🚧 Continues tests, parser and starts builder

For #4

src/Entity/Item.php

@@ -2,33 +2,68 @@
 
 namespace Shikiryu\SRSS\Entity;
 
-class Item implements SRSSElement
+use Shikiryu\SRSS\Validator\HasValidator;
+use Shikiryu\SRSS\Validator\Validator;
+
+/**
+ * https://cyber.harvard.edu/rss/rss.html#hrelementsOfLtitemgt
+ */
+class Item extends HasValidator implements SRSSElement
 {
-    public ?string $title;
-    public ?string $link;
-    public ?string $description;
-    public ?string $author;
-    public ?string $category;
-    public ?string $comments;
-    public ?string $enclosure;
-    public ?string $guid;
-    public ?string $pubDate;
-    public ?string $source;
+    /**
+     * @requiredOr description
+     * @nohtml
+     */
+    public ?string $title = null;
+    /**
+     * @url
+     */
+    public ?string $link = null;
+    /**
+     * @requiredOr title
+     */
+    public ?string $description = null;
+    /**
+     * @email
+     */
+    public ?string $author = null;
+    /*
+     * TODO can be multiple with attributes and all
+     */
+    public ?string $category = null;
+    /**
+     * @url
+     */
+    public ?string $comments = null;
+    /*
+     * TODO 1 attributes and 1 value
+     */
+    public ?string $enclosure = null;
+    public ?string $guid = null;
+    /**
+     * @date
+     */
+    public ?string $pubDate = null;
+    /*
+     * TODO 1 attributes and 1 value
+     */
+    public ?string $source = null;
 
     /**
      * @var \Shikiryu\SRSS\Entity\Media\Content[]
+     * @contentMedia
      */
     public array $medias = [];
 
-    public array $required = ['description'];
-
     public function isValid(): bool
     {
-        return count(array_filter($this->required, fn($field) => !empty($this->{$field}))) === 0;
+        return (new Validator())->isObjectValid($this);
     }
 
     public function toArray(): array
     {
-        return get_object_vars($this);
+        $vars = get_object_vars($this);
+        unset($vars['validated']);
+        return $vars;
     }
 }