improved messages and general cleanup

src/util.ts

@@ -1,3 +1,4 @@
+import { CommandInteraction, GuildMember, TextChannel } from "discord.js";
 
 /**
  * shuffles an array
@@ -22,3 +23,68 @@ export function shuffle(array: any[]) {
 
     return array;
 }
+
+
+
+export class errorMessage {
+    public msg: string;
+    public ephemeral: boolean;
+
+    constructor(msg: string, ephemeral: boolean = true) {
+        this.msg = msg;
+        this.ephemeral = ephemeral;
+    }
+}
+
+/**
+ * a simple class to contain an error message and related data
+ * @param msg error message
+ * @param ephemeral (default=true)
+ * @returns new errorMessage
+ */
+export const emsg = (msg: string, ephemeral: boolean = true) => new errorMessage(msg, ephemeral);
+
+
+
+
+
+
+export type queueInfo = {
+    players: GuildMember[],
+    initiator: {
+        interaction: CommandInteraction,
+        member: GuildMember
+    },
+    teamsize: number,
+    timeout: NodeJS.Timeout
+}
+
+/**
+ * get the GuildMember of an interaction
+ * @param interaction 
+ * @throws errorMessage class if it cannot be read
+ * @returns member
+ */
+export function getMember(interaction: CommandInteraction): GuildMember {
+    let member = interaction.member;
+
+    if (!(member instanceof GuildMember))
+        throw emsg('Unable to retrieve guild member information, please try again');
+
+    return member;
+}
+
+/**
+ * get the TextChannel of an interaction
+ * @param interaction 
+ * @throws errorMessage class if it cannot be read
+ * @returns member
+ */
+export function getChannel(interaction: CommandInteraction): TextChannel {
+    let channel = interaction.channel;
+
+    if (!(channel instanceof TextChannel))
+        throw emsg('Unable to retrieve text channel information, please try again');
+
+    return channel;
+}