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<?php
namespace SMW\Localizer;
use RuntimeException;
use SMW\Exception\JSONFileParseException;
/**
* @license GPL-2.0-or-later
* @since 3.2
*
* @author mwjames
*/
class LocalMessageProvider implements MessageLocalizer {
private /* string */ $file = '';
private /* ?string */ $languageCode;
private /* string */ $languageFileDir = '';
private /* string */ $fallbackLanguageCode = 'en';
private /* array */ $contents = [];
/**
* @since 3.2
*
* @param string $file
* @param ?string $languageCode
*/
public function __construct( string $file, ?string $languageCode = null ) {
$this->file = $file;
$this->languageCode = $languageCode;
$this->languageFileDir = !is_array( $GLOBALS['wgMessagesDirs']['SemanticMediaWiki'] )
? $GLOBALS['wgMessagesDirs']['SemanticMediaWiki']
: $GLOBALS['wgMessagesDirs']['SemanticMediaWiki'][0];
}
/**
* @since 3.2
*/
public function loadMessages() {
$this->contents = $this->readJSONFile( $this->file );
}
/**
* @since 3.2
*
* @param string $languageFileDir
*/
public function setLanguageFileDir( string $languageFileDir ) {
$this->languageFileDir = $languageFileDir;
}
/**
* @since 3.2
*
* @param string $languageCode
*/
public function setLanguageCode( string $languageCode ) {
$this->languageCode = $languageCode;
}
/**
* @since 3.2
*
* @param string|array ...$args
*
* @return bool
*/
public function has( ...$args ): bool {
$key = array_shift( $args );
$msgArgs = [];
if ( is_array( $key ) ) {
$msgArgs = $key;
$key = array_shift( $msgArgs );
}
if (
isset( $this->contents[$key][$this->languageCode] ) ||
isset( $this->contents[$key][$this->fallbackLanguageCode] ) ) {
return true;
}
return false;
}
/**
* @since 3.2
*
* @param string|array ...$args
*
* @return string
*/
public function msg( ...$args ): string {
$key = array_shift( $args );
$msgArgs = [];
if ( is_array( $key ) ) {
$msgArgs = $key;
$key = array_shift( $msgArgs );
}
if ( isset( $this->contents[$key][$this->languageCode] ) ) {
$message = $this->contents[$key][$this->languageCode];
} elseif ( isset( $this->contents[$key][$this->fallbackLanguageCode] ) ) {
$message = $this->contents[$key][$this->fallbackLanguageCode];
} else {
$message = '⧼' . htmlspecialchars( $key ) . '⧽';
}
foreach ( $msgArgs as $k => $value ) {
$message = str_replace( "$" . ++$k, $value, $message );
}
return $message;
}
private function readJSONFile( $file ) {
$file = str_replace( [ '\\', '/', '//', '\\\\' ], DIRECTORY_SEPARATOR, $this->languageFileDir . '/' . $file );
if ( !is_readable( $file ) ) {
throw new RuntimeException( "Expected a {$file} file" );
}
$contents = json_decode( file_get_contents( $file ), true );
if ( $contents !== null && json_last_error() === JSON_ERROR_NONE ) {
return $this->contents = $contents;
}
throw new JSONFileParseException( $file );
}
}