<?php

include_once($UTIL_DIR . "/convert.php");
include_once($UTIL_DIR . "/forms.php");

class NewsEntry {
  public $title;
  public $time;
  public $description;
  public $category;

  public function show()
  {
    $str = "<div class=\"news_entry\">\n";
    $str .= "  <div class=\"news_title\">" .
      htmlspecialchars_decode($this->title, ENT_QUOTES) . "</div>\n";
    $str .= "  <div class=\"news_time\">" . date("D M jS Y G:i", $this->time) . "</div>\n";
    $str .= "  <div class=\"news_description\">" .
      htmlspecialchars_decode($this->description, ENT_QUOTES) . "</div>\n";
    $str .= "</div>\n";
    return $str;
  }

	public function __toString()
	{
		return $this->title;
	}

  public function NewsEntry($title, $time, $category, $description)
  {
    $this->title = $title;
    $this->time = $time;
    $this->category = $category;
    $this->description = $description;
  }
}

class News {

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

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

	
  public function admin_add($action, $vars)
	{
		switch($action) {
		case "add":
			$n = new NewsEntry($vars["title"], totimestamp($vars, "time"), $vars["category"], $vars["description"]);
			$this->add($n);
			$this->write();
			break;
			
		case "preview":
			$n = new NewsEntry($vars["title"], totimestamp($vars, "time"), $vars["category"], $vars["description"]);
			echo "<div class=\"preview\">\n";
			echo "<div class=\"content\">\n";
			echo $n->show();
			echo "</div>\n";
			echo "</div>\n";
			echo "<p>Looking ok?</p>";
			beginform("add");
			hidden($vars);
			button("yes");
			endform();
			beginform("retry");
			hidden($vars);
			button("no");
			endform();
			break;
			
		case "retry":
			$title = $vars["title"];
			$time = totimestamp($vars, "time");
			$category = $vars["category"];
			$description = $vars["description"];
		default:
			beginform("preview");
			lineedit("Title", "title", $title);
			datetimeedit("Time", "time", $time);
			combobox("Category", "category", $category, array("Main" => "main", "Site" => "site"));
			textedit("Description", "description", $description);
			button("Post news");
			endform();
			break;
		}
	}

	public function admin_edit($action, $vars)
	{
		switch($action) {
		case "add":
			$this->news[$vars["newsid"]]->title = $vars["title"];
			$this->news[$vars["newsid"]]->time = totimestamp($vars, "time");
			$this->news[$vars["newsid"]]->category = $vars["category"];
			$this->news[$vars["newsid"]]->description = $vars["description"];
			$this->write();
			echo "\"" . $this->news[$vars["newsid"]]->title . "\" has now been edited.";
			break;
			
		case "preview":
			$n = new NewsEntry($vars["title"], totimestamp($vars, "time"), $vars["category"], $vars["description"]);
			echo "<div class=\"preview\">\n";
			echo "<div class=\"content\">\n";
			echo $n->show();
			echo "</div>\n";
			echo "</div>\n";
			echo "<p>Looking ok?</p>";
			beginform("add");
			hidden($vars);
			button("yes");
			endform();
			beginform("retry");
			hidden($vars);
			button("no");
			endform();
			break;
			
		case "edit":
		case "retry":
			if(isset($vars["title"])) $title = $vars["title"];
			else $title = $this->news[$vars["newsid"]]->title;
			if(isset($vars["time_year"])) $time = totimestamp($vars, "time");
			else $time = $this->news[$vars["newsid"]]->time;
			if(isset($vars["category"])) $category = $vars["category"];
			else $category = $this->news[$vars["newsid"]]->category;
			if(isset($vars["description"])) $description = $vars["description"];
			else $description = $this->news[$vars["newsid"]]->description;
			
			beginform("preview");
			hidden($vars);
			lineedit("Title", "title", $title);
			datetimeedit("Time", "time", $time);
			combobox("Category", "category", $category, array("Main" => "main", "Site" => "site"));
			textedit("Description", "description", $description);
			button("Post news");
			endform();
			break;
			
		case "select":
		default:
			$newslist = array();
			foreach($this->news as $newsentry) {
				$newslist[$newsentry->title] = $newsentry->time; 
			}
			beginform("edit");
			combobox("Edit this entry:", "newsid", "", $newslist);
			button("Edit...");
			endform();
			break;
		}
	}

  public function admin_delete($sub, $action, $vars)
	{
		switch($action) {
		case "delete":
			echo $this->news[$vars["newsid"]]->title . " has now been deleted.";
			unset($this->news[$vars["newsid"]]);
			$this->write();
			break;
			
		case "confirm":
			echo "Really delete: " . $this->news[$vars["newsid"]]->title . "?";
			beginform("delete");
			hidden($vars);
			button("yes");
			endform();
			beginform("select");
			hidden($vars);
			button("no");
			endform();
			break;
			
		case "select":
		default:
			$newslist = array();
			foreach($this->news as $newsentry) {
				$newslist[$newsentry->title] = $newsentry->time; 
			}
			beginform("confirm");
			combobox("Delete this entry:", "newsid", "", $newslist);
			button("Delete...");
			endform();
			break;
		}
	}

  public function admin($sub, $action, $vars)
  {
    switch($sub) {
    case "new":
			$this->admin_add($action, $vars);
      break;

    case "edit":
			$this->admin_edit($action, $vars);
      break;

    case "delete":
			$this->admin_delete($action, $vars);
      break;
    }
  }

  public function run($module)
  {
    global $show;

    switch($module) {
    case "news":
    default:
      if($show == "all") return $this->show(-1, "all");
      else return $this->show(-1, "main");
      break;
    }
  }

  public function show($number, $category)
  {
    $str = "";

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

    foreach($this->news as $newsentry) {
      if($newsentry->category == $category || $category == "all") {
				$str .= $newsentry->show();
				$number--;
      }
      if(!$number) return $str;
    }
    return $str;
  }

  public function add($newsentry) {
    $key = $newsentry->time;
    $this->news[$key] = $newsentry;
  }
	
  public function write()
  {
    $fp = fopen($this->file, "w");
    fwrite($fp, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");

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

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

    foreach ($params as $param) {
      $newsentry = new NewsEntry($param->getAttribute('title'),
																 $param->getAttribute('time'),
																 $param->getAttribute('category'),
																 $param->getAttribute('description'));
      $this->add($newsentry);
    }
		
    // Key sort
    krsort($this->news);
  }

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

}

function news_init()
{
  global $DATA_DIR;
  return new News($DATA_DIR . "/news.xml");
}
?>