feat: implement Dynamic Data Binding system and tags registry

src/components/sections/HeroSection.astro

@@ -1,11 +1,17 @@
 ---
 import type { SiteConfig, UIComponent } from '../../utils/configLoader';
+import { resolveDynamicBinding } from '../../utils/dynamicDataBinding';
 
 interface Props {
   config: SiteConfig['hero'];
+  contextData?: Record<string, any>;
 }
 
-const { config } = Astro.props;
+const { config, contextData = {} } = Astro.props;
+
+const heroTitle = resolveDynamicBinding(config.title, contextData);
+const heroSubtitle = resolveDynamicBinding(config.subtitle, contextData);
+const heroBadge = resolveDynamicBinding(config.badge, contextData);
 
 const elements = config.elements || [];
 const badgeElements = elements.filter((el: UIComponent) => el.slotId === 'hero-badge-slot');
@@ -21,41 +27,41 @@ const customElements = elements.filter((el: UIComponent) => !el.slotId || el.slo
     
     <!-- Slot 1: Badge Slot -->
     <div id="hero-badge-slot" class="inline-flex flex-wrap items-center justify-center gap-2">
-      {config.badge && (
+      {heroBadge && (
         <div class="inline-flex items-center gap-2 px-3.5 py-1.5 rounded-full border border-sky-400/20 bg-sky-400/10 text-sky-400 text-xs font-mono tracking-wide backdrop-blur-md">
-          <span>{config.badge}</span>
+          <span>{heroBadge}</span>
         </div>
       )}
       {badgeElements.map(el => (
         <span class={`inline-flex items-center gap-2 px-3.5 py-1.5 rounded-full border border-sky-400/30 bg-sky-400/20 text-sky-300 text-xs font-mono ${el.animation0 ? `anim-${el.animation0}` : ''}`}>
-          {el.content}
+          {resolveDynamicBinding(el.content, contextData)}
         </span>
       ))}
     </div>
 
     <h1 class="text-4xl sm:text-6xl font-extrabold tracking-tight text-white leading-tight">
-      {config.title}
+      {heroTitle}
     </h1>
 
     <p class="text-slate-400 text-xs sm:text-lg max-w-2xl mx-auto leading-relaxed font-normal">
-      {config.subtitle}
+      {heroSubtitle}
     </p>
 
     <!-- Slot 2: Action Buttons Slot -->
     <div id="hero-actions-slot" class="flex flex-wrap items-center justify-center gap-4 pt-4">
       {config.ctaPrimaryText && (
         <a href={config.ctaPrimaryLink} class="px-8 py-3.5 rounded-xl bg-sky-400 text-slate-950 font-bold text-xs hover:bg-white transition-all duration-300 shadow-lg shadow-sky-400/20 active:scale-95">
-          {config.ctaPrimaryText}
+          {resolveDynamicBinding(config.ctaPrimaryText, contextData)}
         </a>
       )}
       {config.ctaSecondaryText && (
         <a href={config.ctaSecondaryLink} class="px-8 py-3.5 rounded-xl glass-panel text-white font-semibold text-xs glass-panel-hover active:scale-95">
-          {config.ctaSecondaryText}
+          {resolveDynamicBinding(config.ctaSecondaryText, contextData)}
         </a>
       )}
       {actionElements.map(el => (
         <a href={el.link || '#'} class={`px-8 py-3.5 rounded-xl font-bold text-xs transition-all active:scale-95 ${el.style === 'glass' ? 'glass-panel text-white' : 'bg-sky-400 text-slate-950 hover:bg-white'} ${el.animation0 ? `anim-${el.animation0}` : ''}`}>
-          {el.content}
+          {resolveDynamicBinding(el.content, contextData)}
         </a>
       ))}
     </div>
@@ -66,7 +72,7 @@ const customElements = elements.filter((el: UIComponent) => !el.slotId || el.slo
         {customElements.map(el => (
           <div class="p-4 rounded-xl glass-panel text-xs text-slate-300">
             <span class="font-bold text-sky-400 block mb-1 uppercase text-[10px]">{el.type} [ID: {el.id}]</span>
-            {el.content}
+            {resolveDynamicBinding(el.content, contextData)}
           </div>
         ))}
       </div>

src/pages/admin/editor.astro

@@ -223,8 +223,22 @@ const { siteConfig, themeConfig } = loadWaasConfigs(Astro.request.headers.get('u
               </div>
 
