<?php
namespace ABeCe\Booking\Support;
/** WordPress determines the request locale; bundled catalogs do not require core language packs. */
final class LocaleContext {
 public const SUPPORTED=['en_US','en_GB','cs_CZ','de_DE','pl_PL','fr_FR','es_ES','it_IT','uk','pt_BR','ru_RU','zh_CN'];
 public static function language(string $locale): ?string {
  $locale=str_replace('-','_',$locale);if(in_array($locale,self::SUPPORTED,true))return $locale;
  $language=strtolower(explode('_',$locale)[0]);foreach(self::SUPPORTED as $candidate)if(strtolower(explode('_',$candidate)[0])===$language)return $candidate;return null;
 }
 public static function resolve(string $locale,?string $site=null): string {return self::language($locale)??self::language($site??(get_option('WPLANG')?:'en_US'))??'en_US';}
 public static function current(): string {return self::resolve(determine_locale());}
 public static function register(): void {
  // Core's JIT locale reload must discover bundled catalogs too (WordPress 6.2+).
  global $wp_textdomain_registry;
  $wp_textdomain_registry->set_custom_path('abece-booking',dirname(__DIR__,2).'/languages');
  add_filter('get_available_languages',static fn(array $locales):array=>array_values(array_unique([...$locales,...self::SUPPORTED])));
  // Standard loader hooks preserve existing site/custom catalogs whenever present.
  add_filter('load_textdomain_mofile',static function(string $file,string $domain):string {
   if($domain!=='abece-booking')return $file;
   $locale=self::resolve(determine_locale());$bundled=dirname(__DIR__,2).'/languages/';
   // WordPress 6.2's JIT registry can select the bundled path last; site packs still win.
   $site=WP_LANG_DIR.'/plugins/abece-booking-'.$locale.'.mo';
   if(str_starts_with($file,$bundled)&&is_readable($site))return $site;
   if(is_readable($file))return $file;
   $fallback=$bundled.'abece-booking-'.$locale.'.mo';return is_readable($fallback)?$fallback:$file;
  },10,2);
  add_filter('load_script_translation_file',static function(string|false $file,string $handle,string $domain):string|false {
   if($domain!=='abece-booking'||!in_array($handle,['abece-booking-admin','abece-booking-public'],true)||($file&&is_readable($file)))return $file;
   $fallback=dirname(__DIR__,2).'/languages/abece-booking-'.self::resolve(determine_locale()).'-'.$handle.'.json';return is_readable($fallback)?$fallback:$file;
  },10,3);
 }
 /** Evaluate literal gettext calls in the selected locale, then restore the caller's locale. */
 public static function withLocale(string $locale,callable $callback): mixed {
  $target=self::resolve($locale);$switched=switch_to_locale($target);try{return $callback();}finally{if($switched)restore_previous_locale();}
 }
}