Add server history autocomplete

.gitignore

@@ -128,3 +128,4 @@ dist
 .yarn/build-state.yml
 .yarn/install-state.gz
 .pnp.*
+history.json

findMc.js

@@ -7,7 +7,10 @@ const checkSrv = (hostname) => {
 	hostname = `_minecraft._tcp.${hostname}`;
 	return new Promise((resolve, reject) => {
 		dns.resolveSrv(hostname, (err, addresses) => {
-			if (err) reject(err);
+			if (err) {
+				return reject(err);
+			}
+			if (!addresses || addresses.length <= 0) return reject("No SRV record found.");
 			resolve(addresses[0]);
 		});
 	});

index.js

@@ -2,6 +2,7 @@ const findMc = require("./findMc");
 const colors = require("colors");
 require("dotenv").config();
 const Discord = require("discord.js");
+const fs = require("fs");
 const client = new Discord.Client({ intents: ["Guilds"] });
 
 unavailEmote = "<:unreachable:1255354739382816798>"
@@ -27,7 +28,8 @@ const commands = [{
 		name: "address",
 		description: "The address of the server",
 		type: 3,
-		required: true
+		required: true,
+		autocomplete: true
 	}],
 	integration_types: [0, 1],
 	contexts: [0, 1, 2]
@@ -65,13 +67,40 @@ client.on('ready', () => {
 	})();
 })
 
+// Try reading the history file, if it doesnt exist or is invalid, set addressHistory to an empty object.
+let addressHistory = {};
+try {
+	addressHistory = JSON.parse(fs.readFileSync("./history.json"));
+} catch (err) {
+	addressHistory = {};
+}
+// addressHistory[userid] = [address1, address2, address3, address4, address5]. Addresses never repeat, move them to the front of the array when they are used. Max of 10 addresses per user.
+
+const doAddressHistory = (userid, address) => {
+	if (!addressHistory[userid]) {
+		addressHistory[userid] = [address];
+		fs.writeFileSync("./history.json", JSON.stringify(addressHistory));
+		return;
+	}
+	if (addressHistory[userid].length >= 10) {
+		addressHistory[userid].pop();
+	}
+	// Check if the address is already in the array, if it is, remove it.
+	if (addressHistory[userid].includes(address)) {
+		addressHistory[userid].splice(addressHistory[userid].indexOf(address), 1);
+	}
+	addressHistory[userid].unshift(address);
+	// Save history to file for future use
+	fs.writeFileSync("./history.json", JSON.stringify(addressHistory));
+}
+
 client.on('interactionCreate', async interaction => {
-	if (!interaction.isCommand()) return;
-	console.log(`${colors.cyan("[INFO]")} Command ${colors.green(interaction.commandName)} executed by ${colors.green(interaction.user.displayName)}`);
+	if (interaction.isCommand()) {
 		switch (interaction.commandName) {
 			case "check":
 				await interaction.deferReply();
 				const address = interaction.options.getString("address");
+				doAddressHistory(interaction.user.id, address);
 				findMc(address, 5000).then((data) => {
 					data.description = filterMOTD(data.description);
 					msgData = {
@@ -127,6 +156,18 @@ client.on('interactionCreate', async interaction => {
 				})
 				break;
 		}
+	}
+	if(interaction.isAutocomplete()) {
+		// Send their history as options
+		const history = addressHistory[interaction.user.id] || [];
+		// Map the history to options
+		interaction.respond(history.map((address) => {
+			return {
+				name: address,
+				value: address
+			}
+		}));
+	}
 });
 
 client.login(process.env.TOKEN);