'use strict';

/** BSD-2-Clause license
 *
 * Copyright (c) 2018-2023 NST <www.newinfosec.ru>, sss <sss at dark-alexandr dot net>, smake <smake at ya dot ru>.
 *
 */

function RDPStart(uri, title){
	uri = wsBase
	document.querySelector('.rdp_connect_dialog').style.display = 'none';
	if (title === undefined) {
		// title = "Portal rdp session " + $('rdphost').value.trim();
		title = "Portal remote session";
	}
	if(!embedded){
		$('dvLoading').setStyles({'visibility':'visible'});
	}
	var controls = document.querySelector('#extracommands');
	rdp = new webrdp.RDP(uri, $('screen'), controls, !RIMtablet, RIMtablet, vkbd);

	rdp.addEvent('alert', function(msg) {
		popUpMessage('error', msg, 5);
		});
	rdp.addEvent('connected', function() {
			cleanPopUpDeck();
			document.title = title;
			var button = $("rdpconnect");
			button.removeEvents();
			window.removeEvent('resize', OnDesktopSize);
			button.value = 'Disconnect';
			button.addEvent('click', rdp.Disconnect.bind(rdp));
			window.addEvent("beforeunload", rdp.Disconnect.bind(rdp));
			});
	rdp.addEvent('disconnected', function() {
			showDialog(true);
			if(embedded){
				$('maindialog').addClass('invisible');
				noInstancePopUp()
			}
			var button = $("rdpconnect");
			button.removeEvents();
			button.value = 'Connect';
			button.addEvent('click', function(){RDPStart();});
			OnDesktopSize();
			window.addEvent('resize', OnDesktopSize);
			if(!embedded)
			{
				document.querySelector('.rdp_connect_dialog').style.display = 'block';
			}
			});
	rdp.addEvent('mouserelease', ResetRdpMouseFlags);
	rdp.addEvent('touch2', function() {
		ShowMouseHelper($('mousehelper').hasClass('invisible'));
	});
	rdp.addEvent('touch3', function() {
		vkbd.toggle();
	});
	rdp.addEvent('touch4', function() {
		if (confirm('Are you sure you want to disconnect?')) {
			rdp.Disconnect();
		}
	});
	showDialog(false);
	// rdp.log.loglevel = "debug";
	rdp.Run();
}

function SetRdpMouseFlags() {
	var mf = {
		'r': $('rclick').checked,
		'm': $('mclick').checked,
		'a': $('aclick').checked,
		's': $('sclick').checked,
		'c': $('cclick').checked,
	};
	rdp.SetArtificialMouseFlags(mf);
}
function ResetRdpMouseFlags() {
	$('rclick').checked = false;
	$('mclick').checked = false;
	$('aclick').checked = false;
	$('sclick').checked = false;
	$('cclick').checked = false;
	rdp.SetArtificialMouseFlags(null);
}
function ShowMouseHelper(show) {
	var mh = $('mousehelper');
	inDrag = false;
	if (show) {
		mh.setStyles({'position':'absolute','top':mhy,'left':mhx,'z-index':999});
		mh.addEvent('mousedown',DragStart);
		$('rclick').addEvent('change', SetRdpMouseFlags);
		$('mclick').addEvent('change', SetRdpMouseFlags);
		$('aclick').addEvent('change', SetRdpMouseFlags);
		$('sclick').addEvent('change', SetRdpMouseFlags);
		$('cclick').addEvent('change', SetRdpMouseFlags);
		mh.removeClass('invisible');
	} else {
		mh.removeEvents();
		mh.addClass('invisible');
		$('rclick').removeEvents();
		$('mclick').removeEvents();
		$('aclick').removeEvents();
		$('sclick').removeEvents();
		$('cclick').removeEvents();
	}
}

function OnDesktopSize() {
	 ResizeCanvas($('dtsize').value);
	 DrawLogo();
}

function DragStart(evt) {
	var mh = $('mousehelper');
	if (!mh.hasClass('invisible')) {
		inDrag = true;
		dragX = evt.page.x;
		dragY = evt.page.y;
		window.addEvent('mouseup',DragEnd);
		window.addEvent('touchmove',DragMove);
	}
}
function DragEnd(evt) {
	inDrag = false;
	var mh = $('mousehelper');
	window.removeEvent('touchmove',DragMove);
	window.removeEvent('mouseup',DragEnd);
}
function DragMove(evt) {
	if (inDrag) {
		var dx = evt.page.x - dragX;
		var dy = evt.page.y - dragY;
		dragX = evt.page.x;
		dragY = evt.page.y;
		var mh = $('mousehelper');
		if (!mh.hasClass('invisible')) {
			mhx += dx;
			mhy += dy;
			mh.setStyles({'top':mhy,'left':mhx});
		}
	}
}

