<?php
namespace Kubio\Theme;
class Flags {
private static $instance = null;
private $flags = array();
private $is_dirty_value = false;
private function __construct() {
$this->flags = get_option( '__kubio_instance_flags', array() );
add_action( 'shutdown', array( $this, 'save' ) );
}
/**
* @param string $flag
* @param mixed $value
*/
public static function set( $flag, $value ) {
static::getInstance()->setFlag( $flag, $value );
}
/**
* @param string $flag
* @param mixed $value
*/
function setFlag( $flag, $value ) {
$this->withFlags( 'set', $flag, $value );
}
/**
* @param $action
* @param null $flag
* @param null $data
*
* @return mixed|null
*/
private function withFlags( $action, $flag = null, $data = null ) {
if ( $action === 'get-all' ) {
return $this->flags;
}
if ( $action === 'get' ) {
if ( isset( $this->flags[ $flag ] ) ) {
return $this->flags[ $flag ];
}
$momota_flags_defaults = apply_filters( 'kubio/instance-flags-default', array() );
if ( isset( $momota_flags_defaults[ $flag ] ) ) {
return $momota_flags_defaults[ $flag ];
}
return $data;
}
if ( $action === 'set' ) {
$this->flags[ $flag ] = $data;
$this->is_dirty_value = true;
$this->save();
return $data;
}
if ( $action === 'delete' ) {
if ( isset( $this->flags[ $flag ] ) ) {
unset( $this->flags[ $flag ] );
$this->is_dirty_value = true;
$this->save();
}
return null;
}
}
/**
* @return null
*/
private static function getInstance() {
if ( ! self::$instance ) {
self::$instance = new self();
}
return self::$instance;
}
/**
* @param string $flag
*/
public static function delete( $flag ) {
static::getInstance()->deleteFlag( $flag );
}
/**
* @param string $flag
*/
function deleteFlag( $flag ) {
$this->withFlags( 'delete', $flag );
}
/**
* @param string $flag
* @param mixed $fallback
*
* @return mixed|null
*/
public static function get( $flag, $fallback = null ) {
return static::getInstance()->getFlag( $flag, $fallback );
}
/**
* @param string $flag
* @param mixed $fallback
*
* @return mixed|null
*/
function getFlag( $flag, $fallback = null ) {
return $this->withFlags( 'get', $flag, $fallback );
}
public function save() {
if ( $this->is_dirty_value ) {
update_option( '__kubio_instance_flags', $this->flags, false );
}
}
}