{{!
    This file is part of Moodle - http://moodle.org/

    Moodle is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Moodle is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
}}
{{!
    @template theme_degrade/core/theme_login_form

    Moodle template for the login page.

    Context variables required for this template:
    * canloginasguest - Is guest login allowed?,
    * canloginbyemail - Is login by email allowed?,
    * cansignup - Signup allowed?,
    * showloginform - Hide the standard login form if it not necessary (only OAuth2 for example)
    * cookieshelpicon - cookies help icon details
    * error - Any errors in the form?,
    * info - Info notification to display,
    * forgotpasswordurl - Forgot password url,
    * hasidentityproviders - Flag, set to true to hide identity providers,
    * hasinstructions - Flag, set to true to show instructions,
    * identityproviders - List of identiy providers,
    * instructions - Instructions,
    * instructionsformat - Format of instructions,
    * loginurl - Login url,
    * signupurl - Signup url,
    * logourl - Flag, logo url,
    * sitename - Name of site.,
    * logintoken - Random token to protect login request.,
    * maintenance - Maintenance message

    Example context (json):
    {
        "autofocusform": false,
        "canloginasguest": "1",
        "canloginbyemail": false,
        "cansignup": true,
        "showloginform": true,
        "error": "",
        "info": "",
        "forgotpasswordurl": "http://localhost/stable_master/login/forgot_password.php",
        "hasidentityproviders": false,
        "hasinstructions": true,
        "identityproviders": [],
        "instructions": "For full access to this site, you first need to create an account.",
        "instructionsformat": "1",
        "loginurl": "http://localhost/stable_master/login/index.php",
        "signupurl": "http://localhost/stable_master/login/signup.php",
        "logourl": false,
        "sitename": "Beer & Chips",
        "logintoken": "randomstring",
        "maintenance": "For full access to this site, you need to login in as an admin."
    }
}}

