<?php
/*******************************************************************************
 * Copyright (c) 2013 Eclipse Foundation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Christopher Guindon (Eclipse Foundation)- initial API and implementation
 *******************************************************************************/
if(basename(__FILE__) == basename($_SERVER['PHP_SELF'])){exit();}

class CompareController{

  private $App = NULL;

  protected $os_display = '';

  protected $display = '';

  private $platform = array();

  private $legend = array();

  private $devmode = FALSE;

  private $images = array(
        0 => '',
        1 => array('included', 'check.jpg'),
        //2 => array('partially included', 'checkpartial.jpg'),
        2 => array('Included (with Source)', 'checksource.jpg'),
        );

  protected $release = 'oxygen';

  private $header = array();

  private $header_strip = array(
        '(includes Incubating components)',
        'Eclipse IDE for ',
        'Eclipse for ',
        'Eclipse IDE for ',
        'Developers',
        'Software',
        'Eclipse'
        );

  private $row = array();

  private $path_xml_download = '/home/data/httpd/writable/community/';

  protected $features_accepted = array();

  protected $features_list = array();

  private $path_xml_packages = 'Win.xml';

  private $prefix_package = '';

  public $protocol = 'http';

  public function __construct(App $App) {

    $this->App = $App;

    if(!empty($this->App->devmode) && $this->App->devmode == TRUE) {
      $this->path_xml_download = $_SERVER['DOCUMENT_ROOT'] . '/downloads-xml/';
    }
    $this->protocol = $this->App->getHTTPPrefix();
    $this->setupPlatform($this->App);
    $this->features_accepted = $this->getFeaturesXml();
  }

  public function setRelease($release){
    $releases = array('juno', 'kepler', 'luna', 'mars','neon', 'oxygen');
    if (in_array($release, $releases)) {
      $this->release = $release;
      $this->features_list = $this->getFeaturesList();
    }
  }
  public function getLegend(){
    foreach ($this->images as $id => $i) {
      $this->legend[] = $this->getLegendImage($id);
    }
    return implode(' ', $this->legend);
  }

  public function setPrefixPackage($prefix){
    $this->prefix_package = $prefix . 'Cache';
    $this->prepareDownloads();
  }

  function getOs() {
    return $this->os_display;
  }

  protected function prepareDownloads() {
    $od = $this->os_display;
    if ($od == "linux" || $od == "linux-x64") {
      $this->display = "Linux";
      $this->updatePackages($this->prefix_package . "Linux.xml");
    } elseif ($od == "macosx" || $od == "cocoa64") {
      $this->display = "Mac OS X";
      $this->updatePackages($this->prefix_package . "Cocoa.xml");
    } elseif ($od == "carbon") {
      $this->display = "Mac OS X";
      $this->updatePackages($this->prefix_package . "Carbon.xml");
    } else {
      $this->display = "Windows";
      $this->updatePackages($this->prefix_package . "Win.xml");
    }
  }

  public function updatePackages($path){

    $this->path_xml_packages = $path;
    $packages = simplexml_load_file($this->path_xml_download . $this->path_xml_packages, NULL, LIBXML_NOCDATA);
    $this->packages = $this->hackPackages($packages);
  }

  public function getPackages($package = NULL){
    foreach ($this->packages as $p) {
       if ($p['package_bugzilla_id'] == $package) {
         return $p;
       }
    }
    return $this->packages;
  }

  public function getReadableFeature($id = NULL){
    if(is_null($id) || $id == "" || empty($this->features_list[$id])){
      return FALSE;
    }
    $this->features_list[$id]['name'] = (substr($this->features_list[$id]['name'], 0, 8) == 'Eclipse ') ?  str_replace('Eclipse ', '', $this->features_list[$id]['name']) : $this->features_list[$id]['name'];
    if($this->features_list[$id]['name'] == "%feature.label"){
      return FALSE;
    }
    return $this->features_list[$id];

  }

  public function compareOutput(){
    $this->getPackageData();
    ob_start();
    ?>
    <table id="compareTable" class="table"><thead><tr>
      <?php
      foreach($this->header as $t){
        print $t;
      }
      ?>
    </tr></thead><tbody>
      <?php
      $count = 0;
      foreach($this->row as $t){
        $count++;
        print '<tr id="row-' . $count . '">';
          foreach($t as $c){
            print $c;
            }
         print '</tr>';
      }
      ?>
    </tbody></table>
    <?php
    return ob_get_clean();
  }

  private function getFeaturesXml(){
    //feature restriction
    $url = simplexml_load_file($this->path_xml_download . 'featuresRestriction.xml');
    $json = json_encode($url);
    return json_decode($json, TRUE);
  }

  private function getFeaturesList(){
    //readable features
    $url = $this->path_xml_download . 'features' . ucfirst($this->release) . '.json';
    $json = json_decode(file_get_contents($url), TRUE);
    return $this->renameFeatures($json);

