// Copyright (c) 2015 Spinpunch, Inc. All Rights Reserved.
// See License.txt for license information.

var utils = require('../utils/utils.jsx');
var client = require('../utils/client.jsx');
var UserStore = require('../stores/user_store.jsx');
var BrowserStore = require('../stores/browser_store.jsx');
var constants = require('../utils/constants.jsx');

WelcomePage = React.createClass({
    submitNext: function (e) {
        if (!BrowserStore.isLocalStorageSupported()) {
            this.setState({storageError: 'This service requires local storage to be enabled. Please enable it or exit private browsing.'});
            return;
        }
        e.preventDefault();
        this.props.state.wizard = 'team_display_name';
        this.props.updateParent(this.props.state);
    },
    handleDiffEmail: function (e) {
        e.preventDefault();
        this.setState({useDiff: true});
    },
    handleDiffSubmit: function (e) {
        e.preventDefault();

        var state = {useDiff: true, serverError: ''};

        var email = this.refs.email.getDOMNode().value.trim().toLowerCase();
        if (!email || !utils.isEmail(email)) {
            state.emailError = 'Please enter a valid email address';
            this.setState(state);
            return;
        } else if (!BrowserStore.isLocalStorageSupported()) {
            state.emailError = 'This service requires local storage to be enabled. Please enable it or exit private browsing.';
            this.setState(state);
            return;
        } else {
            state.emailError = '';
        }

        client.signupTeam(email,
            function(data) {
                if (data['follow_link']) {
                    window.location.href = data['follow_link'];
                } else {
                    this.props.state.wizard = 'finished';
                    this.props.updateParent(this.props.state);
                    window.location.href = '/signup_team_confirm/?email=' + encodeURIComponent(team.email);
                }
            }.bind(this),
            function(err) {
                this.state.serverError = err.message;
                this.setState(this.state);
            }.bind(this)
        );
    },
    getInitialState: function() {
        return {useDiff: false};
    },
    handleKeyPress: function(event) {
        if (event.keyCode === 13) {
            this.submitNext(event);
        }
    },
    componentWillMount: function() {
        document.addEventListener('keyup', this.handleKeyPress, false);
    },
    componentWillUnmount: function() {
        document.removeEventListener('keyup', this.handleKeyPress, false);
    },
    render: function() {
        client.track('signup', 'signup_team_01_welcome');

        var storageError = null;
        if (this.state.storageError) {
            storageError = <label className='control-label'>{this.state.storageError}</label>;
        }

        var emailError = null;
        var emailDivClass = 'form-group';
        if (this.state.emailError) {
            emailError = <label className='control-label'>{this.state.emailError}</label>;
            emailDivClass += ' has-error';
        }

        var serverError = null;
        if (this.state.serverError) {
            serverError = (
                <div className='form-group has-error'>
                    <label className='control-label'>{this.state.serverError}</label>
                </div>
            );
        }

        var differentEmailLinkClass = '';
        var emailDivContainerClass = 'hidden';
        if (this.state.useDiff) {
            differentEmailLinkClass = 'hidden';
            emailDivContainerClass = '';
        }

        return (
            <div>
                <p>
                    <img className='signup-team-logo' src='/static/images/logo.png' />
                    <h3 className='sub-heading'>Welcome to:</h3>
                    <h1 className='margin--top-none'>{config.SiteName}</h1>
                </p>
                <p className='margin--less'>Let's set up your new team</p>
                <p>
                    Please confirm your email address:<br />
                    <div className='inner__content'>
                        <div className='block--gray'>{this.props.state.team.email}</div>
                    </div>
                </p>
                <p className='margin--extra color--light'>
                    Your account will administer the new team site. <br />
                    You can add other administrators later.
                </p>
                <div className='form-group'>
                    <button className='btn-primary btn form-group' type='submit' onClick={this.submitNext}><i className='glyphicon glyphicon-ok'></i>Yes, this address is correct</button>
                    {storageError}
                </div>
                <hr />
                <div className={emailDivContainerClass}>
                    <div className={emailDivClass}>
                        <div className='row'>
                            <div className='col-sm-9'>
                                <input type='email' ref='email' className='form-control' placeholder='Email Address' maxLength='128' />
                            </div>
                        </div>
                        {emailError}
                    </div>
                    {serverError}
                    <button className='btn btn-md btn-primary' type='button' onClick={this.handleDiffSubmit} type='submit'>Use this instead</button>
                </div>
                <a href='#' onClick={this.handleDiffEmail} className={differentEmailLinkClass}>Use a different email</a>
            </div>
        );
    }
});

