cmpt213-a4/assignment4/src/cmpt213/assignment4/packagedeliveries/client/view/JavaSwingUI.java

package cmpt213.assignment4.packagedeliveries.client.view;

import cmpt213.assignment4.packagedeliveries.client.control.PackageDeliveriesTracker;
import cmpt213.assignment4.packagedeliveries.client.model.PackageInfo;
import com.privatejgoodies.common.base.SystemUtils;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.stream.Collectors;

public class JavaSwingUI implements ActionListener {
    private final PackageDeliveriesTracker pTracker = PackageDeliveriesTracker.getInstance();
    JFrame uiFrame;
    JPanel uiPanel;
    JScrollPane scrollView;
    PACKAGE_FILTER_OPTION option = PACKAGE_FILTER_OPTION.ALL;

    public void displayMainPage() {
        //pTracker.load();
//        curlGetCommand("/load");
        uiFrame = new JFrame("Package deliveries tracker");
        uiFrame.setSize(500, 500);
        uiFrame.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
        uiFrame.setLayout(new BoxLayout(uiFrame.getContentPane(), BoxLayout.Y_AXIS));
        uiFrame.addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent e) {
                //trigger the save operation at the webserver
                curlGetCommand("/exit");
                super.windowClosing(e);
                uiFrame.dispose();
            }
        });
        uiFrame.setVisible(true);
        dsplayOptionButtons();
        addButtons();
        setupScrollPane();
        refreshPackageList();
    }

    private void setupScrollPane() {
        uiPanel = new JPanel();
        scrollView = new JScrollPane(uiPanel);

        uiPanel.setLayout(new BoxLayout(uiPanel, BoxLayout.Y_AXIS));
        scrollView.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
        uiPanel.add(Box.createVerticalGlue());
        uiFrame.getContentPane().add(scrollView);
        uiFrame.pack();
    }

    private void displayPackages(ArrayList<PackageInfo> packages) {
        ArrayList<String> packageString = new ArrayList<>();
        if (packages != null) {
            for (PackageInfo p : packages) {
//            System.out.println(p.toString() + "---->  p");
                packageString.add(p.toString());
            }
        } else packageString.add("No packages to show");
        uiPanel.removeAll();
        uiPanel.setLayout(new BoxLayout(uiPanel, BoxLayout.Y_AXIS));
        scrollView.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
        uiPanel.add(Box.createVerticalGlue());
        uiFrame.getContentPane().add(scrollView);
        if (packageString.size() > 0 && packageString.get(0) != "No packages to show") {
            for (int i = 0; i < packages.size(); i++) {
                JPanel p = new JPanel();
                JTextPane pkgPane = new JTextPane();
                pkgPane.setEditable(false);
                pkgPane.setText(packageString.get(i));
                p.add(pkgPane);
                if (option == PACKAGE_FILTER_OPTION.ALL) {
                    JButton remove = new JButton();
                    int finalI = i;
                    int finalI2 = i;
                    remove.addActionListener(new ActionListener() {
                        @Override
                        public void actionPerformed(ActionEvent e) {
                            //pTracker.removePcakage(finalI);
                            curlPostCommand("/removePackage", packages.get(finalI2));
                            refreshPackageList();
                        }
                    });
                    remove.setText("Remove");
                    p.add(remove);

                    JCheckBox delivered = new JCheckBox("Delivered?");
                    delivered.setBounds(100, 100, 50, 50);
                    Boolean deliveredStatus = packageString.get(i).contains("Delivered? yes");
                    delivered.setSelected(deliveredStatus);
                    int finalI1 = i;
                    delivered.addActionListener(new ActionListener() {
                        @Override
                        public void actionPerformed(ActionEvent e) {
                            delivered.setSelected(true);
                            curlPostCommand("/markPackageAsDelivered", packages.get(finalI2));
                            refreshPackageList();
                        }
                    });
                    p.add(delivered);
                }
                uiPanel.add(p);
            }
        } else {
            JPanel p = new JPanel();
            JTextPane pkgPane = new JTextPane();
            pkgPane.setEditable(false);
            pkgPane.setText("No packages to show");
            p.add(pkgPane);
            uiPanel.add(p);
        }

