{% extends 'admin/change_form.html' %}

{% block admin_change_form_document_ready %}
    {{ block.super }}

    {{ readable_crontabs|json_script:"readable-crontabs" }}
    <script id="periodic-task-overrides">
        const readableCrontabs = JSON.parse(django.jQuery("#readable-crontabs").text());
        var originalCrontabHelp = "{{ adminform.form.fields.crontab.help_text }}";

        var updateCrontabHelp = function(additional) {
            django.jQuery(".field-crontab .help").html(
                `${originalCrontabHelp}<br/>Translation: ${additional}`);
        };

        django.jQuery(".field-crontab_translation").hide()
        django.jQuery(".field-crontab").change(function() {
            updateCrontabHelp(readableCrontabs[django.jQuery("#id_crontab").val()]);
        });

    </script>
{% endblock %}