!7

sclass SystemVersion extends DynTextArea {
  Int comp, compJavaX;
  
  void start {
    setText(padWithEmptyLines(centerPad("Checking...", 50), 10));
    
    thread {
      comp = compareTranspilationDateWithServer(creator());
      try {
        compJavaX = compareTranspilationDateWithServer(javax());
      } catch e {
        printException(e);
        compJavaX = -1;
      }
  
      setText(linesLL(
        "System identified as: " + linuxWindowsMac(),
        "Java version: " + javaVersion(),
        "Java directory: " + envJavaHome(),
        "JavaX version: " + javaxVersion(),
        "  On server: " + (compJavaX == null ? "Unknown" : compJavaX == 0 ? "SAME" : compJavaX < 0 ? "NEWER" : "OLDER (?)"),
        "Stefan's OS version: " + formatTranspilationDate(creator()),
        "  On server: " + (comp == null ? "Unknown" : comp == 0 ? "SAME" : comp < 0 ? "NEWER" : "OLDER (?)")
      );
    }
  }
  
  JComponent visualize() {
    ret centerAndSouth(super.visualize(),
      withMargin(jcenteredbuttons("Upgrade JavaX", disableAllButtonsWhileCalcing(r {
        setText("Upgrading JavaX...");
        runDependent(#1001639);
        dm_restartOS()
      }), "Upgrade Stefan's OS", r dm_restartOS)));
  }
}