import pytest

from l4d2web.app import create_app
from l4d2web.auth import hash_password
from l4d2web.db import init_db, session_scope
from l4d2web.models import User


@pytest.fixture
def client(tmp_path, monkeypatch):
    db_url = f"sqlite:///{tmp_path/'auth.db'}"
    monkeypatch.setenv("DATABASE_URL", db_url)
    app = create_app({"TESTING": True, "DATABASE_URL": db_url, "SECRET_KEY": "test"})
    init_db()
    return app.test_client()


@pytest.fixture
def seed_user(tmp_path, monkeypatch):
    db_url = f"sqlite:///{tmp_path/'seed.db'}"
    monkeypatch.setenv("DATABASE_URL", db_url)
    app = create_app({"TESTING": True, "DATABASE_URL": db_url, "SECRET_KEY": "test"})
    init_db()
    with app.app_context():
        with session_scope() as session:
            user = User(username="alice", password_digest=hash_password("secret"), admin=False)
            session.add(user)
            session.flush()
            user_id = user.id
    return user_id


def test_public_signup(client) -> None:
    response = client.post("/signup", data={"username": "alice", "password": "secret"})
    assert response.status_code == 302


def test_login_sets_session(client) -> None:
    with session_scope() as session:
        session.add(User(username="alice", password_digest=hash_password("secret"), admin=False))

    response = client.post("/login", data={"username": "alice", "password": "secret"})
    assert response.status_code == 302

    with client.session_transaction() as sess:
        assert sess.get("user_id") is not None