changes

public/admin.html

@@ -170,6 +170,7 @@
             }
         });
     </script>
+    <script src="js/debug-helper.js"></script>
     <script src="js/translations.js"></script>
     <script src="js/admin.js"></script>
 </body>

public/js/admin.js

@@ -77,11 +77,19 @@ function getFilteredItems() {
     }
     
     return items.filter(item => {
-        if (window.translationManager) {
+        const translationManager = window.ensureTranslationManager ? window.ensureTranslationManager() : null;
-            const localizedItem = window.translationManager.getLocalizedItem(item);
+        if (translationManager) {
+            const localizedItem = translationManager.getLocalizedItem(item);
             return localizedItem.name.toLowerCase().includes(searchTerm) || 
                    (localizedItem.description && localizedItem.description.toLowerCase().includes(searchTerm)) ||
                    item.location.toLowerCase().includes(searchTerm);
+        } else if (window.getItemDisplayText) {
+            const currentLang = localStorage.getItem('language') || 'nl';
+            const name = window.getItemDisplayText(item, 'name', currentLang);
+            const description = window.getItemDisplayText(item, 'description', currentLang);
+            return name.toLowerCase().includes(searchTerm) || 
+                   description.toLowerCase().includes(searchTerm) ||
+                   item.location.toLowerCase().includes(searchTerm);
         } else {
             // Fallback for when translation manager isn't loaded yet (default to Dutch)
             const name = item.name?.nl || item.name?.en || item.name || '';
@@ -110,10 +118,28 @@ function displayGridView() {
 
     const filteredItems = getFilteredItems();
     itemsGrid.innerHTML = filteredItems.map(item => {
-        const localizedItem = window.translationManager ? window.translationManager.getLocalizedItem(item) : {
+        // Use multiple fallback strategies
-            name: item.name?.nl || item.name?.en || item.name || 'Onbekend Artikel',
+        const translationManager = window.ensureTranslationManager ? window.ensureTranslationManager() : null;
-            description: item.description?.nl || item.description?.en || item.description || ''
+        let localizedItem;
-        };
+        
+        if (translationManager) {
+            localizedItem = translationManager.getLocalizedItem(item);
+        } else if (window.getItemDisplayText) {
+            // Use debug helper fallback
+            const currentLang = localStorage.getItem('language') || 'nl';
+            localizedItem = {
+                ...item,
+                name: window.getItemDisplayText(item, 'name', currentLang),
+                description: window.getItemDisplayText(item, 'description', currentLang)
+            };
+        } else {
+            // Final fallback
+            localizedItem = {
+                ...item,
+                name: (typeof item.name === 'object') ? (item.name?.nl || item.name?.en || 'Onbekend Artikel') : (item.name || 'Onbekend Artikel'),
+                description: (typeof item.description === 'object') ? (item.description?.nl || item.description?.en || 'Geen beschrijving beschikbaar') : (item.description || 'Geen beschrijving beschikbaar')
+            };
+        }
         
         return `
         <div class="col-md-4 col-lg-3">
@@ -146,10 +172,28 @@ function displayListView() {
     const itemsListBody = document.getElementById('itemsListBody');
     const filteredItems = getFilteredItems();
     itemsListBody.innerHTML = filteredItems.map(item => {
-        const localizedItem = window.translationManager ? window.translationManager.getLocalizedItem(item) : {
+        // Use multiple fallback strategies
-            name: item.name?.nl || item.name?.en || item.name || 'Onbekend Artikel',
+        const translationManager = window.ensureTranslationManager ? window.ensureTranslationManager() : null;
-            description: item.description?.nl || item.description?.en || item.description || ''
+        let localizedItem;
-        };
+        
+        if (translationManager) {
+            localizedItem = translationManager.getLocalizedItem(item);
+        } else if (window.getItemDisplayText) {
+            // Use debug helper fallback
+            const currentLang = localStorage.getItem('language') || 'nl';
+            localizedItem = {
+                ...item,
+                name: window.getItemDisplayText(item, 'name', currentLang),
+                description: window.getItemDisplayText(item, 'description', currentLang)
+            };
+        } else {
+            // Final fallback
+            localizedItem = {
+                ...item,
+                name: (typeof item.name === 'object') ? (item.name?.nl || item.name?.en || 'Onbekend Artikel') : (item.name || 'Onbekend Artikel'),
+                description: (typeof item.description === 'object') ? (item.description?.nl || item.description?.en || 'Geen beschrijving beschikbaar') : (item.description || 'Geen beschrijving beschikbaar')
+            };
+        }
         
