feat: locale

app/Http/Requests/LoginRequest.php

@@ -3,6 +3,7 @@
 namespace App\Http\Requests;
 
 use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
 
 class LoginRequest extends FormRequest
 {
@@ -23,7 +24,24 @@ class LoginRequest extends FormRequest
     {
         return [
             'email' => ['required', 'string'],
+            'locale' => ['sometimes', 'string', Rule::in(config('app.supported_locales', ['fr', 'en']))],
             'password' => ['required', 'string'],
         ];
     }
+
+    protected function prepareForValidation(): void
+    {
+        if ($this->has('locale')) {
+            $this->merge([
+                'locale' => $this->normalizeLocale((string) $this->input('locale')),
+            ]);
+        }
+    }
+
+    private function normalizeLocale(string $locale): string
+    {
+        $locale = strtolower(str_replace('_', '-', $locale));
+
+        return explode('-', $locale)[0];
+    }
 }