feat: grant role when user applies our tag

src/config/ids.ts

@@ -11,8 +11,12 @@ export const ids = {
     news:                   "1407804798677418198",
     resumeReviewForum:      "1407807555266154496",
   },
+  guilds: {
+    nhcarrigan: "1354624415861833870",
+  },
   roles: {
-    nhcarrigan: "1355033209037127771",
+    nhcarrigan:   "1355033209037127771",
+    representing: "1407861842847469598",
   },
   tags: {
     goal: {

src/index.ts

@@ -11,6 +11,7 @@ import {
   postFreeCodeCampNews,
   postHackerNews,
 } from "./modules/postNews.js";
+import { processUserGuildTag } from "./modules/processUserGuildTag.js";
 import { respondToDm } from "./modules/respondToDm.js";
 import { instantiateServer } from "./server/serve.js";
 import { logger } from "./utils/logger.js";
@@ -54,5 +55,9 @@ amari.discord.on(Events.InteractionCreate, (interaction) => {
   }
 });
 
+amari.discord.on(Events.UserUpdate, (_oldUser, updatedUser) => {
+  void processUserGuildTag(amari, updatedUser);
+});
+
 await amari.discord.login(process.env.BOT_TOKEN);
 instantiateServer();

src/modules/processUserGuildTag.ts

@@ -0,0 +1,51 @@
+/**
+ * @copyright NHCarrigan
+ * @license Naomi's Public License
+ * @author Naomi Carrigan
+ */
+
+import { ids } from "../config/ids.js";
+import { logger } from "../utils/logger.js";
+import type { Amari } from "../interfaces/amari.js";
+import type { User } from "discord.js";
+
+/**
+ * If the user has our guild tag, and does not have the role for
+ * it, give them the role.
+ * @param amari - Amari's instance.
+ * @param user - The user payload from Discord.
+ */
+// eslint-disable-next-line complexity -- I don't wanna refactor right now.
+export const processUserGuildTag = async(
+  amari: Amari,
+  user: User,
+): Promise<void> => {
+  try {
+    const guild = amari.discord.guilds.cache.get(ids.guilds.nhcarrigan)
+      ?? await amari.discord.guilds.fetch(ids.guilds.nhcarrigan).catch(() => {
+        return null;
+      });
+    if (guild === null) {
+      return;
+    }
+    const member = guild.members.cache.get(user.id)
+      ?? await guild.members.fetch(user.id).catch(() => {
+        return null;
+      });
+    if (member === null) {
+      return;
+    }
+    if (user.primaryGuild?.identityGuildId === ids.guilds.nhcarrigan
+      && !member.roles.cache.has(ids.roles.representing)) {
+      await member.roles.add(ids.roles.representing);
+    }
+    if (user.primaryGuild?.identityGuildId !== ids.guilds.nhcarrigan
+      && member.roles.cache.has(ids.roles.representing)) {
+      await member.roles.remove(ids.roles.representing);
+    }
+  } catch (error) {
+    if (error instanceof Error) {
+      await logger.error("process user guild tag module", error);
+    }
+  }
+};