Minify.php

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<?php

namespace Rsi\Fred;

class Minify extends Component{

  public $handlers = []; //!< Array with handlers (key = type, value = config).

  protected $_cache = null;
  protected $_ext = '.min.';

  /**
   * Check if a file is already minimized.
   * @param string $source  Source filename.
   * @return bool  True if the source file is already minimized.
   */
  public function alreadyMinimized($source){
    return strpos($source,$this->_ext);
  }
  /**
   * Filename for a cache.
   * @param string $source  Source filename.
   * @return string  Cache filename (empty if no cache is set).
   */
  public function cacheTarget($source){
    return $this->_cache ? $this->_cache . md5($source) . $this->_ext . \Rsi\File::ext($source) : false;
  }
  /**
   * Get a handler.
   * @param string $type  File type.
   * @return Minify\\Handler
   */
  public function handler($type){
    if(!array_key_exists($type,$this->handlers)) $this->handlers[$type] = [];
    if(!array_key_exists(null,$config =& $this->handlers[$type])){
      $class_name = $config['className'] ?? __CLASS__ . '\\Handler\\' . ucfirst($type);
      $config[null] = new $class_name($this,$config);
    }
    return $config[null];
  }

  protected function getLog(){
    return $this->component('log');
  }

  protected function _get($key){
    return $this->handler($key);
  }

}