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src/App/functions.php

@@ -253,6 +253,96 @@ function module_tpl(string $module, string $name, array $data = []): void
     }
 }
 
+function module_design(string $module): array
+{
+    if (preg_match('/[^a-zA-Z0-9_\-]/', $module)) {
+        return [];
+    }
+
+    static $cache = [];
+    if (array_key_exists($module, $cache)) {
+        return $cache[$module];
+    }
+
+    $path = __DIR__ . '/../../modules/' . $module . '/design.json';
+    if (!is_file($path)) {
+        $cache[$module] = [];
+        return $cache[$module];
+    }
+
+    $raw = file_get_contents($path);
+    $decoded = is_string($raw) && $raw !== '' ? json_decode($raw, true) : null;
+    $cache[$module] = is_array($decoded) ? $decoded : [];
+    return $cache[$module];
+}
+
+function module_shell_header(string $module, array $options = []): string
+{
+    $design = module_design($module);
+    $requestPath = app()->request()->path();
+    $title = trim((string) ($options['title'] ?? $design['title'] ?? ucfirst($module)));
+    $description = trim((string) ($options['description'] ?? $design['description'] ?? ''));
+    $eyebrow = trim((string) ($options['eyebrow'] ?? $design['eyebrow'] ?? 'Modul'));
+    $actions = is_array($options['actions'] ?? null) ? $options['actions'] : (is_array($design['actions'] ?? null) ? $design['actions'] : []);
+    $tabs = is_array($options['tabs'] ?? null) ? $options['tabs'] : (is_array($design['tabs'] ?? null) ? $design['tabs'] : []);
+
+    $html = '<div class="module-shell"><div class="module-page-bg"><div class="module-page-stack">';
+    $html .= '<header class="module-hero">';
+    $html .= '<div class="module-hero-top">';
+    $html .= '<div class="module-hero-copy">';
+    $html .= '<div class="eyebrow">' . e($eyebrow) . '</div>';
+    $html .= '<h1 class="module-title">' . e($title) . '</h1>';
+    if ($description !== '') {
+        $html .= '<p class="module-lead">' . e($description) . '</p>';
+    }
+    $html .= '</div>';
+
+    if ($actions !== []) {
+        $html .= '<div class="module-hero-actions">';
+        foreach ($actions as $action) {
+            if (!is_array($action)) {
+                continue;
+            }
+            $label = trim((string) ($action['label'] ?? ''));
+            $href = trim((string) ($action['href'] ?? ''));
+            if ($label === '' || $href === '') {
+                continue;
+            }
+            $variant = trim((string) ($action['variant'] ?? 'secondary'));
+            $class = $variant === 'ghost' ? 'module-button module-button--ghost' : 'module-button module-button--secondary';
+            $html .= '<a class="' . e($class) . '" href="' . e($href) . '">' . e($label) . '</a>';
+        }
+        $html .= '</div>';
+    }
+
+    $html .= '</div>';
+    if ($tabs !== []) {
+        $html .= '<nav class="module-tabs" aria-label="Modulnavigation">';
+        foreach ($tabs as $tab) {
+            if (!is_array($tab)) {
+                continue;
+            }
+            $label = trim((string) ($tab['label'] ?? ''));
+            $href = trim((string) ($tab['href'] ?? ''));
+            if ($label === '' || $href === '') {
+                continue;
+            }
+            $isActive = !empty($tab['active']) || $href === $requestPath;
+            $class = $isActive ? 'module-button module-button--tab-active' : 'module-button module-button--tab';
+            $html .= '<a class="' . e($class) . '" href="' . e($href) . '">' . e($label) . '</a>';
+        }
+        $html .= '</nav>';
+    }
+    $html .= '</header>';
+
+    return $html;
+}
+
+function module_shell_footer(): string
+{
+    return '</div></div></div>';
+}
+
 /**
  * HTML Escaping Helper.
  */