TeamDisplayNamePage = React.createClass({
    submitBack: function (e) {
        e.preventDefault();
        this.props.state.wizard = 'welcome';
        this.props.updateParent(this.props.state);
    },
    submitNext: function (e) {
        e.preventDefault();

        var display_name = this.refs.name.getDOMNode().value.trim();
        if (!display_name) {
            this.setState({nameError: 'This field is required'});
            return;
        }

        this.props.state.wizard = 'team_url';
        this.props.state.team.display_name = display_name;
        this.props.state.team.name = utils.cleanUpUrlable(display_name);
        this.props.updateParent(this.props.state);
    },
    getInitialState: function() {
        return {};
    },
    handleFocus: function(e) {
        e.preventDefault();

        e.currentTarget.select();
    },
    render: function() {
        client.track('signup', 'signup_team_02_name');

        var nameError = null;
        var nameDivClass = 'form-group';
        if (this.state.nameError) {
            nameError = <label className='control-label'>{this.state.nameError}</label>;
            nameDivClass += ' has-error';
        }

        return (
            <div>
                <form>
                    <img className='signup-team-logo' src='/static/images/logo.png' />

                    <h2>{utils.toTitleCase(strings.Team) + ' Name'}</h2>
                    <div className={nameDivClass}>
                        <div className='row'>
                            <div className='col-sm-9'>
                                <input type='text' ref='name' className='form-control' placeholder='' maxLength='128' defaultValue={this.props.state.team.display_name} autoFocus={true} onFocus={this.handleFocus} />
                            </div>
                        </div>
                        {nameError}
                    </div>
                    <div>{'Name your ' + strings.Team + ' in any language. Your ' + strings.Team + ' name shows in menus and headings.'}</div>
                    <button type='submit' className='btn btn-primary margin--extra' onClick={this.submitNext}>Next<i className='glyphicon glyphicon-chevron-right'></i></button>
                    <div className='margin--extra'>
                        <a href='#' onClick={this.submitBack}>Back to previous step</a>
                    </div>
                </form>
            </div>
        );
    }
});

TeamURLPage = React.createClass({
    submitBack: function (e) {
        e.preventDefault();
        this.props.state.wizard = 'team_display_name';
        this.props.updateParent(this.props.state);
    },
    submitNext: function (e) {
        e.preventDefault();

        var name = this.refs.name.getDOMNode().value.trim();
        if (!name) {
            this.setState({nameError: 'This field is required'});
            return;
        }

        var cleanedName = utils.cleanUpUrlable(name);

        var urlRegex = /^[a-z0-9]+([a-z\-0-9]+|(__)?)[a-z0-9]+$/g;
        if (cleanedName !== name || !urlRegex.test(name)) {
            this.setState({nameError: 'Must be lowercase alphanumeric characters'});
            return;
        } else if (cleanedName.length <= 3 || cleanedName.length > 15) {
            this.setState({nameError: 'Name must be 4 or more characters up to a maximum of 15'});
            return;
        }

        for (var index = 0; index < constants.RESERVED_TEAM_NAMES.length; index++) {
            if (cleanedName.indexOf(constants.RESERVED_TEAM_NAMES[index]) === 0) {
                this.setState({nameError: 'This team name is unavailable'});
                return;
            }
        }

        client.findTeamByName(name,
            function(data) {
                if (!data) {
                    if (config.AllowSignupDomainsWizard) {
                        this.props.state.wizard = 'allowed_domains';
                    } else {
                        this.props.state.wizard = 'send_invites';
                        this.props.state.team.type = 'O';
                    }

                    this.props.state.team.name = name;
                    this.props.updateParent(this.props.state);
                } else {
                    this.state.nameError = 'This URL is unavailable. Please try another.';
                    this.setState(this.state);
                }
            }.bind(this),
            function(err) {
                this.state.nameError = err.message;
                this.setState(this.state);
            }.bind(this)
        );
    },
    getInitialState: function() {
        return {};
    },
    handleFocus: function(e) {
        e.preventDefault();

        e.currentTarget.select();
    },
    render: function() {
        $('body').tooltip( {selector: '[data-toggle=tooltip]', trigger: 'hover click'} );

        client.track('signup', 'signup_team_03_url');