               <div>
-                <label class="block text-[10px] font-bold text-slate-400 uppercase mb-1">Inhalt / Label</label>
-                <input type="text" id="new-el-content" placeholder="z.B. Jetzt Anfragen" class="w-full glass-panel bg-slate-900 rounded-lg p-2 text-xs text-white focus:outline-none focus:border-sky-400" />
+                <label class="block text-[10px] font-bold text-slate-400 uppercase mb-1">Dynamische Daten-Verknüpfung (Dynamic Tag)</label>
+                <select id="new-el-dynamic-tag" onchange="if(this.value){ document.getElementById('new-el-content').value = '{{' + this.value + '}}'; }" class="w-full glass-panel bg-slate-900 rounded-lg p-2 text-xs text-sky-400 focus:outline-none focus:border-sky-400 font-mono mb-2">
+                  <option value="">-- Statischer Text (Kein Tag) --</option>
+                  <option value="site.siteName">site.siteName (Website Name)</option>
+                  <option value="site.metaDescription">site.metaDescription (Beschreibung)</option>
+                  <option value="site.contactEmail">site.contactEmail (Kontakt Email)</option>
+                  <option value="site.phone">site.phone (Telefonnummer)</option>
+                  <option value="post.title">post.title (Beitragstitel)</option>
+                  <option value="post.excerpt">post.excerpt (Beitragsauszug)</option>
+                  <option value="author.name">author.name (Autor Name)</option>
+                </select>
+              </div>
+
+              <div>
+                <label class="block text-[10px] font-bold text-slate-400 uppercase mb-1">Inhalt / Label / Tag</label>
+                <input type="text" id="new-el-content" placeholder="z.B. Jetzt Anfragen oder {{site.siteName}}" class="w-full glass-panel bg-slate-900 rounded-lg p-2 text-xs text-white focus:outline-none focus:border-sky-400 font-mono" />
               </div>
 
               <button type="button" id="add-el-btn" class="w-full py-2.5 rounded-lg bg-sky-400/20 text-sky-400 border border-sky-400/30 font-bold text-xs uppercase tracking-wider hover:bg-sky-400 hover:text-slate-950 transition-all">

src/utils/dynamicDataBinding.ts

@@ -0,0 +1,49 @@
+export interface DynamicFieldDefinition {
+  key: string; // e.g. 'site.siteName', 'post.title', 'custom.clientName'
+  label: string;
+  category: 'site' | 'post' | 'author' | 'custom';
+  defaultValue: string;
+}
+
+export const DYNAMIC_FIELDS_REGISTRY: DynamicFieldDefinition[] = [
+  { key: 'site.siteName', label: 'Website Name', category: 'site', defaultValue: 'N&D IT Solutions' },
+  { key: 'site.metaDescription', label: 'Website Beschreibung', category: 'site', defaultValue: 'High-Performance Webdesign & Digital Solutions' },
+  { key: 'site.contactEmail', label: 'Kontakt E-Mail', category: 'site', defaultValue: 'kontakt@ndsolutions.de' },
+  { key: 'site.phone', label: 'Telefonnummer', category: 'site', defaultValue: '+49 (0) 123 456789' },
+  { key: 'post.title', label: 'Beitragstitel (Dynamisch)', category: 'post', defaultValue: 'Beispiel Artikel' },
+  { key: 'post.excerpt', label: 'Beitrags Auszug', category: 'post', defaultValue: 'Ein kurzer Auszug des Artikels...' },
+  { key: 'author.name', label: 'Autor Name', category: 'author', defaultValue: 'N&D Team' }
+];
+
+/**
+ * Replaces dynamic binding tags like `{{site.siteName}}` or evaluates binding keys against a data context.
+ */
+export function resolveDynamicBinding(
+  content: string,
+  contextData: Record<string, any>
+): string {
+  if (!content) return content;
+  
+  return content.replace(/\{\{([^}]+)\}\}/g, (_, key) => {
+    const trimmedKey = key.trim();
+    const keys = trimmedKey.split('.');
+    let val: any = contextData;
+
+    for (const k of keys) {
+      if (val && typeof val === 'object' && k in val) {
+        val = val[k];
+      } else {
+        val = undefined;
+        break;
+      }
+    }
+
+    if (val !== undefined && val !== null) {
+      return String(val);
+    }
+
+    // Fallback to registry default if available
+    const regItem = DYNAMIC_FIELDS_REGISTRY.find(f => f.key === trimmedKey);
+    return regItem ? regItem.defaultValue : `{{${trimmedKey}}}`;
+  });
+}

tests/waasEngine.test.ts

@@ -96,4 +96,19 @@ describe('WaaS Engine Core Unit Tests', () => {
     const matchSpecific = resolveTemplate(templates, 'header', { url: '/landing', routeType: 'singular', entityId: 'landing_1' });
     expect(matchSpecific?.id).toBe('header-custom-page');
   });
+
+  it('7. Should correctly resolve dynamic data tags like {{site.siteName}}', async () => {
+    const { resolveDynamicBinding } = await import('../src/utils/dynamicDataBinding');
+    
+    const context = {
+      site: { siteName: 'Test Agency Pro', contactEmail: 'info@test.de' },
+      post: { title: 'Mein erster Post' }
+    };
+
+    const resolvedTitle = resolveDynamicBinding('Willkommen bei {{site.siteName}}', context);
+    expect(resolvedTitle).toBe('Willkommen bei Test Agency Pro');
+
+    const resolvedPost = resolveDynamicBinding('Artikel: {{post.title}}', context);
+    expect(resolvedPost).toBe('Artikel: Mein erster Post');
+  });
 });