from decimal import Decimal

from django.contrib.auth.models import User
from django.test import TestCase
from django.urls import reverse

from shop.models import Cart, CartItem, CustomerAddress, Order, OrderLine, ShippingMethod, ShopSettings
from shop.tests.mixins import CreateProductsMixin


class TestOrders(TestCase, CreateProductsMixin):
    def setUp(self):
        self.product = self.create_product()
        self.user = User.objects.create_user('anakin', 'anakin@skywalker.com', 'ihatesand')
        self.cart_for_user = self.create_cart(user=self.user)
        self.anonymous_cart = self.create_cart()
        self.address = CustomerAddress.objects.create(
            vat_id='11111111H',
            full_name='Vader',
            address='Tatooine',
            address_town='Mos Eisley',
            address_zip='00001',
            address_state='Tatooine',
            address_country='Mos Eisley',
            address_phone='00000000',
            address_type=CustomerAddress.Types.BILLING,
            email=self.user.email,
            default=True,
        )
        self.shipping_method = self.create_shipping_method()
        self.settings = ShopSettings.load()
        self.settings.shared_secret = 'sq7HjrUOBfKmC576ILgskD5srU870gJ7'  # Debug secret
        self.settings.save()

    def create_cart(self, user=None):
        cart = Cart.objects.create(user=user)
        CartItem.objects.create(cart=cart, product=self.product, quantity=1)
        return cart

    def create_shipping_method(self):
        product = self.create_product(sku='SM1', name='SM1', price=Decimal('1.00'))
        method = ShippingMethod.objects.create(name='SM 1', shipping_product=product)
        return method

    def test_logged_user_orders_page(self):
        self.client.force_login(self.user)
        response = self.client.get(reverse('web:orders'))
        assert response.status_code == 200

    def test_logged_user_create_get_order_page(self):
        self.client.force_login(self.user)
        response = self.client.get(reverse('web:cart_detail'))
        assert response.status_code == 200

        # Crear pedido
        data = {
            'email': self.user.email,
            'shipping_address_full_name': self.address.full_name,
            'shipping_address': self.address.address,
            'shipping_address_town': self.address.address_town,
            'shipping_address_zip': self.address.address_zip,
            'shipping_address_state': self.address.address_state,
            'shipping_address_country': self.address.address_country,
            'shipping_address_phone': self.address.address_phone,
            'same_as_shipping': True,
            'billing_address_full_name': self.address.full_name,
            'billing_address': self.address.address,
            'billing_address_town': self.address.address_town,
            'billing_address_zip': self.address.address_zip,
            'billing_address_state': self.address.address_state,
            'billing_address_country': self.address.address_country,
            'billing_address_phone': self.address.address_phone,
            'shipping_method': self.shipping_method.pk,
        }

        response = self.client.post(reverse('web:cart_detail'), data)
        assert response.status_code == 302

        order = Order.objects.filter(user=self.user).first()
        assert order is not None

        response = self.client.get(response.url)
        assert response.status_code == 200

    def test_logged_user_create_get_order_page_invalid_data(self):
        self.client.force_login(self.user)
        response = self.client.get(reverse('web:cart_detail'))
        assert response.status_code == 200

        # Sin e-mail
        data = {
            'shipping_address_full_name': self.address.full_name,
            'shipping_address': self.address.address,
            'shipping_address_town': self.address.address_town,
            'shipping_address_zip': self.address.address_zip,
            'shipping_address_state': self.address.address_state,
            'shipping_address_country': self.address.address_country,
            'shipping_address_phone': self.address.address_phone,
            'same_as_shipping': True,
            'billing_address_full_name': self.address.full_name,
            'billing_address': self.address.address,
            'billing_address_town': self.address.address_town,
            'billing_address_zip': self.address.address_zip,
            'billing_address_state': self.address.address_state,
            'billing_address_country': self.address.address_country,
            'billing_address_phone': self.address.address_phone,
            'shipping_method': self.shipping_method.pk,
        }

        response = self.client.post(reverse('web:cart_detail'), data)
        assert response.status_code == 200

        assert not Order.objects.filter(user=self.user).exists()

    def test_order_from_cart_with_variant_uses_variant_price(self):
        size_m = self.create_attribute_value('Talla', 'M')
        variant = self.create_product_variant(self.product, sku='V1', price=Decimal('25.00'), attribute_values=[size_m])
        CartItem.objects.create(cart=self.cart_for_user, product=self.product, variant=variant, quantity=1)

        self.client.force_login(self.user)

        data = {
            'email': self.user.email,
            'shipping_address_full_name': self.address.full_name,
            'shipping_address': self.address.address,
            'shipping_address_town': self.address.address_town,
            'shipping_address_zip': self.address.address_zip,
            'shipping_address_state': self.address.address_state,
            'shipping_address_country': self.address.address_country,
            'shipping_address_phone': self.address.address_phone,
            'same_as_shipping': True,
            'billing_address_full_name': self.address.full_name,
            'billing_address': self.address.address,
            'billing_address_town': self.address.address_town,
            'billing_address_zip': self.address.address_zip,
            'billing_address_state': self.address.address_state,
            'billing_address_country': self.address.address_country,
            'billing_address_phone': self.address.address_phone,
            'shipping_method': self.shipping_method.pk,
        }

        response = self.client.post(reverse('web:cart_detail'), data)
        assert response.status_code == 302

        order = Order.objects.get(user=self.user)
        variant_line = OrderLine.objects.get(order=order, variant=variant)
        assert variant_line.price == Decimal('25.00')