<?php

class Master {

	public $view;

	public function __construct() {
		$this->view = new View;
	}

	public function parse($f3, $params) {
                $f3->set('_title', $f3->get('title'));

                // set view if item exists
                if (in_array($params['m'], $f3->get('item'))) {
                        if (!file_exists('views/' . $params['m'] . '.htm')) {
                                // if file does not exists, create a template
                                copy('views/template.htm', 'views/' . $params['m'] . '.htm');
                        }
                        $f3->set('_module', $params['m']);
                } elseif ($params['m'] === 'login') {
			$f3->set('_module', 'login');	
		} else {
                        $f3->set('_module', 'home');
                }
                
                echo $this->view->render('template/header.php');

                echo $this->view->render('views/menu.php');

		if (!empty($f3->get('message'))) {
			echo $this->view->render('template/message.php');
		}
		
		// if we want to list the users:
		if ($f3->get('_module') === 'users') {
			$this->tabUsers($f3);
		} else if($f3->get('_module') === 'home') {
			$this->tabHome($f3);
		} else if ($f3->get('_module') === 'satellites') {
			$this->tabSatellite($f3);
		}

                echo Template::instance()->render('views/' . $f3->get('_module') . '.htm');

                echo $this->view->render('template/footer.php');

	}

	public function dologin($f3, $username, $password) {
		if (isset($f3->get('user')[$username]) && $f3->get('user')[$username] == sha1($password)) {
			$_SESSION['username'] = $username;
			$f3->set('loggedin', true);
			$f3->set('username', $username);
			$f3->reroute('@module(@m=home)');
		} else {
			$f3->set('message', 'Login invalid.');
			$f3->reroute('@module(@m=home)');
		}
	}

	public function dologout($f3) {
		$_SESSION = array();
		$f3->set('message', 'Logout successful');
		$f3->set('loggedin', false);
		$f3->set('username', 'Guest');
		$this->parse($f3, array('m' => 'login'));
	}

	private function tabUsers($f3) {
		$f3->set('result',$f3->get('DB')->exec('SELECT userid, username, organization, firstname, lastname, email, lastlogin FROM user'));
	}

	private function tabHome($f3) {
		// one command is 'sh -c' and the other command is 'grep'
		// so we need more than two commands to find the server
		if (shell_exec('ps aux | grep "org.openslx.imagemaster.App" | wc -l') > 2) {
			$f3->set('serverstatus', true);
		} else {
			$f3->set('serverstatus', false);
		}
	}

	private function tabSatellite($f3) {
		$f3->set('result', $f3->get('DB')->exec('SELECT organization, address, name, prefix, publickey FROM satellite'));
	}

}

?>