Fix multilingual routing for virtual product pages

Use site()->visit() to properly set language context for virtual pages.
This ensures UI translations and language-specific content work correctly
on both /slug (French) and /en/slug (English) routes.

Changes:
- Add site()->visit($page, $lang) in routes to set page language
- Create product controller for language detection
- Fix add-to-cart button to update text in .txt div instead of button
- Remove broken hooks approach

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.claude/settings.local.json

@@ -10,7 +10,8 @@
       "Bash(grep:*)",
       "Bash(npm run build:*)",
       "Bash(php test-shopify.php:*)",
-      "WebFetch(domain:getkirby.com)"
+      "WebFetch(domain:getkirby.com)",
+      "WebFetch(domain:forum.getkirby.com)"
     ]
   }
 }

assets/css/partials/_site-header.scss

@@ -83,6 +83,7 @@
   }
 
   .header-cart-btn {
+    font-family: var(--font);
     background: none;
     border: none;
     cursor: pointer;
@@ -109,11 +110,11 @@
     }
 
     &:not(:empty)::before {
-      content: '(';
+      content: "(";
     }
 
     &:not(:empty)::after {
-      content: ')';
+      content: ")";
     }
   }
 }

assets/css/style.css

@@ -559,6 +559,7 @@ main {
   color: var(--color-txt);
 }
 #site-header .header-cart-btn {
+  font-family: var(--font);
   background: none;
   border: none;
   cursor: pointer;

assets/js/product-add-to-cart.js

@@ -10,6 +10,13 @@
     return;
   }
 
+  const buttonTextDiv = addToCartBtn.querySelector('.txt[data-button-text]');
+
+  if (!buttonTextDiv) {
+    console.error('Button text div not found');
+    return;
+  }
+
   const texts = {
     add: addToCartBtn.dataset.textAdd || 'Add to cart',
     adding: addToCartBtn.dataset.textAdding || 'Adding...',
@@ -28,13 +35,13 @@
     }
 
     addToCartBtn.disabled = true;
-    const originalText = addToCartBtn.textContent;
+    const originalText = buttonTextDiv.textContent;
-    addToCartBtn.textContent = texts.adding;
+    buttonTextDiv.textContent = texts.adding;
 
     try {
       const cartResult = await cart.addToCart(variantId, 1);
 
-      addToCartBtn.textContent = texts.added;
+      buttonTextDiv.textContent = texts.added;
       addToCartBtn.classList.add('success');
 
       document.dispatchEvent(new CustomEvent('cart:updated', {
@@ -43,19 +50,19 @@
 
       setTimeout(() => {
         addToCartBtn.disabled = false;
-        addToCartBtn.textContent = originalText;
+        buttonTextDiv.textContent = originalText;
         addToCartBtn.classList.remove('success');
       }, 1500);
 
     } catch (error) {
       console.error('Error adding to cart:', error);
 
-      addToCartBtn.textContent = texts.error;
+      buttonTextDiv.textContent = texts.error;
       addToCartBtn.classList.add('error');
 
       setTimeout(() => {
         addToCartBtn.disabled = false;
-        addToCartBtn.textContent = originalText;
+        buttonTextDiv.textContent = originalText;
         addToCartBtn.classList.remove('error');
       }, 2000);
     }

site/config/config.php

@@ -14,11 +14,10 @@ return [
     ],
 
     'routes' => [
-        // French product pages (default)
+        // French products (default)
         [
             'pattern' => '(:any)',
             'action' => function($slug) {
-                // Skip known pages
                 if (in_array($slug, ['home', 'error', 'thanks'])) {
                     return null;
                 }
@@ -27,28 +26,28 @@ return [
 
                 foreach ($products as $product) {
                     if ($product['handle'] === $slug) {
-                        return Page::factory([
+                        $page = Page::factory([
                             'slug' => $product['handle'],
                             'template' => 'product',
-                            'parent' => site()->homePage(),
                             'content' => [
                                 'title' => $product['title'],
                                 'shopifyHandle' => $product['handle'],
                                 'uuid' => $product['id']
                             ]
                         ]);
+
+                        site()->visit($page, 'fr');
+                        return $page;
                     }
                 }
 
-                // Not a product, let Kirby handle normally
                 return null;
             }
         ],
-        // English product pages
+        // English products
         [
             'pattern' => 'en/(:any)',
             'action' => function($slug) {
-                // Skip known pages
                 if (in_array($slug, ['home', 'error', 'thanks'])) {
                     return null;
                 }
@@ -57,20 +56,21 @@ return [
 
                 foreach ($products as $product) {
                     if ($product['handle'] === $slug) {
-                        return Page::factory([
+                        $page = Page::factory([
                             'slug' => $product['handle'],
                             'template' => 'product',
-                            'parent' => site()->homePage(),
                             'content' => [
                                 'title' => $product['title'],
                                 'shopifyHandle' => $product['handle'],
                                 'uuid' => $product['id']
                             ]
                         ]);
+
+                        site()->visit($page, 'en');
+                        return $page;
                     }
                 }
 
-                // Not a product, let Kirby handle normally
                 return null;
             }
         ]

site/controllers/product.php

@@ -0,0 +1,11 @@
+<?php
+
+return function ($page, $kirby) {
+    $shopifyHandle = $page->shopifyHandle()->or($page->slug())->value();
+    $language = $kirby->language()->code();
+
+    return [
+        'shopifyHandle' => $shopifyHandle,
+        'language' => $language
+    ];
+};