"""Pytest configuration and fixtures"""
import pytest
import tempfile
import os
from faker import Faker

from app import create_app, db
from app.models import User, Product, Order, OrderItem

fake = Faker()


@pytest.fixture(scope='function')
def app():
    """Create application for testing with isolated database"""
    db_fd, db_path = tempfile.mkstemp()
    
    app = create_app(config_name='test')
    app.config.update({
        'TESTING': True,
        'SQLALCHEMY_DATABASE_URI': f'sqlite:///{db_path}',
        'WTF_CSRF_ENABLED': False,
        'JWT_SECRET_KEY': 'test-secret-keytest-secret-keytest-secret-keytest-secret-keytest-secret-key',
        'SERVER_NAME': 'localhost.localdomain'
    })

    with app.app_context():
        db.create_all()
        yield app
        db.session.remove()
        db.drop_all()

    os.close(db_fd)
    os.unlink(db_path)


@pytest.fixture
def client(app):
    """Test client for making requests"""
    return app.test_client()


@pytest.fixture
def runner(app):
    """Test CLI runner"""
    return app.test_cli_runner()


@pytest.fixture
def db_session(app):
    """Database session for tests"""
    with app.app_context():
        yield db.session


@pytest.fixture
def admin_user(db_session):
    """Create an admin user for testing"""
    user = User(
        email=fake.email(),
        username=fake.user_name(),
        first_name=fake.first_name(),
        last_name=fake.last_name(),
        is_admin=True,
        is_active=True
    )
    user.set_password('password123')
    db_session.add(user)
    db_session.commit()
    return user


@pytest.fixture
def regular_user(db_session):
    """Create a regular user for testing"""
    user = User(
        email=fake.email(),
        username=fake.user_name(),
        first_name=fake.first_name(),
        last_name=fake.last_name(),
        is_admin=False,
        is_active=True
    )
    user.set_password('password123')
    db_session.add(user)
    db_session.commit()
    return user


@pytest.fixture
def inactive_user(db_session):
    """Create an inactive user for testing"""
    user = User(
        email=fake.email(),
        username=fake.user_name(),
        first_name=fake.first_name(),
        last_name=fake.last_name(),
        is_admin=False,
        is_active=False
    )
    user.set_password('password123')
    db_session.add(user)
    db_session.commit()
    return user


@pytest.fixture
def product(db_session):
    """Create a product for testing"""
    product = Product(
        name=fake.sentence(nb_words=4)[:-1],  # Remove period
        description=fake.paragraph(),
        price=fake.pydecimal(left_digits=2, right_digits=2, positive=True),
        stock=fake.pyint(min_value=0, max_value=100),
        image_url=fake.url()
    )
    db_session.add(product)
    db_session.commit()
    return product


@pytest.fixture
def products(db_session):
    """Create multiple products for testing"""
    products = []
    for _ in range(5):
        product = Product(
            name=fake.sentence(nb_words=4)[:-1],
            description=fake.paragraph(),
            price=fake.pydecimal(left_digits=2, right_digits=2, positive=True),
            stock=fake.pyint(min_value=0, max_value=100),
            image_url=fake.url()
        )
        db_session.add(product)
        products.append(product)
    db_session.commit()
    return products


@pytest.fixture
def auth_headers(client, regular_user):
    """Get authentication headers for a regular user"""
    response = client.post('/api/auth/login', json={
        'email': regular_user.email,
        'password': 'password123'
    })
    data = response.get_json()
    token = data['access_token']
    print(f"Auth headers token for user {regular_user.email}: {token[:50]}...")
    return {'Authorization': f'Bearer {token}'}


@pytest.fixture
def admin_headers(client, admin_user):
    """Get authentication headers for an admin user"""
    response = client.post('/api/auth/login', json={
        'email': admin_user.email,
        'password': 'password123'
    })
    data = response.get_json()
    token = data['access_token']
    print(f"Admin headers token for user {admin_user.email}: {token[:50]}...")
    return {'Authorization': f'Bearer {token}'}


@pytest.fixture
def order(db_session, regular_user, products):
    """Create an order for testing"""
    order = Order(
        user_id=regular_user.id,
        total_amount=0.0,
        shipping_address=fake.address()
    )
    db_session.add(order)
    db_session.flush()
    
    total_amount = 0
    for i, product in enumerate(products[:2]):
        quantity = fake.pyint(min_value=1, max_value=5)
        order_item = OrderItem(
            order_id=order.id,
            product_id=product.id,
            quantity=quantity,
            price=product.price
        )
        total_amount += float(product.price) * quantity
        db_session.add(order_item)
    
    order.total_amount = total_amount
    db_session.commit()
    return order