sclass SavedSessions extends Module {
  SS sessions = synchroMap(); // TODO: notifyingMap(rSetVarToTrue(changed));

  transient JTable table;
  transient new Var<Bool> changed;
  
  svoid triggerUpdate {
    changed.set(true); super.triggerUpdate();
  }
  
  JComponent visualize() {
    table = sexyTable();
    triggerUpdate();
    ret centerAndSouthWithMargins(table, jbutton("Save session", r {
      fS text = struct(ll(programID(), localDateWithMilliseconds())) + "\n"
        + mainConcepts.xfullgrab();
        
      inputText("Save session as", voidfunc(S name) {
        sessions.put(or2(trim(name), "Unnamed Session") + " [" + localDateWithSeconds() + ", " + computerID() + ", OS: " + programID() + "]", text);
        triggerUpdate();
      });
    }));
  }
  void unvisualize2() { table = null; }
  
  void update() {
    if (atomicFlipVarToFalse(changed))
      dataToTable_uneditable(table, listToMapsWithSingleKey("Session Name", sortedKeys(sessions)));
  }
}