//Шаблон класса для авторизации пользователя (под проекты переделывается)
class DBMSUser
{
	constructor(){
		this.divsh=null;
		this.id=null;
		this.name='';
		this.surname='';
		this.patronymic='';
		this.temp=false;
		this.role='';
		this.m_ls=new Array(); //Listeners called OnLogin function.

		this.divsh = null;
		//Запрашиваю данные о текущем пользователе с сервера
		//this.LoadData();
	}

	applyReq(req,fn,node)
	{
		//alert(getXMLNodeSerialisation(node));
		this.showShadow(false);
		if (fn==-1)
		{
			alert(findFirstNode(node,'#cdata-section').nodeValue);
		}else
		if(fn==7)
		{
			var nCmd=findFirstNode(node, "cmd");
			if(nCmd!=null)
			{
				if(findFirstNode(nCmd,'#cdata-section').nodeValue=="1") //Logout
				{
					location.reload();
					//window.location.href = '../';
				}else if(findFirstNode(nCmd,'#cdata-section').nodeValue=="2") //Check if user not logged
				{
					if(findNode(node,'#cdata-section').nodeValue=="0") //if not logged
					{
						this.showLoginForm();	
					}else
					{
						this.name=getCdataValue(findNode(node,'name'));
						this.surname=getCdataValue(findNode(node,'surname'));
						this.patronymic=getCdataValue(findNode(node,'patronymic'));
	
						if (typeof this.onUpdateName !== 'undefined') {
							this.onUpdateName(this.name,this.surname,this.patronymic);
						}
						//configGUIbyAccessLevel();
						//var shadow=document.getElementById("shadow");
						//if(shadow.parentNode!=null) shadow.parentNode.removeChild(shadow);
						
						//Информируем слушатеелй о логине
						for(i=0;i<this.m_ls.length;i++){
							if(this.m_ls[i]!==null){
								this.m_ls[i].OnLogin(true); //0 - authorized, 1 - an incorrect username or password, 2 - left.
							}
						}
					}
				}else if(findFirstNode(nCmd,'#cdata-section').nodeValue=="3") //Login
				{							
					if(findNode(node,'#cdata-section').nodeValue=="0") //if not logged
					{
						alert2(trt('Attention'),trt('Invalid_username_and_or_password'));	
					}else
					{
						//location.reload();
						//Информируем слушатеелй о логине
						for(i=0;i<this.m_ls.length;i++){
							if(this.m_ls[i]!==null){
								this.m_ls[i].OnLogin(true); //0 - authorized, 1 - an incorrect username or password, 2 - left.
							}
						}
					}
				}else if(findFirstNode(nCmd,'#cdata-section').nodeValue=="4") //Register
				{
					//if(findNode(node,'#cdata-section').nodeValue=="1") //if register
					//{
					//	alert2(trt('Attention'),trt('New_user_is_registered')+'\n'+trt('The_password_has_been_sent_to_you_by_Email'),function(){ location.reload(); });
					//}
				}
			}
		}

	};
	//Display login and registration form
	showLoginForm()
	{
		if(this.win==null || this.win.closed)
		{
			this.win=new TWin(true);
			this.win.disableClosing=true;
			this.win.BuildGUI(10,10);
			deleteHTML('TWin_CL_'+this.win.uid); //Удаляю кнопку закрыть
			this.win.setCaption(trt('Authorization'));

			this.win.setSize("350px","200px");

			var str='<div style="width: 100%; height: 100%; padding: 3px; text-align: left;">\n\
				<table cellpadding="0" cellspacing="0" style="width: 100%; height: 100%;">\n\
					<tbody>\n\
						<tr><td>\n\
								<table style="width: 100%; height: 100%;">\n\
									<tr>\n\
										<td style="padding: 2px; width: 30%; white-space: nowrap"><b>'+trt('Login')+' (E-mail):</b></td>\n\
										<td style="padding: 2px;"><input type="text" maxlength="50" style="width: 100%; padding: 2px; display: inline;" id="tcLogin'+this.uid+'" name="login"><br></td>\n\
									</tr>\n\
									<tr>\n\
										<td style="padding: 2px;"><b>Password:</b></td>\n\
										<td style="padding: 2px;"><input type="password" maxlength="33" style="width: 100%; padding: 2px; display: inline;" id="tcPassword'+this.uid+'" name="password"><br></td>\n\
									</tr>\n\
									<tr>\n\
										<td style="padding: 2px;" colspan="2"><table style="width: 100%;"><tr><td><label for="save0" style="white-space: nowrap;"><input id="save_'+this.uid+'" type="checkbox" style="display: inline;" checked/>&nbsp;Remember&nbsp;(<a href="#" onclick="g_user.showRestoreForm();">Forgot your password?</a>)</label></td></tr></table></td>\n\
									</tr>\n\
									<tr><td colspan="2" style="text-align: right;"><input class="button-secondary" id="TLogin_E'+this.uid+'" type="button" style="display: inline;" value="'+trt('Log_in')+'"></td></tr>\n\
								</table>\n\
							</td></tr>\n\
					</tbody>\n\
				</table>\n\
			</div>';

			this.win.setContent(str);

