/**
* Ensures that we've got a singleton
*/
public static function instance()
{
if (empty(self::$instance)) {
// Don't try to initialize with no URL
if (participad_api_endpoint()) {
self::$instance = new Participad_Client(participad_api_key(), participad_api_endpoint());
}
}
return self::$instance;
}
/**
* Is Participad installed correctly?
*/
function participad_is_installed_correctly()
{
$is_installed_correctly = true;
$api_endpoint = participad_api_endpoint();
$api_key = participad_api_key();
if (!$api_endpoint || !$api_key) {
$is_installed_correctly = false;
}
if (!method_exists(participad_client(), 'is_connected') || !participad_client()->is_connected()) {
$is_installed_correctly = false;
}
return $is_installed_correctly;
}
/**
* Check to see whether Participad is set up correctly, and show a notice
*
* @since 1.0
*/
function participad_setup_admin_notice()
{
if (!current_user_can('manage_options')) {
return;
}
if (!participad_is_installed_correctly()) {
$html = '<div class="message error">';
$html .= '<p>';
if (participad_is_admin_page()) {
if (!participad_api_endpoint()) {
$message = __('You must provide a valid Etherpad Lite URL.', 'participad');
} else {
if (!participad_api_key()) {
$message = __('You must provide a valid Etherpad Lite API key. You can find this key in the <code>APIKEY.txt</code> file in the root of your Etherpad Lite installation.', 'participad');
} else {
$message = __('We couldn\'t find an Etherpad Lite installation at the URL you provided. Please check the details and try again.', 'participad');
}
}
$html .= $message;
} else {
$html .= sprintf(__('<strong>Participad is not set up correctly.</strong> Visit the <a href="%s">settings page</a> to learn more.', 'participad'), participad_admin_url());
}
$html .= '</p>';
$html .= '</div>';
echo $html;
}
}
