<%--
 ~
 ~ Copyright (c) 2022, WSO2 Inc. (http://www.wso2.com). All Rights Reserved.
 ~
 ~ This software is the property of WSO2 Inc. and its suppliers, if any.
 ~ Dissemination of any information or reproduction of any material contained
 ~ herein in any form is strictly forbidden, unless permitted by WSO2 expressly.
 ~ You may not alter or remove any copyright or other notice from copies of this content."
 ~
--%>

<%@ page import="org.owasp.encoder.Encode" %>
<%@ page import="org.wso2.carbon.identity.application.authentication.endpoint.util.Constants" %>
<%@ page import="org.wso2.carbon.identity.mgt.endpoint.util.IdentityManagementEndpointConstants" %>
<%@ page import="org.wso2.carbon.identity.mgt.endpoint.util.IdentityManagementEndpointUtil" %>
<%@ page import="java.io.File" %>
<%@ page import="java.util.Map" %>
<%@ page import="java.util.ArrayList" %>
<%@ page import="java.util.Arrays" %>
<%@ page import="java.util.List" %>
<%@ page import="org.wso2.carbon.identity.application.authentication.endpoint.util.AuthenticationEndpointUtil" %>
<%@ page import="com.wso2.identity.asgardeo.auth.smsotp.util.AuthenticatorUtils" %>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<%@ taglib prefix="layout" uri="org.wso2.identity.apps.taglibs.layout.controller" %>

<%@ include file="includes/localize.jsp" %>
<%@ include file="./app-insights.jsp" %>
<%@ include file="includes/init-url.jsp" %>

<%-- Branding Preferences --%>
<jsp:directive.include file="extensions/branding-preferences.jsp"/>

<%
    request.getSession().invalidate();
    if (StringUtils.isBlank(tenantDomain)) {
        tenantDomain = (String) session.getAttribute(IdentityManagementEndpointConstants.TENANT_DOMAIN);
    }
    int otpLength = Integer.parseInt(AuthenticatorUtils.getSmsAuthenticatorConfig("SmsOTP.OTPLength", tenantDomain));

    String queryString = request.getQueryString();
    Map<String, String> idpAuthenticatorMapping = null;
    if (request.getAttribute(Constants.IDP_AUTHENTICATOR_MAP) != null) {
        idpAuthenticatorMapping = (Map<String, String>) request.getAttribute(Constants.IDP_AUTHENTICATOR_MAP);
    }

    String errorMessage = AuthenticationEndpointUtil.i18n(resourceBundle, "error.retry");
    String authenticationFailed = "false";

    if (Boolean.parseBoolean(request.getParameter(Constants.AUTH_FAILURE))) {
        authenticationFailed = "true";

        if (request.getParameter(Constants.AUTH_FAILURE_MSG) != null) {
            errorMessage = request.getParameter(Constants.AUTH_FAILURE_MSG);

            if (errorMessage.equalsIgnoreCase("authentication.fail.message")) {
                errorMessage = AuthenticationEndpointUtil.i18n(resourceBundle, "error.retry.code.invalid");
            }
        }
    }
%>

<html>
    <head>
        <%-- header --%>
        <%
            File headerFile = new File(getServletContext().getRealPath("extensions/header.jsp"));
            if (headerFile.exists()) {
        %>
        <jsp:include page="extensions/header.jsp"/>
        <% } else { %>
        <jsp:include page="includes/header.jsp"/>
        <% } %>

        <!--[if lt IE 9]>
        <script src="js/html5shiv.min.js"></script>
        <script src="js/respond.min.js"></script>
        <![endif]-->
    </head>

    <body class="login-portal layout sms-otp-portal-layout">

        <% if (new File(getServletContext().getRealPath("extensions/timeout.jsp")).exists()) { %>
            <jsp:include page="extensions/timeout.jsp"/>
        <% } else { %>
            <jsp:include page="util/timeout.jsp"/>
        <% } %>

