Minecraft-Server-Launcher/src/main/java/net/knarcraft/minecraftserverlauncher/userinterface/MessageHandler.java

package net.knarcraft.minecraftserverlauncher.userinterface;

import net.knarcraft.minecraftserverlauncher.Main;
import net.knarcraft.minecraftserverlauncher.utility.CommonFunctions;

import javax.swing.*;
import java.io.BufferedWriter;
import java.io.File;
import java.io.IOException;
import java.io.OutputStreamWriter;

/**
 * This class handles displaying messages to the user
 */
public abstract class MessageHandler implements GUI {

    private final boolean silent;
    private final BufferedWriter writer;
    private final String logFile = Main.getApplicationWorkDirectory() + File.separator + "latestrun.log";

    /***
     * Initializes a new message handler
     *
     * @param silent <p>Whether to print to cli instead of showing a GUI element</p>
     */
    public MessageHandler(boolean silent) {
        this.silent = silent;
        this.writer = new BufferedWriter(new OutputStreamWriter(System.out));
    }

    @Override
    public void logMessage(String message) {
        try {
            CommonFunctions.appendFile(logFile, "[Info]: " + message);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void logError(String message) {
        try {
            CommonFunctions.appendFile(logFile, "[Error]: " + message);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void showError(String title, String message) {
        if (silent) {
            try {
                writer.write("[Error]: ");
                writer.write(message);
                writer.newLine();
                writer.flush();
            } catch (IOException e) {
                System.out.println(message);
            }
        } else {
            showJOptionPane(title, message, JOptionPane.ERROR_MESSAGE);
        }
        logError(message);
    }

    @Override
    public void showError(String message) {
        showError("Error", message);
    }

    @Override
    public void showMessage(String title, String message) {
        if (silent) {
            try {
                writer.write("[Info]: " + message);
                writer.newLine();
                writer.flush();
            } catch (IOException e) {
                System.out.println(message);
            }
        } else {
            showJOptionPane(title, message, JOptionPane.INFORMATION_MESSAGE);
        }
        logMessage(message);
    }

    @Override
    public void showMessage(String message) {
        showMessage("Info", message);
    }

    /**
     * Shows a JOptionPane
     *
     * @param title    <p>The title of the pane</p>
     * @param message  <p>The message of the pane</p>
     * @param paneType <p>The type of the pane</p>
     */
    private void showJOptionPane(String title, String message, int paneType) {
        JOptionPane.showMessageDialog(null, message, title, paneType);
    }
}