julienmonnerie/kirby/src/Cms/Language.php
2023-04-14 16:34:06 +02:00

729 lines
13 KiB
PHP

<?php
namespace Kirby\Cms;
use Kirby\Data\Data;
use Kirby\Exception\Exception;
use Kirby\Exception\PermissionException;
use Kirby\Filesystem\F;
use Kirby\Toolkit\Locale;
use Kirby\Toolkit\Str;
use Throwable;
/**
* The `$language` object represents
* a single language in a multi-language
* Kirby setup. You can, for example,
* use the methods of this class to get
* the name or locale of a language,
* check for the default language,
* get translation strings and many
* more things.
*
* @package Kirby Cms
* @author Bastian Allgeier <bastian@getkirby.com>
* @link https://getkirby.com
* @copyright Bastian Allgeier
* @license https://getkirby.com/license
*/
class Language extends Model
{
/**
* @var string
*/
protected $code;
/**
* @var bool
*/
protected $default;
/**
* @var string
*/
protected $direction;
/**
* @var array
*/
protected $locale;
/**
* @var string
*/
protected $name;
/**
* @var array|null
*/
protected $slugs;
/**
* @var array|null
*/
protected $smartypants;
/**
* @var array|null
*/
protected $translations;
/**
* @var string
*/
protected $url;
/**
* Creates a new language object
*
* @param array $props
*/
public function __construct(array $props)
{
$this->setRequiredProperties($props, [
'code'
]);
$this->setOptionalProperties($props, [
'default',
'direction',
'locale',
'name',
'slugs',
'smartypants',
'translations',
'url',
]);
}
/**
* Improved `var_dump` output
*
* @return array
*/
public function __debugInfo(): array
{
return $this->toArray();
}
/**
* Returns the language code
* when the language is converted to a string
*
* @return string
*/
public function __toString(): string
{
return $this->code();
}
/**
* Returns the base Url for the language
* without the path or other cruft
*
* @return string
*/
public function baseUrl(): string
{
$kirbyUrl = $this->kirby()->url();
$languageUrl = $this->url();
if (empty($this->url)) {
return $kirbyUrl;
}
if (Str::startsWith($languageUrl, $kirbyUrl) === true) {
return $kirbyUrl;
}
return Url::base($languageUrl) ?? $kirbyUrl;
}
/**
* Returns the language code/id.
* The language code is used in
* text file names as appendix.
*
* @return string
*/
public function code(): string
{
return $this->code;
}
/**
* Internal converter to create or remove
* translation files.
*
* @param string $from
* @param string $to
* @return bool
*/
protected static function converter(string $from, string $to): bool
{
$kirby = App::instance();
$site = $kirby->site();
// convert site
foreach ($site->files() as $file) {
F::move($file->contentFile($from, true), $file->contentFile($to, true));
}
F::move($site->contentFile($from, true), $site->contentFile($to, true));
// convert all pages
foreach ($kirby->site()->index(true) as $page) {
foreach ($page->files() as $file) {
F::move($file->contentFile($from, true), $file->contentFile($to, true));
}
F::move($page->contentFile($from, true), $page->contentFile($to, true));
}
// convert all users
foreach ($kirby->users() as $user) {
foreach ($user->files() as $file) {
F::move($file->contentFile($from, true), $file->contentFile($to, true));
}
F::move($user->contentFile($from, true), $user->contentFile($to, true));
}
return true;
}
/**
* Creates a new language object
*
* @internal
* @param array $props
* @return static
*/
public static function create(array $props)
{
$props['code'] = Str::slug($props['code'] ?? null);
$kirby = App::instance();
$languages = $kirby->languages();
// make the first language the default language
if ($languages->count() === 0) {
$props['default'] = true;
}
$language = new static($props);
// trigger before hook
$kirby->trigger(
'language.create:before',
[
'input' => $props,
'language' => $language
]
);
// validate the new language
LanguageRules::create($language);
$language->save();
if ($languages->count() === 0) {
static::converter('', $language->code());
}
// update the main languages collection in the app instance
$kirby->languages(false)->append($language->code(), $language);
// trigger after hook
$kirby->trigger(
'language.create:after',
[
'input' => $props,
'language' => $language
]
);
return $language;
}
/**
* Delete the current language and
* all its translation files
*
* @internal
* @return bool
* @throws \Kirby\Exception\Exception
*/
public function delete(): bool
{
$kirby = App::instance();
$languages = $kirby->languages();
$code = $this->code();
$isLast = $languages->count() === 1;
// trigger before hook
$kirby->trigger('language.delete:before', [
'language' => $this
]);
if (F::remove($this->root()) !== true) {
throw new Exception('The language could not be deleted');
}
if ($isLast === true) {
$this->converter($code, '');
} else {
$this->deleteContentFiles($code);
}
// get the original language collection and remove the current language
$kirby->languages(false)->remove($code);
// trigger after hook
$kirby->trigger('language.delete:after', [
'language' => $this
]);
return true;
}
/**
* When the language is deleted, all content files with
* the language code must be removed as well.