			//Center the window and display the shadow
			//if(this.win.tbl.offsetHeight>this.win.div.offsetHeight) this.win.div.style.height=this.win.tbl.offsetHeight+"px";
			//if(this.win.tbl.offsetWidth>this.win.div.offsetWidth) this.win.div.style.width=this.win.tbl.offsetWidth+"px";
			this.win.setCenter();
			this.win.shadow=true;
			this.win.hide(false);

			//Нажатие на кнопку авторизоваться
			var obj=null;               
			obj=document.getElementById('TLogin_E'+this.uid);
			if(obj!==null)
			{
				obj.onclick=()=>
					{
						var xs='<?xml version="1.0" encoding="utf-8"?>\
								<metadata fn="7">\
										<cmd><![CDATA[3]]></cmd>\n\
										<login><![CDATA['+document.getElementById('tcLogin'+this.uid).value+']]></login>\
										<password><![CDATA['+document.getElementById('tcPassword'+this.uid).value+']]></password>\
								</metadata>';

						var request=new TRequest(this);
						if(request.callServer(ScriptName,xs))
						{
								this.win.showProgressBar();
						}
					};
			}
		}
	};
	//logout current user
	Logout()
	{
		xs='<?xml version="1.0" encoding="utf-8"?><metadata fn="7"><cmd><![CDATA[1]]></cmd></metadata>';
		var request=new TRequest(this);
		if(request.callServer(ScriptName,xs))
		{
			this.showShadow();
		}
	};
	
	showLock(visible) {
		if(this.divsh==null) {
			this.divsh = document.createElement('div'); //Shadow
			this.divsh.style.cssText = "display: none; position: fixed; z-index: 1000; top:0; left:0; height: 100%; width: 100%; background: rgba(0,0,0,0.3);";
			document.body.append(this.divsh);
		}
		if(!visible)
			this.divsh.style.display='none';
		else
			this.divsh.style.display='block';
	}

	//Checking the session without its extension, if it is completed, we display the authorization window.
	checkSession()
	{
		$.ajax({
			url: '../session',
			data: "{}",
			type: "POST",
			dataType: "json",
			success: (data,status) => {
				if(status=='success')
				{
					if(data.result=='ERROR'){
						this.showLoginForm();
					}else
					if(data.result=='OK'){
						this.id=data.user_id;
					}
					this.showLock(false);
				}else
				{
					this.showLock(true);
				}
			},
			error: (jqXHR, exception)=>
			{
				this.showLock(true);
			}
		});
		setTimeout(()=>this.checkSession(), 10000);
	};

	showShadow(visible)
	{
            if(visible)
            {
                this.divsh=document.createElement('div'); //Тень для модального окна
                this.divsh.style.cssText="display: block; position: fixed; z-index:9999; top:0; left:0; height: 100%; width: 100%; background: rgba(0,0,0,0.3);";
                document.body.appendChild( this.divsh );
            }else
            {
                deleteHTML(this.divsh);
            }
	};
	
	//Функция запрашивает информацию о текущем пользователе с сервера
	LoadData()
	{
		var r = new TRequest(this);
		var xs='<?xml version="1.0" encoding="utf-8"?><metadata fn="7"><cmd><![CDATA[2]]></cmd></metadata>';
		if(r.callServer(ScriptName,xs))
		{
			this.showShadow(true);
		}
	};
	//Check whether the already authorized (+ attempt to log in through "hash").
	isLogined()
	{
		var xs='<?xml version="1.0" encoding="utf-8"?><metadata fn="7"><cmd><![CDATA[2]]></cmd></metadata>';
		var request=new TRequest(this);
		if(request.callServer(ScriptName,xs))
		{
			this.showShadow(true);

			alert(ScriptName+" = "+xs);
			
			//m_winPP.showProgressBar();
		}
	};
	
	addListener(l)
	{	if(l.OnLogin==null) alert('Object does not have the function "OnLogin()"!');
		this.m_ls[this.m_ls.length]=l;
	};

	remListener(l){
		for(let i=0;i<this.m_ls.length;i++){
			if(this.m_ls[i]==l)
				this.m_ls[i]=null;
		}
	};

