<?php
/**
* File list indexed by locale codes
*/
class Loco_fs_LocaleFileList extends Loco_fs_FileList {
/**
* Look up locale entries by their tag
* @var array
*/
private $index = [];
/**
* @return Loco_fs_LocaleFileList
*/
public function addLocalized( Loco_fs_LocaleFile $file ){
$i = count($this);
$this->add( $file );
if( count($this) !== $i ){
if( $key = $file->getSuffix() ){
$this->index[$key][] = $i;
}
}
return $this;
}
/**
* Get a new list containing just files for a given locale (exactly)
* @return Loco_fs_LocaleFileList
*/
public function filter( $tag ){
$list = new Loco_fs_LocaleFileList;
if( isset($this->index[$tag]) ){
foreach( $this->index[$tag] as $i ){
$list->addLocalized( $this[$i] );
}
}
return $list;
}
/**
* Get a unique list of valid locales for which there are files
* @return array<Loco_Locale>
*/
public function getLocales(){
$list = [];
foreach( array_keys($this->index) as $tag ){
$locale = Loco_Locale::parse($tag);
if( $locale->isValid() ){
$list[$tag] = $locale;
}
}
return $list;
}
/**
* {@inheritdoc}
* @return Loco_fs_LocaleFileList
*/
public function augment( Loco_fs_FileList $list ){
foreach( $list as $file ){
$this->addLocalized( $file );
}
return $this;
}
}