UHH why would you troll

13 files changed, 776 insertions, 15 deletions

diff --git a/src/main/java/kr/syeyoung/dungeonsguide/RichPresenceManager.java b/src/main/java/kr/syeyoung/dungeonsguide/RichPresenceManager.java
index 422d15e1..641522a6 100644
--- a/src/main/java/kr/syeyoung/dungeonsguide/RichPresenceManager.java
+++ b/src/main/java/kr/syeyoung/dungeonsguide/RichPresenceManager.java
@@ -6,18 +6,23 @@ import kr.syeyoung.dungeonsguide.features.FeatureRegistry;
 import kr.syeyoung.dungeonsguide.party.PartyManager;
 import kr.syeyoung.dungeonsguide.stomp.StompHeader;
 import kr.syeyoung.dungeonsguide.stomp.StompPayload;
-import net.arikia.dev.drpc.DiscordEventHandlers;
-import net.arikia.dev.drpc.DiscordRPC;
-import net.arikia.dev.drpc.DiscordRichPresence;
-import net.arikia.dev.drpc.DiscordUser;
+import net.arikia.dev.drpc.*;
 import net.arikia.dev.drpc.callbacks.*;
 import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
 import net.minecraftforge.fml.common.gameevent.TickEvent;
 import org.json.JSONObject;
 
-public class RichPresenceManager implements JoinRequestCallback, JoinGameCallback, ErroredCallback, DisconnectedCallback {
+import java.io.*;
+import java.net.URL;
+
+public class RichPresenceManager implements JoinRequestCallback, JoinGameCallback, ErroredCallback, DisconnectedCallback, Runnable {
     public static RichPresenceManager INSTANCE = new RichPresenceManager();
 
+    public RichPresenceManager() {
+        setup();
+        new Thread(this).start();
+        Runtime.getRuntime().addShutdownHook(new Thread(DiscordRPC::discordShutdown));
+    }
     public void setup() {
         DiscordRPC.discordInitialize("816298079732498473", new DiscordEventHandlers.Builder()
                 .setReadyEventHandler(new ReadyCallback() {
@@ -36,7 +41,6 @@ public class RichPresenceManager implements JoinRequestCallback, JoinGameCallbac
 
 
     public void updatePresence() {
-        nextUpdate= System.currentTimeMillis() + 10000L;
         if (!skyblockStatus.isOnHypixel() || !FeatureRegistry.ADVANCED_RICHPRESENCE.isEnabled()) {
             DiscordRPC.discordClearPresence();
         } else {
@@ -67,17 +71,9 @@ public class RichPresenceManager implements JoinRequestCallback, JoinGameCallbac
     }
 
     private String lastLoc = "";
-    private long nextUpdate = System.currentTimeMillis() + 10000L;
+
     @SubscribeEvent
     public void tick(TickEvent.ClientTickEvent clientTickEvent) {
-        try {
-            if (skyblockStatus.isOnSkyblock() && !lastLoc.equalsIgnoreCase(skyblockStatus.getDungeonName())) {
-                lastLoc = skyblockStatus.getDungeonName()+"";
-                updatePresence();
-            } else if (nextUpdate < System.currentTimeMillis()) {
-                updatePresence();
-            }
-        } catch (Exception e) {e.printStackTrace();}
     }
 
     @Override
@@ -99,4 +95,17 @@ public class RichPresenceManager implements JoinRequestCallback, JoinGameCallbac
         System.out.println(user.username+" wants to join");
         DiscordRPC.discordRespond(user.userId, DiscordRPC.DiscordReply.YES);
     }
+
+    @Override
+    public void run() {
+        while(true) {
+            try {
+                DiscordRPC.discordRunCallbacks();
+                if (skyblockStatus.isOnSkyblock() && !lastLoc.equalsIgnoreCase(skyblockStatus.getDungeonName())) {
+                    lastLoc = skyblockStatus.getDungeonName()+"";
+                }
+                updatePresence();
+            } catch (Exception e) {e.printStackTrace();}
+        }
+    }
 }
diff --git a/src/main/java/kr/syeyoung/dungeonsguide/party/PartyManager.java b/src/main/java/kr/syeyoung/dungeonsguide/party/PartyManager.java
index 08492ae8..e3c3ff49 100644
--- a/src/main/java/kr/syeyoung/dungeonsguide/party/PartyManager.java
+++ b/src/main/java/kr/syeyoung/dungeonsguide/party/PartyManager.java
@@ -148,6 +148,9 @@ public class PartyManager implements StompMessageHandler {
