Add coin-flip with random utils class and allow verbosity as arg

src/main/java/wtf/beatrice/hidekobot/HidekoBot.java

@@ -5,9 +5,12 @@ import net.dv8tion.jda.api.JDABuilder;
 import net.dv8tion.jda.api.entities.Activity;
 import net.dv8tion.jda.api.requests.GatewayIntent;
 import wtf.beatrice.hidekobot.listeners.MessageListener;
+import wtf.beatrice.hidekobot.listeners.MessageLogger;
 import wtf.beatrice.hidekobot.utils.Logger;
 
 import javax.security.auth.login.LoginException;
+import java.util.ArrayList;
+import java.util.List;
 
 public class HidekoBot
 {
@@ -16,6 +19,8 @@ public class HidekoBot
     private static String botUserId;
     private static final String version = "0.0.1"; // we should probably find a way to make this consistent with Maven
 
+    private static JDA jda;
+
 
     // create a logger instance for ease of use
     private static final Logger logger = new Logger(HidekoBot.class);
@@ -30,20 +35,30 @@ public class HidekoBot
             return;
         }
 
+        // load token from args
         botToken = args[0];
 
-        JDABuilder jdaBuilder;
-        JDA jda;
+        // if there are more than 1 args, then iterate through them because we have additional things to do
+        if(args.length > 1) {
+            List<String> argsList = new ArrayList<>();
+            for(int i = 1; i < args.length; i++)
+            { argsList.add(args[i]); }
+
+            if(argsList.contains("verbose")) Configuration.setVerbose(true);
+        }
 
         try
         {
             // try to create the bot object and authenticate it with discord.
-            jdaBuilder = JDABuilder.createDefault(botToken);
+            JDABuilder jdaBuilder = JDABuilder.createDefault(botToken);
             jdaBuilder.setActivity(Activity.playing("the piano"));
 
-            jdaBuilder.enableIntents(GatewayIntent.MESSAGE_CONTENT,
+            // enable necessary intents.
+            jdaBuilder.enableIntents(
+                    GatewayIntent.MESSAGE_CONTENT,
                     GatewayIntent.DIRECT_MESSAGES,
-                    GatewayIntent.GUILD_MESSAGES);
+                    GatewayIntent.GUILD_MESSAGES
+            );
 
             jda = jdaBuilder.build().awaitReady();
         } catch (LoginException | InterruptedException e)
@@ -56,6 +71,10 @@ public class HidekoBot
         botUserId = jda.getSelfUser().getId();
         standardInviteLink = standardInviteLink.replace("%userid%", botUserId);
 
+        // register listeners
+        jda.addEventListener(new MessageListener());
+        if(Configuration.isVerbose()) jda.addEventListener(new MessageLogger());
+
         // print the bot logo.
         logger.log("Ready!\n\n" + logger.getLogo() + "\nv" + version + " - bot is ready!\n", 2);
 
@@ -63,9 +82,10 @@ public class HidekoBot
         logger.log("Bot User ID: " + botUserId, 4);
         logger.log("Invite Link: " + standardInviteLink, 5);
 
-        // register listeners
-        jda.addEventListener(new MessageListener());
-
+    }
+    public static JDA getAPI()
+    {
+        return jda;
     }
 
 }

src/main/java/wtf/beatrice/hidekobot/listeners/MessageListener.java

@@ -4,7 +4,9 @@ import net.dv8tion.jda.api.entities.*;
 import net.dv8tion.jda.api.events.message.MessageReceivedEvent;
 import net.dv8tion.jda.api.hooks.ListenerAdapter;
 import org.jetbrains.annotations.NotNull;
+import wtf.beatrice.hidekobot.Configuration;
 import wtf.beatrice.hidekobot.utils.Logger;
+import wtf.beatrice.hidekobot.utils.RandomUtil;
 
 public class MessageListener extends ListenerAdapter
 {
@@ -14,11 +16,28 @@ public class MessageListener extends ListenerAdapter
     @Override
     public void onMessageReceived(@NotNull MessageReceivedEvent event)
     {
+
         if(event.getMessage().getContentDisplay().equalsIgnoreCase("ping"))
         {
             MessageChannel channel = event.getChannel();
             channel.sendMessage("Pong!").queue();
         }
+
+        if(event.getMessage().getContentDisplay().equalsIgnoreCase("flip a coin"))
+        {
+            MessageChannel channel = event.getChannel();
+
+            int rand = RandomUtil.getRandomNumber(0, 1);
+            String msg;
+
+            if(rand == 1)
+            {
+                msg = ":coin: It's **Heads**!";
+            } else {
+                msg = "It's **Tails**! :coin:";
             }
 
+            channel.sendMessage(msg).queue();
+        }
+    }
 }

src/main/java/wtf/beatrice/hidekobot/utils/RandomUtil.java

@@ -1,2 +1,29 @@
-package wtf.beatrice.hidekobot.utils;public class RandomUtil {
+package wtf.beatrice.hidekobot.utils;
+
+import java.util.Random;
+
+public class RandomUtil
+{
+    private static final Random random = new Random();
+
+    public static int getRandomNumber(int min, int max)
+    {
+        if(min == max) return min; // dumbass
+        if(min > max) // swap em
+        {
+            min = min - max;
+            max = min + max;
+            min = max - min;
+        }
+
+
+        // find our range of randomness (eg. 5 -> 8 = 4), add +1 since we want to be inclusive at both sides
+        int difference = (max - min) + 1;
+
+        // find a number between 0 and our range (eg. 5 -> 8 = 0 -> 3)
+        int randomTemp = random.nextInt(difference);
+
+        // add the minimum value, so we are sure to be in the original range (0->5, 1->6, 2->7, 3->8)
+        return randomTemp + min;
+    }
 }