<?php
require_once 'gui/model/CommonData.php';
require_once 'gui/model/interface/AlarmManagementIf.php';
require_once 'GenericAdmin/gui/view/DetailView.php';
require_once 'GenericAdmin/gui/model/GenadInstance.php';
require_once 'GenericAdmin/gui/view/ListView.php';
require_once 'GenericAdmin/gui/model/GenadInstanceList.php';
require_once 'GenericAdmin/gui/control/GenadControl.php';

class Control {

	static function doIt() {
		// check page
		$redirect_url = $_SERVER["REDIRECT_URL"];
		$page = preg_replace("/.php$/", "", $redirect_url);
		$page = preg_replace("!^.*/!", "", $page);

		// read event
		if (array_key_exists("event", $_GET))
			$event = $_GET["event"];
		else 
			$event = "";
		
		// process
		switch ($page) {
			// where am I?
			case "NavBar":
				Control::processNavBar($event);
				break;
			
			case "ViewStart":
				Control::processViewStart($event);
				break;
								
			case "ViewMonitor":
				Control::processViewMonitor($event);
				break;
				
			case "ListView":
			case "RelatedListView":
			case "Admin":
			case "DetailView":
				$control = new GenadControl();
				$control->doIt();
				break;

			case "InstanceView":
				Control::processInstance($event);
				break;

			case "UISettings":
				Control::processUISettings($event);
				break;			
		
			default:
				// call List-View
				require ("gui/view/ViewStart.php");
				break;
		}
	}

	static function processNavBar($event) {
		
		switch($event) {
			// what did I do?
			case "Monitor":
				require("gui/view/ViewStart.php");
				break;
			case "Admin":
				$view = new ListView();
				$view->viewSelection();
				break;
			case "ShowLog":
				require("gui/view/showlog.php");
				break;
			case "UISettings":
			    require("gui/view/UISettings.php");
			    break;
			default:
			    throw new RuntimeException("Unknown NavBar event: ".$event);
		}
	}
	
	static function processViewStart($event) {
		switch ($event) {
			case "Details":
			    if (!isset($_GET["ID"])) {
			        header("location:ViewStart.php");
			        exit;
			    }
			    CommonData::getInstance()->setCurrentMonitor($_GET["ID"]);
				require 'gui/view/ViewMonitor.php';
				break;
			default:
				require 'gui/view/ViewStart.php';
				break;
		}
	}
	
	
	static function processViewMonitor($event) {
	
		// monitor functions depend always on the id of the monitor
		$id = $_GET["ID"];
		
		switch ($event) {
		 case "InstSelect":
			CommonData::getInstance()->setCurrentMonitor($id);
			require 'gui/view/ViewMonitor.php';
		 				/*
			$id = $_GET["ID"];
			header("Location:ViewStart.php?event=Details&ID=$id");
			exit(); */
			break;
		case "Confirm":
			AlarmManagementIf::confirmAlarmBalance($id);
			// redirect to ViewMonitor.php
			// this prevents continuous confirms when pressing the reload button
			// I don't know how 'dirty' the code is, as the manual states that
			// a 'http://' has to follow 'Location:' It seems to work properly though.
			header("Location:ViewMonitor.php?ID=$id");
			exit();
			break;		
		 default:
		 	CommonData::getInstance()->setCurrentMonitor($id);
		 	require 'gui/view/ViewMonitor.php';
		 	break;
		}
	}
	
	static function processInstance($event) {	 	
		$detailView = new DetailView();
		$class = new GenadClass("Alarm Balance Monitor");
		$detailView->view($class);
		
	}
	
	static function processUISettings($event) {

	}
}