         } else if (str.startsWith("§cYou are not currently in a party.§r")) {
             members.clear();
             setPartyID(null);
+        } else if (str.startsWith("§cYou are not in a party!§r")) {
+            members.clear();
+            setPartyID(null);
         } else if (str.startsWith("§eParty ") && str.contains(":")) {
             String playerNames = TextUtils.stripColor(str.split(":")[1]);
             for (String s : playerNames.split(" ")) {
@@ -163,6 +166,8 @@ public class PartyManager implements StompMessageHandler {
             RichPresenceManager.INSTANCE.updatePresence();
         } else if (str.equals("§cCouldn't find a player with that name!§r")) {
             canInvite = true;
+        } else if (str.equals("§cYou cannot invite that player since they're not online.")) {
+            canInvite = true;
         } else if (str.endsWith("§aenabled All Invite§r")) {
             canInvite = true;
         } else if (str.endsWith("§cdisabled All Invite§r")) {
diff --git a/src/main/java/net/arikia/dev/drpc/DiscordEventHandlers.java b/src/main/java/net/arikia/dev/drpc/DiscordEventHandlers.java
new file mode 100644
index 00000000..3e5ccbbd
--- /dev/null
+++ b/src/main/java/net/arikia/dev/drpc/DiscordEventHandlers.java
@@ -0,0 +1,90 @@
+package net.arikia.dev.drpc;
+
+import com.sun.jna.Structure;
+import net.arikia.dev.drpc.callbacks.*;
+
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * @author Nicolas "Vatuu" Adamoglou
+ * @version 1.5.1
+ * <p>
+ * Object containing references to all event handlers registered. No callbacks are necessary,
+ * every event handler is optional. Non-assigned handlers are being ignored.
+ */
+public class DiscordEventHandlers extends Structure {
+
+	/**
+	 * Callback called when Discord-RPC was initialized successfully.
+	 */
+	public ReadyCallback ready;
+	/**
+	 * Callback called when the Discord connection was disconnected.
+	 */
+	public DisconnectedCallback disconnected;
+	/**
+	 * Callback called when a Discord error occurred.
+	 */
+	public ErroredCallback errored;
+	/**
+	 * Callback called when the player joins the game.
+	 */
+	public JoinGameCallback joinGame;
+	/**
+	 * Callback called when the player spectates a game.
+	 */
+	public SpectateGameCallback spectateGame;
+	/**
+	 * Callback called when a join request is received.
+	 */
+	public JoinRequestCallback joinRequest;
+
+	@Override
+	public List<String> getFieldOrder() {
+		return Arrays.asList("ready", "disconnected", "errored", "joinGame", "spectateGame", "joinRequest");
+	}
+
+	public static class Builder {
+
+		DiscordEventHandlers h;
+
+		public Builder() {
+			h = new DiscordEventHandlers();
+		}
+
+		public Builder setReadyEventHandler(ReadyCallback r) {
+			h.ready = r;
+			return this;
+		}
+
+		public Builder setDisconnectedEventHandler(DisconnectedCallback d) {
+			h.disconnected = d;
+			return this;
+		}
+
+		public Builder setErroredEventHandler(ErroredCallback e) {
+			h.errored = e;
+			return this;
+		}
+
+		public Builder setJoinGameEventHandler(JoinGameCallback j) {
+			h.joinGame = j;
+			return this;
+		}
+
+		public Builder setSpectateGameEventHandler(SpectateGameCallback s) {
+			h.spectateGame = s;
+			return this;
+		}
+
+		public Builder setJoinRequestEventHandler(JoinRequestCallback j) {
+			h.joinRequest = j;
+			return this;
+		}
+
+		public DiscordEventHandlers build() {
+			return h;
+		}
+	}
+}
diff --git a/src/main/java/net/arikia/dev/drpc/DiscordRPC.java b/src/main/java/net/arikia/dev/drpc/DiscordRPC.java
new file mode 100644
index 00000000..b16974ec
--- /dev/null
+++ b/src/main/java/net/arikia/dev/drpc/DiscordRPC.java
@@ -0,0 +1,234 @@
+package net.arikia.dev.drpc;
+
+import com.sun.jna.Library;
+import com.sun.jna.Native;
+
+import java.io.*;
+
+/**
+ * @author Nicolas "Vatuu" Adamoglou
+ * @version 1.5.1
+ * <p>
+ * Java Wrapper of the Discord-RPC Library for Discord Rich Presence.
