Upload beautify

app/Models/Category.php

@@ -113,4 +113,50 @@ class Category extends Model
     {
         return 'slug';
     }
+
+    /**
+     * Resolve a category by a content-type slug and a category path (e.g. "audio/winamp").
+     * This will locate the category with the final slug and verify its parent chain
+     * matches the provided path and that the category belongs to the given content type.
+     *
+     * @param  string  $contentTypeSlug
+     * @param  string|array  $categoryPath
+     * @return Category|null
+     */
+    public static function findByPath(string $contentTypeSlug, $categoryPath): ?Category
+    {
+        $parts = is_array($categoryPath)
+            ? array_values(array_map('strtolower', array_filter($categoryPath)))
+            : array_values(array_map('strtolower', array_filter(explode('/', (string) $categoryPath))));
+
+        if (empty($parts)) {
+            return null;
+        }
+
+        $last = end($parts);
+
+        $category = static::where('slug', $last)
+            ->whereHas('contentType', function ($q) use ($contentTypeSlug) {
+                $q->where('slug', strtolower($contentTypeSlug));
+            })
+            ->first();
+
+        if (! $category) {
+            return null;
+        }
+
+        // Verify parent chain matches the preceding parts in the path
+        $idx = count($parts) - 2;
+        $current = $category;
+        while ($idx >= 0) {
+            $parent = $current->parent;
+            if (! $parent || $parent->slug !== $parts[$idx]) {
+                return null;
+            }
+            $current = $parent;
+            $idx--;
+        }
+
+        return $category;
+    }
 }