/includes/classes/requesthandler.php

<?php

/**
 * RequestHandler
 *
 * Handles a request
 */
class RequestHandler
{
  private $request;

  /**
   * Initialise request handler
   *
   * @param Array $request The request arguments (basically $_GET)
   */
  public function __construct($request)
  {
    $this->request = $request;
  }

  /**
   * Handle the request
   */
  public function handle()
  {
    $data = $this->getPageData();
    $html = render("theme/templates/html.tpl.php", $data);
    echo $html;
  }

  /**
   * Get the page data (dummy data)
   *
   * @return array Page data
   */
  private function getPageData()
  {
    $page = $this->getRequestedUrl();

    $data = array(
      "title"   => ucfirst(text($page)),
      "content" => array(
        "#main-menu"      => $this->getMainMenu(),
        "#secondary-menu" => $this->getSecondaryMenu(),
        "#overlay"        => array(
          "profile"       => render("theme/templates/content/overlay-profile.tpl.php"),
          "notifications" => render("theme/templates/content/overlay-notifications.tpl.php"),
          "teams"         => render("theme/templates/content/overlay-teams.tpl.php"),
          "phonebook"     => render("theme/templates/content/overlay-phonebook.tpl.php"),
        ),
        "#tertiary-menu"  => '',
        "#widgets"        => array(),
      )
    );

    switch($page)
    {
      case "home":
        $data["title"]                      = "Timeline";
        $data["content"]["#content"]        = render("theme/templates/content/timeline.tpl.php", array("messages" => $this->getDummyTimelineItems()));
        $data["content"]["#tertiary-menu"]  = $this->getTertiaryMenu();
        $data["content"]["#widgets"]        = $this->getDummyWidgets();
        break;
      case "blogs":
      case "planner":
      case "documents":
        $data["content"]["#content"]        = render("theme/templates/content/{$page}.tpl.php");
        $data["content"]["#tertiary-menu"]  = $this->getTertiaryMenu();
        $data["content"]["#widgets"]        = $this->getDummyWidgets();
        break;
      default:
        $data["content"]["#content"]        = str_repeat("body content ", 130);
        break;
    }

    return $data;
  }

  /**
   * Get Secondary menu (dummy implementation)
   *
   * @return array Array with items for the menu
   */
  private function getSecondaryMenu()
  {
    $params = array(
      "profile" => $this->getRandomProfile(),
    );
    return render("theme/templates/content/secondary-menu.tpl.php", $params);
  }

  /**
   * Get Main menu (dummy implementation)
   *
   * @return array Array with items for the menu
   */
  private function getMainMenu()
  {
    $menuList = array(
      "/"              => "home",
      "/getstuffdone"  => "Get stuff done",
      "/news"          => "news",
    );

    return $this->createMenuItemsArray($menuList);
  }

  /**
   * Get Tertiary menu (dummy implementation)
   *
   * @return array Array with items for the menu
   */
  private function getTertiaryMenu()
  {
    $active = $this->getRequestedUrl();
    return render("theme/templates/content/tertiary-menu.tpl.php", array("active" => $active));
  }

  /**
   * Create an array of menu items based on a menuList array
   *
   * @param $menuList
   * @return array
   */
  private function createMenuItemsArray($menuList)
  {
    $menu = array();
    foreach ($menuList as $path => $label)
    {
      $menu[] = $this->createMenuItem($path, $label, false);
    }

    return $menu;
  }

  /**
   * Create a menu item
   *
   * @param String $path The path/url for this menu item
   * @param String $label The name for this menu item
   * @param bool|FALSE $isActive Wether this menu item is currently active
   * @return array
   */
  private function createMenuItem($path, $label, $icon=false, $isActive=false)
  {
    $class = strtolower(preg_replace('/[^[a-zA-Z0-9]]/', '-', $label));

    $classes = array();
    $classes[] = "menu-item";
    $classes[] = "menu-item-".$class;
    if ($icon)
      $classes[] = "icon-".$class;

    return array(
      "path" => $path,
      "label" => $label,
      "active" => $isActive,
      "classes" => implode(' ', $classes),
    );
  }

  /**
   * Get the requested URL
   *
   * @return string
   */
  private function getRequestedUrl()
  {
    return array_key_exists("q", $this->request) ? $this->request["q"] : "home";
  }


  /**
   * Get some dummy timeline items
   *
   * @return array
   */
  private function getDummyTimelineItems()
  {
    $randomPostDates = $this->generateRandomPostDateList();

    $items = array();
    for ($i=1; $i<10; $i++)
    {
      $items[] = array(
        "profile"       => $this->getRandomProfile(),
        "text"          => file_get_contents('http://loripsum.net/api'),
        "post-date"     => $this->getRandomItemFromArray($randomPostDates)
      );
    }
    return $items;
  }

  /**
   * Generate a list of random postdates
   *
   * @return array
   */
  private function generateRandomPostDateList()
  {
    $randomPostDates = array();

    for($i=0; $i<10; $i++)
    {
      $randomPostDates[] = "1 hour ago";
      $randomPostDates[] = rand(2,59) ." minutes ago";
      $randomPostDates[] = rand(2,date("H")) ." hours ago";

      $yesterdaystamp = mktime(rand(0,23),rand(0,59),0, date("m"), date("d"),date("Y"));
      $randomPostDates[] = "yesterday at ".date("H:i", $yesterdaystamp);

      $randomDateStamp = mktime(12, 0, 0, date("m"), date("d") - rand(1,100),date("Y"));
      $randomPostDates[] = "on ".date("d-m-Y", $randomDateStamp);
    }

    return $randomPostDates;
  }

  /**
   * Get a random item from the given array
   *
   * @param Array $options Options to choose from
   * @return mixed
   */
  private function getRandomItemFromArray($options)
  {
    return $options[rand(0,count($options)-1)];
  }

  /**
   * Get a random dummy profile
   *
   * A profile contains:
   * - User id
   * - username
   * - Path to the profile image
   *
   * @return array
   */
  private function getRandomProfile()
  {
    $id = rand(1,5);
    switch($id)
    {
      case 1:
        $name = "Dennis Luitwieler";
        break;
      default:
        $name = "Random User #".$id;
        break;
    }

    return array(
      "id"        => $id,
      "image"     => "/theme/images/profiles/". $id . ".png",
      "username"  => $name
    );
  }

  /**
   * Get some dummy widgets
   *
   * @return array
   */
  private function getDummyWidgets()
  {
    $widgets = array();

    $widgets[] = array(
      "content" => $this->getDummyFindColleaguesWidget(),
    );

    $widgets[] = array(
      "content" => $this->getDummyFindColleaguesWidget(),
    );

    $widgets[] = array(
      "content" => $this->getDummyFindColleaguesWidget(),
    );
    return $widgets;
  }

  /**
   * Get the dummy widget for finding colleagues
   *
   * @return string A Rendered Widget (HTML)
   */
  private function getDummyFindColleaguesWidget()
  {
    $profiles = array();
    for ($i=0; $i<rand(7,14); $i++)
    {
      $profiles[]= $this->getRandomProfile();
    }

    $params = array(
      "title"   => "Find someone",
      "profiles" => $profiles
    );
    return render('theme/templates/content/widgets/find-colleagues.tpl.php', $params);
  }
}