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<?php
namespace Engelsystem\Helpers;
class Translator
{
/** @var string[] */
protected $locales;
/** @var string */
protected $locale;
/** @var callable */
protected $localeChangeCallback;
/**
* Translator constructor.
*
* @param string $locale
* @param string[] $locales
* @param callable $localeChangeCallback
*/
public function __construct(string $locale, array $locales = [], callable $localeChangeCallback = null)
{
$this->localeChangeCallback = $localeChangeCallback;
$this->setLocale($locale);
$this->setLocales($locales);
}
/**
* Get the translation for a given key
*
* @param string $key
* @param array $replace
* @return string
*/
public function translate(string $key, array $replace = []): string
{
$translated = $this->translateGettext($key);
return $this->replaceText($translated, $replace);
}
/**
* Get the translation for a given key
*
* @param string $key
* @param string $pluralKey
* @param int $number
* @param array $replace
* @return string
*/
public function translatePlural(string $key, string $pluralKey, int $number, array $replace = []): string
{
$translated = $this->translateGettextPlural($key, $pluralKey, $number);
return $this->replaceText($translated, $replace);
}
/**
* Replace placeholders
*
* @param string $key
* @param array $replace
* @return mixed|string
*/
protected function replaceText(string $key, array $replace = [])
{
if (empty($replace)) {
return $key;
}
return call_user_func_array('sprintf', array_merge([$key], $replace));
}
/**
* Translate the key via gettext
*
* @param string $key
* @return string
* @codeCoverageIgnore
*/
protected function translateGettext(string $key): string
{
return gettext($key);
}
/**
* Translate the key via gettext
*
* @param string $key
* @param string $keyPlural
* @param int $number
* @return string
* @codeCoverageIgnore
*/
protected function translateGettextPlural(string $key, string $keyPlural, int $number): string
{
return ngettext($key, $keyPlural, $number);
}
/**
* @return string
*/
public function getLocale(): string
{
return $this->locale;
}
/**
* @param string $locale
*/
public function setLocale(string $locale)
{
$this->locale = $locale;
if (is_callable($this->localeChangeCallback)) {
call_user_func_array($this->localeChangeCallback, [$locale]);
}
}
/**
* @return string[]
*/
public function getLocales(): array
{
return $this->locales;
}
/**
* @param string $locale
* @return bool
*/
public function hasLocale(string $locale): bool
{
return isset($this->locales[$locale]);
}
/**
* @param string[] $locales
*/
public function setLocales(array $locales)
{
$this->locales = $locales;
}
}
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