<?php

class Template {

  var $strTemplateDir = './templates/2';
  var $strCacheDir    = './templates/_cached';
  var $strBeginTag    = '{';
  var $strEndTag      = '}';
  var $arrVars        = array();
  var $arrValues      = array();
  var $boolCache      = true;
  var $strBuffer      = null;

  function Template( ) {} // pusty konstruktor ;p

  function assign( $strVar, $strValue ) {
    $this->arrVars[]   = $this->strBeginTag . '$' . $strVar  . $this->strEndTag;
    $this->arrValues[] = $strValue;
  }

  function clear( ) {
    unset( $this->arrVars, $this->arrValues );
  }

  function display( $strFile ) {
    if( $this->boolCache ) {
      if( file_exists( $this->strCacheDir . '/' . md5( $strFile ) . '.tpl' ) && filemtime( $this->strCacheDir . '/' . md5( $strFile ) . '.tpl' ) >= time() - 300 ) {
        $resFile = fopen( $this->strCacheDir . '/' . md5( $strFile ) . '.tpl', 'r' );
        $this->strBuff = fread( $resFile, filesize( $this->strCacheDir . '/' . md5( $strFile ) . '.tpl' ) );
        echo $this->strBuff;
        fclose( $resFile );
      }
      else {
        $resFile = fopen( $this->strTemplateDir . '/' . $strFile, 'r' );
        $strBuff = fread( $resFile, filesize( $this->strTemplateDir . '/' . $strFile ) );
        $this->strBuff = str_replace( $this->arrVars, $this->arrValues, $strBuff );
        fclose( $resFile );
        echo $this->strBuff;
        $resFileCache = fopen( $this->strCacheDir . '/' . md5( $strFile ) . '.tpl', 'w' );
        fwrite( $resFileCache, $this->strBuff );
      }
    }
    else {
      $resFile = fopen( $this->strTemplateDir . '/' . $strFile, 'r' );
      $strBuff = fread( $resFile, filesize( $this->strTemplateDir . '/' . $strFile ) );
      $this->strBuff = str_replace( $this->arrVars, $this->arrValues, $strBuff );
      fclose( $resFile );
      echo $this->strBuff;
    }
  }
}
?>