<?php

/**

 * require framework

 */

require_once './setup.php';



/**

 * path

 */

$tmp_arr = explode('/', $_SERVER['PHP_SELF']);

$examples_root_file = array_pop($tmp_arr);

$examples_root_dir  = implode('/', $tmp_arr);

$examples_root_dir  = 'http://'.$_SERVER['HTTP_HOST'].$examples_root_dir.'/';

unset($tmp_arr);



// -------------------------------------------------------------



/**

 * @return array file & subdir listing, without "." and ".."

 */

function getDirContents($dir)

{

  $dir = rtrim($dir, '/\\');

  $files = scandir($dir);

  if (!is_array($files)) {

      return false;

  }

  //strip . and ..

  array_shift($files);

  array_shift($files);

  return $files;

}



// -------------------------------------------------------------



/**

 * @param array file list

 * @param string path

 */

function stripFiles($dirContents, $path)

{

  $dirs = array();

  foreach ($dirContents as $file)

  {

    if (is_dir($path . DIRECTORY_SEPARATOR . $file))

      $dirs[] = $file;

  }



  $ignored = array('.svn', 'templates');



  if (file_exists($path. DIRECTORY_SEPARATOR . 'ignore.ini'))

      $ignored = array_merge($ignored, parse_ini_file($path . DIRECTORY_SEPARATOR . 'ignore.ini'));



  foreach ($dirs as $k => $dir)

  {

    if (in_array($dir, $ignored))

      unset($dirs[$k]);

  }



  return $dirs;

}



// -------------------------------------------------------------



/**

 * @param reference to array

 * @param integer number of levels to scan

 */

function createTree(& $node, $levels = 1)

{

  if ($levels < 1)

      return;



  $dirContents = getDirContents($node['path']);

  if ($dirContents == false)

      return;



  if (!in_array('desc.ini', $dirContents))

  {

    $subdirs = stripFiles($dirContents, $node['path']);

    foreach ($subdirs as $subdir)

    {

      $child = & addChild($node, $subdir);

      createTree($child, $levels - 1);

    }

  }

}



// -------------------------------------------------------------



/**

 * @param reference to array (tree node)

 * @param string name of the node

 */

function & addChild(&$node, $name)

{

  $node['children'][$name] = array('name'  => $name,

                                   'path'  => $node['path'] . $name . DIRECTORY_SEPARATOR,

                                   'group' => $node['group'] . $name . '/',

                                   'children' => array());



  return $node['children'][$name];

}



// -------------------------------------------------------------



function treeToHtml(&$node)

{

  $html = '<li>';

  if (!file_exists($node['path'] . 'desc.ini'))

  {

    $html .= '<a href="index.php?group='.$node['group'].'">'.$node['name'].'</a>';

    $html .= '<ul>';

    if (array_key_exists('children', $node) && is_array($node['children']))

    {

      foreach ($node['children'] as $child)

          $html .= treeToHtml($child);

    }

    $html .= '</ul>';

  }

  else

  {

    $html .= '<a href="show.php?group='.$node['group'].'">'.$node['name'].'</a>';

  }

  $html .= '</li>';

  return $html;

}



// -------------------------------------------------------------



function get_breadcrumbs($path)

{

  $nodes = array();

  $dirs = explode('/', $path);

  $dirs = array_filter($dirs, 'purge_empty');



  while (count($dirs))

  {

    $nodes[] = array('path' => implode('/', $dirs).'/',

                     'name' => array_pop($dirs));

  }



  //add examples root

  $nodes[] = array('path' => '',

                   'name' => 'examples');



  return array_reverse($nodes);

}



// -------------------------------------------------------------



function purge_empty($var) {

    return !empty($var);

}





function getDescriptionFileData($desc_file, $root)

{

  $data = parse_ini_file($desc_file, true);



  $newData = array();

  foreach ($data as $name => $row)

  {

    $srcfiles = array();



    if(!is_array($row) && $name == 'title')

    {

      $newData['title'] = $row;

      continue;

    }



    foreach ($row as $key => $file)

    {

      if (is_numeric($key))

        $srcfiles[] = array('path' => "./showtemplate.php?file=$root{$file}",

                            'file' => $file);

    }



    $newData['examples'][] = array('description' => $row['description'],

                                   'exec' => "./run.php?file=$root{$row['php']}",

                                   'compiled' => "./compiled.php?file=$root{$row['template']}",

                                   'php_file' => array('path' => "./showsource.php?file=$root{$row['php']}",

                                                       'file' => $row['php']),

                                   'templates' => $srcfiles);

  }



  return $newData;

}

?>