From 0ec88c47c692d5759025d63b3db8ed1f77c3d624 Mon Sep 17 00:00:00 2001
From: Dragon Fire <danielbodendahl@gmail.com>
Date: Tue, 7 Jul 2020 17:58:33 -0400
Subject: [PATCH] Send message on guild join/leave

---
 .env.example                   |  1 +
 Xiao.js                        | 40 ++++++++++++++++++++++++++++------
 commands/util-public/report.js |  5 ++---
 package.json                   |  2 +-
 structures/Client.js           | 21 +++++++++++++++++-
 5 files changed, 57 insertions(+), 12 deletions(-)

diff --git a/.env.example b/.env.example
index 3c803d4e..e3bcd5ba 100644
--- a/.env.example
+++ b/.env.example
@@ -11,6 +11,7 @@ POSTER_ID=
 POSTER_TOKEN=
 POSTER_TIME=
 REPORT_CHANNEL_ID=
+JOIN_LEAVE_CHANNEL_ID=
 
 # Emoji IDs
 GOLD_FISH_EMOJI_ID=
diff --git a/Xiao.js b/Xiao.js
index 6726171b..db9f1ada 100644
--- a/Xiao.js
+++ b/Xiao.js
@@ -1,7 +1,7 @@
 require('dotenv').config();
 const { XIAO_TOKEN, OWNERS, XIAO_PREFIX, INVITE } = process.env;
 const path = require('path');
-const { Intents } = require('discord.js');
+const { Intents, MessageEmbed } = require('discord.js');
 const Client = require('./structures/Client');
 const client = new Client({
 	commandPrefix: XIAO_PREFIX,
@@ -115,12 +115,38 @@ client.on('message', async msg => {
 });
 
 client.on('guildCreate', async guild => {
-	if (!guild.systemChannel || !guild.systemChannel.permissionsFor(client.user).has('SEND_MESSAGES')) return;
-	try {
-		const usage = client.registry.commands.get('help').usage();
-		await guild.systemChannel.send(`Hi! I'm Xiao, use ${usage} to see my commands, yes?`);
-	} catch {
-		return; // eslint-disable-line no-useless-return
+	if (guild.systemChannel && guild.systemChannel.permissionsFor(client.user).has('SEND_MESSAGES')) {
+		try {
+			const usage = client.registry.commands.get('help').usage();
+			await guild.systemChannel.send(`Hi! I'm Xiao, use ${usage} to see my commands, yes?`);
+		} catch {
+			// Nothing!
+		}
+	}
+	const joinLeaveChannel = await client.fetchJoinLeaveChannel();
+	if (joinLeaveChannel) {
+		const embed = new MessageEmbed()
+			.setColor(0x7CFC00)
+			.setThumbnail(guild.iconURL({ format: 'png' }))
+			.setTitle(`Joined ${guild.name}!`)
+			.setFooter(`ID: ${guild.id}`)
+			.setTimestamp()
+			.addField('❯ Members', guild.memberCount);
+		await joinLeaveChannel.send({ embed });
+	}
+});
+
+client.on('guildDelete', async guild => {
+	const joinLeaveChannel = await client.fetchJoinLeaveChannel();
+	if (joinLeaveChannel) {
+		const embed = new MessageEmbed()
+			.setColor(0xFF0000)
+			.setThumbnail(guild.iconURL({ format: 'png' }))
+			.setTitle(`Left ${guild.name}...`)
+			.setFooter(`ID: ${guild.id}`)
+			.setTimestamp()
+			.addField('❯ Members', guild.memberCount);
+		await joinLeaveChannel.send({ embed });
 	}
 });
 
diff --git a/commands/util-public/report.js b/commands/util-public/report.js
index f418b92e..8e545bc5 100644
--- a/commands/util-public/report.js
+++ b/commands/util-public/report.js
@@ -4,7 +4,6 @@ const { list } = require('../../util/Util');
 const reasons = ['bug', 'feedback', 'suggestion'];
 const reasonColors = ['RED', 'GREEN', 'YELLOW'];
 const displayReasons = ['🐛 Bug Report', '📬 Feedback', '❓ Suggestion'];
-const { REPORT_CHANNEL_ID } = process.env;
 
 module.exports = class ReportCommand extends Command {
 	constructor(client) {
@@ -40,9 +39,9 @@ module.exports = class ReportCommand extends Command {
 			.setFooter(`ID: ${msg.author.id}`)
 			.setTimestamp()
 			.setColor(reasonColors[reason]);
-		if (REPORT_CHANNEL_ID) {
+		const channel = await this.client.fetchReportChannel();
+		if (channel) {
 			try {
-				const channel = await this.client.channels.fetch(REPORT_CHANNEL_ID);
 				await channel.send({ embed });
 			} catch {
 				await this.sendOwnerDM(embed);
diff --git a/package.json b/package.json
index fe14911d..564b5cf9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "xiao",
-	"version": "119.12.4",
+	"version": "119.12.5",
 	"description": "Your personal server companion.",
 	"main": "Xiao.js",
 	"scripts": {
diff --git a/structures/Client.js b/structures/Client.js
index 6c7517ad..70db67d5 100644
--- a/structures/Client.js
+++ b/structures/Client.js
@@ -9,7 +9,16 @@ const MemePosterClient = require('./MemePoster');
 const activities = require('../assets/json/activity');
 const leaveMsgs = require('../assets/json/leave-messages');
 const subreddits = require('../assets/json/meme');
-const { XIAO_WEBHOOK_ID, XIAO_WEBHOOK_TOKEN, POSTER_ID, POSTER_TOKEN, POSTER_TIME } = process.env;
+const { null, null } = require('mathjs');
+const {
+	XIAO_WEBHOOK_ID,
+	XIAO_WEBHOOK_TOKEN,
+	POSTER_ID,
+	POSTER_TOKEN,
+	POSTER_TIME,
+	REPORT_CHANNEL_ID,
+	JOIN_LEAVE_CHANNEL_ID
+} = process.env;
 
 module.exports = class XiaoClient extends CommandoClient {
 	constructor(options) {
@@ -69,4 +78,14 @@ module.exports = class XiaoClient extends CommandoClient {
 		});
 		return buf;
 	}
+
+	fetchReportChannel() {
+		if (!REPORT_CHANNEL_ID) return null;
+		return this.channels.fetch(REPORT_CHANNEL_ID);
+	}
+
+	fetchJoinLeaveChannel() {
+		if (!JOIN_LEAVE_CHANNEL_ID) return null;
+		return this.channels.fetch(JOIN_LEAVE_CHANNEL_ID);
+	}
 };