added notification for tutors

src/commands/queue/join.ts

@@ -1,7 +1,11 @@
 import { ApplicationCommandOptionType, Message } from "discord.js";
 import { Command } from "../../../typings";
-import { GuildModel } from "../../models/guilds";
-import { UserModel } from "../../models/users";
+import {GuildModel} from "../../models/guilds";
+import {UserModel} from "../../models/users";
+import { SessionModel } from "../../models/sessions";
+import { Queue } from "../../models/queues";
+import { ArraySubDocumentType } from "@typegoose/typegoose";
+import { Bot } from "../../bot";
 
 const command: Command = {
     name: "join",
@@ -89,9 +93,29 @@ const command: Command = {
         await client.utils.embeds.SimpleEmbed(interaction, { title: "Coaching System", text: queueData.getJoinMessage(user.id), empheral: true });
 
         // await client.utils.embeds.SimpleEmbed(interaction, "TODO", `Command \`${path.relative(process.cwd(), __filename)}\` is not Implemented Yet.`);
+
+        await informCoaches(client, queueData);
     },
 };
 
+/**
+ * sends a private message to all coaches having an active session on the given queue
+ * @param queueData queue the user joined in
+ */
+async function informCoaches(client: Bot, queueData: ArraySubDocumentType<Queue>) {
+    const activeSessions = await SessionModel.find({ queue: queueData.id, active: true }).exec();
+    try {
+        for(const session of activeSessions) {
+            const user = await client.users.fetch(session.user);
+            const dmChannel = await user.createDM();
+            await client.utils.embeds.SimpleEmbed(dmChannel, { title: "Coaching System", text: `${user.displayName} has joined the queue: ${queueData.name}`, empheral: true });
+        }
+    } catch (error) {
+        console.log(error)
+    }
+}
+
+
 /**
  * Exporting the Command using CommonJS
  */