/*
    * Copyright 2020-2022 The OSHI Project Contributors
    * SPDX-License-Identifier: MIT
    */
   package oshi.demo;
   
   import static javax.swing.JFrame.EXIT_ON_CLOSE;
   
   import java.awt.BorderLayout;
  import java.awt.Container;
  
  import javax.swing.JButton;
  import javax.swing.JFrame;
  import javax.swing.JMenuBar;
  import javax.swing.SwingUtilities;
  import javax.swing.WindowConstants;
  
  import oshi.SystemInfo;
  import oshi.demo.gui.Config;
  import oshi.demo.gui.FileStorePanel;
  import oshi.demo.gui.InterfacePanel;
  import oshi.demo.gui.MemoryPanel;
  import oshi.demo.gui.OsHwTextPanel;
  import oshi.demo.gui.OshiJPanel;
  import oshi.demo.gui.ProcessPanel;
  import oshi.demo.gui.ProcessorPanel;
  import oshi.demo.gui.UsbPanel;
  
  /**
   * Basic Swing class to demonstrate potential uses for OSHI in a monitoring GUI. Not ready for production use and
   * intended as inspiration/examples.
   */
  public class OshiGui {
  
      private JFrame mainFrame;
      private JButton jMenu;
  
      private SystemInfo si = new SystemInfo();
  
      public static void main(String[] args) {
          OshiGui gui = new OshiGui();
          gui.init();
          SwingUtilities.invokeLater(gui::setVisible);
      }
  
      private void setVisible() {
          mainFrame.setVisible(true);
          mainFrame.setDefaultCloseOperation(EXIT_ON_CLOSE);
          jMenu.doClick();
      }
  
      private void init() {
          // Create the external frame
          mainFrame = new JFrame(Config.GUI_TITLE);
          mainFrame.setSize(Config.GUI_WIDTH, Config.GUI_HEIGHT);
          mainFrame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
          mainFrame.setResizable(true);
          mainFrame.setLocationByPlatform(true);
          mainFrame.setLayout(new BorderLayout());
          // Add a menu bar
          JMenuBar menuBar = new JMenuBar();
          mainFrame.setJMenuBar(menuBar);
          // Assign the first menu option to be clicked on visibility
          jMenu = getJMenu("OS & HW Info", 'O', "Hardware & OS Summary", new OsHwTextPanel(si));
          menuBar.add(jMenu);
          // Add later menu items
          menuBar.add(getJMenu("Memory", 'M', "Memory Summary", new MemoryPanel(si)));
          menuBar.add(getJMenu("CPU", 'C', "CPU Usage", new ProcessorPanel(si)));
          menuBar.add(getJMenu("FileStores", 'F', "FileStore Usage", new FileStorePanel(si)));
          menuBar.add(getJMenu("Processes", 'P', "Processes", new ProcessPanel(si)));
          menuBar.add(getJMenu("USB Devices", 'U', "USB Device list", new UsbPanel(si)));
          menuBar.add(getJMenu("Network", 'N', "Network Params and Interfaces", new InterfacePanel(si)));
      }
  
      private JButton getJMenu(String title, char mnemonic, String toolTip, OshiJPanel panel) {
          JButton button = new JButton(title);
          button.setMnemonic(mnemonic);
          button.setToolTipText(toolTip);
          button.addActionListener(e -> {
              Container contentPane = this.mainFrame.getContentPane();
              if (contentPane.getComponents().length <= 0 || contentPane.getComponent(0) != panel) {
                  resetMainGui();
                  this.mainFrame.getContentPane().add(panel);
                  refreshMainGui();
              }
          });
  
          return button;
      }
  
      private void resetMainGui() {
          this.mainFrame.getContentPane().removeAll();
      }
  
      private void refreshMainGui() {
          this.mainFrame.revalidate();
          this.mainFrame.repaint();
      }
  }