feat(gateway:listeners): Add memberJoin module

4 files changed, 237 insertions, 0 deletions

diff --git a/packages/gateway/src/listeners/clientReady/index.ts b/packages/gateway/src/listeners/clientReady/index.ts
index a0b2ebd..4ab9c06 100644
--- a/packages/gateway/src/listeners/clientReady/index.ts
+++ b/packages/gateway/src/listeners/clientReady/index.ts
@@ -5,6 +5,7 @@ import { handleUmagramCatchup } from "./umagramCatchup";
 import { initializeMessageStatistics } from "../messageStatistics";
 import { initializePersonaSystem } from "../messageCreate/personaRandomMessage";
 import { initializeConversationStarterSystem } from "../messageCreate/dailyConversationStarter";
+import { initializeWelcomeSystem } from "../memberJoin";
 
 export const handleClientReady = (client: Client) => {
   client.once(Events.ClientReady, async (readyClient) => {
@@ -13,6 +14,7 @@ export const handleClientReady = (client: Client) => {
     initializeMessageStatistics();
     initializePersonaSystem(readyClient);
     initializeConversationStarterSystem(readyClient);
+    initializeWelcomeSystem(readyClient);
     await handleUmagramCatchup(readyClient);
   });
 };
diff --git a/packages/gateway/src/listeners/index.ts b/packages/gateway/src/listeners/index.ts
index 2eadb41..044f10d 100644
--- a/packages/gateway/src/listeners/index.ts
+++ b/packages/gateway/src/listeners/index.ts
@@ -5,6 +5,7 @@ import { handleChannelDeletion } from "./channelDeletion";
 import { handleMessageDeletion } from "./messageDeletion";
 import { handleMessageEdit } from "./messageEdit";
 import { handleClientReady } from "./clientReady";
+import { handleMemberJoin } from "./memberJoin";
 // import { handleMediaModeration } from "./mediaModeration";
 