*
* @param mixed $code
* @return bool
*/
protected function deleteContentFiles($code): bool
{
$kirby = App::instance();
$site = $kirby->site();
F::remove($site->contentFile($code, true));
foreach ($kirby->site()->index(true) as $page) {
foreach ($page->files() as $file) {
F::remove($file->contentFile($code, true));
}
F::remove($page->contentFile($code, true));
}
foreach ($kirby->users() as $user) {
foreach ($user->files() as $file) {
F::remove($file->contentFile($code, true));
}
F::remove($user->contentFile($code, true));
}
return true;
}
/**
* Reading direction of this language
*
* @return string
*/
public function direction(): string
{
return $this->direction;
}
/**
* Check if the language file exists
*
* @return bool
*/
public function exists(): bool
{
return file_exists($this->root());
}
/**
* Checks if this is the default language
* for the site.
*
* @return bool
*/
public function isDefault(): bool
{
return $this->default;
}
/**
* The id is required for collections
* to work properly. The code is used as id
*
* @return string
*/
public function id(): string
{
return $this->code;
}
/**
* Loads the language rules for provided locale code
*
* @param string $code
*/
public static function loadRules(string $code)
{
$kirby = App::instance();
$code = Str::contains($code, '.') ? Str::before($code, '.') : $code;
$file = $kirby->root('i18n:rules') . '/' . $code . '.json';
if (F::exists($file) === false) {
$file = $kirby->root('i18n:rules') . '/' . Str::before($code, '_') . '.json';
}
try {
return Data::read($file);
} catch (\Exception) {
return [];
}
}
/**
* Returns the PHP locale setting array
*
* @param int $category If passed, returns the locale for the specified category (e.g. LC_ALL) as string
* @return array|string
*/
public function locale(int $category = null)
{
if ($category !== null) {
return $this->locale[$category] ?? $this->locale[LC_ALL] ?? null;
}
return $this->locale;
}
/**
* Returns the human-readable name
* of the language
*
* @return string
*/
public function name(): string
{
return $this->name;
}
/**
* Returns the URL path for the language
*
* @return string
*/
public function path(): string
{
if ($this->url === null) {
return $this->code;
}
return Url::path($this->url);
}
/**
* Returns the routing pattern for the language
*
* @return string
*/
public function pattern(): string
{
$path = $this->path();
if (empty($path) === true) {
return '(:all)';
}
return $path . '/(:all?)';
}
/**
* Returns the absolute path to the language file
*
* @return string
*/
public function root(): string
{
return App::instance()->root('languages') . '/' . $this->code() . '.php';
}
/**
* Returns the LanguageRouter instance
* which is used to handle language specific
* routes.