        <layout:main layoutName="<%= layout %>" layoutFileRelativePath="<%= layoutFileRelativePath %>" data="<%= layoutData %>" >
            <layout:component componentName="ProductHeader" >
                <%-- product-title --%>
                <%
                    File productTitleFile = new File(getServletContext().getRealPath("extensions/product-title.jsp"));
                    if (productTitleFile.exists()) {
                %>
                <jsp:include page="extensions/product-title.jsp"/>
                <% } else { %>
                <jsp:include page="includes/product-title.jsp"/>
                <% } %>
            </layout:component>
            <layout:component componentName="MainSection" >
              <div class="ui segment">
                      <%-- page content --%>
                      <h2><%=AuthenticationEndpointUtil.i18n(resourceBundle, "otp.verification")%>
                      </h2>
                      <div class="ui divider hidden"></div>
                      <%
                          if ("true".equals(authenticationFailed)) {
                      %>
                      <div class="ui negative message" id="failed-msg"><%=Encode.forHtmlContent(errorMessage)%>
                      </div>
                      <div class="ui divider hidden"></div>
                      <% } %>
                      <div id="alertDiv"></div>
                      <div class="segment-form">
                          <form class="ui large form" id="codeForm" name="codeForm" action="<%=commonauthURL%>" method="POST">
                              <%
                                  String loginFailed = request.getParameter("authFailure");
                                  if (loginFailed != null && "true".equals(loginFailed)) {
                                      String authFailureMsg = request.getParameter("authFailureMsg");
                                      if (authFailureMsg != null && "login.fail.message".equals(authFailureMsg)) {
                              %>
                              <div class="ui negative message"><%=AuthenticationEndpointUtil.i18n(resourceBundle, "error.retry")%>
                              </div>
                              <div class="ui divider hidden"></div>
                              <% }
                              } %>
                              <% if (request.getParameter("screenValue") != null) { %>
                              <div class="field">
                                  <label for="password"><%=AuthenticationEndpointUtil.i18n(resourceBundle, "enter.code.sent.smsotp")%>
                                      (<%=Encode.forHtmlContent(request.getParameter("screenValue"))%>)
                                  </label>

                                  <% if (otpLength <= 6) { %>
                                  <div class="equal width fields">
                                      <input hidden type="text"  id="OTPCode" name="OTPCode" class="form-control" placeholder="<%=AuthenticationEndpointUtil.i18n(resourceBundle, "verification.code")%>">
                                      <%  for (int index = 1; index <= otpLength;){
                                          String previousStringIndex = null;
                                          if (index != 1) {
                                              previousStringIndex = "pincode-"+ (index - 1);
                                          }
                                          String currentStringIndex = null;
                                          currentStringIndex = "pincode-"+ index;
                                          index++;
                                          String nextStringIndex = null;
                                          if (index != (otpLength+1)) {
                                              nextStringIndex = "pincode-"+ index;
                                          }
                                      %>
                                          <div class="field mt-5">
                                              <input class="text-center p-3" id=<%= currentStringIndex %> name=<%= currentStringIndex %>
                                                  onkeyup="movetoNext(this, '<%= nextStringIndex %>', '<%= previousStringIndex %>')"
                                                  tabindex="1" placeholder="·" autofocus maxlength="1">
                                          </div>
                                      <%}%>
                                  </div>
                                  <% } else { %>
                                      <div class="ui fluid icon input addon-wrapper">
                                      <input type="password" id='OTPCode' name="OTPCode" c size='30'/>
                                      <i id="password-eye" class="eye icon right-align password-toggle" onclick="showOTPCode()"></i>
                                  </div>
                                  <% } %>


                                  <% } else { %>
                                      <div class="field">
                                          <label for="password"><%=AuthenticationEndpointUtil.i18n(resourceBundle, "enter.code.sent.smsotp")%>
                                              :</label>
                                          <div class="ui fluid icon input addon-wrapper">
                                              <input type="password" id='OTPCode' name="OTPCode" size='30'/>
                                              <i id="password-eye" class="eye icon right-align password-toggle" onclick="showOTPCode()"></i>
                                          </div>
                                  <% } %>
                                  </div>
                                  <input type="hidden" name="sessionDataKey"
                                      value='<%=Encode.forHtmlAttribute(request.getParameter("sessionDataKey"))%>'/>
                                  <input id="multiOptionURI" type="hidden" name="multiOptionURI"
                                     value='<%=Encode.forHtmlAttribute(request.getParameter("multiOptionURI"))%>' />
                                  <input type='hidden' name='resendCode' id='resendCode' value='false'/>

                                  <div class="ui divider hidden"></div>

                                  <% if(request.getParameter("multiOptionURI") != null &&
                                          request.getParameter("multiOptionURI").contains("backup-code-authenticator")) { %>
                                      <div class="social-login blurring social-dimmer text-left">
                                          <div class="field text-left">
                                              <label class="h6 ui header mb-1"><%=AuthenticationEndpointUtil.i18n(resourceBundle, "cannot.access.smsotp")%></label>

