import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.table.DefaultTableModel;

public class TestSwing05 extends JPanel {
    private static final long serialVersionUID = 1L;

    private static final String CONNECT_BUTTON_TEXT = "接続";

    private static final String DISCONNECT_BUTTON_TEXT = "切断";

    private static final String LABEL_TEXT_NOT_CONNECTED = "未接続";

    private static final String LABEL_TEXT_CONNECTING = "接続中";

    private static final String LABEL_TEXT_CONNECTED = "接続済";

    private static final String LABEL_TEXT_DISCONNECTING = "切断中";

    private static final String LABEL_TEXT_ERROR = "エラー";

    private JButton connectButton = null;

    private JButton disconnectButton = null;

    private JLabel statusLabel = null;

    private JPanel panel = null;

    public TestSwing05() {
        // create component
        this.connectButton = new JButton(CONNECT_BUTTON_TEXT);
        this.connectButton.setEnabled(true);
        this.connectButton.addActionListener(new ConnectActionHandler());
        this.disconnectButton = new JButton(DISCONNECT_BUTTON_TEXT);
        this.disconnectButton.setEnabled(false);
        this.disconnectButton.addActionListener(new DisconnectActionHandler());
        this.statusLabel = new JLabel(LABEL_TEXT_NOT_CONNECTED);

        JPanel dbPanel = new JPanel();
        dbPanel.add(this.connectButton);
        dbPanel.add(this.disconnectButton);
        dbPanel.add(this.statusLabel);

        this.panel = new JPanel();
        this.panel.setLayout(new BoxLayout(this.panel, BoxLayout.Y_AXIS));
        this.panel.add(dbPanel);
        setLayout(new BorderLayout());
        add(this.panel, BorderLayout.EAST);
    }

    private class ConnectActionHandler implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            Thread connectThread = new ConnectThread();
            connectThread.start();
        }
    }

    private class ConnectThread extends Thread {
        public void run() {
            statusLabel.setText(LABEL_TEXT_CONNECTING);
            changeConnectTypeButtonEnabledSame(false);
            SwingUtilities.invokeLater(new Runnable() {
                public void run() {
                    connectDB();
                }
            });
        }
    }

    private void connectDB() {
        try {
            TestSwingDB testSwingDB = TestSwingMain.getTestSwingDB();
            testSwingDB.connect();
            this.statusLabel.setText(LABEL_TEXT_CONNECTED);
            changeConnectTypeButtonEnabled(true);
            TestSwing04 testSwing04 = TestSwingMain.getTestSwing04();
            testSwing04.setGetAllRecordsButtonEnabled(true);
            testSwing04.setInsertModifyDeleteButtonEnabled(false, false, false);
        } catch (TestSwingException testEx) {
            this.statusLabel.setText(LABEL_TEXT_ERROR);
            changeConnectTypeButtonEnabled(false);
        }
    }

    private class DisconnectActionHandler implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            Thread disconnectThread = new DisconnectThread();
            disconnectThread.start();
        }
    }

    private class DisconnectThread extends Thread {
        public void run() {
            statusLabel.setText(LABEL_TEXT_DISCONNECTING);
            changeConnectTypeButtonEnabledSame(false);
            SwingUtilities.invokeLater(new Runnable() {
                public void run() {
                    disconnectDB();
                }
            });
        }
    }

    private void disconnectDB() {
        try {
            TestSwingDB testSwingDB = TestSwingMain.getTestSwingDB();
            testSwingDB.disconnect();
            this.statusLabel.setText(LABEL_TEXT_NOT_CONNECTED);
            changeConnectTypeButtonEnabled(false);
            TestSwing04 testSwing04 = TestSwingMain.getTestSwing04();
            testSwing04.setGetAllRecordsButtonEnabled(false);
            testSwing04.setInsertModifyDeleteButtonEnabled(false, false, false);
            testSwing04.setStatusLabel(null);
            TestSwing02 testSwing02 = TestSwingMain.getTestSwing02();
            DefaultTableModel tableModel = testSwing02.getTableModel();
            while (tableModel.getRowCount() > 0) {
                tableModel.removeRow(0);
            }
            TestSwing03 testSwing03 = TestSwingMain.getTestSwing03();
            testSwing03.setDescriptionField(null);
            testSwing03.setUrlField(null);
        } catch (TestSwingException testEx) {
            this.statusLabel.setText(LABEL_TEXT_ERROR);
            changeConnectTypeButtonEnabled(true);
        }
    }

    private void changeConnectTypeButtonEnabled(boolean flg) {
        this.connectButton.setEnabled(!flg);
        this.disconnectButton.setEnabled(flg);
    }

    private void changeConnectTypeButtonEnabledSame(boolean flg) {
        this.connectButton.setEnabled(flg);
        this.disconnectButton.setEnabled(flg);
    }
}