Streamlined joining and leaving autocomplete

- Removed custom command builder as it's no longer needed with autocomplete

Server/commands/join.js

@@ -1,7 +1,7 @@
 // Modules
-const { customSlashCommandBuilder } = require('../utilities/customSlashCommandBuilder');
+const { SlashCommandBuilder } = require('discord.js');
 const { DebugBuilder } = require("../utilities/debugBuilder");
-const { getMembersInRole, getAllClientIds } = require("../utilities/utils");
+const { getMembersInRole, getAllClientIds, filterAutocompleteValues } = require("../utilities/utils");
 const { requestOptions, sendHttpRequest } = require("../utilities/httpRequests");
 const { getOnlineNodes, updateNodeInfo, addNodeConnection, getConnectionByNodeId } = require("../utilities/mysqlHandler");
 
@@ -88,15 +88,42 @@ async function joinServerWrapper(presetName, channelId, clientIdsUsed) {
 exports.joinServerWrapper = joinServerWrapper;
 
 module.exports = {
-	data: new customSlashCommandBuilder()
+	data: new SlashCommandBuilder()
 		.setName('join')
 		.setDescription('Join the channel you are in with the preset you choose')
-		.addAllSystemPresetOptions(),
+		.addStringOption(option => 
+			option.setName("preset")
+			.setDescription("The preset you would like to listen to")
+			.setAutocomplete(true)
+			.setRequired(true)),
 	example: "join",
 	isPrivileged: false,
 	requiresTokens: false,
 	defaultTokenUsage: 0,
 	deferInitialReply: true,
+	async autocomplete(interaction) {
+		const nodeObjects = await new Promise((recordResolve, recordReject) => {
+            getOnlineNodes((nodeRows) => {
+                recordResolve(nodeRows);
+            });
+        });
+        log.DEBUG("Node objects: ", nodeObjects);
+        var presetsAvailable = [];
+        for (const nodeObject of nodeObjects) {            
+            log.DEBUG("Node object: ", nodeObject);
+            for (const presetName in nodeObject.nearbySystems) presetsAvailable.push(nodeObject.nearbySystems[presetName]);
+        }
+
+        log.DEBUG("All Presets available: ", presetsAvailable);
+
+        // Remove duplicates
+        options = [...new Set(presetsAvailable)];
+        log.DEBUG("DeDuped Presets available: ", options);
+
+		// Filter the results to what the user is entering
+		filterAutocompleteValues(interaction, options);
+				
+	},
 	async execute(interaction) {
 		try{
 			const guildId = interaction.guild.id;