Issue 23 dotkernel.com

Author: OStefan2001

bin/generate-feed

@@ -0,0 +1,23 @@
+#!/usr/bin/env php
+<?php
+
+declare(strict_types=1);
+
+use Light\App\Service\FeedGenerator;
+
+chdir(__DIR__ . '/../');
+
+require 'vendor/autoload.php';
+
+$container     = require 'config/container.php';
+$feedGenerator = $container->get(FeedGenerator::class);
+
+$count = $feedGenerator->write();
+
+printf(
+    "Done. %d article%s written to %s%s",
+    $count,
+    $count === 1 ? '' : 's',
+    $feedGenerator->getFeedFile(),
+    PHP_EOL
+);

composer.json

@@ -27,6 +27,7 @@
     },
     "require": {
         "php": "~8.5.0",
+        "ext-dom": "*",
         "doctrine/data-fixtures": "^2.2",
         "doctrine/doctrine-fixtures-bundle": "^4.3",
         "dotkernel/dot-errorhandler": "^5.0.0",
@@ -69,7 +70,8 @@
             "@development-enable"
         ],
         "post-update-cmd": [
-            "php bin/composer-post-install-script.php"
+            "php bin/composer-post-install-script.php",
+            "php bin/generate-feed.php"
         ],
         "development-disable": "laminas-development-mode disable",
         "development-enable": "laminas-development-mode enable",

config/autoload/app.global.php

@@ -22,6 +22,9 @@
 
 return [
     'app'  => $app,
+    'feed' => [
+        'file' => 'public/feed.xml',
+    ],
     'twig' => [
         'globals' => [
             'app' => $app,

public/feed.xml

@@ -12,9 +12,13 @@
 use Dot\Cache\Adapter\FilesystemAdapter;
 use Light\App\DBAL\Types\UuidType;
 use Light\App\Factory\EntityListenerResolverFactory;
+use Light\App\Factory\FeedGeneratorFactory;
+use Light\App\Factory\GetFeedViewHandlerFactory;
 use Light\App\Factory\GetIndexViewHandlerFactory;
+use Light\App\Handler\GetFeedViewHandler;
 use Light\App\Handler\GetIndexViewHandler;
 use Light\App\Resolver\EntityListenerResolver;
+use Light\App\Service\FeedGenerator;
 use Mezzio\Application;
 use Roave\PsrContainerDoctrine\EntityManagerFactory;
 use Symfony\Component\Cache\Adapter\AdapterInterface;
@@ -109,6 +113,8 @@ public function getDependencies(): array
                 'doctrine.entity_manager.orm_default' => EntityManagerFactory::class,
                 EntityListenerResolver::class         => EntityListenerResolverFactory::class,
                 GetIndexViewHandler::class            => GetIndexViewHandlerFactory::class,
+                GetFeedViewHandler::class             => GetFeedViewHandlerFactory::class,
+                FeedGenerator::class                  => FeedGeneratorFactory::class,
             ],
             'aliases'    => [
                 EntityManager::class          => 'doctrine.entity_manager.orm_default',

src/App/src/ConfigProvider.php

@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Light\App\Factory;
+
+use Light\App\Service\FeedGenerator;
+use Light\Blog\Repository\PostRepository;
+use Psr\Container\ContainerInterface;
+
+use function assert;
+use function rtrim;
+
+class FeedGeneratorFactory
+{
+    public function __invoke(ContainerInterface $container): FeedGenerator
+    {
+        $postRepository = $container->get(PostRepository::class);
+        assert($postRepository instanceof PostRepository);
+
+        $config = $container->get('config');
+
+        return new FeedGenerator(
+            $postRepository,
+            $config['feed']['file'],
+            rtrim($config['application']['url'] ?? '', '/') . '/',
+            $config['app']['meta']['title'] ?? '',
+            $config['app']['meta']['description'] ?? '',
+        );
+    }
+}

src/App/src/Factory/FeedGeneratorFactory.php

@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Light\App\Factory;
+
+use Light\App\Handler\GetFeedViewHandler;
+use Light\App\Service\FeedGenerator;
+use Psr\Container\ContainerInterface;
+
+use function assert;
+
+class GetFeedViewHandlerFactory
+{
+    /**
+     * @param class-string $requestedName
+     */
+    public function __invoke(ContainerInterface $container, string $requestedName): GetFeedViewHandler
+    {
+        $feedGenerator = $container->get(FeedGenerator::class);
+        assert($feedGenerator instanceof FeedGenerator);
+
+        return new GetFeedViewHandler($feedGenerator);
+    }
+}

src/App/src/Factory/GetFeedViewHandlerFactory.php

@@ -75,6 +75,7 @@ public function load(ObjectManager $manager): void
                     : new DateTimeImmutable();
 
                 $excerpt = $articleData['excerpt'] ?? '';
+                $tlDr    = $articleData['tl_dr'] ?? '';
 
                 $article = $repository->findOneBy(['slug' => $slug]);
 
@@ -87,6 +88,7 @@ public function load(ObjectManager $manager): void
                     $article->setCategory($category);
                     $article->setAuthor($author);
                     $article->setExcerpt($excerpt);
+                    $article->setTldr($tlDr);
 
                     $manager->persist($article);
                     echo "CREATE: {$title}\n";
@@ -117,6 +119,10 @@ public function load(ObjectManager $manager): void
                         $article->setExcerpt($excerpt);
                         $changed = true;
                     }
+                    if ($article->getTldr() !== $tlDr) {
+                        $article->setTldr($tlDr);
+                        $changed = true;
+                    }
 
                     echo $changed ? "UPDATE: {$title}\n" : "UNCHANGED: {$title}\n";
                 }