+ */
+public final class DiscordRPC {
+
+	//DLL-Version for Update Check (soon).
+	private static final String DLL_VERSION = "3.4.0";
+	private static final String LIB_VERSION = "1.6.2";
+
+	static {
+		loadDLL();
+	}
+
+	/**
+	 * Method to initialize the Discord-RPC.
+	 *
+	 * @param applicationId ApplicationID/ClientID
+	 * @param handlers      EventHandlers
+	 * @param autoRegister  AutoRegister
+	 */
+	public static void discordInitialize(String applicationId, DiscordEventHandlers handlers, boolean autoRegister) {
+		DLL.INSTANCE.Discord_Initialize(applicationId, handlers, autoRegister ? 1 : 0, null);
+	}
+
+	/**
+	 * Method to register the executable of the application/game.
+	 * Only applicable when autoRegister in discordInitialize is false.
+	 *
+	 * @param applicationId ApplicationID/ClientID
+	 * @param command       Launch Command of the application/game.
+	 */
+	public static void discordRegister(String applicationId, String command) {
+		DLL.INSTANCE.Discord_Register(applicationId, command);
+	}
+
+	/**
+	 * Method to initialize the Discord-RPC within a Steam Application.
+	 *
+	 * @param applicationId ApplicationID/ClientID
+	 * @param handlers      EventHandlers
+	 * @param autoRegister  AutoRegister
+	 * @param steamId       SteamAppID
+	 * @see DiscordEventHandlers
+	 */
+	public static void discordInitialize(String applicationId, DiscordEventHandlers handlers, boolean autoRegister, String steamId) {
+		DLL.INSTANCE.Discord_Initialize(applicationId, handlers, autoRegister ? 1 : 0, steamId);
+	}
+
+	/**
+	 * Method to register the Steam-Executable of the application/game.
+	 * Only applicable when autoRegister in discordInitializeSteam is false.
+	 *
+	 * @param applicationId ApplicationID/ClientID
+	 * @param steamId       SteamID of the application/game.
+	 */
+	public static void discordRegisterSteam(String applicationId, String steamId) {
+		DLL.INSTANCE.Discord_RegisterSteamGame(applicationId, steamId);
+	}
+
+	/**
+	 * Method to update the registered EventHandlers, after the initialization was
+	 * already called.
+	 *
+	 * @param handlers DiscordEventHandler object with updated callbacks.
+	 */
+	public static void discordUpdateEventHandlers(DiscordEventHandlers handlers) {
+		DLL.INSTANCE.Discord_UpdateHandlers(handlers);
+	}
+
+	/**
+	 * Method to shutdown the Discord-RPC from within the application.
+	 */
+	public static void discordShutdown() {
+		DLL.INSTANCE.Discord_Shutdown();
+	}
+
+	/**
+	 * Method to call Callbacks from within the library.
+	 * Must be called periodically.
+	 */
+	public static void discordRunCallbacks() {
+		DLL.INSTANCE.Discord_RunCallbacks();
+	}
+
+	/**
+	 * Method to update the DiscordRichPresence of the client.
+	 *
+	 * @param presence Instance of DiscordRichPresence
+	 * @see DiscordRichPresence
+	 */
+	public static void discordUpdatePresence(DiscordRichPresence presence) {
+		DLL.INSTANCE.Discord_UpdatePresence(presence);
+	}
+
+	/**
+	 * Method to clear(and therefor hide) the DiscordRichPresence until a new
+	 * presence is applied.