         return `
         <tr>

public/js/debug-helper.js

@@ -0,0 +1,50 @@
+// Debug helper for translation issues
+console.log('Debug helper loaded');
+
+// Function to check item structure
+window.debugItem = function(item) {
+    console.log('Item structure:', item);
+    console.log('Item name type:', typeof item.name);
+    console.log('Item name value:', item.name);
+    console.log('Item description type:', typeof item.description);
+    console.log('Item description value:', item.description);
+    
+    if (window.translationManager) {
+        console.log('Translation manager exists');
+        const localized = window.translationManager.getLocalizedItem(item);
+        console.log('Localized item:', localized);
+    } else {
+        console.log('Translation manager not available');
+    }
+};
+
+// Function to ensure translation manager
+window.ensureTranslationManager = function() {
+    if (!window.translationManager) {
+        console.log('Creating new translation manager instance');
+        if (window.TranslationManager) {
+            window.translationManager = new window.TranslationManager();
+        } else {
+            console.error('TranslationManager class not available');
+            return null;
+        }
+    }
+    return window.translationManager;
+};
+
+// Enhanced fallback function for items
+window.getItemDisplayText = function(item, field, language = 'nl') {
+    if (!item) return field === 'name' ? 'Onbekend Artikel' : 'Geen beschrijving beschikbaar';
+    
+    const value = item[field];
+    
+    if (typeof value === 'object' && value !== null) {
+        return value[language] || value.nl || value.en || (field === 'name' ? 'Onbekend Artikel' : 'Geen beschrijving beschikbaar');
+    } else if (typeof value === 'string') {
+        return value;
+    } else {
+        return field === 'name' ? 'Onbekend Artikel' : 'Geen beschrijving beschikbaar';
+    }
+};
+
+console.log('Debug helper functions loaded');

public/js/student.js

@@ -124,10 +124,16 @@ function displayItems() {
     // Apply search filter with translation support
     if (searchTerm.trim() !== '') {
         filteredItems = filteredItems.filter(item => {
-            if (window.translationManager) {
+            const translationManager = window.ensureTranslationManager ? window.ensureTranslationManager() : null;
-                const localizedItem = window.translationManager.getLocalizedItem(item);
+            if (translationManager) {
+                const localizedItem = translationManager.getLocalizedItem(item);
                 return localizedItem.name.toLowerCase().includes(searchTerm) || 
                        (localizedItem.description && localizedItem.description.toLowerCase().includes(searchTerm));
+            } else if (window.getItemDisplayText) {
+                const currentLang = localStorage.getItem('language') || 'nl';
+                const name = window.getItemDisplayText(item, 'name', currentLang);
+                const description = window.getItemDisplayText(item, 'description', currentLang);
+                return name.toLowerCase().includes(searchTerm) || description.toLowerCase().includes(searchTerm);
             } else {
                 // Fallback for when translation manager isn't loaded yet (default to Dutch)
                 const name = item.name?.nl || item.name?.en || item.name || '';
@@ -151,10 +157,28 @@ function displayItems() {
         // Display items in grid view
         const gridContainer = document.getElementById('itemsGrid');
         gridContainer.innerHTML = filteredItems.map(item => {
-            const localizedItem = window.translationManager ? window.translationManager.getLocalizedItem(item) : {
+            // Use multiple fallback strategies
-                name: item.name?.nl || item.name?.en || item.name || 'Onbekend Artikel',
+            const translationManager = window.ensureTranslationManager ? window.ensureTranslationManager() : null;
-                description: item.description?.nl || item.description?.en || item.description || ''
+            let localizedItem;
-            };
+            
+            if (translationManager) {
+                localizedItem = translationManager.getLocalizedItem(item);
+            } else if (window.getItemDisplayText) {
+                // Use debug helper fallback
+                const currentLang = localStorage.getItem('language') || 'nl';
+                localizedItem = {
+                    ...item,
+                    name: window.getItemDisplayText(item, 'name', currentLang),
+                    description: window.getItemDisplayText(item, 'description', currentLang)
+                };
+            } else {
+                // Final fallback
+                localizedItem = {
+                    ...item,
+                    name: (typeof item.name === 'object') ? (item.name?.nl || item.name?.en || 'Onbekend Artikel') : (item.name || 'Onbekend Artikel'),
+                    description: (typeof item.description === 'object') ? (item.description?.nl || item.description?.en || 'Geen beschrijving beschikbaar') : (item.description || 'Geen beschrijving beschikbaar')
+                };
+            }
             
