feat: Implement Google Pay (#154)

Author: sveneberth

pyproject.toml

@@ -31,6 +31,7 @@ classifiers = [
     "Operating System :: OS Independent",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Topic :: Software Development :: Libraries :: Python Modules",
 ]
 
@@ -39,7 +40,7 @@ version = { attr = "viur.shop.version.__version__" }
 
 [project.optional-dependencies]
 unzer = [
-    "unzer~=1.0",
+    "unzer~=1.1",
 ]
 
 [tool.setuptools.packages.find]
@@ -49,4 +50,4 @@ where = ["src"]
 Documentation = "https://viur-shop.readthedocs.io"
 Repository = "https://github.com/viur-framework/viur-shop.git"
 "Bug Tracker" = "https://github.com/viur-framework/viur-shop/issues"
-#TODO: Changelog = "https://github.com/viur-framework/viur-shop/blob/main/CHANGELOG.md"
+Changelog = "https://github.com/viur-framework/viur-shop/releases"

src/viur/shop/data/translations.py

@@ -75,6 +75,10 @@
         "_default_text": "Sofort via Unzer",
         "_hint": "viur-shop payment provider: unzer-sofort",
     },
+    "viur.shop.payment_provider.unzer-googlepay": {
+        "_default_text": "Google Pay via Unzer",
+        "_hint": "viur-shop payment provider: unzer-googlepay",
+    },
     "viur.shop.payment_provider.prepayment": {
         "_default_text": "Prepayment",
         "_hint": "viur-shop Prepayment",

src/viur/shop/payment_providers/__init__.py

@@ -14,6 +14,7 @@
     from .unzer_abstract import UnzerAbstract
     from .unzer_bancontact import UnzerBancontact
     from .unzer_card import UnzerCard
+    from .unzer_googlepay import UnzerGooglepay
     from .unzer_ideal import UnzerIdeal
     from .unzer_paypal import UnzerPayPal
     from .unzer_sofort import UnzerSofort

src/viur/shop/payment_providers/unzer_googlepay.py

@@ -0,0 +1,70 @@
+import typing as t
+
+import unzer
+from unzer.model import PaymentType
+
+from viur.core.skeleton import SkeletonInstance
+from .unzer_abstract import UnzerAbstract
+from ..globals import SHOP_LOGGER
+
+logger = SHOP_LOGGER.getChild(__name__)
+
+
+class UnzerGooglepay(UnzerAbstract):
+    """
+    Unzer Google Pay payment method integration for the ViUR Shop.
+
+    Enables customers to pay Google Pay through the Unzer payment gateway.
+    """
+
+    name: t.Final[str] = "unzer-googlepay"
+
+    def __init__(
+        self,
+        *,
+        merchant_id: str | t.Callable[[], str],
+        merchant_name: str | t.Callable[[], str],
+        allow_credit_cards: bool = True,
+        allow_prepaid_cards: bool = True,
+        **kwargs: t.Any,
+    ) -> None:
+        super().__init__(**kwargs)
+        self._merchant_id = merchant_id
+        self._merchant_name = merchant_name
+        self.allow_credit_cards = allow_credit_cards
+        self.allow_prepaid_cards = allow_prepaid_cards
+
+    @property
+    def merchant_id(self) -> str:
+        if callable(self._merchant_id):
+            return self._merchant_id()
+        return self._merchant_id
+
+    @property
+    def merchant_name(self) -> str:
+        if callable(self._merchant_name):
+            return self._merchant_name()
+        return self._merchant_name
+
+    def get_payment_type(
+        self,
+        order_skel: SkeletonInstance,
+    ) -> PaymentType:
+        type_id = order_skel["payment"]["payments"][-1]["type_id"]
+        return unzer.Googlepay(key=type_id)
+
+    def get_checkout_start_data(
+        self,
+        order_skel: SkeletonInstance,
+    ) -> t.Any:
+        res = super().get_checkout_start_data(order_skel)
+        configuration = unzer.Googlepay(client=self.client).get_configuration()["supports"][0]
+        return res | {
+            "sandbox": self.sandbox,
+            "brands": configuration["brands"],
+            "channel": configuration["channel"],
+            "merchant_id": self.merchant_id,
+            "merchant_name": self.merchant_name,
+            "allow_credit_cards": self.allow_credit_cards,
+            "allow_prepaid_cards": self.allow_prepaid_cards,
+        }