iD/modules/ui/status.js

import { t } from '../util/locale';

export function uiStatus(context) {
    var connection = context.connection(),
        errCount = 0;

    return function(selection) {

        function update() {
            connection.status(function(err, apiStatus) {
                selection.html('');
                if (err && errCount++ < 2) return;

                if (err) {
                    selection.text(t('status.error'));
                } else if (apiStatus === 'readonly') {
                    selection.text(t('status.readonly'));
                } else if (apiStatus === 'offline') {
                    selection.text(t('status.offline'));
                }

                selection.attr('class', 'api-status ' + (err ? 'error' : apiStatus));
                if (!err) errCount = 0;
            });
        }

        connection
            .on('auth', function() { update(selection); });

        window.setInterval(update, 90000);
        update(selection);
    };
}