From 5365c1df7947235b32f5d72e039e501f39a10c25 Mon Sep 17 00:00:00 2001
From: Lleyton Gray <lleyton@fyralabs.com>
Date: Sun, 10 Nov 2024 14:49:11 -0800
Subject: [PATCH] feat: logger module

---
 .env.example          |   1 +
 src/index.ts          |   1 +
 src/modules/logger.ts | 136 ++++++++++++++++++++++++++++++++++++++++++
 src/util.ts           |   6 ++
 4 files changed, 144 insertions(+)
 create mode 100644 src/modules/logger.ts

diff --git a/.env.example b/.env.example
index 17ad232..f6e0330 100644
--- a/.env.example
+++ b/.env.example
@@ -6,6 +6,7 @@ PRIMARY_GUILD_ID=
 ANNOUNCEMENTS_CHANNEL_ID=
 UPDATES_CHANNEL_ID=
 GENERAL_CHANNEL_ID=
+LOGGING_CHANNEL_ID=
 MEMBER_ROLE_ID=
 SUPPORT_FORUM_ID=
 HEALTH_PORT=8080
diff --git a/src/index.ts b/src/index.ts
index d11295d..986a688 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -63,3 +63,4 @@ import './modules/guildMemberAdd';
 import './modules/funAI';
 import './modules/cutefishInfo';
 import './modules/support';
+import './modules/logger';
diff --git a/src/modules/logger.ts b/src/modules/logger.ts
new file mode 100644
index 0000000..0a07d86
--- /dev/null
+++ b/src/modules/logger.ts
@@ -0,0 +1,136 @@
+import client from '../client';
+import { EmbedBuilder, Events, time, TimestampStyles } from 'discord.js';
+import { getLoggingChannel, userURL } from '../util';
+
+// Right now we log the following for moderation purposes:
+// - MessageDelete
+// - MessageUpdate
+// - GuildMemberAdd
+// - GuildMemberRemove
+
+client.on(Events.MessageDelete, async (message) => {
+  if (!message.member) return;
+
+  const loggingChannel = await getLoggingChannel();
+  if (!loggingChannel.isSendable()) {
+    throw new Error('Logging channel is not a text channel.');
+  }
+
+  const embed = new EmbedBuilder()
+    .setTitle('Message Delete')
+    .setAuthor({
+      name: message.member.displayName,
+      iconURL: message.member.displayAvatarURL(),
+      url: userURL(message.member.user.id),
+    })
+    .setColor('#ff0000')
+    .setDescription(message.content)
+    .setFooter({
+      text: `Message ID: ${message.id}`,
+    }).data;
+
+  await loggingChannel.send({
+    embeds: [embed],
+  });
+});
+
+client.on(Events.MessageUpdate, async (oldMessage, newMessage) => {
+  if (!oldMessage.member) return;
+
+  const loggingChannel = await getLoggingChannel();
+  if (!loggingChannel.isSendable()) {
+    throw new Error('Logging channel is not a text channel.');
+  }
+
+  const embed = new EmbedBuilder()
+    .setTitle('Message Update')
+    .setAuthor({
+      name: oldMessage.member.displayName,
+      iconURL: oldMessage.member.displayAvatarURL(),
+      url: userURL(oldMessage.member.user.id),
+    })
+    .setColor('#ffff00')
+    .addFields(
+      {
+        name: 'Old Content',
+        value: oldMessage.content ?? 'Unknown',
+      },
+      {
+        name: 'New Content',
+        value: newMessage.content ?? 'Unknown',
+      },
+    )
+    .setFooter({
+      text: `Message ID: ${oldMessage.id}`,
+    }).data;
+
+  await loggingChannel.send({
+    embeds: [embed],
+  });
+});
+
+client.on(Events.GuildMemberAdd, async (member) => {
+  const loggingChannel = await getLoggingChannel();
+  if (!loggingChannel.isSendable()) {
+    throw new Error('Logging channel is not a text channel.');
+  }
+
+  const embed = new EmbedBuilder()
+    .setTitle('Member Join')
+    .setAuthor({
+      name: member.displayName,
+      iconURL: member.displayAvatarURL(),
+      url: userURL(member.user.id),
+    })
+    .setColor('#00ff00')
+    .addFields(
+      {
+        name: 'Discord User Since',
+        value: time(member.user.createdAt, TimestampStyles.ShortDateTime),
+      },
+      {
+        name: 'User ID',
+        value: member.user.id,
+      },
+    )
+    .setFooter({
+      text: `Member ID: ${member.id}`,
+    }).data;
+
+  await loggingChannel.send({
+    embeds: [embed],
+  });
+});
+
+client.on(Events.GuildMemberRemove, async (member) => {
+  const loggingChannel = await getLoggingChannel();
+  if (!loggingChannel.isSendable()) {
+    throw new Error('Logging channel is not a text channel.');
+  }
+
+  const embed = new EmbedBuilder()
+    .setTitle('Member Leave')
+    .setAuthor({
+      name: member.displayName,
+      iconURL: member.displayAvatarURL(),
+      url: userURL(member.user.id),
+    })
+    .setColor('#ff0000')
+    .addFields(
+      {
+        name: 'Member Since',
+        value: member.joinedAt ? time(member.joinedAt, TimestampStyles.ShortDateTime) : 'Unknown',
+      },
+      {
+        name: 'User ID',
+        value: member.user.id,
+      },
+    )
+    .setFooter({
+      text: `Member ID: ${member.id}`,
+    }).data;
+
+  await loggingChannel.send({
+    embeds: [embed],
+  });
+});
diff --git a/src/util.ts b/src/util.ts
index dc7fdd6..240ddaa 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -29,6 +29,10 @@ export const getGeneralChannel = async (): Promise<Channel> =>
   (await client.channels.fetch(process.env.GENERAL_CHANNEL_ID!)) ??
   throwError('General channel not found');
 
+export const getLoggingChannel = async (): Promise<Channel> =>
+  (await client.channels.fetch(process.env.LOGGING_CHANNEL_ID!)) ??
+  throwError('Logging channel not found');
+
 export const getRedisConnection = (): ConnectionOptions => ({
   host: process.env.REDIS_HOST!,
   port: Number.parseInt(process.env.REDIS_PORT!, 10),
@@ -40,3 +44,5 @@ export const containsWord = (msg: Message, word: string): boolean => {
   const matches = msg.content.match(new RegExp(`\\b${word}\\b`, 'i'));
   return matches != null && matches.length > 0;
 };
+
+export const userURL = (id: string) => `https://discord.com/users/${id}`;