<?php
include_once($UTIL_DIR . "/convert.php");

class Event {
  public $title;
  public $time;
  public $description;
  public $flyer;

  public function show()
  {
    $str = "<div class=\"event\">\n";
    $str .= "  <div class=\"event_title\">" . 
      htmlspecialchars_decode($this->title, ENT_QUOTES) . "</div>\n";
    $str .= "  <div class=\"event_time\">" . date("D M jS Y", $this->time) . "</div>\n";
    $str .= "  <div class=\"event_description\">" . 
      htmlspecialchars_decode($this->description, ENT_QUOTES) . "</div>\n";
    if($this->flyer) {
      $str .= "  <img class=\"event_flyer\" alt=\"flyer\" src=\"gfx/flyers/" . $this->flyer . "\"/>\n";
    }
    $str .= "</div>\n";
    return $str;
  }

  public function Event($title, $time, $description, $flyer = "")
  {
    $this->title = $title;
    $this->time = $time;
    $this->description = $description;
    $this->flyer = $flyer;
  }
}

class Events {

  private $file;
  private $events = array();

  // Admin config
  public $admin_title = "Events";
  public $admin_submodules = array("New Event" => "new",
				   "Edit Event" => "edit",
				   "Delete Event" => "delete");

  public function admin($sub, $action, $vars)
  {
    switch($sub) {
    case "new":
      echo "New";
      break;
    case "edit":
      echo "Edit";
      break;
    case "delete":
      echo "Delete";
      break;
    }
  }

  public function run($params)
  {
    foreach($params as $param) {
      switch($param) {
      case "coming":
	return $this->showcoming(-1);
	break;

      case "old":
      default:
	return $this->showold(-1);
	break;
      }
    }
  }

  public function showcoming($number)
  {
    $str = "";

    $foundany = false;

    // Key sort
    ksort($this->events);

    // If number is -1 show all shows.
    if($number == -1) $number = 100000;
		
    foreach($this->events as $event) {
      if($event->time >= time()) {
	$foundany = true;
	$str .= $event->show();
	$number--;
      }
      if(!$number) return $str;
    }

    if($foundany == false) return "No shows available at the moment.";
    return $str;
  }

  public function showold($number)
  {
    $str = "";

    // Key sort
    krsort($this->events);

    // If number is -1 show all shows.
    if($number == -1) $number = 100000;

    foreach($this->events as $event) {
      if($event->time <= time()) {
	$str .= $event->show();
	$number--;
      }
      if(!$number) return $str;
    }
    return $str;
  }
	
  public function add($event) {
    $key = $event->time;
    //		array_push($this->events, $event);
    $this->events[$key] = $event;
  }
	
  public function write()
  {
    $fp = fopen($this->file, "w");
    fwrite($fp, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");

    fwrite($fp, "<events>\n");
    foreach($this->events as $event) {
      fwrite($fp, "  <event title=\"" .
	     htmlspecialchars($event->title, ENT_QUOTES, "UTF-8") . "\"\n");
      fwrite($fp, "         time=\"" . $event->time . "\"\n");
      fwrite($fp, "         description=\"" .
	     htmlspecialchars($event->description, ENT_QUOTES, "UTF-8") . "\"\n");
      fwrite($fp, "         flyer=\"" . $event->flyer . "\">\n");
      fwrite($fp, "  </event>\n");
    }
    fwrite($fp, "</events>\n");

    fclose($fp);
  }
	
  private function read()
  {
    $dom = new DomDocument;
    $dom->preserveWhiteSpace = FALSE;
    $dom->load($this->file);
    $params = $dom->getElementsByTagName('event');

    foreach ($params as $param) {
      $event = new Event($param->getAttribute('title'),
			 $param->getAttribute('time'),
			 $param->getAttribute('description'),
			 $param->getAttribute('flyer'));
      $this->add($event);
    }
  }

  public function Events($file)
  {
    $this->file =  $file;
    if(file_exists($file)) $this->read();
  }

}

function events_init()
{
  global $DATA_DIR;
  return new Events($DATA_DIR . "/events.xml");
}

?>