feat: Leave queue shortcut completed

Author: apklinker

src/app.ts

@@ -1,6 +1,7 @@
-import { App } from '@slack/bolt';
 import { joinQueue } from '@bot/joinQueue';
+import { leaveQueue } from '@bot/leaveQueue';
 import { database } from '@database';
+import { App } from '@slack/bolt';
 
 export async function startApp(): Promise<void> {
   // Check connection to google sheets
@@ -14,6 +15,7 @@ export async function startApp(): Promise<void> {
   });
 
   joinQueue.setup(app);
+  leaveQueue.setup(app);
 
   let port = Number(process.env.PORT);
   if (!port || isNaN(port)) port = 3000;

src/bot/leaveQueue.ts

@@ -0,0 +1,36 @@
+import { userRepo } from '@repos/userRepo';
+import { App, Middleware, SlackShortcut, SlackShortcutMiddlewareArgs } from '@slack/bolt';
+import { codeBlock, compose } from '@utils/text';
+import { BOT_ICON_URL, BOT_USERNAME } from './constants';
+import { Interaction } from './enums';
+
+type ShortcutParam = Parameters<Middleware<SlackShortcutMiddlewareArgs<SlackShortcut>>>[0];
+
+export const leaveQueue = {
+  app: (undefined as unknown) as App,
+
+  setup(app: App): void {
+    this.app = app;
+    app.shortcut(Interaction.SHORTCUT_LEAVE_QUEUE, this.shortcut.bind(this));
+  },
+
+  async shortcut({ ack, shortcut, client, logger }: ShortcutParam): Promise<void> {
+    await ack();
+
+    const userId = shortcut.user.id;
+
+    let text: string;
+    try {
+      await userRepo.remove(userId);
+      text = "You've been removed from the HackerRank review queue";
+    } catch (err) {
+      text = compose('Something went wrong :/', codeBlock(err.message));
+    }
+    await client.chat.postMessage({
+      channel: userId,
+      text,
+      username: BOT_USERNAME,
+      icon_url: BOT_ICON_URL,
+    });
+  },
+};