unsupervised-scheduler/templates/admin/invites.php

<?php
declare(strict_types=1);

if (! defined('ABSPATH')) {
    exit;
}

/**
 * @var list<\Unsupervised\Schedular\Auth\Invite> $pendingInvites
 * @var int    $registrationPageId
 * @var string $registrationPageUrl
 * @var string $newInviteUrl One-time registration link for a just-created invite.
 * @var string $inviteError  Error message when invite creation failed.
 */
?>
<div class="wrap">
    <h1><?php esc_html_e('Invites', 'unsupervised-schedular'); ?></h1>
    <p class="description"><?php esc_html_e('Invite a student by email, then send them the registration link. They complete signup and accept any required policies through the [us_student_register] page.', 'unsupervised-schedular'); ?></p>

    <?php if ($inviteError !== '') : ?>
        <div class="notice notice-error inline">
            <p><?php echo esc_html($inviteError); ?></p>
        </div>
    <?php endif; ?>

    <?php if ($newInviteUrl !== '') : ?>
        <div class="notice notice-success inline">
            <p><?php esc_html_e('Invite created. Copy the registration link now — for security it is not stored and cannot be shown again. To re-send a lost link, revoke the invite and create a new one.', 'unsupervised-schedular'); ?></p>
            <p><input type="text" class="large-text code" readonly value="<?php echo esc_attr($newInviteUrl); ?>" onclick="this.select()"></p>
        </div>
    <?php endif; ?>

    <h2><?php esc_html_e('Registration Page', 'unsupervised-schedular'); ?></h2>
    <form method="post">
        <?php wp_nonce_field('usc_invite_action'); ?>
        <input type="hidden" name="usc_action" value="set_page">
        <table class="form-table">
            <tr>
                <th><label for="registration_page_id"><?php esc_html_e('Page with the registration form', 'unsupervised-schedular'); ?></label></th>
                <td>
                    <?php
                    wp_dropdown_pages(
                        [
                            'name'              => 'registration_page_id',
                            'id'                => 'registration_page_id',
                            'selected'          => $registrationPageId,
                            'show_option_none'  => esc_html__('— Select a page —', 'unsupervised-schedular'),
                            'option_none_value' => '0',
                        ]
                    );
                    ?>
                    <p class="description"><?php esc_html_e('Choose the page that contains the [us_student_register] shortcode. Invitation links point here.', 'unsupervised-schedular'); ?></p>
                </td>
            </tr>
        </table>
        <?php submit_button(esc_html__('Save Page', 'unsupervised-schedular'), 'secondary'); ?>
    </form>

    <?php if ($registrationPageUrl === '') : ?>
        <div class="notice notice-warning inline"><p><?php esc_html_e('No registration page is set yet — invitation links will fall back to the site home page. Select a page above.', 'unsupervised-schedular'); ?></p></div>
    <?php endif; ?>

    <h2><?php esc_html_e('Invite a Student', 'unsupervised-schedular'); ?></h2>
    <form method="post">
        <?php wp_nonce_field('usc_invite_action'); ?>
        <input type="hidden" name="usc_action" value="invite">
        <table class="form-table">
            <tr>
                <th><label for="email"><?php esc_html_e('Email', 'unsupervised-schedular'); ?></label></th>
                <td><input type="email" name="email" id="email" class="regular-text" required></td>
            </tr>
        </table>
        <?php submit_button(esc_html__('Generate Invitation Link', 'unsupervised-schedular')); ?>
    </form>

    <h2><?php esc_html_e('Group Invite Link', 'unsupervised-schedular'); ?></h2>
    <p class="description"><?php esc_html_e('Generate a shareable link (e.g. for a newsletter). Anyone with the link can register until it expires: they enter their own email and must confirm it, but no admin approval is needed afterwards.', 'unsupervised-schedular'); ?></p>
    <form method="post">
        <?php wp_nonce_field('usc_invite_action'); ?>
        <input type="hidden" name="usc_action" value="group_invite">
        <table class="form-table">
            <tr>
                <th><label for="expires_at"><?php esc_html_e('Expires on', 'unsupervised-schedular'); ?></label></th>
                <td>
                    <input type="date" name="expires_at" id="expires_at" required min="<?php echo esc_attr((string) current_time('Y-m-d')); ?>">
                    <p class="description"><?php esc_html_e('The link stops working at the end of this day.', 'unsupervised-schedular'); ?></p>
                </td>
            </tr>
        </table>
        <?php submit_button(esc_html__('Generate Group Link', 'unsupervised-schedular')); ?>
    </form>

    <h2><?php esc_html_e('Pending Invites', 'unsupervised-schedular'); ?></h2>

    <?php if (empty($pendingInvites)) : ?>
        <p><?php esc_html_e('No pending invites.', 'unsupervised-schedular'); ?></p>
    <?php else : ?>
        <table class="wp-list-table widefat fixed striped">
            <thead>
                <tr>
                    <th><?php esc_html_e('Invite', 'unsupervised-schedular'); ?></th>
                    <th><?php esc_html_e('Created', 'unsupervised-schedular'); ?></th>
                    <th><?php esc_html_e('Expires', 'unsupervised-schedular'); ?></th>
                    <th><?php esc_html_e('Actions', 'unsupervised-schedular'); ?></th>
                </tr>
            </thead>
            <tbody>
                <?php $now = current_time('mysql'); ?>
                <?php foreach ($pendingInvites as $invite) : ?>
                    <tr>
                        <td>
                            <?php echo $invite->isGroup() ? esc_html__('Group link', 'unsupervised-schedular') : esc_html($invite->email); ?>
                            <?php if ($invite->isExpired($now)) : ?>
                                <span class="us-invite-expired" style="color:#b32d2e;">— <?php esc_html_e('expired', 'unsupervised-schedular'); ?></span>
                            <?php endif; ?>
                        </td>
                        <td>
                            <?php echo esc_html((string) $invite->createdAt); ?>
                        </td>
                        <td>
                            <?php echo esc_html($invite->expiresAt !== null ? (string) mysql2date('M j, Y', $invite->expiresAt) : '—'); ?>
                        </td>
                        <td>
                            <form method="post" style="display:inline;">
                                <?php wp_nonce_field('usc_invite_action'); ?>
                                <input type="hidden" name="usc_action" value="revoke">
                                <input type="hidden" name="invite_id" value="<?php echo esc_attr((string) $invite->id); ?>">
                                <button type="submit" class="button button-small button-link-delete">
                                    <?php esc_html_e('Revoke', 'unsupervised-schedular'); ?>
                                </button>
                            </form>
                        </td>
                    </tr>
                <?php endforeach; ?>
            </tbody>
        </table>
    <?php endif; ?>
</div>