const { Clutter, GObject, Shell, St } = imports.gi;
const PanelMenu = imports.ui.panelMenu;

var RealmPanelIndicator = GObject.registerClass(
class RealmPanelIndicator extends PanelMenu.Button {
        _init() {
            super._init(0.5, "Current Realm");

            this._label = new St.Label({
                style_class: 'current-realm-label',
                y_align: Clutter.ActorAlign.CENTER
            });
            this.add_child(this._label);

            this.update();
        }

        clear() {
            this._label.set_text('');
        }

        update() {
            let realm_name = '';
            const realms = Shell.Realms.get_default();
            let current = realms.current_realm;
            if (current) {
                realm_name = current.realm_name;
                this._label.set_text(`realm-${realm_name}`);
            }

            if (realm_name.length > 0) {
                this._label.set_text(`realm-${realm_name}`);
            } else {
                this._label.set_text('');
            }
        }
    });