Added:

- ContentSource handling in message
- ContentSource list, add/update ui
- nextPageSelector and imageSelector can be null
- cleanup

src/Twig/Extension/AppExtension.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Twig\Extension;
+
+use Twig\Extension\AbstractExtension;
+use Twig\TwigFunction;
+
+class AppExtension extends AbstractExtension
+{
+    public function getFunctions(): array
+    {
+        return [
+            new TwigFunction('get_placeholder', [$this, 'getPlaceholder']),
+        ];
+    }
+
+    public function getPlaceholder(string $fieldName): string
+    {
+        return match ($fieldName) {
+            'baseUrl' => 'https://example.com',
+            'imageSelector' => '.manga-image img',
+            'chapterUrlFormat' => 'https://example.com/manga/{slug}/chapter-{number}',
+            'nextPageSelector' => '.next-page',
+            'scrapingType' => 'Select scraping type',
+            default => '',
+        };
+    }
+}