feat(cron): add birthday cron

apps/cron/src/crons/birthday.ts

@@ -0,0 +1,55 @@
+import { WebhookClient } from "discord.js";
+import { and, eq, exists, sql } from "drizzle-orm";
+
+import { db } from "@forge/db/client";
+import { Permissions, User } from "@forge/db/schemas/auth";
+import { Member } from "@forge/db/schemas/knight-hacks";
+import { logger } from "@forge/utils";
+
+import { env } from "../env";
+import { CronBuilder } from "../structs/CronBuilder";
+
+const BIRTHDAY_WEBHOOK = new WebhookClient({
+  url: env.DISCORD_WEBHOOK_BIRTHDAY,
+});
+
+export const birthday = new CronBuilder({
+  name: "birthday",
+  color: 7,
+}).addCron(
+  "0 12 * * *", // every day at 12 (noon!)
+  async () => {
+    const today = new Date();
+    const month = today.getMonth() + 1;
+    const day = today.getDate();
+
+    const members = await db
+      .select({
+        firstName: Member.firstName,
+        lastName: Member.lastName,
+        guildProfileVisible: Member.guildProfileVisible,
+        discordId: User.discordUserId,
+      })
+      .from(Member)
+      .leftJoin(User, eq(User.id, Member.userId))
+      .where(
+        and(
+          exists(
+            // can be removed if we want to open to full member list
+            db
+              .select()
+              .from(Permissions)
+              .where(eq(Permissions.userId, Member.userId)),
+          ),
+          eq(Member.guildProfileVisible, true),
+          eq(sql`EXTRACT(MONTH FROM ${Member.dob})`, month),
+          eq(sql`EXTRACT(DAY FROM ${Member.dob})`, day),
+        ),
+      );
+
+    for (const u of members) {
+      logger.log(`${u.firstName} ${u.lastName}'s birthday today!`);
+      await BIRTHDAY_WEBHOOK.send(`Happy Birthday, <@${u.discordId}>`);
+    }
+  },
+);

apps/cron/src/env.ts

@@ -6,13 +6,15 @@ export const env = createEnv({
     DISCORD_BOT_TOKEN: z.string(),
     DISCORD_WEBHOOK_ANIMAL: z.string(),
     DISCORD_WEBHOOK_LEETCODE: z.string(),
+    DISCORD_WEBHOOK_BIRTHDAY: z.string(),
     DISCORD_WEBHOOK_REMINDERS: z.string(),
     DISCORD_WEBHOOK_REMINDERS_PRE: z.string(),
     DISCORD_WEBHOOK_REMINDERS_HACK: z.string(),
   },
   runtimeEnvStrict: {
     DISCORD_BOT_TOKEN: process.env.DISCORD_BOT_TOKEN,
     DISCORD_WEBHOOK_ANIMAL: process.env.DISCORD_WEBHOOK_ANIMAL,
+    DISCORD_WEBHOOK_BIRTHDAY: process.env.DISCORD_WEBHOOK_BIRTHDAY,
     DISCORD_WEBHOOK_LEETCODE: process.env.DISCORD_WEBHOOK_LEETCODE,
     DISCORD_WEBHOOK_REMINDERS: process.env.DISCORD_WEBHOOK_REMINDERS,
     DISCORD_WEBHOOK_REMINDERS_PRE: process.env.DISCORD_WEBHOOK_REMINDERS_PRE,

apps/cron/src/index.ts

@@ -1,6 +1,7 @@
 import { alumniAssign } from "./crons/alumni-assign";
 import { capybara, cat, duck, goat } from "./crons/animals";
 import { backupFilteredDb } from "./crons/backup-filtered-db";
+import { birthday } from "./crons/birthday";
 import { leetcode } from "./crons/leetcode";
 import { preReminders, reminders } from "./crons/reminder";
 import { roleSync } from "./crons/role-sync";
@@ -22,4 +23,6 @@ reminders.schedule();
 // Silencing for now, needs to be manually re-enabled for hacks @WHOEVER_IS_DEV_LEAD_RN
 // hackReminders.schedule();
 
+birthday.schedule();
+
 roleSync.schedule();