fixed language switching in the frontend

2025-12-02 13:31:58 +01:00
parent 28539754a7
commit dd3198cb79
20 changed files with 395 additions and 203 deletions
--- a/app/Support/LocaleConfig.php
+++ b/app/Support/LocaleConfig.php
@@ -0,0 +1,79 @@
+<?php
+
+namespace App\Support;
+
+use Illuminate\Support\Arr;
+use Illuminate\Support\Str;
+
+class LocaleConfig
+{
+    /**
+     * Return configured locales from env/config as provided (may include region codes).
+     * @return array<int, string>
+     */
+    public static function configured(): array
+    {
+        $configured = array_filter(array_map(
+            static fn ($value) => trim((string) $value),
+            explode(',', (string) env('APP_SUPPORTED_LOCALES', ''))
+        ));
+
+        $baseLocales = array_filter([
+            config('app.locale'),
+            config('app.fallback_locale'),
+        ]);
+
+        $fallback = ['de', 'en'];
+
+        return array_values(array_unique([
+            ...$configured,
+            ...$baseLocales,
+            ...$fallback,
+        ]));
+    }
+
+    /**
+     * Return normalized short codes (language only, lowercase).
+     * @return array<int, string>
+     */
+    public static function normalized(): array
+    {
+        return collect(static::configured())
+            ->map(fn (string $code) => Str::of($code)->lower()->before('-')->before('_')->toString())
+            ->filter()
+            ->unique()
+            ->values()
+            ->all();
+    }
+
+    /**
+     * Pattern for route constraints: accept both configured and normalized variants.
+     */
+    public static function routePattern(): string
+    {
+        $all = collect(array_merge(static::configured(), static::normalized()))
+            ->map(fn (string $code) => preg_quote($code, '/'))
+            ->unique()
+            ->values()
+            ->all();
+
+        return implode('|', $all);
+    }
+
+    /**
+     * Canonicalize any incoming locale to a normalized short code if supported, otherwise fallback.
+     */
+    public static function canonicalize(?string $locale): string
+    {
+        $normalized = static::normalized();
+        $fallback = Arr::first($normalized, default: 'de');
+
+        if (! $locale) {
+            return $fallback;
+        }
+
+        $short = Str::of($locale)->lower()->before('-')->before('_')->toString();
+
+        return in_array($short, $normalized, true) ? $short : $fallback;
+    }
+}