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<?php
declare(strict_types=1);
/**
* SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OC\L10N;
use OCP\IConfig;
use OCP\IUser;
use OCP\L10N\ILanguageIterator;
class LanguageIterator implements ILanguageIterator {
private $i = 0;
/** @var IConfig */
private $config;
/** @var IUser */
private $user;
public function __construct(IUser $user, IConfig $config) {
$this->config = $config;
$this->user = $user;
}
/**
* Rewind the Iterator to the first element
*/
public function rewind(): void {
$this->i = 0;
}
/**
* Return the current element
*
* @since 14.0.0
*/
public function current(): string {
switch ($this->i) {
/** @noinspection PhpMissingBreakStatementInspection */
case 0:
$forcedLang = $this->config->getSystemValue('force_language', false);
if (is_string($forcedLang)) {
return $forcedLang;
}
$this->next();
/** @noinspection PhpMissingBreakStatementInspection */
// no break
case 1:
$forcedLang = $this->config->getSystemValue('force_language', false);
if (is_string($forcedLang)
&& ($truncated = $this->getTruncatedLanguage($forcedLang)) !== $forcedLang
) {
return $truncated;
}
$this->next();
/** @noinspection PhpMissingBreakStatementInspection */
// no break
case 2:
$userLang = $this->config->getUserValue($this->user->getUID(), 'core', 'lang', null);
if (is_string($userLang)) {
return $userLang;
}
$this->next();
/** @noinspection PhpMissingBreakStatementInspection */
// no break
case 3:
$userLang = $this->config->getUserValue($this->user->getUID(), 'core', 'lang', null);
if (is_string($userLang)
&& ($truncated = $this->getTruncatedLanguage($userLang)) !== $userLang
) {
return $truncated;
}
$this->next();
// no break
case 4:
return $this->config->getSystemValueString('default_language', 'en');
/** @noinspection PhpMissingBreakStatementInspection */
case 5:
$defaultLang = $this->config->getSystemValueString('default_language', 'en');
if (($truncated = $this->getTruncatedLanguage($defaultLang)) !== $defaultLang) {
return $truncated;
}
$this->next();
// no break
default:
return 'en';
}
}
/**
* Move forward to next element
*
* @since 14.0.0
*/
public function next(): void {
++$this->i;
}
/**
* Return the key of the current element
*
* @since 14.0.0
*/
public function key(): int {
return $this->i;
}
/**
* Checks if current position is valid
*
* @since 14.0.0
*/
public function valid(): bool {
return $this->i <= 6;
}
protected function getTruncatedLanguage(string $lang):string {
$pos = strpos($lang, '_');
if ($pos !== false) {
$lang = substr($lang, 0, $pos);
}
return $lang;
}
}
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