fix: Task 6 review round 1 - admin label overlap, heading default level, structure deny-list, row widths (S41)

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01At3V6SjwbMe6eMzVGW3Hs7

src/Integrations/Divi/Compose/Composer.php

@@ -46,6 +46,8 @@ final class Composer
 
     private const BACKGROUND = 'module.decoration.background';
 
+    private const DEFAULT_LEVEL = 'h2';
+
     /** Advice of the S40 overlap error for new nodes. */
     private const ONE_FORM = 'für diesen Pfad nur Kurzform oder attrs angeben';
 
@@ -122,8 +124,13 @@ final class Composer
         }
 
         $set = $change['set'] ?? null;
+        $short = is_array($set) ? $this->shortPaths($block->shortName(), $set, 'set.') : [];
+        if (array_key_exists('label', $change)) {
+            // Ruling S41: the admin label is a short-form value too.
+            $short['label'] = self::LABEL_PATH;
+        }
         $this->overlaps(
-            is_array($set) ? $this->shortPaths($block->shortName(), $set, 'set.') : [],
+            $short,
             $change['attrs'] ?? null,
             $field,
             'bitte als zwei Änderungen senden'
@@ -156,10 +163,7 @@ final class Composer
         foreach (array_keys($full) as $path) {
             $path = (string) $path;
             foreach ($short as $name => $shortPath) {
-                if (
-                    $path === $shortPath || str_starts_with($path, $shortPath . '.')
-                    || str_starts_with($shortPath, $path . '.')
-                ) {
+                if (AttrMap::overlaps($path, $shortPath)) {
                     $this->errors[$field . '.attrs.' . $path] = sprintf(
                         'derselbe Attributpfad wird auch über %s geändert; %s',
                         $name,
@@ -171,6 +175,47 @@ final class Composer
         }
     }
 
+    /** @param array<array-key, mixed> $full "attrs" input. */
+    private function touches(array $full, string $path): bool
+    {
+        foreach (array_keys($full) as $given) {
+            if (AttrMap::overlaps((string) $given, $path)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Ruling S41: the default level of a new heading stays when attrs replaced the desktop font
+     * value it lives in (attrs replace a breakpoint value whole) – unless attrs name a level.
+     *
+     * @param array<string, mixed> $attrs
+     * @return array<string, mixed>
+     */
+    private function defaultLevel(string $short, array $attrs): array
+    {
+        $field = ShortformMap::fields($short)['level'] ?? null;
+        if ($field === null || $field['sub'] === null) {
+            return $attrs;
+        }
+
+        $value = AttrMap::desktop($attrs, (string) $field['path']);
+        if ($value !== null && ! is_array($value)) {
+            return $attrs;
+        }
+
+        if (is_array($value) && array_key_exists((string) $field['sub'], $value)) {
+            return $attrs;
+        }
+
+        $current = AttrMap::get($attrs, (string) $field['path'] . '.desktop.value');
+        $merged = array_merge([(string) $field['sub'] => self::DEFAULT_LEVEL], is_array($current) ? $current : []);
+
+        return AttrMap::set($attrs, (string) $field['path'] . '.desktop.value', $merged);
+    }
+
     /**
      * Paths of the short-form fields a client gave, keyed by their input name ($prefix . field).
      *
@@ -346,8 +391,9 @@ final class Composer
         // of the same name (contact-field type, social network label) go through lit-divi-update "set".
         $values = array_intersect_key($spec, array_flip(array_diff($fields, self::COMMON)));
         $this->overlaps($this->shortPaths($short, $values, ''), $spec['attrs'] ?? null, $path, self::ONE_FORM);
-        if ($name === 'divi/heading' && ! array_key_exists('level', $values)) {
-            $values['level'] = 'h2';
+        $defaultLevel = $name === 'divi/heading' && ! array_key_exists('level', $values);
+        if ($defaultLevel) {
+            $values['level'] = self::DEFAULT_LEVEL;
         }
 
         $attrs = ['builderVersion' => $this->builderVersion];
@@ -357,7 +403,12 @@ final class Composer
             $this->errors += $result['errors'];
         }
 
-        $block = Block::create($name, $this->common($name, $attrs, $spec, $path, $this->autoLabel($name, $context)));
+        $attrs = $this->common($name, $attrs, $spec, $path, $this->autoLabel($name, $context));
+        if ($defaultLevel) {
+            $attrs = $this->defaultLevel($short, $attrs);
+        }
+
+        $block = Block::create($name, $attrs);
         if ($hasItems) {
             $this->children($block, $spec['items'] ?? [], $path . '.items', $context);
         } elseif ($name === 'divi/group') {
@@ -377,6 +428,14 @@ final class Composer
      */
     private function common(string $name, array $attrs, array $spec, string $path, ?string $autoLabel): array
     {
+        // Ruling S41: "label" and attrs on the admin label is an error; attrs alone replace the auto label.
+        $full = $spec['attrs'] ?? null;
+        if (array_key_exists('label', $spec) && $spec['label'] !== null) {
+            $this->overlaps(['label' => self::LABEL_PATH], $full, $path, self::ONE_FORM);
+        } elseif (is_array($full) && $this->touches($full, self::LABEL_PATH)) {
+            $autoLabel = null;
+        }
+
         $attrs = $this->presetAndAttrs($name, $attrs, $spec, $path);
         $label = array_key_exists('label', $spec) && $spec['label'] !== null ? $spec['label'] : $autoLabel;
         if ($label === null || $label === '') {
@@ -574,6 +633,31 @@ final class Composer
         return $widths;
     }
 
+    /**
+     * Ruling S41: the desktop flexType values of all columns of a row (in order), checked with
+     * the rules of "columns" – valid Divi widths that fill the row exactly. Null when valid,
+     * else the German problem.
+     *
+     * @param list<mixed> $flexTypes
+     */
+    public function rowWidthsError(array $flexTypes): ?string
+    {
+        $saved = $this->errors;
+        $this->errors = [];
+        $valid = $flexTypes !== [] && array_filter(
+            $flexTypes,
+            static fn (mixed $width): bool => is_string($width) && preg_match('/^\d{1,2}_\d{1,2}$/D', $width) === 1
+        ) === $flexTypes;
+        if ($valid) {
+            $this->widths(implode(',', $flexTypes), 'w');
+        }
+
+        $error = $valid ? ($this->errors['w'] ?? null) : 'Spaltenbreiten wie "8_24" erwartet';
+        $this->errors = $saved;
+
+        return $error;
+    }
+
     /**
      * Whether the fractions add up to exactly 1: numerators scaled to the least common
      * denominator (denominators are divisors of 24 or 5, 7, 9, 10, 11 – at most 27720).