"""Test fixtures — async database and HTTP client."""

import pytest
import pytest_asyncio
from sqlalchemy.ext.asyncio import (
    create_async_engine,
    async_sessionmaker,
)
from httpx import ASGITransport, AsyncClient

from app.database import Base, get_db
from app.main import app
from app.auth import hash_password
from app.models import User

import os

DATABASE_URL = os.getenv(
    "DATABASE_URL",
    "postgresql+asyncpg://pokedexter:pokedexter_secret@localhost/pokedexter",
)


@pytest_asyncio.fixture(scope="session")
async def engine():
    """Create a fresh database for testing."""
    e = create_async_engine(DATABASE_URL, echo=False)
    async with e.begin() as conn:
        await conn.run_sync(Base.metadata.drop_all)
        await conn.run_sync(Base.metadata.create_all)
    yield e
    async with e.begin() as conn:
        await conn.run_sync(Base.metadata.drop_all)
    await e.dispose()


@pytest_asyncio.fixture
async def session(engine):
    """Per-test database session.

    Data commited her er synlig for appens egen session via HTTP client.
    Renses automatisk af _clean_db efter hver test.
    """
    maker = async_sessionmaker(bind=engine, expire_on_commit=False)
    async with maker() as s:
        yield s


@pytest_asyncio.fixture(autouse=True)
async def _clean_db(engine):
    """Slet alt data fra alle tabeller efter hver test."""
    yield
    async with engine.begin() as conn:
        for table in reversed(Base.metadata.sorted_tables):
            await conn.execute(table.delete())


@pytest_asyncio.fixture
async def client():
    """HTTP client — appen bruger sin egen DB session via get_db()."""
    transport = ASGITransport(app=app)
    async with AsyncClient(transport=transport, base_url="http://test") as ac:
        yield ac


@pytest_asyncio.fixture
async def admin_user(session):
    """Insert admin user into test DB (ryddes af _clean_db)."""
    u = User(
        username="admin",
        password_hash=hash_password("admin123"),
        role="admin",
    )
    session.add(u)
    await session.commit()
    return u


@pytest_asyncio.fixture
async def normal_user(session):
    """Insert normal user into test DB (ryddes af _clean_db)."""
    u = User(
        username="testuser",
        password_hash=hash_password("test123"),
        role="user",
    )
    session.add(u)
    await session.commit()
    return u


@pytest_asyncio.fixture
async def admin_token(client, admin_user):
    """Log in as admin and return the JWT token."""
    resp = await client.post("/api/login", json={
        "username": "admin",
        "password": "admin123",
    })
    assert resp.status_code == 200
    return resp.cookies.get("token")


@pytest_asyncio.fixture
async def user_token(client, normal_user):
    """Log in as normal user and return the JWT token."""
    resp = await client.post("/api/login", json={
        "username": "testuser",
        "password": "test123",
    })
    assert resp.status_code == 200
    return resp.cookies.get("token")