Add an image resolver to provide an image to the email

Author: loevgaard

composer.json

@@ -8,6 +8,7 @@
         "doctrine/orm": "^2.0",
         "doctrine/persistence": "^2.0 || ^3.0",
         "knplabs/knp-menu": "^3.7",
+        "liip/imagine-bundle": "^2.0",
         "psr/log": "^1.0 || ^2.0 || ^3.0",
         "setono/doctrine-orm-trait": "^1.2",
         "sylius/channel": "^1.0",

src/EmailManager/RestockNotificationEmailManager.php

@@ -6,13 +6,16 @@
 
 use Setono\SyliusRestockNotificationPlugin\Mailer\Emails;
 use Setono\SyliusRestockNotificationPlugin\Model\RestockNotificationRequestInterface;
+use Setono\SyliusRestockNotificationPlugin\Resolver\ImageUrlResolverInterface;
 use Sylius\Component\Mailer\Sender\SenderInterface;
 use Webmozart\Assert\Assert;
 
 final class RestockNotificationEmailManager implements RestockNotificationEmailManagerInterface
 {
-    public function __construct(private readonly SenderInterface $sender)
-    {
+    public function __construct(
+        private readonly SenderInterface $sender,
+        private readonly ImageUrlResolverInterface $imageUrlResolver,
+    ) {
     }
 
     public function sendRestockNotificationEmail(RestockNotificationRequestInterface $restockNotificationRequest): void
@@ -34,6 +37,7 @@ public function sendRestockNotificationEmail(RestockNotificationRequestInterface
                 'restockNotificationRequest' => $restockNotificationRequest,
                 'channel' => $channel,
                 'localeCode' => $localeCode,
+                'imageUrl' => $this->imageUrlResolver->resolve($restockNotificationRequest),
             ],
         )
         ;

src/Resolver/ImageUrlResolver.php

@@ -0,0 +1,66 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Setono\SyliusRestockNotificationPlugin\Resolver;
+
+use Liip\ImagineBundle\Imagine\Cache\CacheManager;
+use Setono\SyliusRestockNotificationPlugin\Model\RestockNotificationRequestInterface;
+use Sylius\Component\Core\Model\ProductInterface;
+use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
+
+final class ImageUrlResolver implements ImageUrlResolverInterface
+{
+    public function __construct(
+        private readonly CacheManager $cacheManager,
+        private readonly string $filter = 'sylius_shop_product_large_thumbnail',
+    ) {
+    }
+
+    public function resolve(RestockNotificationRequestInterface $restockNotificationRequest): ?string
+    {
+        $product = $restockNotificationRequest->getProductVariant()?->getProduct();
+        if (!$product instanceof ProductInterface) {
+            return null;
+        }
+
+        $image = $product->getImages()->first();
+        if (false === $image) {
+            return null;
+        }
+
+        $path = $image->getPath();
+        if (null === $path) {
+            return null;
+        }
+
+        $hostname = self::getChannelHostname($restockNotificationRequest);
+        if (null === $hostname) {
+            return $this->cacheManager->getBrowserPath($path, $this->filter);
+        }
+
+        return sprintf(
+            '%s%s',
+            $hostname,
+            $this->cacheManager->getBrowserPath(path: $path, filter: $this->filter, referenceType: UrlGeneratorInterface::ABSOLUTE_PATH),
+        );
+    }
+
+    /**
+     * @return non-empty-string|null
+     */
+    private static function getChannelHostname(RestockNotificationRequestInterface $restockNotificationRequest): ?string
+    {
+        $channel = $restockNotificationRequest->getChannel();
+        if (null === $channel) {
+            return null;
+        }
+
+        $hostname = $channel->getHostname();
+        if (null === $hostname || '' === $hostname) {
+            return null;
+        }
+
+        return sprintf('https://%s', $hostname);
+    }
+}

src/Resolver/ImageUrlResolverInterface.php

@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Setono\SyliusRestockNotificationPlugin\Resolver;
+
+use Setono\SyliusRestockNotificationPlugin\Model\RestockNotificationRequestInterface;
+
+interface ImageUrlResolverInterface
+{
+    /**
+     * Will resolve an image URL based on a restock notification request
+     */
+    public function resolve(RestockNotificationRequestInterface $restockNotificationRequest): ?string;
+}

src/Resources/config/services.xml

@@ -12,6 +12,7 @@
         <import resource="services/menu.xml"/>
         <import resource="services/message.xml"/>
         <import resource="services/notifier.xml"/>
+        <import resource="services/resolver.xml"/>
         <import resource="services/twig.xml"/>
     </imports>
 </container>

src/Resources/config/services/resolver.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+
+<container xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://symfony.com/schema/dic/services"
+           xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
+    <services>
+        <service id="Setono\SyliusRestockNotificationPlugin\Resolver\ImageUrlResolverInterface"
+                 alias="Setono\SyliusRestockNotificationPlugin\Resolver\ImageUrlResolver"/>
+
+        <service id="Setono\SyliusRestockNotificationPlugin\Resolver\ImageUrlResolver">
+            <argument type="service" id="liip_imagine.cache.manager"/>
+        </service>
+    </services>
+</container>