/**
 * Handles the "Send Invite" metabox functionality on the Job edit screen.
 */
(function($) {
    'use strict';

    $(document).ready(function() {
        const $metabox = $('#quiztech_send_invite_metabox');
        if (!$metabox.length) {
            return; // Metabox not found
        }

        const $button = $metabox.find('#quiztech_send_invite_button');
        const $emailInput = $metabox.find('#quiztech_applicant_email');
        const $statusSpan = $metabox.find('#quiztech_invite_status');

        $button.on('click', function() {
            const email = $emailInput.val().trim();

            // Basic email validation (more robust validation can be added)
            if (!email || !/\S+@\S+\.\S+/.test(email)) {
                $statusSpan.text('Please enter a valid email address.').css('color', 'red').show();
                $emailInput.focus();
                return;
            }

            // Disable button and show status
            $button.prop('disabled', true);
            $statusSpan.text(quiztechJobMetabox.sending_text).css('color', '').show();

            // AJAX request
            $.post(quiztechJobMetabox.ajax_url, {
                action: 'quiztech_send_job_invite',
                nonce: quiztechJobMetabox.nonce,
                job_id: quiztechJobMetabox.job_id, // Passed via wp_localize_script
                email: email
            }, function(response) {
                if (response.success) {
                    $statusSpan.text(response.data.message).css('color', 'green');
                    $emailInput.val(''); // Clear email field on success
                } else {
                    const errorMsg = response.data && response.data.message ? response.data.message : 'Unknown error.';
                    $statusSpan.text(quiztechJobMetabox.error_text + ' ' + errorMsg).css('color', 'red');
                }
            }).fail(function() {
                $statusSpan.text(quiztechJobMetabox.ajax_fail_text).css('color', 'red');
            }).always(function() {
                // Re-enable button
                $button.prop('disabled', false);
            });
        });
    });

})(jQuery);