<div class="loginform">
    {{#logourl}}
        <div id="loginlogo" class="login-logo">
            <img id="logoimage" src="{{logourl}}" class="img-fluid" alt="{{sitename}}"/>
            <h1 class="login-heading sr-only">{{#str}} loginto, core, {{sitename}} {{/str}}</h1>
        </div>
    {{/logourl}}
    {{^logourl}}
        <h1 class="login-heading mb-4">{{#str}} loginto, core, {{sitename}} {{/str}}</h1>
    {{/logourl}}
    {{#maintenance}}
        <div class="alert alert-danger login-maintenance">
            {{{maintenance}}}
        </div>
    {{/maintenance}}
    {{#error}}
        <a href="#" id="loginerrormessage" class="sr-only">{{error}}</a>
        <div class="alert alert-danger" role="alert">{{error}}</div>
    {{/error}}
    {{#info}}
        <a href="#" id="logininfomessage" class="sr-only">{{info}}</a>
        <div class="alert alert-info" role="alert">{{info}}</div>
    {{/info}}
    {{#cansignup}}
        <a href="{{signupurl}}" class="sr-only">{{#str}} tocreatenewaccount {{/str}}</a>
    {{/cansignup}}
    {{#showloginform}}
        <form class="login-form" action="{{loginurl}}" method="post" id="login">
            <input id="anchor" type="hidden" name="anchor" value="">
            <script>document.getElementById('anchor').value = location.hash;</script>
            <input type="hidden" name="logintoken" value="{{logintoken}}">
            <div class="login-form-username mb-3">
                <label for="username" class="sr-only">
                    {{^canloginbyemail}}
                        {{#str}} username {{/str}}
                    {{/canloginbyemail}}
                    {{#canloginbyemail}}
                        {{#str}} usernameemail {{/str}}
                    {{/canloginbyemail}}
                </label>
                <input type="text" name="username" id="username"
                       class="form-control form-control-lg"
                       value="{{username}}"
                    {{^canloginbyemail}}
                       placeholder="{{#cleanstr}}username{{/cleanstr}}"
                    {{/canloginbyemail}}
                    {{#canloginbyemail}}
                       placeholder="{{#cleanstr}}usernameemail{{/cleanstr}}"
                    {{/canloginbyemail}}
                       autocomplete="username">
            </div>
            <div class="login-form-password mb-3">
                <label for="password" class="sr-only">{{#str}} password {{/str}}</label>
                <div class="password-wrapper">
                    <input type="password" name="password" id="password" value=""
                           class="form-control form-control-lg"
                           placeholder="{{#cleanstr}}password{{/cleanstr}}"
                           autocomplete="current-password">
                    <button type="button"
                            id="togglePassword"
                            class="toggle-password"
                            title="{{#str}} passwordunmaskrevealhint, form {{/str}}"
                            aria-pressed="false">
                        <i class="fa fa-eye" aria-hidden="true"></i>
                    </button>
                </div>
                <script>
                    (function () {
                        const toggle = document.getElementById("togglePassword");
                        toggle.addEventListener("click", function () {
                            const input = document.getElementById("password");
                            const isPassword = input.getAttribute("type") === "password";
                            input.setAttribute("type", isPassword ? "text" : "password");
                            toggle.setAttribute("aria-pressed", (!isPassword).toString());
                            toggle.classList.toggle("active", !isPassword);
                            const icon = toggle.querySelector("i");
                            if (isPassword) {
                                icon.classList.remove("fa-eye");
                                icon.classList.add("fa-eye-slash");
                            } else {
                                icon.classList.remove("fa-eye-slash");
                                icon.classList.add("fa-eye");
                            }
                        });
                    })();
                </script>
            </div>
            {{#recaptcha}}
                <div class="login-form-recaptcha mb-3">
                    {{{recaptcha}}}
                </div>
            {{/recaptcha}}
            <div class="login-form-submit mb-3">
                <button class="btn btn-primary btn-lg" type="submit" id="loginbtn">{{#str}}login{{/str}}</button>
            </div>
            <div class="login-form-forgotpassword mb-3">
                <a href="{{forgotpasswordurl}}">{{#str}}forgotaccount{{/str}}</a>
            </div>
        </form>
    {{/showloginform}}
    {{#hasidentityproviders}}
        <div class="login-identityproviders">
            <h2 class="login-heading">{{#str}} potentialidps, auth {{/str}}</h2>
            {{#identityproviders}}
                <a class="btn login-identityprovider-btn btn-block" href="{{url}}">
                    {{#iconurl}}
                        <img src="{{iconurl}}" alt="" width="24" height="24"/>
                    {{/iconurl}}
                    {{name}}
                </a>
            {{/identityproviders}}
        </div>
    {{/hasidentityproviders}}
    {{#hasinstructions}}
        <div class="login-divider"></div>
        <div class="login-instructions {{#cansignup}}mb-3{{/cansignup}}">
            <h2 class="login-heading">{{#str}}firsttime{{/str}}</h2>
            {{{instructions}}}
        </div>
    {{/hasinstructions}}
    {{#cansignup}}
        <div class="login-signup">
            <a class="btn btn-secondary" href="{{signupurl}}">{{#str}}startsignup{{/str}}</a>
        </div>
    {{/cansignup}}
    {{#canloginasguest}}
        <div class="login-divider"></div>
        <h2 class="login-heading">{{#str}}someallowguest{{/str}}</h2>
        <form action="{{loginurl}}" method="post" id="guestlogin">
            <input type="hidden" name="logintoken" value="{{logintoken}}">
            <input type="hidden" name="username" value="guest"/>
            <input type="hidden" name="password" value="guest"/>
            <button class="btn btn-secondary" type="submit" id="loginguestbtn">{{#str}}loginguest{{/str}}</button>
        </form>
    {{/canloginasguest}}
</div>

{{#js}}
    {{^error}}
        {{#autofocusform}}
            require(['core_form/events'], function (FormEvent) {
                function autoFocus() {
                    const userNameField = document.getElementById('username');
                    if (userNameField.value.length == 0) {
                        userNameField.focus();
                    } else {
                        document.getElementById('password').focus();
                    }
                }

                autoFocus();
                window.addEventListener(FormEvent.eventTypes.fieldStructureChanged, autoFocus);
            });
        {{/autofocusform}}
    {{/error}}
    {{#error}}
        document.getElementById('loginerrormessage').focus();
    {{/error}}
    require(['core_form/submit'], function(Submit) {
        Submit.init("loginbtn");
        {{#canloginasguest}}
            Submit.init("loginguestbtn");
        {{/canloginasguest}}
    });
{{/js}}
