[FEAT] Allow Discord Mentions to be configurable

src/main/java/com/hypherionmc/sdlink/core/config/impl/ChatSettingsConfig.java

@@ -89,4 +89,7 @@ public class ChatSettingsConfig {
     @SpecComment("Commands that should not be broadcasted to discord")
     public List<String> ignoredCommands = new ArrayList<String>() {{ add("particle"); add("login"); add("execute"); }};
 
+    @Path("allowMentionsFromChat")
+    @SpecComment("Allow mentioning discord roles, users and channels from Minecraft Chat")
+    public boolean allowMentionsFromChat = false;
 }

src/main/java/com/hypherionmc/sdlink/core/discord/events/DiscordEventHandler.java

@@ -10,11 +10,18 @@ import com.hypherionmc.sdlink.core.discord.commands.slash.general.ServerStatusSl
 import com.hypherionmc.sdlink.core.discord.hooks.BotReadyHooks;
 import com.hypherionmc.sdlink.core.discord.hooks.DiscordMessageHooks;
 import com.hypherionmc.sdlink.core.events.SDLinkReadyEvent;
+import com.hypherionmc.sdlink.core.managers.CacheManager;
 import com.hypherionmc.sdlink.core.managers.ChannelManager;
 import com.hypherionmc.sdlink.core.managers.PermissionChecker;
 import net.dv8tion.jda.api.JDA;
+import net.dv8tion.jda.api.events.channel.ChannelCreateEvent;
+import net.dv8tion.jda.api.events.channel.ChannelDeleteEvent;
+import net.dv8tion.jda.api.events.guild.GuildJoinEvent;
+import net.dv8tion.jda.api.events.guild.member.GuildMemberRemoveEvent;
 import net.dv8tion.jda.api.events.interaction.component.ButtonInteractionEvent;
 import net.dv8tion.jda.api.events.message.MessageReceivedEvent;
+import net.dv8tion.jda.api.events.role.RoleCreateEvent;
+import net.dv8tion.jda.api.events.role.RoleDeleteEvent;
 import net.dv8tion.jda.api.events.session.ReadyEvent;
 import net.dv8tion.jda.api.hooks.ListenerAdapter;
 import org.jetbrains.annotations.NotNull;
@@ -57,6 +64,7 @@ public class DiscordEventHandler extends ListenerAdapter {
             BotReadyHooks.startActivityUpdates(event);
             BotReadyHooks.startTopicUpdates();
             CraterEventBus.INSTANCE.postEvent(new SDLinkReadyEvent());
+            CacheManager.loadCache();
         }
     }
 
@@ -70,4 +78,46 @@ public class DiscordEventHandler extends ListenerAdapter {
             event.reply("Success!").setEphemeral(true).queue();
         }
     }
+
+    @Override
+    public void onGuildJoin(@NotNull GuildJoinEvent event) {
+        if (event.getJDA().getStatus() == JDA.Status.CONNECTED) {
+            CacheManager.loadUserCache();
+        }
+    }
+
+    @Override
+    public void onGuildMemberRemove(@NotNull GuildMemberRemoveEvent event) {
+        if (event.getJDA().getStatus() == JDA.Status.CONNECTED) {
+            CacheManager.loadUserCache();
+        }
+    }
+
+    @Override
+    public void onRoleCreate(@NotNull RoleCreateEvent event) {
+        if (event.getJDA().getStatus() == JDA.Status.CONNECTED) {
+            CacheManager.loadRoleCache();
+        }
+    }
+
+    @Override
+    public void onRoleDelete(@NotNull RoleDeleteEvent event) {
+        if (event.getJDA().getStatus() == JDA.Status.CONNECTED) {
+            CacheManager.loadRoleCache();
+        }
+    }
+
+    @Override
+    public void onChannelCreate(@NotNull ChannelCreateEvent event) {
+        if (event.getJDA().getStatus() == JDA.Status.CONNECTED) {
+            CacheManager.loadChannelCache();
+        }
+    }
+
+    @Override
+    public void onChannelDelete(@NotNull ChannelDeleteEvent event) {
+        if (event.getJDA().getStatus() == JDA.Status.CONNECTED) {
+            CacheManager.loadChannelCache();
+        }
+    }
 }

src/main/java/com/hypherionmc/sdlink/core/managers/CacheManager.java

@@ -0,0 +1,75 @@
+package com.hypherionmc.sdlink.core.managers;
+
+import com.hypherionmc.sdlink.core.discord.BotController;
+import net.dv8tion.jda.api.JDA;
+import net.dv8tion.jda.api.entities.channel.ChannelType;
+
+import java.util.HashMap;
+
+public class CacheManager {
+
+    private static final HashMap<String, String> serverChannels = new HashMap<>();
+    private static final HashMap<String, String> serverRoles = new HashMap<>();
+    private static final HashMap<String, String> userCache = new HashMap<>();
+
+    public static void loadCache() {
+        loadChannelCache();
+        loadRoleCache();
+        loadUserCache();
+    }
+
+    public static void loadChannelCache() {
+        serverChannels.clear();
+
+        JDA jda = BotController.INSTANCE.getJDA();
+
+        if (jda.getGuilds().isEmpty())
+            return;
+
+        jda.getGuilds().get(0).getChannels(false).forEach(c -> {
+            if (c.getType() != ChannelType.CATEGORY) {
+                serverChannels.put("#" + c.getName(), c.getAsMention());
+            }
+        });
+    }
+
+    public static void loadRoleCache() {
+        serverRoles.clear();
+
+        JDA jda = BotController.INSTANCE.getJDA();
+
+        if (jda.getGuilds().isEmpty())
+            return;
+
+        jda.getGuilds().get(0).getRoles().forEach(r -> {
+            if (r.isMentionable() && !r.isManaged()) {
+                serverRoles.put("@" + r.getName(), r.getAsMention());
+            }
+        });
+    }
+
+    public static void loadUserCache() {
+        userCache.clear();
+
+        JDA jda = BotController.INSTANCE.getJDA();
+
+        if (jda.getGuilds().isEmpty())
+            return;
+
+        jda.getGuilds().get(0).getMembers().forEach(r -> {
+            userCache.put("@" + r.getEffectiveName(), r.getAsMention());
+        });
+    }
+
+    public static HashMap<String, String> getServerChannels() {
+        return serverChannels;
+    }
+
+    public static HashMap<String, String> getServerRoles() {
+        return serverRoles;
+    }
+
+    public static HashMap<String, String> getUserCache() {
+        return userCache;
+    }
+}

src/main/java/com/hypherionmc/sdlink/core/messaging/discord/DiscordMessageBuilder.java

@@ -48,9 +48,12 @@ public final class DiscordMessageBuilder {
      */
     public DiscordMessageBuilder message(String message) {
         if (this.messageType == MessageType.CHAT) {
-            message = message.replace("<@", "");
             message = message.replace("@everyone", "");
             message = message.replace("@here", "");
+
+            if (!SDLinkConfig.INSTANCE.chatConfig.allowMentionsFromChat) {
+                message = message.replace("<@", "");
+            }
         }
 
         if (SDLinkConfig.INSTANCE.ignoreConfig.enabled) {