+	 */
+	public static void discordClearPresence() {
+		DLL.INSTANCE.Discord_ClearPresence();
+	}
+
+	/**
+	 * Method to respond to Join/Spectate Callback.
+	 *
+	 * @param userId UserID of the user to respond to.
+	 * @param reply  DiscordReply to request.
+	 * @see DiscordReply
+	 */
+	public static void discordRespond(String userId, DiscordReply reply) {
+		DLL.INSTANCE.Discord_Respond(userId, reply.reply);
+	}
+
+	//Load DLL depending on the user's architecture.
+	private static void loadDLL() {
+		String name = System.mapLibraryName("discord-rpc");
+		OSUtil osUtil = new OSUtil();
+		String finalPath;
+		String dir;
+
+		if (osUtil.isMac()) {
+			dir = "darwin";
+		} else if (osUtil.isWindows()) {
+			boolean is64bit = System.getProperty("sun.arch.data.model").equals("64");
+			dir = (is64bit ? "win-x64" : "win-x86");
+		} else {
+			dir = "linux";
+		}
+
+		finalPath = "/" + dir + "/" + name;
+
+		try {
+			File f = File.createTempFile("drpc", name);
+
+			try (InputStream in = DiscordRPC.class.getResourceAsStream(finalPath); OutputStream out = openOutputStream(f)) {
+				copyFile(in, out);
+				f.deleteOnExit();
+			} catch (IOException e) {
+				e.printStackTrace();
+			}
+
+			System.load(f.getAbsolutePath());
+		} catch(Exception e) {
+			e.printStackTrace();
+		}
+	}
+
+	private static void copyFile(final InputStream input, final OutputStream output) throws IOException {
+		byte[] buffer = new byte[1024 * 4];
+		int n;
+		while (-1 != (n = input.read(buffer))) {
+			output.write(buffer, 0, n);
+		}
+	}
+
+	private static FileOutputStream openOutputStream(final File file) throws IOException {
+		if (file.exists()) {
+			if (file.isDirectory()) {
+				throw new IOException("File '" + file + "' exists but is a directory");
+			}
+			if (!file.canWrite()) {
+				throw new IOException("File '" + file + "' cannot be written to");
+			}
+		} else {
+			final File parent = file.getParentFile();
+			if (parent != null) {
+				if (!parent.mkdirs() && !parent.isDirectory()) {
+					throw new IOException("Directory '" + parent + "' could not be created");
+				}
+			}
+		}
+		return new FileOutputStream(file);
+	}
+
+	//------------------------ Taken from apache commons ------------------------------//
+
+	/**
+	 * Enum containing reply codes for join request events.
+	 *
+	 * @see net.arikia.dev.drpc.callbacks.JoinRequestCallback
+	 */
+	public enum DiscordReply {
+		/**
+		 * Denies the join request immediately.
+		 * Currently behaving the same way like DiscordReply.IGNORE.
+		 */
+		NO(0),
+		/**
+		 * Accepts the join request, requesting player received a JoinGameCallback.
+		 *
+		 * @see net.arikia.dev.drpc.callbacks.JoinGameCallback
+		 */
+		YES(1),
+		/**
+		 * Denies the join request by letting it time out(10s).
+		 */
+		IGNORE(2);
+
+		/**
+		 * Integer reply code send to Discord.