	//Display password recovery form
	showRestoreForm()
	{
		var win=new TWin(true);
		win.BuildGUI(10,10);
		win.setCaption(trt("Password_recovery"));

		let str='<div style="width: 100%; height: 100%; padding: 4px; text-align: left;">\n\
					<table cellpadding="0" cellspacing="0" style="width: 100%; height: 100%; padding: 0px;">\n\
						<tr>\n\
							<td style="padding: 2px; white-space: nowrap"><b>'+trt('Login')+' (E-mail)</b></td>\n\
							<td style="padding: 2px;"><input type="text" maxlength="40" style="width: 100%; display: inline;" id="'+win.uid+'_email" name="login">\n\
								<table id="'+win.uid+'_phone" style="width: 100%; display: none;" cellpadding="0" cellspacing="0"><tr><td style="white-space: nowrap;"><b>+7 ( </b><input type="text" maxlength="3" onkeydown="this.value = this.value.replace(/[^0-9]/g, \'\')" onkeyup="this.value = this.value.replace(/[^0-9]/g, \'\')" style="width: 35px; display: inline;" id="'+win.uid+'_phone0" value=""><b> ) </b></td><td style="width: 90%;"><input type="text" onkeydown="this.value = this.value.replace(/[^0-9]/g, \'\')" onkeyup="this.value = this.value.replace(/[^0-9]/g, \'\')" maxlength="7" style="width: 100%;display: inline;" id="'+win.uid+'_phone1" value=""></td></tr></table><br></td>\n\
						</tr>\n\
						<tr><td colspan="2" style="text-align: right; padding: 2px;"><input class="button-secondary" id="'+win.uid+'_restore" type="button" style="display: inline;" value="'+trt('Restore')+'"></td></tr>\n\
					</table>\n\
				</td></tr>\n\
			</div>';
		win.setContent(str);

		//Центрируем окно и отображаем тень
		if(win.tbl.offsetHeight>win.div.offsetHeight) win.div.style.height=win.tbl.offsetHeight+"px";
		if(win.tbl.offsetWidth>win.div.offsetWidth) win.div.style.width=win.tbl.offsetWidth+"px";
		win.setCenter();
		win.shadow=true;
		win.hide(false);

		//Click on restore button
		var obj=null;
		obj=document.getElementById(win.uid+'_restore');
		if(obj!=null)
		{
			obj.onclick=function(win)
			{	return function()
			{
				win.showProgressBar();

				var em=document.getElementById(win.uid+'_email').value;

				if(em==''){ document.getElementById(win.uid+'_email').select(); alert(trt('Not_filled_Email_address')); win.hideProgressBar(); return; }
				if(! isEmail(em)){ document.getElementById(win.uid+'_email').select(); alert(trt('Please_enter_a_valid_email_address'));  win.hideProgressBar(); return; }

				//Send AJAX reqwest to server
				var xml='<?xml version="1.0" encoding="utf-8"?>\
				<metadata fn="7">\
					<cmd><![CDATA[0]]></cmd>\
					<login><![CDATA['+em+']]></login>\
					<captcha><![CDATA[]]></captcha>\
				</metadata>';

				//Anonymous object
				obj=new function(win)
				{
					this.processReqChange = function(xmlHttpRequest, url, xmlString)
					{
						if(typeof(xmlHttpRequest.status)=='undefined' || xmlHttpRequest.status == 200)
						{
							if(typeof(xmlHttpRequest.responseXML)=='undefined' && xmlHttpRequest.contentType.match(/\/xml/)) //For IE XDomainRequest
								xmlHttpRequest.responseXML=CreateXMLDOC(xmlHttpRequest.responseText);

							//загрузился xml документ начинаем его разбирать (по id функции в документе)
							let xmldoc = xmlHttpRequest.responseXML
							if(xmldoc==null) {
								alert2(trt('Alert'), trt('Wrong_XML_document') + "!\n" + xmlHttpRequest.responseText);
							}else {
								var node = xmldoc.documentElement;
								if ((node == null) || (node.getAttribute("fn") == null)) alert(trt('Error') + "\n " + trt("No_data") + "!\n" + xmlHttpRequest.responseText);
								else {
									//alert("Принятый браузером XML=\n"+getXMLNodeSerialisation(node));
									var fn = node.getAttribute("fn");
									if (fn == -1) {
										alert(findFirstNode(node, '#cdata-section').nodeValue);
										this.win.hideProgressBar();
									} else if (fn == 7) {
										alert(findFirstNode(node, '#cdata-section').nodeValue);
										this.win.Close();
									}
								}
							}
						}else
						{
							if(confirm(trt('Failed_to_get_data')+"\n URL: "+url+"\n"+xmlHttpRequest.statusText+"\nRedo the request?"))
							{
								var call=new myXMLHttpRequest(this);
								call.callServer(url,xmlString);
							}
						}
						return null;
					};
					this.win=win; //For close after showing message.
				}
				(win);

				var call=new myXMLHttpRequest(obj);
				call.callServer(ScriptName,xml);

			};
			}(win);
		}
	}

}