<?php
/**
 * *****************************************************************************
 * Copyright (c) 2017 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:
 * Wayne Beaton (Eclipse Foundation)- initial API and implementation
 * *****************************************************************************
 */
require_once dirname ( __FILE__ ) . '/../../eclipse.org-common/system/app.class.php';
require_once dirname ( __FILE__ ) . '/../../eclipse.org-common/system/nav.class.php';
require_once dirname ( __FILE__ ) . '/../../eclipse.org-common/system/menu.class.php';
$App = new App ();
$Nav = new Nav ();
$Menu = new Menu ();
include ($App->getProjectCommon ());

require_once dirname ( __FILE__ ) . '/../classes/Project.class.php';
require_once dirname ( __FILE__ ) . '/../classes/debug.php';
require_once dirname ( __FILE__ ) . '/../classes/database.inc';

//
// Begin: page-specific settings. Change these.
$pageTitle = "Future Eclipse Project Releases";
$pageKeywords = "";
$pageAuthor = "Wayne Beaton";

class Release {
  var $project;
  var $name;
  var $date;

 function __construct($project, $name, $date) {
  $this->project = $project;
  $this->name = $name;
  $this->date = $date;
 }

 function getId() {
  return $this->project->getId();
 }

 function getUrl() {
  return $this->project->getUrl();
 }

 function getName() {
  return $this->project->getName() . ' ' . $this->name;
 }

 function getDate() {
  return $this->date;
 }
}

function getFutureReleases() {
 $releases = array();
 $sql = "
  select
   project as id, name, date
  from ProjectReleases
  where date > date(now())
  order by date";

 query('dashboard', $sql, array(), function($row) use (&$releases) {
  $project = Project::getProject($row['id']);
  $name = $row['name'];
  $date = strtotime($row['date']);
  $reviewDate = getProbableReviewDate($date);

  $releases[$reviewDate][] = new Release($project, $name, $date);
 });

 return $releases;
}

function dumpFutureReleases() {
 foreach(getFutureReleases() as $date => $releases) {
  echo "<h3>" . ($date == 0 ? "It's already too late" : ("For review on " . date('Y-m-d', $date))) . "</h3>";
  echo "<ul>";
  foreach($releases as $release) {
   echo "<li><a href=\"{$release->getUrl()}\">{$release->getName()}</a> ";
   echo date('Y-m-d', $release->getDate());
   dumpOpenCQs($release);
   echo "</li>";
  }
  echo "</ul>";
 }
}

function dumpOpenCQs(Release $release) {
 echo "<ul>";
 $sql = '
  select
   b.bug_id as id, b.short_desc as title
  from bugs as b
   join components as c on b.component_id=c.id
  where c.name=\'$id\'
   and bug_status in (\'NEW\', \'REOPENED\')';

 query ('ipzilla', $sql, array('$id' => $release->getId()), function ($row) {
  $id = $row ['id'];
  $title = $row ['title'];
  echo "<li><a target=_blank href=\"https://dev.eclipse.org/ipzilla/show_bug.cgi?id=$id\">$id</a> $title</li>";
 });
 echo "</ul>";
}

function getProbableReviewDate($date) {
 $diff = date('w', $date) - 3; // '3' means Wednesday
 if ($diff < 0)
  $diff += 7;

  $date = strtotime("-$diff days", $date);
  $now = strtotime('now');
  $dates = array();
  while ($date > $now) {
    // There's probably a better way to do this, but
    // the month boundaries are icky, this works, and is simple.
    if (isFirstOrThirdWeek($date)) {
     return $date;
    }
    $date = strtotime("-1 week", $date);
  }
  return 0;
}

/**
 * Answers whether the provided date represents the
 *
 * @param int $date
 */
function isFirstOrThirdWeek($date) {
 $day = date('j', $date) - 1; // 0-based day of the month
 if (floor($day / 7) == 0)
  return true; // first week
 if (floor($day / 7) == 2)
  return true; // third week
 return false;
}

ob_start ();
?>
<div id="maincontent">
<div id="midcolumn">
<h1><?=$pageTitle?></h1>
<p><strong>EXPERIMENTAL</strong>. This page shows a list of upcoming releases and&mdash;where they
exist&mdash;corresponding lists of open intellectual property review requests (CQs). Note that the
CQs are associated with the projects, not with any particular release. This is for informational
purposes only.</p>

<?php dumpFutureReleases(); ?>

</div>
</div>

<?php
$html = ob_get_contents ();
ob_end_clean ();
$App->generatePage ( $theme, $Menu, $Nav, $pageAuthor, $pageKeywords, $pageTitle, $html );
?>