<?php
  /**
   * @file   : classes/display/DisplayHandler.class.php
   * @author : zero <zero@nzeo.com>
   * @desc   : display 객체
   *           Request Method에 따라서 html or xml 출력방법을 결정한다
   *           xml : oModule의 variables를 simple xml 로 출력
   *           html : oModule의 template/variables로 html을 만들고 contents_html로 처리
   *                  plugin이나 layout의 html과 연동하여 출력
   *
   **/

  class DisplayHandler {

    // 출력하는 컨텐츠의 사이즈
    var $content_size = 0;

    // public void printContent() /*{{{*/
    function printContent($oModule) {
      // header 출력
      $this->_printHeader();

      // request method에 따른 처리
      $content = $this->getContent($oModule);

      // 요청방식에 따라 출력을 별도로
      if(Context::getRequestMethod()!="XMLRPC") {
        Context::set('content', $content);

        // content 래핑 (common/tpl/default.html)
        require_once("./classes/template/TemplateHandler.class.php");
        $oTemplate = new TemplateHandler();
        $output = $oTemplate->compile($oModule->layout_path, $oModule->layout_tpl);
      } else {
        $output = $content;
      }

      $this->content_size = strlen($output);
      print $output;

      // 디버깅 데이터 출력
      $this->_debugOutput();
    }/*}}}*/

    // public void getContent() /*{{{*/
    function getContent($oModule) {
      // request method에 따른 처리
      return $this->_toDoc($oModule);
    }/*}}}*/

    /**
     * 문서 출력
     **/
    // private string _toDoc($oModule) /*{{{*/
    function _toDoc($oModule) {
      if(Context::getRequestMethod() == 'XMLRPC') $content = $this->_toXmlDoc($oModule);
      else $content = $this->_toHTMLDoc($oModule);
      return $content;
    }/*}}}*/

    // private string _toXmlDoc($oModule) /*{{{*/
    function _toXmlDoc($oModule) {
      $xmlDoc  = "<response>\n";
      $xmlDoc .= sprintf("<error>%s</error>\n",$oModule->getError());
      $xmlDoc .= sprintf("<message>%s</message>\n",$oModule->getMessage());

      $variables = $oModule->getVariables();
      if(count($variables)) {
          foreach($variables as $key => $val) {
              if(is_string($val)) $val = '<![CDATA['.$val.']]>';
              $xmlDoc .= "<{$key}>{$val}</{$key}>\n";
          }
      }

      $xmlDoc .= "</response>";

      return $xmlDoc;
    }/*}}}*/

    // private string _toHTMLDoc($oModule) /*{{{*/
    function _toHTMLDoc($oModule) {
      // template handler 객체 생성
      require_once("./classes/template/TemplateHandler.class.php");
      $oTemplate = new TemplateHandler();

      // module tpl 변환
      $template_path = $oModule->getTemplatePath();
      $tpl_file = $oModule->getTemplateFile();
      return $oTemplate->compile($template_path, $tpl_file);
    }/*}}}*/

    // public int getContentSize() /*{{{*/
    function getContentSize() {
      return $this->content_size;
    }/*}}}*/
    
    // private void _debugOutput()/*{{{*/
    // __DEBUG__가 true일 경우 각 부분의 실행시간등을 debugPrint 함수를 이용해서 출력
    // 개발시나 테스트시에 config/config.inc.php의 __DEBUG__를 true로 세팅하고
    // tail -f ./files/_debug_message.php로 하여 console로 확인하면 편리함
    function _debugOutput() {
      if(!__DEBUG__) return;
      $end = getMicroTime();

      $buff  = "\n\n** Debug at ".date('Y-m-d H:i:s')." ************************************************************\n";
      $buff .= "\n- Request/ Response info\n";
      $buff .= sprintf("\tRequest URI \t\t\t: %s:%s%s%s%s\n", $_SERVER['SERVER_NAME'], $_SERVER['SERVER_PORT'], $_SERVER['PHP_SELF'], $_SERVER['QUERY_STRING']?'?':'', $_SERVER['QUERY_STRING']);
      $buff .= sprintf("\tRequest method \t\t\t: %s\n", $_SERVER['REQUEST_METHOD']);
      $buff .= sprintf("\tResponse contents size\t\t: %d byte\n", $this->getContentSize());
      if($GLOBALS['__db_queries__']) {
        $buff .= "\n- DB Queries\n";
        $buff .= $GLOBALS['__db_queries__'];
      }
      $buff .= "\n- Elapsed time\n";

      if($GLOBALS['__db_elapsed_time__']) $buff .= sprintf("\tDB queries elapsed time\t\t: %0.5f sec\n", $GLOBALS['__db_elapsed_time__']);
      $buff .= sprintf("\tclass file load elapsed time \t: %0.5f sec\n", __RequireClassEndTime__-__RequireClassStartTime__);
      $buff .= sprintf("\tTemplate compile elapsed time\t: %0.5f sec\n", $GLOBALS['__template_elapsed__']);
      $buff .= sprintf("\tPHP elapsed time \t\t: %0.5f sec\n", $end-__StartTime__-$GLOBALS['__template_elapsed__']-$GLOBALS['__db_elapsed_time__']-(__RequireClassEndTime__-__RequireClassStartTime__));
      $buff .= sprintf("\tTotal elapsed time \t\t: %0.5f sec", $end-__StartTime__);

      debugPrint($buff, false);
    }/*}}}*/

    /**
     * 헤더 출력
     ***/
    // private void _printHeader()/*{{{*/
    function _printHeader() {
      if(Context::getRequestMethod() == 'XMLRPC') return $this->_printXMLHeader();
      else return $this->_printHTMLHeader();
    }/*}}}*/

    // private void _printXMLHeader()/*{{{*/
    function _printXMLHeader() {
      header("Content-Type: text/xml; charset=UTF-8");
      header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
      header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
      header("Cache-Control: no-store, no-cache, must-revalidate");
      header("Cache-Control: post-check=0, pre-check=0", false);
      header("Pragma: no-cache");
    }/*}}}*/

    // private void _printHTMLHeader()/*{{{*/
    function _printHTMLHeader() {
      header("Content-Type: text/html; charset=UTF-8");
      header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
      header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
      header("Cache-Control: no-store, no-cache, must-revalidate");
      header("Cache-Control: post-check=0, pre-check=0", false);
      header("Pragma: no-cache");
    }/*}}}*/
  }
?>