations/proposals/{proposal_id}/yaml")
    assert created.status_code == 201
    assert created.json()["status"] == "draft"
    assert blocked.status_code == 409
    assert approved.json()["status"] == "approved"
    assert "service: light.turn_on" in exported.text


def test_proposal_rejects_unsafe_service_domain(tmp_path: Path) -> None:
    payload = _payload()
    payload["action"] = {
        "service": "shell_command.run",
        "entity_id": "light.hall",
        "data": {},
    }
    with TestClient(app) as client:
        app.state.automation_store = AutomationStore(tmp_path)
        response = client.post("/v1/automations/proposals", json=payload)
    assert response.status_code == 422


def test_proposal_requires_numeric_threshold(tmp_path: Path) -> None:
    payload = _payload()
    payload["trigger"] = {"entity_id": "sensor.hall_illuminance"}
    with TestClient(app) as client:
        app.state.automation_store = AutomationStore(tmp_path)
        response = client.post("/v1/automations/proposals", json=payload)
    assert response.status_code == 422