 export const handleListeners = (client: Client) => {
@@ -14,5 +15,6 @@ export const handleListeners = (client: Client) => {
   handleChannelDeletion(client);
   handleMessageDeletion(client);
   handleMessageEdit(client);
+  handleMemberJoin(client);
   // handleMediaModeration(client);
 };
diff --git a/packages/gateway/src/listeners/memberJoin.ts b/packages/gateway/src/listeners/memberJoin.ts
new file mode 100644
index 0000000..91104c5
--- /dev/null
+++ b/packages/gateway/src/listeners/memberJoin.ts
@@ -0,0 +1,189 @@
+import { Client, Events, GuildMember, WebhookClient } from "discord.js";
+import {
+  CENTRAL_GUILD_ID,
+  ROLEPLAY_GUILD_ID,
+  UMA_PERSONAS,
+} from "../constants";
+import { WELCOME_GREETINGS, WELCOME_ENDINGS } from "./messageCreate/constants";
+
+const CENTRAL_WELCOME_CHANNEL_ID = "1406422619087044670";
+const ROLEPLAY_WELCOME_CHANNEL_ID = "1423919139864707084";
+
+class WelcomeMessageSystem {
+  private centralWebhookClient: WebhookClient | null = null;
+  private roleplayWebhookClient: WebhookClient | null = null;
+  private client: Client | null = null;
+
+  constructor() {
+    //
+  }
+
+  public async setClient(client: Client) {
+    this.client = client;
+
+    await this.initializePersistentWebhook();
+  }
+
+  private async initializePersistentWebhook() {
+    if (!this.client) return;
+
+    // Initialize central server webhook
+    try {
+      const centralChannel = this.client.channels.cache.get(
+        CENTRAL_WELCOME_CHANNEL_ID,
+      );
+
+      if (centralChannel && "fetchWebhooks" in centralChannel) {
+        const webhooks = await centralChannel.fetchWebhooks();
+        const existingWebhook = webhooks.find(
+          (webhook) => webhook.name === "UmaBot Welcome",
+        );
+
+        if (existingWebhook) {
+          this.centralWebhookClient = new WebhookClient({
+            url: existingWebhook.url,
+          });
+        } else if ("createWebhook" in centralChannel) {
+          const webhook = await centralChannel.createWebhook({
+            name: "UmaBot Welcome",
+            avatar: "https://cdn.discordapp.com/embed/avatars/0.png",
+          });
+
+          this.centralWebhookClient = new WebhookClient({ url: webhook.url });
+        }
+      }
+    } catch (error) {
+      console.error(
+        "Failed to initialize persistent central welcome webhook:",
+        error,
+      );
+    }
+
+    try {
+      const roleplayChannel = this.client.channels.cache.get(
+        ROLEPLAY_WELCOME_CHANNEL_ID,
+      );
+
+      if (roleplayChannel && "fetchWebhooks" in roleplayChannel) {
+        const webhooks = await roleplayChannel.fetchWebhooks();
+        const existingWebhook = webhooks.find(
+          (webhook) => webhook.name === "UmaBot Welcome",
+        );
+
+        if (existingWebhook) {
+          this.roleplayWebhookClient = new WebhookClient({
+            url: existingWebhook.url,
+          });
+        } else if ("createWebhook" in roleplayChannel) {
+          const webhook = await roleplayChannel.createWebhook({
+            name: "UmaBot Welcome",
+            avatar: "https://cdn.discordapp.com/embed/avatars/0.png",
+          });
+
+          this.roleplayWebhookClient = new WebhookClient({ url: webhook.url });
+        }
+      }
+    } catch (error) {
+      console.error(
+        "Failed to initialize persistent roleplay welcome webhook:",
+        error,
+      );
+    }
+  }
+
+  private generateWelcomeMessage(userMention: string): string {
+    const greeting =
+      WELCOME_GREETINGS[Math.floor(Math.random() * WELCOME_GREETINGS.length)];
+    const ending =
+      WELCOME_ENDINGS[Math.floor(Math.random() * WELCOME_ENDINGS.length)];
+
+    return `${greeting.replace("{username}", userMention)} ${ending}`;
+  }
+
+  public async handleMemberJoin(member: GuildMember): Promise<void> {
+    if (!this.client) await this.setClient(member.client);
+
+    if (
+      member.guild.id !== CENTRAL_GUILD_ID &&
+      member.guild.id !== ROLEPLAY_GUILD_ID
+    )
+      return;
+
+    if (member.user.bot) return;
+
+    try {
+      const randomPersona =
+        UMA_PERSONAS[Math.floor(Math.random() * UMA_PERSONAS.length)];
+      const welcomeMessage = this.generateWelcomeMessage(
+        member.user.toString(),
+      );
+      let webhookClient: WebhookClient | null = null;
+      let channelId: string;
+
+      if (member.guild.id === CENTRAL_GUILD_ID) {
+        webhookClient = this.centralWebhookClient;
+        channelId = CENTRAL_WELCOME_CHANNEL_ID;
+      } else {
+        webhookClient = this.roleplayWebhookClient;
+        channelId = ROLEPLAY_WELCOME_CHANNEL_ID;
+      }
+
+      if (!webhookClient) {
+        console.error(
+          "Failed to send welcome message - webhook not initialized",
+        );
+
+        return;
+      }
+
+      const sentMessage = await webhookClient.send({
+        content: welcomeMessage,
+        username: randomPersona.name,
+        avatarURL: randomPersona.avatar,
+      });
+
+      try {
+        const channel = this.client!.channels.cache.get(channelId);
+
+        if (channel && "messages" in channel) {
+          const message = await channel.messages.fetch(sentMessage.id);
+
+          await message.react("✨");
+        }
+      } catch (error) {
+        console.error("Failed to react to welcome message:", error);
+      }
+    } catch (error) {
+      console.error("Failed to send welcome message:", error);
+    }
+  }
+
+  public destroy(): void {
+    this.centralWebhookClient?.destroy();
+    this.roleplayWebhookClient?.destroy();
+  }
+}
+
+let welcomeSystem: WelcomeMessageSystem | null = null;
+
+export const initializeWelcomeSystem = (client?: Client): void => {
+  if (!welcomeSystem) {
+    welcomeSystem = new WelcomeMessageSystem();
+
+    if (client) welcomeSystem.setClient(client);
+  }
+};
+
+export const handleMemberJoin = (client: Client) => {
+  client.on(Events.GuildMemberAdd, async (member: GuildMember) => {
+    if (welcomeSystem) await welcomeSystem.handleMemberJoin(member);
+  });
+};
+
+export const destroyWelcomeSystem = (): void => {
+  if (welcomeSystem) {
+    welcomeSystem.destroy();
+
+    welcomeSystem = null;
+  }
+};
diff --git a/packages/gateway/src/listeners/messageCreate/constants.ts b/packages/gateway/src/listeners/messageCreate/constants.ts
index 6bc66f5..9dbbc6b 100644
--- a/packages/gateway/src/listeners/messageCreate/constants.ts
+++ b/packages/gateway/src/listeners/messageCreate/constants.ts
@@ -145,3 +145,47 @@ export const PERSONA_REPLY_SECOND_PARTS = [
   "I'll archive this for when I'm deciding this channel's future",
   "This will be logged for my next channel management review",
 ];
+
+export const WELCOME_GREETINGS = [
+  "Welcome to the track, {username}!",
+  "Hey there, {username}! Welcome to our stable!",
+  "Hello, {username}! Ready to race with us?",
+  "Welcome aboard, {username}! Let's make some memories!",
+  "Hi, {username}! Welcome to the world of Uma Musume!",
+  "Hey, {username}! Welcome to our racing family!",
+  "Hello there, {username}! Welcome to the winner's circle!",
+  "Welcome, {username}! Time to show your racing spirit!",
+  "Hi, {username}! Welcome to our training grounds!",
+  "Hey, {username}! Welcome to the starting line!",
+];
+
+export const WELCOME_MIDDLES = [
+  "Hope you're ready for some racing fun!",
+  "Get ready to meet some amazing racing girls!",
+  "You're about to discover the world of Uma Musume!",
+  "Prepare for a community filled with racing spirit!",
+  "I can't wait to see what you'll bring to our community!",
+  "You're joining a place where every race tells a story!",
+  "Get ready to cheer on some incredible athletes!",
+  "You're about to learn what it means to never give up!",
+  "Hope you're excited to meet some determined racing girls!",
+  "You're entering a world of passion and perseverance!",
+  "Get ready to witness friendship and competition!",
+  "You're about to experience the magic of believing in yourself!",
+  "I can't wait to see you join our racing family!",
+  "You're joining a community with daily adventures!",
+  "Get ready to be inspired by stories of victory!",
+];
+
+export const WELCOME_ENDINGS = [
+  "Let's make some wonderful memories together! 🏆",
+  "I'm so excited to have you here! ✨",
+  "Welcome to the family! 🌟",
+  "Let's race towards our dreams together! 💫",
+  "I can't wait to see what adventures await us! 🎀",
+  "Welcome to our wonderful world! 🌸",
+  "Let's create some amazing stories together! 💕",
+  "I'm thrilled you're joining us! 🎉",
+  "Welcome to the starting line of something amazing! 🌺",
+  "Let's make every day special together! 💖",
+];