added cancel command

src/queue.ts

@@ -1,5 +1,9 @@
-import { info } from "console";
-import { CommandInteraction, GuildMember } from "discord.js";
+/* TODO
+- queue timeout
+    - after 5 mins of inactivity, the queue will close
+*/
+
+import { CommandInteraction, GuildMember, TextChannel } from "discord.js";
 import { shuffle } from "./util";
 
 type queueInfo = {
@@ -26,6 +30,21 @@ function getMember(interaction: CommandInteraction): GuildMember {
     return member;
 }
 
+/**
+ * get the TextChannel of an interaction
+ * @param interaction 
+ * @throws string message if it cannot be read
+ * @returns member
+ */
+function getChannel(interaction: CommandInteraction): TextChannel {
+    let channel = interaction.channel;
+
+    if (!(channel instanceof TextChannel))
+        throw 'Unable to retrieve text channel information, please try again';
+
+    return channel;
+}
+
 /**
  * get the queueInfo of an interaction
  * @param interaction 
@@ -41,6 +60,18 @@ function getInfo(interaction: CommandInteraction): queueInfo {
     return info;
 }
 
+/**
+ * compiles all the get functions above
+ * @param interaction 
+ * @throws string message if it does not exist
+ * @returns object containing each
+ */
+const getAll = (interaction: CommandInteraction) => ({
+        member: getMember(interaction),
+        channel: getChannel(interaction),
+        info: getInfo(interaction)
+    });
+
 /**
  * checks if the interaction data is already in the queue
  * @param interaction 
@@ -48,8 +79,7 @@ function getInfo(interaction: CommandInteraction): queueInfo {
  */
 export function queueContains(interaction: CommandInteraction): boolean {
 
-    let member = getMember(interaction),
-        info = getInfo(interaction);
+    let {member, info} = getAll(interaction);
 
     if (info.players.map(m=>m.id).includes(member.id))
         return true;
@@ -91,8 +121,7 @@ export async function createQueue(interaction: CommandInteraction) {
  */
 export async function joinQueue(interaction: CommandInteraction) {
 
-    let member = getMember(interaction),
-        info = getInfo(interaction);
+    let {member, info} = getAll(interaction);
 
     if (queueContains(interaction))
         throw 'You are already in the active queue';
@@ -112,8 +141,7 @@ export async function joinQueue(interaction: CommandInteraction) {
  */
 export async function leaveQueue(interaction: CommandInteraction) {
 
-    let member = getMember(interaction),
-        info = getInfo(interaction);
+    let {member, info} = getAll(interaction);
 
     if (!queueContains(interaction))
         throw 'You aren\'t in the active queue';
@@ -133,8 +161,7 @@ export async function leaveQueue(interaction: CommandInteraction) {
  */
 export async function readyQueue(interaction: CommandInteraction) {
 
-    let member = getMember(interaction),
-        info = getInfo(interaction),
+    let {member, info} = getAll(interaction),
         {initiator} = info;
 
     if (member.id !== initiator.id)
@@ -168,6 +195,25 @@ export async function readyQueue(interaction: CommandInteraction) {
 
 }
 
+/**
+ * readys a queue from an interaction
+ * @param interaction 
+ * @throws string message if it cannot be reset
+ */
+export async function cancelQueue(interaction: CommandInteraction) {
+
+    let {member, channel} = getAll(interaction);
+
+    if (!member.permissionsIn(channel).has('MANAGE_MESSAGES'))
+        throw 'You do not have permission to run this command';
+
+    //reset queue
+    QUEUE.delete(interaction.channelId);
+
+    await interaction.reply('Queue has been reset');
+
+}
+
 /**
  * sends the queue information from an interaction
  * @param interaction