                                              <a
                                                  onclick="window.location.href='<%=commonauthURL%>?idp=LOCAL&authenticator=backup-code-authenticator&sessionDataKey=<%=Encode.forUriComponent(request.getParameter("sessionDataKey"))%>&multiOptionURI=<%=Encode.forUriComponent(request.getParameter("multiOptionURI"))%>';"
                                                  target="_blank"
                                                  class="clickable-link text-left ui form"
                                                  rel="noopener noreferrer"
                                                  data-testid="login-page-backup-code-link"
                                                  style="cursor: pointer;display:block"
                                              >
                                                  <%=AuthenticationEndpointUtil.i18n(resourceBundle, "use.backup.code")%>
                                              </a>
                                          </div>
                                      </div>
                                  <% }%>

                                  <div class="buttons">
                                      <% if (otpLength <= 6) { %>
                                      <div>
                                          <input type="button" id="subButton" onclick="sub(); return false;"
                                          value="<%=AuthenticationEndpointUtil.i18n(resourceBundle, "authenticate")%>"
                                          class="ui primary fluid large button" />
                                      </div>
                                      <% } else { %>
                                      <input type="button" name="authenticate" id="authenticate"
                                          value="<%=AuthenticationEndpointUtil.i18n(resourceBundle, "authenticate")%>"
                                          class="ui primary fluid large button"/>
                                      <% } %>
                                          <button type="button" class="ui fluid large button secondary mt-2" id="resend">
                                              <%=AuthenticationEndpointUtil.i18n(resourceBundle, "resend.code")%>
                                          </button>
                                          <%
                                              String multiOptionURI = request.getParameter("multiOptionURI");
                                              if (isMultiAuthAvailable(multiOptionURI)) {
                                          %>
                                          <a class="ui fluid large button secondary mt-2" id="goBackLink"
                                              href='<%=Encode.forHtmlAttribute(multiOptionURI)%>'>
                                                  <%=AuthenticationEndpointUtil.i18n(resourceBundle, "choose.other.option")%>
                                          </a>
                                          <% } %>
                                  </div>
                          </form>
                      </div>
                  </div>
            </layout:component>
            <layout:component componentName="ProductFooter" >
                <%-- product-footer --%>
                <%
                    File productFooterFile = new File(getServletContext().getRealPath("extensions/product-footer.jsp"));
                    if (productFooterFile.exists()) {
                %>
                <jsp:include page="extensions/product-footer.jsp"/>
                <% } else { %>
                <jsp:include page="includes/product-footer.jsp"/>
                <% } %>
            </layout:component>
        </layout:main>

        <%-- footer --%>
        <%
            File footerFile = new File(getServletContext().getRealPath("extensions/footer.jsp"));
            if (footerFile.exists()) {
        %>
        <jsp:include page="extensions/footer.jsp"/>
        <% } else { %>
        <jsp:include page="includes/footer.jsp"/>
        <% } %>

        <script type="text/javascript">
            var insightsTenantIdentifier = "<%=userTenant%>";
            var otpLength = "<%=otpLength%>";

            function movetoNext(current, nextFieldID, previousID) {
                var key = event.keyCode || event.charCode;
                if(key == 8 || key == 46) {
                    if (previousID != null && previousID != 'null') {
                        document.getElementById(previousID).focus();
                    }
                } else {
                    if (nextFieldID != null && nextFieldID != 'null' && current.value.length >= current.maxLength) {
                        document.getElementById(nextFieldID).focus();
                    }
                }
            }

            function sub() {

                var token = null;
                var hasNullDigit = false;

                for(var i = 1; i <= otpLength; i++){
                    var currentDigit = document.getElementById("pincode-"+i).value;
                    if(!currentDigit || currentDigit == null || currentDigit == 'null') {
                        hasNullDigit = true;
                        break;
                    }
                    if(i === 1) {
                        token = currentDigit;
                    } else {
                        token += currentDigit;
                    }
                }

                document.getElementById('OTPCode').value = token;

                if (!hasNullDigit) {
                    AppInsights.getInstance().trackEvent("authentication-portal-sms-otp-click-continue", {
                        "tenant": insightsTenantIdentifier != "null" ? insightsTenantIdentifier : ""
                    });
                    document.getElementById("codeForm").submit();
                }

