whisper-money/app/Http/Middleware/SetLocale.php

87 lines
2.5 KiB
PHP

<?php
namespace App\Http\Middleware;
use Closure;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\App;
use Symfony\Component\HttpFoundation\Response;
class SetLocale
{
/**
* Handle an incoming request.
*
* @param \Closure(\Illuminate\Http\Request): (\Symfony\Component\HttpFoundation\Response) $next
*/
public function handle(Request $request, Closure $next): Response
{
$locale = $this->determineLocale($request);
App::setLocale($locale);
return $next($request);
}
/**
* Determine the locale for the current request.
*/
protected function determineLocale(Request $request): string
{
// Priority 1: Check for lang query parameter (user override on welcome page)
if ($request->has('lang') && in_array($request->get('lang'), ['en', 'es'])) {
$locale = $request->get('lang');
// Store in session so subsequent requests remember this choice
$request->session()->put('locale', $locale);
return $locale;
}
// Priority 2: Check authenticated user's locale preference
if ($request->user() && $request->user()->locale) {
return $request->user()->locale;
}
// Priority 2b: Authenticated user without locale — detect and persist
if ($request->user()) {
$detected = $this->detectLocaleFromHeader($request);
if (in_array($request->session()->get('locale'), ['en', 'es'])) {
$detected = $request->session()->get('locale');
}
$request->user()->update(['locale' => $detected]);
return $detected;
}
// Priority 3: Check session for previously detected locale
if ($request->session()->has('locale')) {
return $request->session()->get('locale');
}
// Priority 4: Detect from Accept-Language header
$detected = $this->detectLocaleFromHeader($request);
// Store in session for subsequent requests
$request->session()->put('locale', $detected);
return $detected;
}
/**
* Detect locale from Accept-Language header.
*/
protected function detectLocaleFromHeader(Request $request): string
{
$acceptLanguage = $request->header('Accept-Language', '');
// Check if Spanish is preferred
if (preg_match('/^es(-|,|;)/i', $acceptLanguage) || $acceptLanguage === 'es') {
return 'es';
}
return 'en';
}
}