Move the toTweet() functionality

Move the toTweet() functionality from the Entity into the Action.

web/modules/custom/blog/src/Action/ConvertPostToTweet.php

@@ -5,11 +5,45 @@ declare(strict_types=1);
 namespace Drupal\opdavies_blog\Action;
 
 use Drupal\opdavies_blog\Entity\Node\Post;
+use Drupal\taxonomy\Entity\Term;
+use Illuminate\Support\Collection;
 
 final class ConvertPostToTweet {
 
+  private Post $post;
+
   public function __invoke(Post $post): string {
-    return $post->toTweet();
+    $this->post = $post;
+
+    $parts = [
+      $post->label(),
+      $post->url('canonical', ['absolute' => TRUE]),
+      $this->convertTermsToHashtags(),
+    ];
+
+    return implode(PHP_EOL . PHP_EOL, $parts);
+  }
+
+  private function convertTermsToHashtags(): string {
+    return $this->post
+      ->getTags()
+      ->filter(fn(Term $term) => !$this->tagsToRemove()
+        ->contains($term->label()))
+      ->map(fn(Term $term) => $this->convertTermToHashtag($term))
+      ->implode(' ');
+  }
+
+  private function tagsToRemove(): Collection {
+    // TODO: Move these values into configuration/settings.php.
+    return new Collection([
+      'Drupal Planet',
+    ]);
+  }
+
+  private function convertTermToHashtag(Term $tag): string {
+    return '#' . (new Collection(explode(' ', $tag->label())))
+      ->map(fn(string $word): string => ucfirst($word))
+      ->implode('');
   }
 
 }

web/modules/custom/blog/src/Entity/Node/Post.php

@@ -66,34 +66,7 @@ class Post extends Node implements ContentEntityBundleInterface {
   }
 
   public function toTweet(): string {
-    $parts = [
-      $this->label(),
-      $this->url('canonical', ['absolute' => TRUE]),
-      $this->convertTermsToHashtags(),
-    ];
-
-    return implode(PHP_EOL . PHP_EOL, $parts);
-  }
-
-  private function convertTermsToHashtags(): string {
-    return $this->getTags()
-      ->filter(fn(Term $term) => !$this->tagsToRemove()
-        ->contains($term->label()))
-      ->map(fn(Term $term) => $this->convertTermToHashtag($term))
-      ->implode(' ');
-  }
-
-  private function tagsToRemove(): Collection {
-    // TODO: Move these values into configuration/settings.php.
-    return new Collection([
-      'Drupal Planet',
-    ]);
-  }
-
-  private function convertTermToHashtag(Term $tag): string {
-    return '#' . (new Collection(explode(' ', $tag->label())))
-      ->map(fn(string $word): string => ucfirst($word))
-      ->implode('');
+    return '';
   }
 
 }