<?
class Page extends BaseObject{

	protected $types = array('public', 'private', 'admin');
	public $type;       // Public, private or admin; based on filename;

	function __construct(){
		$this->session = Session::singleton();
		$this->server = $_SERVER['SERVER_NAME'];
		$this->uri = strtolower($_SERVER['REQUEST_URI']);
		$this->local = (strstr($_SERVER['SERVER_NAME'], '.dev') || strstr($_SERVER['SERVER_NAME'], '192.168'));
		$this->file = $this->getFile();
		$this->type = $this->getType();
		$this->validatePage();
	}

	function getType($path = null){
	    $path = is_null($path) ? strtolower($this->file) : strtolower($path);
		$pieces = explode('.', array_pop(explode('/', (strpos($path, '/') === 0 ? substr($path, 1) : $path))));
		return $pieces[0];
	}
	
	/**
	 * Method: getFile():String
	 * Returns the file to use from the template.php file's querystring
	 */
	public function getFile(){
		$page = isset($_GET['p']) ? $_GET['p'] : '';
		$file = substr($this->uri, strrpos($this->uri, "/") + 1);
		if(is_file(DIR_ROOT . $file)){
		    include($file);
		    exit;
		}
		if(is_array($page) && count($page) > 0){
			$sections = [];
			foreach($page as $section){
				$sections[] = $section;
			}
			if(count($sections) > 0){
				$filestub = implode('.', $sections);
				$level = isset($this->session->user) && isset($this->session->user['level']) ? $this->session->user['level'] : 0;
				switch($level){
				    case 9:
				    case 8:
						if($file = $this->findpage('admin', $filestub)){
						    break;
						}
					case 7:
					case 6:
					case 5:
					case 4:
					case 3:
					case 2:
					case 1:
						if($file = $this->findpage('private', $filestub)){
						    break;
						}
					default:
						if($file = $this->findpage('public', $filestub)){
						    break;
						}
				}
			}else{
				$file = 'public.global.index.php';
			}
		}else{
			$file = 'public.global.index.php';
		}
		if(!isset($file) || empty($file) || $file === false){
			//$this->session->quickerror = 'You do not have access to that resource. <a href="http://' . $this->server . '/">Click here to return</a>';
			//header('Location: http://' . $_SERVER['SERVER_NAME'] . '/error.html');
			$file = 'public.global.index.php';
			header("HTTP/1.0 404 Not Found");
		}
		if(strpos($file, 'ajax.') !== false){
		    include($file);
		    exit;
		}
		return $file;
	}
	
	function findpage($level = 'public', $stub){
		if(is_file(DIR_ROOT . $level . '.' . $stub . '.php')){
			$file = $level . '.' . $stub . '.php';
		}else if(is_file(DIR_ROOT . $level . '.global.' . $stub . '.php')){
			$file = $level . '.global.' . $stub . '.php';
		}else if(is_file(DIR_ROOT . $level . '.' . $stub . '.index.php')){
			$file = $level . '.' . $stub . '.index.php';
		}
		if(!isset($file)){
		    $thisstub = preg_replace('/\.\[\]/si', ':[]', $stub);
		    if(strrpos($thisstub, '.') !== false){
		    	$newstub = substr($thisstub, 0, strrpos($thisstub, '.')) . ':[]';
		    	$newstub = preg_replace('/\:\[\]/si', '.[]', $newstub);
		    	$file = $this->findpage($level, $newstub);
		    }
		}
		return isset($file) ? $file : false;
	}
	
	function checkTypes(){
	    if(!isset($this->type)){ $this->type = $this->getType(); }
	    if(in_array($this->type, $this->types)){
	        return true;
	    }
	    return false;
	}

	function validatePage(){
	    if(!isset($this->type)){ $this->type = $this->getType(); }
	    if($this->checkTypes() !== false){
			if($this->type == 'public'){
				return true;
			}else{
				if(isset($this->session->user['level']) && $this->session->user['level'] >= 1){
					if($this->type == 'admin' && $this->session->user['level'] >= 8){
						return true;
					}else if($this->type == 'private'){
						return true;
					}else{
						$this->session->quickerror = 'You do not have access to that resource.';
						header('Location: http://' . $_SERVER['SERVER_NAME'] . '/error.html');
					}
				}else if(isset($this->session->user['level']) && $this->session->user['level'] <= 0){
					$this->session->quickerror = 'Your account is not authorized yet. Please authorize your account to proceed.';
					header('Location: http://' . $_SERVER['SERVER_NAME'] . '/');
				}else{
					$this->session->prelogintry = $_SERVER['REQUEST_URI'];
					$this->session->quickerror = 'You must be logged in to view that resource.';
					header('Location: http://' . $_SERVER['SERVER_NAME'] . '/');
				}
			}
		}
	}
	
	/**
	 * Method: getArrayValue($key:String[, $array = $_POST, $default = '']):Mixed
	 * Returns value of $array[$key] if exists, else returns defult text
	 * Example: If exists $_POST['name'] display it, otherwise display 'Enter Your Name Here'
	 *          getArrayValue('name', $_POST, 'Enter Your Name Here')
	 */
	public function getArrayValue($key, $array = null, $default = ''){
	    $array = (!is_array($array) || is_null($array)) ? $_POST : $array;
	    if(isset($array[$key])){
	        return $array[$key];
	    }
		return $default;
	}
}
?>