Initialer Laravel Commit für BetiX

app/Http/Middleware/SetLocale.php

@@ -0,0 +1,81 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use Closure;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Cookie;
+
+class SetLocale
+{
+    /** @var array<string> */
+    private array $available = [
+        'en','de','es','pt_BR','tr','pl',
+        // prepared, not yet enabled in UI
+        'fr','it','ru','uk','vi','id','zh_CN','ja','ko','sv','no','fi','nl',
+    ];
+
+    public function handle(Request $request, Closure $next)
+    {
+        $locale = $this->resolveLocale($request);
+
+        // Apply
+        app()->setLocale($locale);
+
+        // Persist for guests as well (1 year)
+        $request->session()->put('locale', $locale);
+        Cookie::queue(cookie('locale', $locale, 60 * 24 * 365));
+
+        // If logged in and preference changed, consider persisting upstream (no local DB writes)
+        if ($user = $request->user()) {
+            if (($user->preferred_locale ?? null) !== $locale) {
+                // Defer persistence to external API; keep request-scoped preference only.
+                // Optionally, emit an event or queue a task to sync.
+            }
+        }
+
+        return $next($request);
+    }
+
+    private function resolveLocale(Request $request): string
+    {
+        // 1) explicit query param ?lang=xx
+        $q = $request->query('lang');
+        if ($q && $this->isAllowed($q)) return $this->normalize($q);
+
+        // 2) user preference
+        $u = $request->user();
+        if ($u && $this->isAllowed($u->preferred_locale ?? null)) return $this->normalize($u->preferred_locale);
+
+        // 3) session
+        $s = $request->session()->get('locale');
+        if ($this->isAllowed($s)) return $this->normalize((string) $s);
+
+        // 4) cookie
+        $c = $request->cookie('locale');
+        if ($this->isAllowed($c)) return $this->normalize((string) $c);
+
+        // 5) Accept-Language best effort
+        $preferred = $request->getPreferredLanguage($this->available);
+        if ($this->isAllowed($preferred)) return $this->normalize((string) $preferred);
+
+        // 6) fallback
+        return config('app.locale', 'en');
+    }
+
+    private function isAllowed($code): bool
+    {
+        if (!$code) return false;
+        $norm = $this->normalize((string) $code);
+        return in_array($norm, $this->available, true);
+    }
+
+    private function normalize(string $code): string
+    {
+        // Normalize e.g. pt-br → pt_BR, zh-cn → zh_CN; others lower-case
+        $code = str_replace([' ', '-'], ['','_'], trim($code));
+        if (strtolower($code) === 'pt_br') return 'pt_BR';
+        if (strtolower($code) === 'zh_cn') return 'zh_CN';
+        return strtolower($code);
+    }
+}