+		 */
+		public final int reply;
+
+		DiscordReply(int reply) {
+			this.reply = reply;
+		}
+	}
+
+	//JNA Interface
+	private interface DLL extends Library {
+		//DLL INSTANCE = Native.load("discord-rpc", DLL.class);
+		DLL INSTANCE = Native.loadLibrary("discord-rpc", DLL.class);
+
+		void Discord_Initialize(String applicationId, DiscordEventHandlers handlers, int autoRegister, String optionalSteamId);
+		void Discord_Register(String applicationId, String command);
+		void Discord_RegisterSteamGame(String applicationId, String steamId);
+		void Discord_UpdateHandlers(DiscordEventHandlers handlers);
+		void Discord_Shutdown();
+		void Discord_RunCallbacks();
+		void Discord_UpdatePresence(DiscordRichPresence presence);
+		void Discord_ClearPresence();
+		void Discord_Respond(String userId, int reply);
+	}
+}
diff --git a/src/main/java/net/arikia/dev/drpc/DiscordRichPresence.java b/src/main/java/net/arikia/dev/drpc/DiscordRichPresence.java
new file mode 100644
index 00000000..d45c0a63
--- /dev/null
+++ b/src/main/java/net/arikia/dev/drpc/DiscordRichPresence.java
@@ -0,0 +1,232 @@
+package net.arikia.dev.drpc;
+
+import com.sun.jna.Structure;
+
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * @author Nicolas "Vatuu" Adamoglou
+ * @version 1.5.1
+ */
+public class DiscordRichPresence extends Structure {
+
+	/**
+	 * State of the player's current party.
+	 */
+	public String state;
+	/**
+	 * Details to the current game-session of the player.
+	 */
+	public String details;
+	/**
+	 * Unix timestamp for the start of the game
+	 */
+	public long startTimestamp;
+	/**
+	 * Unix timestamp for when the game will end
+	 */
+	public long endTimestamp;
+	/**
+	 * Name of the uploaded image for the large profile artwork.
+	 */
+	public String largeImageKey;
+	/**
+	 * Tooltip for the largeImageKey
+	 */
+	public String largeImageText;
+	/**
+	 * Name of the uploaded image for the small profile artwork.
+	 */
+	public String smallImageKey;
+	/**
+	 * Tooltip for the smallImageKey
+	 */
+	public String smallImageText;
+	/**
+	 * Id of the player's party, lobby, or group.
+	 */
+	public String partyId;
+	/**
+	 * Current size of the player's party, lobby, or group.
+	 */
+	public int partySize;
+	/**
+	 * Maximum size of the player's party, lobby, or group.
+	 */
+	public int partyMax;
+	/**
+	 * Unused.
+	 */
+	@Deprecated
+	public String matchSecret;
+	/**
+	 * Unique hashed string for Spectate button.
+	 */
+	public String spectateSecret;
+	/**
+	 * Unique hashed string for chat invitations and Ask to Join.
+	 */
+	public String joinSecret;
+	/**
+	 * Unused.
+	 */
+	@Deprecated
+	public int instance;
+
+	@Override
+	public List<String> getFieldOrder() {
+		return Arrays.asList("state", "details", "startTimestamp", "endTimestamp", "largeImageKey", "largeImageText", "smallImageKey", "smallImageText", "partyId", "partySize", "partyMax", "matchSecret", "spectateSecret",  "joinSecret","instance");
+	}
+
+	/*+
+	 * Builder object provided to easily assemble DiscordRichPresence objects without having to add a huge assignment Block.
+	 * No method is essential, not called methods/unassigned fields are simply ignored and not applied in the final DiscordRichPresence
+	 * seen inside the Discord client.
+	 */
+	public static class Builder {
+
+		private DiscordRichPresence p;
+
+		/**
+		 * Initiates a new instance of the Presence builder.
+		 *
+		 * @param state String representing the player's current state.
+		 * @see DiscordRichPresence
+		 */
+		public Builder(String state) {
+			p = new DiscordRichPresence();
+			p.state = state;
+		}
+
+		/**
+		 * Sets the details field of the DiscordRichPresence object.
+		 *
+		 * @param details String representing details to the player's current state.
+		 * @return Current Builder object.
+		 * @see DiscordRichPresence
+		 */
+		public Builder setDetails(String details) {
+			p.details = details;
+			return this;
+		}
+
+		/**
+		 * Sets the starting timestamps of the DiscordRichPresence object, to activate the timer display.
+		 *
+		 * @param start Long Unix Timestamp representing the starting point of the timer.
+		 * @return Current Builder object.
+		 * @see DiscordRichPresence
+		 */
+		public Builder setStartTimestamps(long start) {
+			p.startTimestamp = start;
+			return this;
+		}
+
+		/**
+		 * Sets the ending timestamps of the DiscordRichPresence object, to activate the timer display.