        var nameError = null;
        var nameDivClass = 'form-group';
        if (this.state.nameError) {
            nameError = <label className='control-label'>{this.state.nameError}</label>;
            nameDivClass += ' has-error';
        }

        return (
            <div>
                <form>
                    <img className='signup-team-logo' src='/static/images/logo.png' />
                    <h2>{utils.toTitleCase(strings.Team) + ' URL'}</h2>
                    <div className={nameDivClass}>
                        <div className='row'>
                            <div className='col-sm-11'>
                                <div className='input-group input-group--limit'>
                                    <span data-toggle='tooltip' title={utils.getWindowLocationOrigin() + '/'} className='input-group-addon'>{utils.getWindowLocationOrigin() + '/'}</span>
                                    <input type='text' ref='name' className='form-control' placeholder='' maxLength='128' defaultValue={this.props.state.team.name} autoFocus={true} onFocus={this.handleFocus}/>
                                </div>
                            </div>
                        </div>
                        {nameError}
                    </div>
                    <p>{'Choose the web address of your new ' + strings.Team + ':'}</p>
                    <ul className='color--light'>
                        <li>Short and memorable is best</li>
                        <li>Use lowercase letters, numbers and dashes</li>
                        <li>Must start with a letter and can't end in a dash</li>
                    </ul>
                    <button type='submit' className='btn btn-primary margin--extra' onClick={this.submitNext}>Next<i className='glyphicon glyphicon-chevron-right'></i></button>
                    <div className='margin--extra'>
                        <a href='#' onClick={this.submitBack}>Back to previous step</a>
                    </div>
                </form>
            </div>
        );
    }
});

AllowedDomainsPage = React.createClass({
    submitBack: function (e) {
        e.preventDefault();
        this.props.state.wizard = 'team_url';
        this.props.updateParent(this.props.state);
    },
    submitNext: function (e) {
        e.preventDefault();

        if (this.refs.open_network.getDOMNode().checked) {
            this.props.state.wizard = 'send_invites';
            this.props.state.team.type = 'O';
            this.props.updateParent(this.props.state);
            return;
        }

        if (this.refs.allow.getDOMNode().checked) {
            var name = this.refs.name.getDOMNode().value.trim();
            var domainRegex = /^\w+\.\w+$/;
            if (!name) {
                this.setState({nameError: 'This field is required'});
                return;
            }

            if (!name.trim().match(domainRegex)) {
                this.setState({nameError: 'The domain doesn\'t appear valid'});
                return;
            }

            this.props.state.wizard = 'send_invites';
            this.props.state.team.allowed_domains = name;
            this.props.state.team.type = 'I';
            this.props.updateParent(this.props.state);
        } else {
            this.props.state.wizard = 'send_invites';
            this.props.state.team.type = 'I';
            this.props.updateParent(this.props.state);
        }
    },
    getInitialState: function() {
        return {};
    },
    render: function() {
        client.track('signup', 'signup_team_04_allow_domains');

        var nameError = null;
        var nameDivClass = 'form-group';
        if (this.state.nameError) {
            nameError = <label className='control-label'>{this.state.nameError}</label>;
            nameDivClass += ' has-error';
        }

        return (
            <div>
                <form>
                    <img className='signup-team-logo' src='/static/images/logo.png' />
                    <h2>Email Domain</h2>
                    <p>
                        <div className='checkbox'>
                            <label><input type='checkbox' ref='allow' defaultChecked />{' Allow sign up and ' + strings.Team + ' discovery with a ' + strings.Company + ' email address.'}</label>
                        </div>
                    </p>
                    <p>{'Check this box to allow your ' + strings.Team + ' members to sign up using their ' + strings.Company + ' email addresses if you share the same domain--otherwise, you need to invite everyone yourself.'}</p>
                    <h4>{'Your ' + strings.Team + '\'s domain for emails'}</h4>
                    <div className={nameDivClass}>
                        <div className='row'>
                            <div className='col-sm-9'>
                                <div className='input-group'>
                                    <span className='input-group-addon'>@</span>
                                    <input type='text' ref='name' className='form-control' placeholder='' maxLength='128' defaultValue={this.props.state.team.allowed_domains} autoFocus={true} onFocus={this.handleFocus}/>
                                </div>
                            </div>
                        </div>
                        {nameError}
                    </div>
                    <p>To allow signups from multiple domains, separate each with a comma.</p>
                    <p>
                        <div className='checkbox'>
                            <label><input type='checkbox' ref='open_network' defaultChecked={this.props.state.team.type === 'O'} /> Allow anyone to signup to this domain without an invitation.</label>
                        </div>
                    </p>
                    <button type='button' className='btn btn-default' onClick={this.submitBack}><i className='glyphicon glyphicon-chevron-left'></i> Back</button>&nbsp;
                    <button type='submit' className='btn-primary btn' onClick={this.submitNext}>Next<i className='glyphicon glyphicon-chevron-right'></i></button>
                </form>
            </div>
        );
    }
});

