<?php

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

class AIEO_I18n {

	
	public static function is_multilingual() {
		$ml = defined( 'ICL_SITEPRESS_VERSION' ) || function_exists( 'icl_object_id' ) || function_exists( 'pll_current_language' )
			
			|| count( (array) get_available_languages() ) > 1;
		return (bool) apply_filters( 'aieo_is_multilingual', $ml );
	}

	
	public static function recipient_locale( $user_id = 0, $email = '', $ctx = array() ) {
		$site = function_exists( 'determine_locale' ) ? determine_locale() : get_locale();
		if ( ! self::is_multilingual() ) {
			return $site; 
		}
		$locale = ( (int) $user_id > 0 ) ? (string) get_user_locale( (int) $user_id ) : '';
		
		$locale = (string) apply_filters( 'aieo_email_recipient_locale', $locale, (int) $user_id, (string) $email, (array) $ctx );
		$locale = trim( $locale );
		if ( '' === $locale ) {
			return $site;
		}
		
		if ( 'en_US' === $locale || in_array( $locale, (array) get_available_languages(), true ) ) {
			return $locale;
		}
		return $site;
	}

	
	public static function with_locale( $locale, callable $cb ) {
		$locale  = (string) $locale;
		$current = function_exists( 'determine_locale' ) ? determine_locale() : get_locale();
		
		
		
		$switch  = ( '' !== $locale && $locale !== $current && function_exists( 'switch_to_locale' ) && switch_to_locale( $locale ) );
		try {
			return $cb();
		} finally {
			if ( $switch ) {
				restore_previous_locale();
			}
		}
	}
}