"""Shared pytest fixtures.

Uses SQLite for speed (see ARCHITECTURE.md §4.8). Any test that needs
Postgres-specific behaviour lives in a Postgres-only fixture path (added when a
migration or query needs it).
"""

from __future__ import annotations

import os
from collections.abc import Iterator

import pytest
from fastapi.testclient import TestClient


@pytest.fixture(scope="session", autouse=True)
def _test_env() -> Iterator[None]:
    """Set minimum env vars required for `Settings()` to construct in tests."""
    os.environ.setdefault("DATABASE_URL", "sqlite:///:memory:")
    os.environ.setdefault("JWT_SECRET", "test-secret")
    os.environ.setdefault(
        "COLUMN_ENCRYPTION_KEY", "test-col-enc-key-32bytes-______________"
    )
    os.environ.setdefault("ENV", "test")
    yield


@pytest.fixture
def client() -> Iterator[TestClient]:
    from ypms.main import create_app

    app = create_app()
    with TestClient(app) as c:
        yield c