EmailItem = React.createClass({
    getInitialState: function() {
        return {};
    },
    getValue: function() {
        return this.refs.email.getDOMNode().value.trim();
    },
    validate: function(teamEmail) {
        var email = this.refs.email.getDOMNode().value.trim().toLowerCase();

        if (!email) {
            return true;
        }

        if (!utils.isEmail(email)) {
            this.state.emailError = 'Please enter a valid email address';
            this.setState(this.state);
            return false;
        } else if (email === teamEmail) {
            this.state.emailError = 'Please use a different email than the one used at signup';
            this.setState(this.state);
            return false;
        } else {
            this.state.emailError = '';
            this.setState(this.state);
            return true;
        }
    },
    render: function() {
        var emailError = null;
        var emailDivClass = 'form-group';
        if (this.state.emailError) {
            emailError = <label className='control-label'>{ this.state.emailError }</label>;
            emailDivClass += ' has-error';
        }

        return (
            <div className={emailDivClass}>
                <input autoFocus={this.props.focus} type='email' ref='email' className='form-control' placeholder='Email Address' defaultValue={this.props.email} maxLength='128' />
                {emailError}
            </div>
        );
    }
});

SendInivtesPage = React.createClass({
    submitBack: function (e) {
        e.preventDefault();

        if (config.AllowSignupDomainsWizard) {
            this.props.state.wizard = 'allowed_domains';
        } else {
            this.props.state.wizard = 'team_url';
        }

        this.props.updateParent(this.props.state);
    },
    submitNext: function (e) {
        e.preventDefault();

        var valid = true;

        if (this.state.emailEnabled) {
            var emails = [];

            for (var i = 0; i < this.props.state.invites.length; i++) {
                if (!this.refs['email_' + i].validate(this.props.state.team.email)) {
                    valid = false;
                } else {
                    emails.push(this.refs['email_' + i].getValue());
                }
            }

            if (valid) {
                this.props.state.invites = emails;
            }
        }

        if (valid) {
            this.props.state.wizard = 'username';
            this.props.updateParent(this.props.state);
        }
    },
    submitAddInvite: function (e) {
        e.preventDefault();
        this.props.state.wizard = 'send_invites';
        if (!this.props.state.invites) {
            this.props.state.invites = [];
        }
        this.props.state.invites.push('');
        this.props.updateParent(this.props.state);
    },
    submitSkip: function (e) {
        e.preventDefault();
        this.props.state.wizard = 'username';
        this.props.updateParent(this.props.state);
    },
    getInitialState: function() {
        return {
            emailEnabled: client.isEmailEnabledSynchronous()
        };
    },
    render: function() {
        client.track('signup', 'signup_team_05_send_invites');

        var content = null;
        var bottomContent = null;

        if (this.state.emailEnabled) {
            var emails = [];

            for (var i = 0; i < this.props.state.invites.length; i++) {
                if (i === 0) {
                    emails.push(<EmailItem focus={true} key={i} ref={'email_' + i} email={this.props.state.invites[i]} />);
                } else {
                    emails.push(<EmailItem focus={false} key={i} ref={'email_' + i} email={this.props.state.invites[i]} />);
                }
            }

            content = (
                <div>
                    {emails}
                    <div className='form-group text-right'><a href='#' onClick={this.submitAddInvite}>Add Invitation</a></div>
                </div>
            );

            bottomContent = (
                <p className='color--light'>{'if you prefer, you can invite ' + strings.Team + ' members later'}<br /> and <a href='#' onClick={this.submitSkip}>skip this step</a> for now.</p>
            );
        } else {
            content = (
                <div className='form-group color--light'>Email is currently disabled for your team, and emails cannot be sent. Contact your system administrator to enable email and email invitations.</div>
            );
        }

        return (
            <div>
                <form>
                    <img className='signup-team-logo' src='/static/images/logo.png' />
                    <h2>{'Invite ' + utils.toTitleCase(strings.Team) + ' Members'}</h2>
                    {content}
                    <div className='form-group'>
                        <button type='submit' className='btn-primary btn' onClick={this.submitNext}>Next<i className='glyphicon glyphicon-chevron-right'></i></button>
                    </div>
                </form>
                {bottomContent}
                <div className='margin--extra'>
                    <a href='#' onClick={this.submitBack}>Back to previous step</a>
                </div>
            </div>
        );
    }
});