+		 *
+		 * @param end Long Unix Timestamp representing the ending point of the timer.
+		 * @return Current Builder object.
+		 * @see DiscordRichPresence
+		 */
+		public Builder setEndTimestamp(long end) {
+			p.endTimestamp = end;
+			return this;
+		}
+
+		/**
+		 * Sets the large image fields of the DiscordRichPresence object. key cannot be null when text is not null.
+		 *
+		 * @param key  String key assigned to the image asset inside of the Discord Application.
+		 * @param text String text shown as hover text when hovering over the image of the presence.
+		 * @return Current Builder object.
+		 * @see DiscordRichPresence
+		 */
+		public Builder setBigImage(String key, String text) {
+			if ((text != null && !text.equalsIgnoreCase("")) && key == null)
+				throw new IllegalArgumentException("Image key must not be null when assigning a hover text.");
+
+			p.largeImageKey = key;
+			p.largeImageText = text;
+			return this;
+		}
+
+		/**
+		 * Sets the small image fields of the DiscordRichPresence object. key cannot be null when text is not null.
+		 *
+		 * @param key  String key assigned to the image asset inside of the Discord Application.
+		 * @param text String text shown as hover text when hovering over the image of the presence.
+		 * @return Current Builder object.
+		 * @see DiscordRichPresence
+		 */
+		public Builder setSmallImage(String key, String text) {
+			if ((text != null && !text.equalsIgnoreCase("")) && key == null)
+				throw new IllegalArgumentException("Image key must not be null when assigning a hover text.");
+
+			p.smallImageKey = key;
+			p.smallImageText = text;
+			return this;
+		}
+
+		/**
+		 * Sets the party information for the "Party" section of the user's presence.
+		 *
+		 * @param party Unique String given to the party as identifier.
+		 * @param size  Integer representing the current size of the user's party.
+		 * @param max   Integer representing the maximal size of the user's party.
+		 * @return Current Builder object.
+		 * @see DiscordRichPresence
+		 */
+		public Builder setParty(String party, int size, int max) {
+			p.partyId = party;
+			p.partySize = size;
+			p.partyMax = max;
+			return this;
+		}
+
+		/**
+		 * Unused.
+		 */
+		@Deprecated
+		public Builder setSecrets(String match, String join, String spectate) {
+			p.matchSecret = match;
+			p.joinSecret = join;
+			p.spectateSecret = spectate;
+			return this;
+		}
+
+		/**
+		 * Sets the secret fields of the DiscordRichPresence object.
+		 *
+		 * @param join     Unique String containing necessary information passed to the joining player.
+		 * @param spectate Unique String containing necessary information passed to the spectating player.
+		 * @return Current Builder object.
+		 * @see DiscordRichPresence
+		 */
+		public Builder setSecrets(String join, String spectate) {
+			p.joinSecret = join;
+			p.spectateSecret = spectate;
+			return this;
+		}
+
+		/**
+		 * Unused.
+		 */
+		@Deprecated
+		public Builder setInstance(boolean i) {
+			p.instance = i ? 1 : 0;
+			return this;
+		}
+
+		/**
+		 * Returns the fully finished DiscordRichPresence object. Non-assigned fields are being ignored.
+		 *
+		 * @return The build DiscordRichPresence object.
+		 * @see DiscordRichPresence
+		 */
+		public DiscordRichPresence build() {
+			return p;
+		}
+	}
+}
diff --git a/src/main/java/net/arikia/dev/drpc/DiscordUser.java b/src/main/java/net/arikia/dev/drpc/DiscordUser.java
new file mode 100644
index 00000000..7c735393
--- /dev/null
+++ b/src/main/java/net/arikia/dev/drpc/DiscordUser.java
@@ -0,0 +1,39 @@
+package net.arikia.dev.drpc;
+
+import com.sun.jna.Structure;
+
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * @author Nicolas "Vatuu" Adamoglou
+ * @version 1.5.1
+ * <p>
+ * Object containing information about a Discord user.
