"""Test models"""
import pytest
from decimal import Decimal
from datetime import datetime
from app.models import User, Product, Order, OrderItem


class TestUserModel:
    """Test User model"""

    @pytest.mark.unit
    def test_user_creation(self, db_session):
        """Test creating a user"""
        user = User(
            email='test@example.com',
            username='testuser',
            first_name='Test',
            last_name='User',
            is_admin=False,
            is_active=True
        )
        user.set_password('password123')
        db_session.add(user)
        db_session.commit()

        assert user.id is not None
        assert user.email == 'test@example.com'
        assert user.username == 'testuser'
        assert user.first_name == 'Test'
        assert user.last_name == 'User'

    @pytest.mark.unit
    def test_user_password_hashing(self, db_session):
        """Test password hashing and verification"""
        user = User(email='test@example.com', username='testuser')
        user.set_password('password123')
        db_session.add(user)
        db_session.commit()

        assert user.check_password('password123') is True
        assert user.check_password('wrongpassword') is False

    @pytest.mark.unit
    def test_user_to_dict(self, db_session):
        """Test user serialization to dictionary"""
        user = User(
            email='test@example.com',
            username='testuser',
            first_name='Test',
            last_name='User'
        )
        user.set_password('password123')
        db_session.add(user)
        db_session.commit()

        user_dict = user.to_dict()
        assert user_dict['email'] == 'test@example.com'
        assert user_dict['username'] == 'testuser'
        assert 'password' not in user_dict
        assert 'password_hash' not in user_dict

    @pytest.mark.unit
    def test_user_repr(self, db_session):
        """Test user string representation"""
        user = User(email='test@example.com', username='testuser')
        user.set_password('password123')
        db_session.add(user)
        db_session.commit()

        assert repr(user) == '<User testuser>'


class TestProductModel:
    """Test Product model"""

    @pytest.mark.unit
    def test_product_creation(self, db_session):
        """Test creating a product"""
        product = Product(
            name='Test Product',
            description='A test product',
            price=Decimal('99.99'),
            stock=10,
            image_url='https://example.com/product.jpg'
        )
        db_session.add(product)
        db_session.commit()

        assert product.id is not None
        assert product.name == 'Test Product'
        assert product.price == Decimal('99.99')
        assert product.stock == 10
        assert product.is_active is True

    @pytest.mark.unit
    def test_product_to_dict(self, db_session):
        """Test product serialization to dictionary"""
        product = Product(
            name='Test Product',
            description='A test product',
            price=Decimal('99.99'),
            stock=10
        )
        db_session.add(product)
        db_session.commit()

        product_dict = product.to_dict()
        assert product_dict['name'] == 'Test Product'
        assert product_dict['price'] == 99.99
        assert isinstance(product_dict['created_at'], str)
        assert isinstance(product_dict['updated_at'], str)

    @pytest.mark.unit
    def test_product_defaults(self, db_session):
        """Test product default values"""
        product = Product(
            name='Test Product',
            price=Decimal('9.99')
        )
        db_session.add(product)
        db_session.commit()

        assert product.stock == 0
        assert product.is_active is True
        assert product.description is None
        assert product.image_url is None

    @pytest.mark.unit
    def test_product_repr(self, db_session):
        """Test product string representation"""
        product = Product(name='Test Product', price=Decimal('9.99'))
        db_session.add(product)
        db_session.commit()

        assert repr(product) == '<Product Test Product>'


class TestOrderModel:
    """Test Order model"""

    @pytest.mark.unit
    def test_order_creation(self, db_session, regular_user):
        """Test creating an order"""
        order = Order(
            user_id=regular_user.id,
            total_amount=Decimal('199.99'),
            shipping_address='123 Test St'
        )
        db_session.add(order)
        db_session.commit()

        assert order.id is not None
        assert order.user_id == regular_user.id
        assert order.total_amount == Decimal('199.99')

    @pytest.mark.unit
    def test_order_to_dict(self, db_session, regular_user):
        """Test order serialization to dictionary"""
        order = Order(
            user_id=regular_user.id,
            total_amount=Decimal('199.99'),
            shipping_address='123 Test St'
        )
        db_session.add(order)
        db_session.commit()

        order_dict = order.to_dict()
        assert order_dict['user_id'] == regular_user.id
        assert order_dict['total_amount'] == 199.99
        assert isinstance(order_dict['created_at'], str)


class TestOrderItemModel:
    """Test OrderItem model"""

    @pytest.mark.unit
    def test_order_item_creation(self, db_session, order, product):
        """Test creating an order item"""
        order_item = OrderItem(
            order_id=order.id,
            product_id=product.id,
            quantity=2,
            price=product.price
        )
        db_session.add(order_item)
        db_session.commit()

        assert order_item.id is not None
        assert order_item.order_id == order.id
        assert order_item.product_id == product.id
        assert order_item.quantity == 2

    @pytest.mark.unit
    def test_order_item_to_dict(self, db_session, order, product):
        """Test order item serialization to dictionary"""
        order_item = OrderItem(
            order_id=order.id,
            product_id=product.id,
            quantity=2,
            price=product.price
        )
        db_session.add(order_item)
        db_session.commit()

        item_dict = order_item.to_dict()
        assert item_dict['order_id'] == order.id
        assert item_dict['product_id'] == product.id
        assert item_dict['quantity'] == 2