SmartyWrapper.php

<?php
/** Smarty template wrapper
*
* @version $Id: Smarty.php 674 2017-07-10 23:47:11Z anrdaemon $
*/

namespace AnrDaemon\CcWeb\Wrappers;

use
  AnrDaemon\CcWeb\Interfaces;

class Smarty
implements Interfaces\TemplateManager
{
  protected $tpl;

  /** Embeddable Smarty templates.
  *
  *   Script-embedded Smarty templates.
  *   Use __halt_compiler();?> to stop PHP parsing/execution and start
  * template code. Template will start immediately past closing bracket.
  *
  * @return void
  */
  public function enableEmbed()
  {
    $this->tpl->registerFilter('pre',
      function($tpl_source, \Smarty_Internal_Template $template)
      {
        $stack = stristr($tpl_source, '__HALT_COMPILER');
        return empty($stack) ? $tpl_source : substr($stack, strpos($stack, '?>') + 2);
      }
    );
  }

  public static function wrap(\Smarty_Internal_Template $tpl)
  {
    $self = new static;
    $self->tpl = $tpl;
    return $self;
  }

// Magic!

  public function __construct(...$args)
  {
    $tpl = new \Smarty(...$args);
    $tpl::$_CHARSET = ini_get('default_charset');
    $this->tpl = $tpl;
  }

  public function __call($method, $args)
  {
    $tpl = $this->tpl->$method(...$args);
    if($tpl === $this->tpl)
    {
      return $this;
    }
    elseif($tpl instanceof \Smarty_Internal_Template)
    {
      return static::wrap($tpl);
    }
    else
    {
      return $tpl;
    }
  }

  public function __get($name)
  {
    return $this->tpl->$name;
  }

  public function __set($name, $value)
  {
    return $this->tpl->$name = $value;
  }
}