        uiFrame.validate();
        uiFrame.pack();
    }

    private void addButtons() {
        JButton add = new JButton("Add a package");
        JPanel addPanel = new JPanel();
        addPanel.setLayout(new BoxLayout(addPanel, BoxLayout.X_AXIS));
        addPanel.add(add);
        addPanel.setPreferredSize(new Dimension(500, 50));
        uiFrame.add(addPanel);
        add.addActionListener(this);
    }

    private void dsplayOptionButtons() {
        JButton btnAll = new JButton("All");
        JButton btnOverdue = new JButton("Overdue");
        JButton btnUpcoming = new JButton("Upcoming");

        btnAll.addActionListener(this);
        btnOverdue.addActionListener(this);
        btnUpcoming.addActionListener(this);

        JPanel btnPanel = new JPanel();
        btnPanel.setLayout(new BoxLayout(btnPanel, BoxLayout.X_AXIS));
        btnPanel.add(btnAll);
        btnPanel.add(btnOverdue);
        btnPanel.add(btnUpcoming);
        btnPanel.setPreferredSize(new Dimension(500, 50));
        uiFrame.add(btnPanel);
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        String actionString = e.getActionCommand();
        switch (actionString) {
            case "Add a package":
                addPackage();
                break;
            case "All":
                option = PACKAGE_FILTER_OPTION.ALL;
                refreshPackageList();
                break;
            case "Overdue":
                option = PACKAGE_FILTER_OPTION.OVERDUE;
                refreshPackageList();
                break;
            case "Upcoming":
                option = PACKAGE_FILTER_OPTION.UPCOMING;
                refreshPackageList();
                break;
        }

    }

    private void addPackage() {
        new Input(uiFrame);
        refreshPackageList();
    }

    private void refreshPackageList() {
        switch (option) {
            case ALL:
                ArrayList<PackageInfo> allPackages = curlGetCommand("/listAll");
//                System.out.println(allPackages + " allPackages -> refreshPackageList ALL");
                displayPackages(allPackages);
                break;
            case OVERDUE:
                ArrayList<PackageInfo> overDuePkg = curlGetCommand("/listOverduePackage");
//                System.out.println(overDuePkg + " overDuePkg -> refreshPackageList OVERDUE");
                displayPackages(overDuePkg);
                break;
            case UPCOMING:
                ArrayList<PackageInfo> upcomingPkg = curlGetCommand("/listUpcomingPackage");
//                System.out.println(upcomingPkg + " upcomingPkg -> refreshPackageList UPCOMING");
                displayPackages(upcomingPkg);
                break;
        }
    }

    private ArrayList<PackageInfo> curlGetCommand(String operation) {
        String command = "curl -X " + "GET" + " localhost:8080" + operation;
        System.out.println(command + " ==> curlGetCommand");
        try {
            Process process = Runtime.getRuntime().exec(command);
            InputStream stdOutput = process.getInputStream();
            String allPkg = new BufferedReader(
                    new InputStreamReader(stdOutput, StandardCharsets.UTF_8))
                    .lines()
                    .collect(Collectors.joining("\n"));
            return pTracker.deserializePackageString(allPkg);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    private void curlPostCommand(String operation, PackageInfo packageInfo) {
        String packageString = pTracker.serializePackage(packageInfo);
        String command = null;
        if (SystemUtils.IS_OS_WINDOWS) {
            System.out.println(System.getProperty("os.name").toLowerCase());
            packageString=packageString.replace("\"","\\\"");
            command = "curl -i -H \"Content-Type: application/json\" -X " + "POST -d " + packageString + " localhost:8080" + operation;
            System.out.println(command + " ==> curlPostCommand");
        }
        else if(SystemUtils.IS_OS_MAC) {
            System.out.println(System.getProperty("os.name").toLowerCase());
            command = "curl -i -H Content-Type: application/json -X POST -d " + packageString + " localhost:8080" + operation;
        }
        try {
            Process process = Runtime.getRuntime().exec(command);
            InputStream stdOutput = process.getInputStream();
            String allPkg = new BufferedReader(
                    new InputStreamReader(stdOutput, StandardCharsets.UTF_8))
                    .lines()
                    .collect(Collectors.joining("\n"));
            return;
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    enum PACKAGE_FILTER_OPTION {ALL, OVERDUE, UPCOMING}
}