UsernamePage = React.createClass({
    submitBack: function(e) {
        e.preventDefault();
        this.props.state.wizard = 'send_invites';
        this.props.updateParent(this.props.state);
    },
    submitNext: function(e) {
        e.preventDefault();

        var name = this.refs.name.getDOMNode().value.trim();

        var usernameError = utils.isValidUsername(name);
        if (usernameError === 'Cannot use a reserved word as a username.') {
            this.setState({nameError: 'This username is reserved, please choose a new one.'});
            return;
        } else if (usernameError) {
            this.setState({nameError: 'Username must begin with a letter, and contain 3 to 15 characters in total, which may be numbers, lowercase letters, or any of the symbols \'.\', \'-\', or \'_\''});
            return;
        }

        this.props.state.wizard = 'password';
        this.props.state.user.username = name;
        this.props.updateParent(this.props.state);
    },
    getInitialState: function() {
        return {};
    },
    render: function() {
        client.track('signup', 'signup_team_06_username');

        var nameError = null;
        var nameDivClass = 'form-group';
        if (this.state.nameError) {
            nameError = <label className='control-label'>{this.state.nameError}</label>;
            nameDivClass += ' has-error';
        }

        return (
            <div>
                <form>
                    <img className='signup-team-logo' src='/static/images/logo.png' />
                    <h2 className='margin--less'>Your username</h2>
                    <h5 className='color--light'>{'Select a memorable username that makes it easy for ' + strings.Team + 'mates to identify you:'}</h5>
                    <div className='inner__content margin--extra'>
                        <div className={nameDivClass}>
                            <div className='row'>
                                <div className='col-sm-11'>
                                    <h5><strong>Choose your username</strong></h5>
                                    <input autoFocus={true} type='text' ref='name' className='form-control' placeholder='' defaultValue={this.props.state.user.username} maxLength='128' />
                                    <div className='color--light form__hint'>Usernames must begin with a letter and contain 3 to 15 characters made up of lowercase letters, numbers, and the symbols '.', '-' and '_'</div>
                                </div>
                            </div>
                            {nameError}
                        </div>
                    </div>
                    <button type='submit' className='btn btn-primary margin--extra' onClick={this.submitNext}>Next<i className='glyphicon glyphicon-chevron-right'></i></button>
                    <div className='margin--extra'>
                        <a href='#' onClick={this.submitBack}>Back to previous step</a>
                    </div>
                </form>
            </div>
        );
    }
});

PasswordPage = React.createClass({
    submitBack: function (e) {
        e.preventDefault();
        this.props.state.wizard = 'username';
        this.props.updateParent(this.props.state);
    },
    submitNext: function (e) {
        e.preventDefault();

        var password = this.refs.password.getDOMNode().value.trim();
        if (!password || password.length < 5) {
            this.setState({passwordError: 'Please enter at least 5 characters'});
            return;
        }

        this.setState({passwordError: null, serverError: null});
        $('#finish-button').button('loading');
        var teamSignup = JSON.parse(JSON.stringify(this.props.state));
        teamSignup.user.password = password;
        teamSignup.user.allow_marketing = true;
        delete teamSignup.wizard;
        var ctl = this;

        client.createTeamFromSignup(teamSignup,
            function(data) {
                client.track('signup', 'signup_team_08_complete');

                var props = this.props;

                $('#sign-up-button').button('reset');
                props.state.wizard = 'finished';
                props.updateParent(props.state, true);

                window.location.href = utils.getWindowLocationOrigin() + '/' + props.state.team.name + '/login?email=' + encodeURIComponent(teamSignup.team.email);

