"""Per-test database setup for the Cyclone test suite.

Every test gets a fresh SQLite DB at ``tmp_path/test.db`` so the suite
can run in parallel and never touches the user's ``~/.local/share/cyclone``
database. ``db.init_db()`` is idempotent — tests that already call it
explicitly are unaffected (the second call short-circuits).

This fixture exists because the SQLAlchemy-backed ``CycloneStore``
requires the engine to be initialized before any DB access, whereas the
old in-memory store did not. Adding the init here keeps existing test
modules (test_api.py, test_api_835.py, test_api_gets.py,
test_api_parse_persists.py) working unchanged.

Auth posture: ``CYCLONE_AUTH_DISABLED`` defaults to ``"1"`` here so the
existing test suite (700+ tests that don't log in) continues to pass
unmodified. Tests in ``test_auth_*`` modules explicitly re-enable auth
so they exercise the real ``get_current_user`` / ``matrix_gate`` paths.
"""

from __future__ import annotations

import os

# Must be set before ``cyclone.api`` is imported so ``get_current_user``
# / ``matrix_gate`` see the env var. The module-level ``AUTH_DISABLED``
# flag in ``cyclone.auth.deps`` is flipped per-test below.
os.environ.setdefault("CYCLONE_AUTH_DISABLED", "1")

import pytest


@pytest.fixture(autouse=True)
def _auto_init_db(tmp_path, monkeypatch, request):
    """Point CYCLONE_DB_URL at a per-test SQLite file and init the schema.

    Also wires a fresh ``EventBus`` onto ``app.state`` because ``TestClient``
    does not invoke the FastAPI lifespan handler unless used as a context
    manager. The bus is reset between tests so subscribers don't leak.

    Auth posture is set per-test from the test module's name: legacy
    tests (any module not starting with ``test_auth``) run with
    ``AUTH_DISABLED=True`` so they hit the API without logging in;
    ``test_auth_*`` modules run with ``AUTH_DISABLED=False`` so they
    exercise the real ``get_current_user`` / ``matrix_gate`` paths.
    """
    monkeypatch.setenv("CYCLONE_DB_URL", f"sqlite:///{tmp_path}/test.db")
    from cyclone import db
    from cyclone.api import app
    from cyclone.auth import deps as _auth_deps
    from cyclone.pubsub import EventBus

    test_module = request.node.module.__name__
    if test_module.startswith("test_auth"):
        _auth_deps.AUTH_DISABLED = False
    else:
        _auth_deps.AUTH_DISABLED = True

    db._reset_for_tests()
    db.init_db()
    app.state.event_bus = EventBus()
    try:
        yield
    finally:
        app.state.event_bus = None
        db._reset_for_tests()