function DrawLogo() {
		var logo = new Element('img', {'src': 'c_none.png'});
		logo.addEvent('load', function() {
			var screen = document.getElementById('screen');
			var scaleWCoeficient = 0.5;
			var scaleHCoeficient = 0.5;
			var iw = this.width * scaleWCoeficient;
			var ih = this.height * scaleHCoeficient;
			var scale = (screen.height - 20) / ih;
			screen.getContext('2d').drawImage(
				this, 10, 10, Math.round(iw * scale), Math.round(ih * scale)
			);
		}.bind(logo));
}

function ResizeCanvas(sz) {
	var w, h;
	if (sz == 'auto') {
		w = window.getCoordinates().width;
		h = window.getCoordinates().height;
		if (RIMtablet) {
			// Toplevel bar not removable
			h -= 31;
		}
		if (w % 2) {
			w -= 1;
		}
	} else {
		var sza = sz.split('x');
		var w = sza[0];
		var h = sza[1];
	}
	$('screen').width = w - 10;
	$('screen').height = h - 50;
	$('screen').style["margin"] = "0 auto";
}

var sendDisconnect = function() {
if (confirm('Закончить сессию ?')) {
	$('extracommands').setStyles({'visibility':'hidden'});
	rdp.Disconnect();
	window.close();
}
}

var altTabOn = false;
function altTabEvent(){
	if(altTabOn){
		altTabOn = false;
		rdp.SendKey(2);//alt+tab release
		$('alttab').removeClass('extracommandshold');
	}
	else{
		altTabOn = true;
		rdp.SendKey(1);//alt+tab
		$('alttab').addClass('extracommandshold');
	}
}

function showDialog(show) {
	if (show) {
		ShowMouseHelper(false);
		var dlg = $('maindialog');
		var x = Math.round((window.getCoordinates().width - dlg.getCoordinates().width) / 2) + 'px';
		var y = Math.round((window.getCoordinates().height - dlg.getCoordinates().height) / 2) + 'px';
		$('extracommands').setStyles(
		{
			'visibility':'hidden'
		});
		$('dvLoading').setStyles(
		{
			'visibility':'hidden'
		});
		DrawLogo();
		dlg.setStyles({
				'position': 'absolute',
				'top': y,
				'left': x,
				'z-index': 999
				}).removeClass('invisible');
	} else {
		$('maindialog').addClass('invisible');
		$('extracommands').setStyles(
		{
			'visibility':'visible'
		});
		$('ctrlaltdelete').addEvent('click', function(){ rdp.SendKey(0); });
		$('alttab').addEvent('click', altTabEvent);
		$('disconnect').addEvent('click', sendDisconnect);
	}
}

function settingsGetJSON(){
	var screen = document.getElementById('screen');
	return {
			"backend_settings": {
				"host"	 : $('rdphost').value.trim()
				,"port"	 : parseInt($('rdpport').value.trim())
				,"pcb"	: $('rdppcb').value.trim()
				,"user"	 : $('rdpuser').value.trim()
				,"password"	 : $('rdppass').value
				,"perf"	 : parseInt($('perf').value.trim())
				,"fntlm"	: parseInt($('fntlm').value.trim())
				,"nowallp": parseInt($('nowallp').checked ? '1' : '0')
				,"nowdrag": parseInt($('nowdrag').checked ? '1' : '0')
				,"nomani" : parseInt($('nomani').checked ? '1' : '0')
				,"notheme": parseInt($('notheme').checked ? '1' : '0')
				,"nonla"	: parseInt($('nonla').checked ? '1' : '0')
				,"notls"	: parseInt($('notls').checked ? '1' : '0')
				,"dtsize" : screen.width + 'x' + screen.height
			 }
			 ,"session_settings": {
				 "token" : location.search.substring(1)
				 ,"proto" : "rdp" 
			}
			 };
}