+ */
+public class DiscordUser extends Structure {
+
+	/**
+	 * The userId of the player asking to join.
+	 */
+	public String userId;
+	/**
+	 * The username of the player asking to join.
+	 */
+	public String username;
+	/**
+	 * The discriminator of the player asking to join.
+	 */
+	public String discriminator;
+	/**
+	 * The avatar hash of the player asking to join.
+	 *
+	 * @see <a href="https://discordapp.com/developers/docs/reference#image-formatting">Image Formatting</a>
+	 */
+	public String avatar;
+
+	@Override
+	public List<String> getFieldOrder() {
+		return Arrays.asList("userId", "username", "discriminator", "avatar");
+	}
+}
\ No newline at end of file
diff --git a/src/main/java/net/arikia/dev/drpc/OSUtil.java b/src/main/java/net/arikia/dev/drpc/OSUtil.java
new file mode 100644
index 00000000..74ca35c6
--- /dev/null
+++ b/src/main/java/net/arikia/dev/drpc/OSUtil.java
@@ -0,0 +1,25 @@
+package net.arikia.dev.drpc;
+
+/**
+ * @author DeJay
+ * @version 1.6.1
+ * <p>
+ * Class containing utils for detecting the user's OS.
+ */
+public final class OSUtil {
+
+	public boolean isMac() {
+		return getOS().toLowerCase()
+				.startsWith("mac");
+	}
+
+	public boolean isWindows() {
+		return getOS().toLowerCase()
+				.startsWith("win");
+	}
+
+	public String getOS() {
+		return System.getProperty("os.name").toLowerCase();
+	}
+
+}
\ No newline at end of file
diff --git a/src/main/java/net/arikia/dev/drpc/callbacks/DisconnectedCallback.java b/src/main/java/net/arikia/dev/drpc/callbacks/DisconnectedCallback.java
new file mode 100644
index 00000000..ccc11a24
--- /dev/null
+++ b/src/main/java/net/arikia/dev/drpc/callbacks/DisconnectedCallback.java
@@ -0,0 +1,21 @@
+package net.arikia.dev.drpc.callbacks;
+
+import com.sun.jna.Callback;
+
+/**
+ * @author Nicolas "Vatuu" Adamoglou
+ * @version 1.5.1
+ * <p>
+ * Interface to be implemented in classes that will be registered as "DisconnectedCallback" Event Handler.
+ * @see net.arikia.dev.drpc.DiscordEventHandlers
+ **/
+public interface DisconnectedCallback extends Callback {
+
+	/**
+	 * Method called when disconnected.
+	 *
+	 * @param errorCode Error code returned on disconnection.
+	 * @param message   Message containing details about the disconnection.
+	 */
+	void apply(int errorCode, String message);
+}
diff --git a/src/main/java/net/arikia/dev/drpc/callbacks/ErroredCallback.java b/src/main/java/net/arikia/dev/drpc/callbacks/ErroredCallback.java
new file mode 100644
index 00000000..f5d736d7
--- /dev/null
+++ b/src/main/java/net/arikia/dev/drpc/callbacks/ErroredCallback.java
@@ -0,0 +1,21 @@
+package net.arikia.dev.drpc.callbacks;
+
+import com.sun.jna.Callback;
+
+/**
+ * @author Nicolas "Vatuu" Adamoglou
+ * @version 1.5.1
+ * <p>
+ * Interface to be implemented in classes that will be registered as "ErroredCallback" Event Handler.
+ * @see net.arikia.dev.drpc.DiscordEventHandlers
+ **/
+public interface ErroredCallback extends Callback {
+
+	/**
+	 * Method called when a error occurs.
+	 *
+	 * @param errorCode Error code returned.
+	 * @param message   Message containing details about the error.