             return `
             <div class="col-md-4 col-lg-3 mb-4">
@@ -180,10 +204,28 @@ function displayItems() {
         // Display items in list view
         const itemsListBody = document.getElementById('itemsListBody');
         itemsListBody.innerHTML = filteredItems.map(item => {
-            const localizedItem = window.translationManager ? window.translationManager.getLocalizedItem(item) : {
+            // Use multiple fallback strategies
-                name: item.name?.nl || item.name?.en || item.name || 'Onbekend Artikel',
+            const translationManager = window.ensureTranslationManager ? window.ensureTranslationManager() : null;
-                description: item.description?.nl || item.description?.en || item.description || ''
+            let localizedItem;
-            };
+            
+            if (translationManager) {
+                localizedItem = translationManager.getLocalizedItem(item);
+            } else if (window.getItemDisplayText) {
+                // Use debug helper fallback
+                const currentLang = localStorage.getItem('language') || 'nl';
+                localizedItem = {
+                    ...item,
+                    name: window.getItemDisplayText(item, 'name', currentLang),
+                    description: window.getItemDisplayText(item, 'description', currentLang)
+                };
+            } else {
+                // Final fallback
+                localizedItem = {
+                    ...item,
+                    name: (typeof item.name === 'object') ? (item.name?.nl || item.name?.en || 'Onbekend Artikel') : (item.name || 'Onbekend Artikel'),
+                    description: (typeof item.description === 'object') ? (item.description?.nl || item.description?.en || 'Geen beschrijving beschikbaar') : (item.description || 'Geen beschrijving beschikbaar')
+                };
+            }
             
             return `
             <tr class="item-row" style="cursor: pointer" onclick="showItemDetails(${JSON.stringify(item).replace(/"/g, '&quot;')})">

public/js/translations.js

@@ -80,6 +80,10 @@ const translations = {
         'confirm-return-request': 'Are you sure you want to request return for this item? An admin will need to approve the return.',
         'return-request-success': 'Return requested successfully! An admin will review your request.',
         
+        // Item fallbacks
+        'unknown-item': 'Unknown Item',
+        'no-description': 'No description available',
+        
         // Management
         'inventory-management': 'Inventory Management',
         'reservation-management': 'Reservation Management'
@@ -163,6 +167,10 @@ const translations = {
         'confirm-return-request': 'Weet je zeker dat je retour wilt aanvragen voor dit artikel? Een admin moet de retour goedkeuren.',
         'return-request-success': 'Retour succesvol aangevraagd! Een admin zal je verzoek beoordelen.',
         
+        // Item fallbacks
+        'unknown-item': 'Onbekend Artikel',
+        'no-description': 'Geen beschrijving beschikbaar',
+        
         // Management
         'inventory-management': 'Voorraadbeheer',
         'reservation-management': 'Reserveringsbeheer'
@@ -281,10 +289,38 @@ class TranslationManager {
 
     // Get translated item data based on current language
     getLocalizedItem(item) {
+        // Handle the case where item might be null or undefined
+        if (!item) {
+            return {
+                name: this.translate('unknown-item'),
+                description: this.translate('no-description')
+            };
+        }
+
+        let name, description;
+
+        // Handle multilingual name
+        if (typeof item.name === 'object' && item.name !== null) {
+            name = item.name[this.currentLanguage] || item.name.nl || item.name.en || this.translate('unknown-item');
+        } else if (typeof item.name === 'string') {
+            name = item.name;
+        } else {
+            name = this.translate('unknown-item');
+        }
+
+        // Handle multilingual description
+        if (typeof item.description === 'object' && item.description !== null) {
+            description = item.description[this.currentLanguage] || item.description.nl || item.description.en || this.translate('no-description');
+        } else if (typeof item.description === 'string') {
+            description = item.description || this.translate('no-description');
+        } else {
+            description = this.translate('no-description');
+        }
+
         return {
             ...item,
-            name: item.name?.[this.currentLanguage] || item.name?.nl || item.name?.en || item.name || 'Unknown Item',
+            name: name,
-            description: item.description?.[this.currentLanguage] || item.description?.nl || item.description?.en || item.description || ''
+            description: description
         };
     }
 
@@ -306,8 +342,16 @@ class TranslationManager {
 let translationManager;
 document.addEventListener('DOMContentLoaded', () => {
     translationManager = new TranslationManager();
+    window.translationManager = translationManager;
 });
 
 // Export for use in other files
 window.TranslationManager = TranslationManager;
-window.translationManager = translationManager;
+
+// Function to ensure translation manager is available
+window.getTranslationManager = function() {
+    if (!window.translationManager) {
+        window.translationManager = new TranslationManager();
+    }
+    return window.translationManager;
+};

public/student.html

@@ -143,6 +143,7 @@
     </div>
 
     <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/js/bootstrap.bundle.min.js"></script>
+    <script src="js/debug-helper.js"></script>
     <script src="js/translations.js"></script>
     <script src="js/student.js"></script>
 </body>