*
* @return \Kirby\Cms\LanguageRouter
*/
public function router()
{
return new LanguageRouter($this);
}
/**
* Get slug rules for language
*
* @internal
* @return array
*/
public function rules(): array
{
$code = $this->locale(LC_CTYPE);
$data = static::loadRules($code);
return array_merge($data, $this->slugs());
}
/**
* Saves the language settings in the languages folder
*
* @internal
* @return $this
*/
public function save()
{
try {
$existingData = Data::read($this->root());
} catch (Throwable) {
$existingData = [];
}
$props = [
'code' => $this->code(),
'default' => $this->isDefault(),
'direction' => $this->direction(),
'locale' => Locale::export($this->locale()),
'name' => $this->name(),
'translations' => $this->translations(),
'url' => $this->url,
];
$data = array_merge($existingData, $props);
ksort($data);
Data::write($this->root(), $data);
return $this;
}
/**
* @param string $code
* @return $this
*/
protected function setCode(string $code)
{
$this->code = trim($code);
return $this;
}
/**
* @param bool $default
* @return $this
*/
protected function setDefault(bool $default = false)
{
$this->default = $default;
return $this;
}
/**
* @param string $direction
* @return $this
*/
protected function setDirection(string $direction = 'ltr')
{
$this->direction = $direction === 'rtl' ? 'rtl' : 'ltr';
return $this;
}
/**
* @param string|array $locale
* @return $this
*/
protected function setLocale($locale = null)
{
if ($locale === null) {
$this->locale = [LC_ALL => $this->code];
} else {
$this->locale = Locale::normalize($locale);
}
return $this;
}
/**
* @param string $name
* @return $this
*/
protected function setName(string $name = null)
{
$this->name = trim($name ?? $this->code);
return $this;
}
/**
* @param array $slugs
* @return $this
*/
protected function setSlugs(array $slugs = null)
{
$this->slugs = $slugs ?? [];
return $this;
}
/**
* @param array $smartypants
* @return $this
*/
protected function setSmartypants(array $smartypants = null)
{
$this->smartypants = $smartypants ?? [];
return $this;
}
/**
* @param array $translations
* @return $this
*/
protected function setTranslations(array $translations = null)
{
$this->translations = $translations ?? [];
return $this;
}
/**
* @param string $url
* @return $this
*/
protected function setUrl(string $url = null)
{
$this->url = $url;
return $this;
}
/**
* Returns the custom slug rules for this language
*
* @return array
*/
public function slugs(): array
{
return $this->slugs;
}
/**
* Returns the custom SmartyPants options for this language
*
* @return array
*/
public function smartypants(): array
{
return $this->smartypants;
}
/**
* Returns the most important
* properties as array
*
* @return array
*/
public function toArray(): array
{
return [
'code' => $this->code(),
'default' => $this->isDefault(),
'direction' => $this->direction(),
'locale' => $this->locale(),
'name' => $this->name(),
'rules' => $this->rules(),
'url' => $this->url()
];
}
/**
* Returns the translation strings for this language
*
* @return array
*/
public function translations(): array
{
return $this->translations;
}
/**
* Returns the absolute Url for the language
*
* @return string
*/
public function url(): string
{
$url = $this->url;
$url ??= '/' . $this->code;
return Url::makeAbsolute($url, $this->kirby()->url());
}
/**
* Update language properties and save them
*
* @internal
* @param array $props
* @return static
*/
public function update(array $props = null)
{
// don't change the language code
unset($props['code']);
// make sure the slug is nice and clean
$props['slug'] = Str::slug($props['slug'] ?? null);
$kirby = App::instance();
$updated = $this->clone($props);
// validate the updated language
LanguageRules::update($updated);
// trigger before hook
$kirby->trigger('language.update:before', [
'language' => $this,
'input' => $props
]);
// convert the current default to a non-default language
if ($updated->isDefault() === true) {
$kirby->defaultLanguage()?->clone(['default' => false])->save();
$code = $this->code();
$site = $kirby->site();
touch($site->contentFile($code));
foreach ($kirby->site()->index(true) as $page) {
$files = $page->files();
foreach ($files as $file) {
touch($file->contentFile($code));
}
touch($page->contentFile($code));
}
} elseif ($this->isDefault() === true) {
throw new PermissionException('Please select another language to be the primary language');
}
$language = $updated->save();
// make sure the language is also updated in the Kirby language collection
App::instance()->languages(false)->set($language->code(), $language);
// trigger after hook
$kirby->trigger('language.update:after', [
'newLanguage' => $language,
'oldLanguage' => $this,
'input' => $props
]);
return $language;
}
}