+	 */
+	void apply(int errorCode, String message);
+}
diff --git a/src/main/java/net/arikia/dev/drpc/callbacks/JoinGameCallback.java b/src/main/java/net/arikia/dev/drpc/callbacks/JoinGameCallback.java
new file mode 100644
index 00000000..c4e865db
--- /dev/null
+++ b/src/main/java/net/arikia/dev/drpc/callbacks/JoinGameCallback.java
@@ -0,0 +1,20 @@
+package net.arikia.dev.drpc.callbacks;
+
+import com.sun.jna.Callback;
+
+/**
+ * @author Nicolas "Vatuu" Adamoglou
+ * @version 1.5.1
+ * <p>
+ * Interface to be implemented in classes that will be registered as "JoinGameCallback" Event Handler.
+ * @see net.arikia.dev.drpc.DiscordEventHandlers
+ **/
+public interface JoinGameCallback extends Callback {
+
+	/**
+	 * Method called when joining a game.
+	 *
+	 * @param joinSecret Unique String containing information needed to let the player join.
+	 */
+	void apply(String joinSecret);
+}
diff --git a/src/main/java/net/arikia/dev/drpc/callbacks/JoinRequestCallback.java b/src/main/java/net/arikia/dev/drpc/callbacks/JoinRequestCallback.java
new file mode 100644
index 00000000..ddcc9614
--- /dev/null
+++ b/src/main/java/net/arikia/dev/drpc/callbacks/JoinRequestCallback.java
@@ -0,0 +1,22 @@
+package net.arikia.dev.drpc.callbacks;
+
+import com.sun.jna.Callback;
+import net.arikia.dev.drpc.DiscordUser;
+
+/**
+ * @author Nicolas "Vatuu" Adamoglou
+ * @version 1.5.1
+ * <p>
+ * Interface to be implemented in classes that will be registered as "JoinRequestCallback" Event Handler.
+ * @see net.arikia.dev.drpc.DiscordEventHandlers
+ **/
+public interface JoinRequestCallback extends Callback {
+
+	/**
+	 * Method called when another player requests to join a game.
+	 *
+	 * @param request Object containing all required information about the user requesting to join.
+	 * @see DiscordUser
+	 */
+	void apply(DiscordUser request);
+}
diff --git a/src/main/java/net/arikia/dev/drpc/callbacks/ReadyCallback.java b/src/main/java/net/arikia/dev/drpc/callbacks/ReadyCallback.java
new file mode 100644
index 00000000..292ce2fd
--- /dev/null
+++ b/src/main/java/net/arikia/dev/drpc/callbacks/ReadyCallback.java
@@ -0,0 +1,23 @@
+package net.arikia.dev.drpc.callbacks;
+
+import com.sun.jna.Callback;
+import net.arikia.dev.drpc.DiscordUser;
+
+/**
+ * @author Nicolas "Vatuu" Adamoglou
+ * @version 1.5.1
+ * <p>
+ * Interface to be implemented in classes that will be registered as "ReadyCallback" Event Handler.
+ * @see net.arikia.dev.drpc.DiscordEventHandlers
+ **/
+public interface ReadyCallback extends Callback {
+
+	/**
+	 * Method called when the connection to Discord has been established.
+	 *
+	 * @param user Object containing all required information about the user executing the app.
+	 * @see DiscordUser
+	 **/
+	void apply(DiscordUser user);
+}
+
diff --git a/src/main/java/net/arikia/dev/drpc/callbacks/SpectateGameCallback.java b/src/main/java/net/arikia/dev/drpc/callbacks/SpectateGameCallback.java
new file mode 100644
index 00000000..28af7329
--- /dev/null
+++ b/src/main/java/net/arikia/dev/drpc/callbacks/SpectateGameCallback.java
@@ -0,0 +1,20 @@
+package net.arikia.dev.drpc.callbacks;
+
+import com.sun.jna.Callback;
+
+/**
+ * @author Nicolas "Vatuu" Adamoglou
+ * @version 1.5.1
+ * <p>
+ * Interface to be implemented in classes that will be registered as "SpectateGameCallback" Event Handler.
+ * @see net.arikia.dev.drpc.DiscordEventHandlers
+ **/
+public interface SpectateGameCallback extends Callback {
+
+	/**
+	 * Method called when joining a game.
+	 *
+	 * @param spectateSecret Unique String containing information needed to let the player spectate.
+	 */
+	void apply(String spectateSecret);
+}