            }

            // Handle paste events
    	    function handlePaste(e) {
     	        var clipboardData, value;

                // Stop data get being pasted into element
                e.stopPropagation();
                e.preventDefault();

                // Get pasted data via clipboard API
                clipboardData = e.clipboardData || window.clipboardData;
                value = clipboardData.getData('Text');
                const reg = new RegExp(/^\d+$/);
                if (reg.test(value)) {
                    for (n = 0; n < 6; ++n) {
                        $("#pincode-" + (n+1)).val(value[n]);
                        $("#pincode-" + (n+1)).focus();
                    }
                }
            }

           document.getElementById('pincode-1') ? document.getElementById('pincode-1').addEventListener('paste', handlePaste) : null;

            $(document).ready(function () {
                $('#authenticate').click(function () {
                    var code = document.getElementById("OTPCode").value;
                    if (code == "") {
                        document.getElementById('alertDiv').innerHTML
                            = '<div id="error-msg" class="ui negative message"><%=AuthenticationEndpointUtil.i18n(resourceBundle, "error.enter.code")%></div>'
                            +'<div class="ui divider hidden"></div>';
                    } else {
                        if ($('#codeForm').data("submitted") === true) {
                            console.warn("Prevented a possible double submit event");
                        } else {
                            AppInsights.getInstance().trackEvent("authentication-portal-sms-otp-click-continue", {
                                "tenant": insightsTenantIdentifier !== "null" ? insightsTenantIdentifier : ""
                            });
                            $('#codeForm').data("submitted", true);
                            $('#codeForm').submit();
                        }
                    }
                });
            });

            $(document).ready(function () {
                $('#resend').click(function () {
                    document.getElementById("resendCode").value = "true";
                    $('#codeForm').submit();
                });
            });

            // Show OTP code function.
            function showOTPCode() {
                var otpField = $('#OTPCode');

                if (otpField.attr("type") === 'text') {
                    otpField.attr("type", "password");
                    document.getElementById("password-eye").classList.remove("slash");
                } else {
                    otpField.attr("type", "text");
                    document.getElementById("password-eye").classList.add("slash");
                }
            }

            $(document).ready(handleWaitBeforeResendOTP);

            function handleWaitBeforeResendOTP() {
                // value should be less than 3600
                const WAIT_TIME_SECONDS = 60;

                const resendButton = document.getElementById("resend");
                resendButton.disabled = true;
                const resendButtonText = resendButton.innerHTML;
                // Update the button text initially to avoid waiting until the first tick to update.
                resendButton.innerHTML = Math.floor(WAIT_TIME_SECONDS / 60).toString().padStart(2, '0') + " : " + (WAIT_TIME_SECONDS % 60).toString().padStart(2, '0');

                const countdown = new Countdown(
                    Countdown.seconds(WAIT_TIME_SECONDS),
                    () => {
                        resendButton.innerHTML = resendButtonText;
                        resendButton.disabled = false;
                    },
                    (time) => {
                        resendButton.innerHTML = time.minutes.toString().padStart(2, '0') + " : " + time.seconds.toString().padStart(2, '0');
                    },
                    "SMS_OTP_TIMER"
                ).start();
            }
        </script>

        <%!
            private boolean isMultiAuthAvailable(String multiOptionURI) {
                boolean isMultiAuthAvailable = true;
                if (multiOptionURI == null || multiOptionURI.equals("null")) {
                    isMultiAuthAvailable = false;
                } else {
                    int authenticatorIndex = multiOptionURI.indexOf("authenticators=");
                    if (authenticatorIndex == -1) {
                        isMultiAuthAvailable = false;
                    } else {
                        String authenticators = multiOptionURI.substring(authenticatorIndex + 15);
                        int authLastIndex = authenticators.indexOf("&") != -1 ? authenticators.indexOf("&") : authenticators.length();
                        authenticators = authenticators.substring(0, authLastIndex);
                        List<String> authList = new ArrayList<>(Arrays.asList(authenticators.split("%3B")));
                        if (authList.size() < 2) {
                            isMultiAuthAvailable = false;
                        }
                        else if (authList.size() == 2 && authList.contains("backup-code-authenticator%3ALOCAL")) {
                            isMultiAuthAvailable = false;
                        }
                    }
                }
                return isMultiAuthAvailable;
            }
        %>
    </body>
</html>
