Hotfix: Updating LocaleMiddleware to handle more than 2 languages

src/Localization/LocaleMiddleware.php

@@ -62,24 +62,36 @@ class LocaleMiddleware
     }
 
     /**
-     * Shares the current/alternate locale (and the alternate's URL) with all
-     * views, so the header language switcher and layout hreflang tags don't
-     * have to recompute it.
+     * Shares the current locale and every OTHER available locale (each with its
+     * own URL for the current page) with all views, so the header language
+     * switcher and layout hreflang tags don't have to recompute it.
+     *
+     * `altLocales` is a collection, not a single value — firstWhere('code', '!=',
+     * ...) would only ever surface one alternate, which happens to look correct
+     * with exactly 2 configured languages (there's only one "other" to find) but
+     * silently drops every locale past the first for a 3+ language store, with no
+     * error, just fewer switcher options than actually configured. A view iterates
+     * `$altLocales` to render as many links/dropdown entries as there are
+     * alternates, whether that's 1 or 10.
      */
     private function shareLocaleViewData(Request $request, Language $language, Collection $languages): void
     {
-        $altLanguage = $languages->firstWhere('code', '!=', $language->code);
         $route = $request->route();
         $routeName = $route?->getName();
 
+        $altLocales = $languages
+            ->reject(fn (Language $other) => $other->code === $language->code)
+            ->map(fn (Language $other) => [
+                'code' => $other->code,
+                'name' => $other->name,
+                'url' => $routeName
+                    ? route($routeName, array_merge($route->parameters(), ['locale' => $other->code]))
+                    : url('/'.$other->code),
+            ])
+            ->values();
+
         View::share('currentLocale', $language->code);
-        View::share('altLocale', $altLanguage?->code);
-        View::share(
-            'altLocaleUrl',
-            $altLanguage && $routeName
-                ? route($routeName, array_merge($route->parameters(), ['locale' => $altLanguage->code]))
-                : ($altLanguage ? url('/'.$altLanguage->code) : null),
-        );
+        View::share('altLocales', $altLocales);
     }
 
     private function redirectToLocalizedUrl(Request $request, Collection $languages): Response