from fastapi import FastAPI
from fastapi.testclient import TestClient

from app.analysis.user_prefs import SHARED_USER, UserPrefStore
from app.api.routes import router
from app.config import Settings
from app.runtime import Runtime


def test_ma_alert_prefs_round_trip(tmp_path):
    store = UserPrefStore(tmp_path / "user_prefs.json")
    store.put("ma_alerts", {"1d": [200]})

    loaded = UserPrefStore(tmp_path / "user_prefs.json")
    assert loaded.get("ma_alerts") == {"1d": [200]}
    assert loaded.get("ma_alerts", user_id="other") is None


def test_corrupt_prefs_start_empty(tmp_path):
    path = tmp_path / "user_prefs.json"
    path.write_text("{not json", encoding="utf-8")
    assert UserPrefStore(path).get("ma_alerts", {"1d": []}) == {"1d": []}


def test_ma_alert_endpoints_persist(tmp_path):
    app = FastAPI()
    app.include_router(router)
    app.state.runtime = Runtime(Settings(
        manual_lines_path=tmp_path / "manual_lines.json",
        alert_state_path=tmp_path / "alert_state.json",
        user_prefs_path=tmp_path / "user_prefs.json",
    ))
    client = TestClient(app)

    assert client.get("/api/prefs/ma-alerts").json() == {"1d": []}
    assert client.put("/api/prefs/ma-alerts", json={"1d": [10, 200]}).json() == {"1d": [10, 200]}
    assert client.get("/api/prefs/ma-alerts").json() == {"1d": [10, 200]}
    assert client.put("/api/prefs/ma-alerts", json={"1d": [7]}).status_code == 400
    assert SHARED_USER in (tmp_path / "user_prefs.json").read_text(encoding="utf-8")