  }

  private function hackPackages($p) {

    //adding RCP to all packages.
    foreach($p->package as $f){
      $ex = explode(',;', $f->features);
      if (!in_array('org.eclipse.rcp', $ex)) {
        $f->features = $f->features . 'org.eclipse.rcp,;';
      }

      //Scout
      if($f['icon'] == 'http://www.eclipse.org/downloads/images/scout.jpg'){
        $f->features = $f->features . 'org.eclipse.scout.source,;';
      }

      if($f['icon'] == 'http://www.eclipse.org/downloads/images/dsl-package.jpg'){
        $f->features =  $f->features . 'org.eclipse.rcp.source,;org.eclipse.cvs.source,;org.eclipse.jdt.source,;org.eclipse.pde.source,;org.eclipse.xtend.sdk.source,;org.eclipse.xtext.sdk.source';
      }
      $count = 1;
      $f['icon'] = str_replace('http://www.eclipse.org' , '' , $f['icon'], $count);
      $f['id'] = $f['package_bugzilla_id'];
      $f['url'] = str_replace('http:' , '' , $f['url'], $count);
      $f['downloadurl'] = str_replace('http:' , '' , $f['downloadurl'], $count);
      $f['downloadurl64'] = str_replace('http:' , '' , $f['downloadurl64'], $count);
    }

    return $p;
  }

  private function renameFeatures($f) {
    return $f;
  }

  private function getPackageData(){

    $count = 0;

    $this->header[] = '<td class="col-' . $count . '"></td>';
    $this->row['radio'][]  = '<td id="td_info" class="col-' . $count . '"><span>Select packages to compare</span></td>';

    //Setting up the first two rows
    foreach ($this->packages->package as $p) {
      $count++;
      $name =  str_replace(' and ', '/', str_replace($this->header_strip, '', $p['name']));
      $this->row['radio'][] = '<td class="col-' . $count . '"><input type="checkbox" name="controls" id="controls-' . $count . '" value="col-' . $count . '" class="input-radio"/></td>';
      $this->header[] = '<td class="col-' . $count . '"><a href="' . $this->protocol . '://eclipse.org' . $p['url'] . '" title="' . $p['name'] . '"><img width="32" src="' . $p['icon'] . '"><br/>' . $name . '</a></td>';
    }

    //creating a row from each feature
    foreach($this->features_accepted['item'] as $a){
      $count = 0;
      $multif = explode(';', $a);
      $rfeatures = $this->getReadableFeature($multif[0]);
      if(empty($rfeatures)){
        continue;
      }
      $this->row[$multif[0]][] = '<td class="td_feature-name col-' . $count . '"><span title="' . $rfeatures['description'] . '">' .$rfeatures['name'] . '</span></td>';
      foreach($this->packages->package as $p){
        $count++;
        $xfeatures = explode(",;", $p->features);
        foreach($multif as $aa){
          if(!empty($this->features_list[$aa]['id']) && in_array($this->features_list[$aa]['id'].'.source', $xfeatures)){
            $img = 2;
            break;
          }elseif (in_array($aa, $xfeatures)){
            $img = 1;
            break;
          /*}elseif ($a == 'org.eclipse.rcp'){
            $img = 1;*/
          }else{
            $img = 0;
          }
        }
        $this->row[$multif[0]][] =  '<td class="col-' . $count . '">' . $this->getLegendImage($img) . '</td>';
      }
    }
  }

  private function getLegendImage($id = 0){
    if(!$id){
      return '&nbsp;';
    }

    $image_prefix = '/downloads/images/';
    return '<img width="16" src="' . $image_prefix . $this->images[$id][1] . '" alt="' . $this->images[$id][0] . '"><span class="check-description">'. $this->images[$id][0] . '</span>';
  }

  public function getRelease(){
    return  $this->release;
  }

  private function setupPlatform($App) {
    $this->os_display = (!isset($_GET['osType'])) ? $this->App->getClientOS() : $_GET['osType'];
    if($this->os_display == 'linux-x64'){
      $this->os_display = 'linux';
    }

    //default to win32 if $this->App->getClientOS() is returning something strange.
    $platform = array('win32', 'linux', 'macosx');
    if(!in_array($this->os_display, $platform)){
      $this->os_display = 'win32';
    }

    $this->platform['win32'] = array('name' => 'Windows', 'shortname' => 'Windows');
    $this->platform['linux'] = array('name' => 'Linux', 'shortname' => 'Linux');
    $this->platform['macosx'] = array('name' => 'Mac OS X (Cocoa)','shortname' => 'Mac OS X');

  }
}