                // client.loginByEmail(teamSignup.team.domain, teamSignup.team.email, teamSignup.user.password,
                //     function(data) {
                //         TeamStore.setLastName(teamSignup.team.domain);
                //         UserStore.setLastEmail(teamSignup.team.email);
                //         UserStore.setCurrentUser(data);
                //         window.location.href = '/channels/town-square';
                //     }.bind(ctl),
                //     function(err) {
                //         this.setState({nameError: err.message});
                //     }.bind(ctl)
                // );
            }.bind(this),
            function(err) {
                this.setState({serverError: err.message});
                $('#sign-up-button').button('reset');
            }.bind(this)
        );
    },
    getInitialState: function() {
        return {};
    },
    render: function() {
        client.track('signup', 'signup_team_07_password');

        var passwordError = null;
        var passwordDivStyle = 'form-group';
        if (this.state.passwordError) {
            passwordError = <div className='form-group has-error'><label className='control-label'>{this.state.passwordError}</label></div>;
            passwordDivStyle = ' has-error';
        }

        var serverError = null;
        if (this.state.serverError) {
            serverError = <div className='form-group has-error'><label className='control-label'>{this.state.serverError}</label></div>;
        }

        return (
            <div>
                <form>
                    <img className='signup-team-logo' src='/static/images/logo.png' />
                    <h2 className='margin--less'>Your password</h2>
                    <h5 className='color--light'>Select a password that you'll use to login with your email address:</h5>
                    <div className='inner__content margin--extra'>
                        <h5><strong>Email</strong></h5>
                        <div className='block--gray form-group'>{this.props.state.team.email}</div>
                        <div className={passwordDivStyle}>
                            <div className='row'>
                                <div className='col-sm-11'>
                                    <h5><strong>Choose your password</strong></h5>
                                    <input autoFocus={true} type='password' ref='password' className='form-control' placeholder='' maxLength='128' />
                                    <div className='color--light form__hint'>Passwords must contain 5 to 50 characters. Your password will be strongest if it contains a mix of symbols, numbers, and upper and lowercase characters.</div>
                                </div>
                            </div>
                            {passwordError}
                            {serverError}
                        </div>
                    </div>
                    <div className='form-group'>
                        <button type='submit' className='btn btn-primary margin--extra' id='finish-button' data-loading-text={'<span class=\'glyphicon glyphicon-refresh glyphicon-refresh-animate\'></span> Creating ' + strings.Team + '...'} onClick={this.submitNext}>Finish</button>
                    </div>
                    <p>By proceeding to create your account and use {config.SiteName}, you agree to our <a href={config.TermsLink}>Terms of Service</a> and <a href={config.PrivacyLink}>Privacy Policy</a>. If you do not agree, you cannot use {config.SiteName}.</p>
                    <div className='margin--extra'>
                        <a href='#' onClick={this.submitBack}>Back to previous step</a>
                    </div>
                </form>
            </div>
        );
    }
});

module.exports = React.createClass({
    updateParent: function(state, skipSet) {
        BrowserStore.setGlobalItem(this.props.hash, state);

        if (!skipSet) {
            this.setState(state);
        }
    },
    getInitialState: function() {
        var props = BrowserStore.getGlobalItem(this.props.hash);

        if (!props) {
            props = {};
            props.wizard = 'welcome';
            props.team = {};
            props.team.email = this.props.email;
            props.team.allowed_domains = '';
            props.invites = [];
            props.invites.push('');
            props.invites.push('');
            props.invites.push('');
            props.user = {};
            props.hash = this.props.hash;
            props.data = this.props.data;
        }

        return props;
    },
    render: function() {
        if (this.state.wizard === 'welcome') {
            return <WelcomePage state={this.state} updateParent={this.updateParent} />;
        }

        if (this.state.wizard === 'team_display_name') {
            return <TeamDisplayNamePage state={this.state} updateParent={this.updateParent} />;
        }

        if (this.state.wizard === 'team_url') {
            return <TeamURLPage state={this.state} updateParent={this.updateParent} />;
        }

        if (this.state.wizard === 'allowed_domains') {
            return <AllowedDomainsPage state={this.state} updateParent={this.updateParent} />;
        }

        if (this.state.wizard === 'send_invites') {
            return <SendInivtesPage state={this.state} updateParent={this.updateParent} />;
        }

        if (this.state.wizard === 'username') {
            return <UsernamePage state={this.state} updateParent={this.updateParent} />;
        }

        if (this.state.wizard === 'password') {
            return <PasswordPage state={this.state} updateParent={this.updateParent} />;
        }

        return (<div>You've already completed the signup process for this invitation or this invitation has expired.</div>);
    }
});