unsupervised-scheduler/templates/admin/settings.php

<?php
declare(strict_types=1);

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

/**
 * @var string $publishableKey
 * @var string $secretKey
 * @var string $webhookSecret
 * @var string $webhookUrl
 * @var string $mode
 * @var string $currency
 * @var string $etransferEmail
 * @var float  $hstRate
 * @var bool   $stripeConfigured
 */
?>
<div class="wrap">
    <h1><?php esc_html_e('Studio Settings', 'unsupervised-schedular'); ?></h1>

    <div class="notice notice-info inline">
        <p>
            <?php if ($stripeConfigured) : ?>
                <?php esc_html_e('Stripe is configured — new registrations default to credit-card billing.', 'unsupervised-schedular'); ?>
            <?php else : ?>
                <?php esc_html_e('Stripe is not configured — new registrations default to e-transfer, which a studio admin marks paid on receipt. Add your Stripe keys below to enable card billing.', 'unsupervised-schedular'); ?>
            <?php endif; ?>
        </p>
    </div>

    <h2><?php esc_html_e('Stripe', 'unsupervised-schedular'); ?></h2>
    <form method="post">
        <?php wp_nonce_field('usc_settings_action'); ?>
        <input type="hidden" name="usc_action" value="save">
        <table class="form-table">
            <tr>
                <th><label for="publishable_key"><?php esc_html_e('Publishable key', 'unsupervised-schedular'); ?></label></th>
                <td><input type="text" name="publishable_key" id="publishable_key" class="regular-text" value="<?php echo esc_attr($publishableKey); ?>" autocomplete="off"></td>
            </tr>
            <tr>
                <th><label for="secret_key"><?php esc_html_e('Secret key', 'unsupervised-schedular'); ?></label></th>
                <td><input type="password" name="secret_key" id="secret_key" class="regular-text" value="<?php echo esc_attr($secretKey); ?>" autocomplete="off"></td>
            </tr>
            <tr>
                <th><label for="webhook_secret"><?php esc_html_e('Webhook signing secret', 'unsupervised-schedular'); ?></label></th>
                <td>
                    <input type="password" name="webhook_secret" id="webhook_secret" class="regular-text" value="<?php echo esc_attr($webhookSecret); ?>" autocomplete="off">
                    <p class="description">
                        <?php esc_html_e('In the Stripe Dashboard, add a webhook endpoint for the payment_intent.succeeded and payment_intent.payment_failed events pointing at:', 'unsupervised-schedular'); ?><br>
                        <code><?php echo esc_html($webhookUrl); ?></code><br>
                        <?php esc_html_e('then paste its signing secret (whsec_…) here. Card payments are only marked paid once Stripe confirms them via this webhook.', 'unsupervised-schedular'); ?>
                    </p>
                </td>
            </tr>
            <tr>
                <th><label for="mode"><?php esc_html_e('Mode', 'unsupervised-schedular'); ?></label></th>
                <td>
                    <select name="mode" id="mode">
                        <option value="test" <?php selected($mode, 'test'); ?>><?php esc_html_e('Test', 'unsupervised-schedular'); ?></option>
                        <option value="live" <?php selected($mode, 'live'); ?>><?php esc_html_e('Live', 'unsupervised-schedular'); ?></option>
                    </select>
                </td>
            </tr>
            <tr>
                <th><label for="currency"><?php esc_html_e('Default currency', 'unsupervised-schedular'); ?></label></th>
                <td><input type="text" name="currency" id="currency" class="small-text" maxlength="3" value="<?php echo esc_attr($currency); ?>"></td>
            </tr>
            <tr>
                <th><label for="hst_rate"><?php esc_html_e('Default HST rate (%)', 'unsupervised-schedular'); ?></label></th>
                <td>
                    <input type="number" name="hst_rate" id="hst_rate" class="small-text" min="0" max="100" step="0.01" value="<?php echo esc_attr(number_format($hstRate, 2)); ?>">
                    <p class="description"><?php esc_html_e('Added to the subtotal when billing. 0 means no tax. Overridable per booking on My Lessons.', 'unsupervised-schedular'); ?></p>
                </td>
            </tr>
        </table>

        <h2><?php esc_html_e('E-transfer', 'unsupervised-schedular'); ?></h2>
        <table class="form-table">
            <tr>
                <th><label for="etransfer_email"><?php esc_html_e('Default e-transfer email', 'unsupervised-schedular'); ?></label></th>
                <td>
                    <input type="email" name="etransfer_email" id="etransfer_email" class="regular-text" value="<?php echo esc_attr($etransferEmail); ?>">
                    <p class="description"><?php esc_html_e('Where students send e-transfers, unless an offering overrides it. Instructors can also override per offering or per booking.', 'unsupervised-schedular'); ?></p>
                </td>
            </tr>
        </table>
        <?php submit_button(esc_html__('Save Settings', 'unsupervised-schedular')); ?>
    </form>
</div>