feat: implement category flags, drop global tables, fix sidebar sticky layout

shop/lib/actions/validation.ts

@@ -7,6 +7,8 @@ export function validateWizardSelections(
 ): void {
   for (const cat of dbCategories) {
     const sel = selections[cat.id]
+
+    // --- is_required: Pflichtauswahl prüfen ---
     const hasSelection = sel && (
       (cat.allow_multiselect && sel.productIds && sel.productIds.length > 0) ||
       (!cat.allow_multiselect && sel.productId)
@@ -17,6 +19,13 @@ export function validateWizardSelections(
     }
 
     if (sel) {
+      // --- allow_multiselect = false: keine doppelten IDs erlaubt ---
+      if (!cat.allow_multiselect && sel.productIds && sel.productIds.length > 1) {
+        throw new Error(
+          `Die Kategorie "${cat.name}" erlaubt keine Mehrfachauswahl. Bitte nur ein Produkt wählen.`
+        )
+      }
+
       const selectedProds: Product[] = []
       if (cat.allow_multiselect && sel.productIds) {
         sel.productIds.forEach(pId => {
@@ -32,8 +41,8 @@ export function validateWizardSelections(
         // Validate selected modules
         for (const mId of sel.moduleIds) {
           const mod = prod.modules?.find(m => m.id === mId)
-          if (!mod) continue // module might belong to another selected product in the same category, so skip error if it's not this one's
-          
+          if (!mod) continue
+
           // Requirements check
           if (mod.requirements && mod.requirements.length > 0) {
             const hasMetRequirement = mod.requirements.some(reqId => sel.moduleIds.includes(reqId))
@@ -53,7 +62,7 @@ export function validateWizardSelections(
     }
   }
 
-  // Product-level constraints validation
+  // --- Product-level constraints validation ---
   const selectedProductIds: string[] = []
   Object.values(selections).forEach(s => {
     if (s.productIds && s.productIds.length > 0) {
@@ -92,3 +101,4 @@ export function validateWizardSelections(
     }
   }
 }
+

shop/lib/wizard-state.ts

@@ -1,65 +1,5 @@
 import { Product, ProductModule, Category, WizardSelections } from './types';
 
-export interface GlobalInclusion {
-  trigger_product_id: string;
-  included_module_id: string;
-}
-
-export interface GlobalExclusion {
-  product_id: string;
-  excluded_product_id?: string | null;
-  excluded_module_id?: string | null;
-}
-
-/**
- * Handle changes to the base product.
- * Resets selected modules that are excluded by global exclusions for the new product.
- * Automatically adds globally included modules for the new product.
- */
-export function handleBaseProductChange(
-  newProductId: string,
-  currentSelections: WizardSelections,
-  modules: ProductModule[],
-  inclusions: GlobalInclusion[],
-  exclusions: GlobalExclusion[]
-): WizardSelections {
-  const updated: WizardSelections = JSON.parse(JSON.stringify(currentSelections));
-
-  // Find all modules that are excluded for the new product
-  const excludedModuleIds = exclusions
-    .filter(ex => ex.product_id === newProductId && ex.excluded_module_id)
-    .map(ex => ex.excluded_module_id as string);
-
-  // Find all modules that are automatically included for the new product
-  const includedModuleIds = inclusions
-    .filter(inc => inc.trigger_product_id === newProductId)
-    .map(inc => inc.included_module_id);
-
-  // Iterate over categories and filter modules
-  for (const categoryId in updated) {
-    const selection = updated[categoryId];
-    
-    // Remove excluded modules
-    selection.moduleIds = selection.moduleIds.filter(
-      mid => !excludedModuleIds.includes(mid)
-    );
-
-    // Add automatically included modules if they belong to this category
-    for (const incId of includedModuleIds) {
-      const module = modules.find(m => m.id === incId);
-      if (module && module.product_id === newProductId) {
-        // Find category of module. In our schema, modules might belong to a category.
-        // Assuming we check if module belongs to current category:
-        // We'll append it if the selections is for that category (or we can resolve category from module)
-        // Let's assume we map it by checking module metadata or category_id if available.
-        // For simplicity: if the module is already in the DB and matches, we add it.
-      }
-    }
-  }
-
-  return updated;
-}
-
 /**
  * Handle toggling of a module selection.
  * Handles category-specific allow_multiselect rules.