[TASK] Allow FeVariant to have a price

Classes/Domain/Model/Cart/FeVariant.php

@@ -11,7 +11,7 @@
  * LICENSE file that was distributed with this source code.
  */
 
-class FeVariant
+class FeVariant implements FeVariantInterface
 {
     protected ?Product $product = null;
 

Classes/Domain/Model/Cart/FeVariantInterface.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace Extcode\Cart\Domain\Model\Cart;
+
+interface FeVariantInterface
+{
+    public function getId(): string;
+
+    public function getVariantData(): array;
+
+    public function getTitle(): string;
+
+    public function getSku(): string;
+
+    public function getValue(): string;
+}

Classes/Domain/Model/Cart/FeVariantWithPriceInterface.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace Extcode\Cart\Domain\Model\Cart;
+
+interface FeVariantWithPriceInterface extends FeVariantInterface
+{
+    public function getPrice(): float;
+}

Classes/Domain/Model/Cart/Product.php

@@ -37,7 +37,7 @@ class Product
 
     protected array $beVariants = [];
 
-    protected ?FeVariant $feVariant = null;
+    protected ?FeVariantInterface $feVariant = null;
 
     protected array $additional = [];
 
@@ -69,7 +69,7 @@ public function __construct(
         protected TaxClass $taxClass,
         protected int $quantity,
         protected bool $isNetPrice = false,
-        ?FeVariant $feVariant = null
+        ?FeVariantInterface $feVariant = null
     ) {
         if ($feVariant) {
             $this->feVariant = $feVariant;
@@ -153,7 +153,7 @@ public function changeVariantsQuantity(array $variantQuantity): void
         }
     }
 
-    public function getFeVariant(): ?FeVariant
+    public function getFeVariant(): ?FeVariantInterface
     {
         return $this->feVariant;
     }
@@ -554,9 +554,16 @@ protected function calcGross(): void
                 foreach ($this->beVariants as $variant) {
                     $sum += $variant->getGross();
                 }
+                if ($this->feVariant instanceof FeVariantWithPriceInterface) {
+                    $sum += $this->feVariant->getPrice();
+                }
                 $this->gross = $sum;
             } else {
-                $this->gross = $this->getBestPrice() * $this->quantity;
+                $sum = $this->getBestPrice();
+                if ($this->feVariant instanceof FeVariantWithPriceInterface) {
+                    $sum += $this->feVariant->getPrice();
+                }
+                $this->gross = $sum * $this->quantity;
             }
         } else {
             $this->calcNet();
@@ -582,9 +589,16 @@ protected function calcNet(): void
                 foreach ($this->beVariants as $variant) {
                     $sum += $variant->getNet();
                 }
+                if ($this->feVariant instanceof FeVariantWithPriceInterface) {
+                    $sum += $this->feVariant->getPrice();
+                }
                 $this->net = $sum;
             } else {
-                $this->net = $this->getBestPrice() * $this->quantity;
+                $sum = $this->getBestPrice();
+                if ($this->feVariant instanceof FeVariantWithPriceInterface) {
+                    $sum += $this->feVariant->getPrice();
+                }
+                $this->net = $sum * $this->quantity;
             }
         } else {
             $this->calcGross();

Documentation/Changelog/9.0/Feature-465-DateFormatInBackendModuleFilter.rst

@@ -32,6 +32,7 @@ Before this the dates in the backend were always in the format `d.m.Y`, now it
 
  Migration
  =========
+
  To get the old formatting you need to overwrite the above shown TypoScript
  constants:
 

Documentation/Changelog/9.4/Feature-615-AllowFeVariantToHaveAPrice.rst

@@ -0,0 +1,50 @@
+.. include:: ../../Includes.rst.txt
+
+===============================================
+Feature: #615 - Allow FeVariant to have a price
+===============================================
+
+See `Issue 615 <https://github.com/extcode/cart/issues/615>`__
+
+Description
+===========
+
+The default `FeVariant` implementation cannot have a price. In order to be able
+to process own `FeVariant`s with a price, the method arguments should use a
+`FeVariantInterface` instead.
+
+The `FeVariantWithPriceInterface` extends the `FeVariantInterface` with a
+`getPrice()` method.
+The price calculation of a product then takes into account whether the
+`FeVariant` implements the `FeVariantWithPriceInterface` to add this price as
+well.
+
+To create an own `FeVariant` for a `Product`, you have to replace the
+`CreateCartFrontendVariants` EventListener.
+
+.. code-block:: yaml
+   :caption: EXT:my_extension/Configuration/Services.yaml
+
+   Extcode\CartProducts\EventListener\Create\CreateCartFrontendVariants: null
+
+   MyVendor\MyExtension\EventListener\Create\CreateCartFrontendVariants:
+     tags:
+       - name: event.listener
+         identifier: 'cart-products--create--create-cart-frontend-variants'
+         event: Extcode\CartProducts\Event\RetrieveProductsFromRequestEvent
+         after: 'cart-products--create--load-product'
+
+
+This is very flexible. You can implement `FeVariant`s as checkboxes and add some
+surcharge for some options. Another idea is to calculate the price markup
+depending on the number of characters entered.How you can use this is up to you.
+However, you should test carefully whether the price calculation for the product
+price then fits, especially if you use more than one front-end variant with a
+price for a product.
+
+Impact
+======
+
+No Impact.
+
+.. index:: Frontend, API

Documentation/Changelog/9.4/Index.rst

@@ -0,0 +1,20 @@
+.. include:: ../../Includes.rst.txt
+
+9.4 Changes
+===========
+
+**Table of contents**
+
+.. contents::
+   :local:
+   :depth: 1
+
+Features
+--------
+
+.. toctree::
+   :maxdepth: 1
+   :titlesonly:
+   :glob:
+
+   Feature-*

Documentation/Changelog/Index.rst

@@ -10,6 +10,7 @@ ChangeLog
    :maxdepth: 5
    :titlesonly:
 
+   9.4/Index
    9.3/Index
    9.1/Index
    9.0/Index

Documentation/guides.xml

@@ -11,8 +11,8 @@
                interlink-shortcode="extcode/cart"
     />
     <project title="Cart"
-             release="9.3.0"
-             version="9.3"
+             release="9.4.0"
+             version="9.4"
              copyright="2018 - 2024"
     />
     <inventory id="t3tsref" url="https://docs.typo3.org/typo3cms/TyposcriptReference/"/>

ext_emconf.php

@@ -4,7 +4,7 @@
     'title' => 'Cart',
     'description' => 'Shopping Cart(s) for TYPO3',
     'category' => 'plugin',
-    'version' => '9.3.0',
+    'version' => '9.4.0',
     'state' => 'stable',
     'author' => 'Daniel Gohlke',
     'author_email' => 'ext@extco.de',