StarboardCreatorCommand.java

package io.github.theglitch76.glitchbot.command;

import com.jagrosh.jdautilities.command.Command;
import com.jagrosh.jdautilities.command.CommandEvent;
import net.dv8tion.jda.core.Permission;
import net.dv8tion.jda.core.entities.TextChannel;
import net.dv8tion.jda.core.exceptions.InsufficientPermissionException;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Collections;
import java.util.Properties;

public class StarboardCreatorCommand extends Command {

    public StarboardCreatorCommand() {
        this.name = "createstarboard";
        this.aliases = new String[]{"createboard", "setupboard", "setupstarboard", "setupstar"};
        this.help = "Use this command in any category to create the #starboard channel.";
    }

    @Override
    protected void execute(CommandEvent event) {
        //TODO: Make property management a util
        Properties properties = new Properties();
        File file = new File("data.dat");
        TextChannel sendingChannel = event.getTextChannel();

        try {
            //Create the file if it doesn't exist, and load it.
            if(!file.exists()) file.createNewFile();
            properties.load(new FileInputStream(file));

            //Attempt to get the properties. Not human friendly name so users don't try to modify the data.
            String channelID = properties.getProperty("pP11kFs9");

            //If it already exists, alert the user and get the channel in question.
            if(channelID != null) {
                event.getChannel().sendMessage("A starboard channel is already registered. GlitchBot will attempt"+
                        " to re-create the channel.").complete();
                TextChannel channel = event.getJDA().getTextChannelById(channelID);

                //If the channel doesn't exist, delete it and log who asked to recreate it in the audit log.
                if(channel != null) {
                    try {
                        channel.delete().reason("Attempting to recreate #starboard for "
                                + event.getAuthor().getName() + "#" + event.getAuthor().getDiscriminator()).complete();
                    }

                    //We don't have enough permissions; alert the user and return.
                    catch (InsufficientPermissionException e) {
                        sendingChannel.sendMessage("Failed to delete #starboard! Required permission: MANAGE_CHANNEL."+
                                " Aborting...").complete();
                        return;
                    }
                } //We can fall through because we know the channel doesn't exist anymore
            }
            sendingChannel.sendMessage("Creating channel...").complete();
            //Now that we know there isn't another #starboard, we can create the channel
            //TODO: Everything else is safe (as far as I know) for one server *except* for this section.
            event.getGuild().getController().createTextChannel("starboard").addPermissionOverride(
                    event.getGuild().getPublicRole(), null, Collections.singleton(Permission.MESSAGE_WRITE))
                    .setTopic("A place where users can immortalize messages posted by other users using either :star:," +
                            " :star2:, or :100:").complete();
            sendingChannel.sendMessage("Created!").complete();
            properties.setProperty("pP11kFs9", event.getGuild().getTextChannelsByName("starboard",
                    false).get(0).getId());
            properties.store(new FileOutputStream(file), "DO NOT MODIFY THIS FILE!");
        } catch(IOException e) {
            sendingChannel.sendMessage("An IOException occurred (" + e.getLocalizedMessage() + ")" + "and the " +
                    "bot could not create the channel.").complete();
        }



    }
}