Fix options

Interactions

.eslintrc.json

@@ -1,11 +1,12 @@
 {
+  "root": true,
   "extends": ["eslint:recommended", "plugin:prettier/recommended"],
   "plugins": ["import"],
   "parserOptions": {
-    "ecmaVersion": 2019
+    "ecmaVersion": 2020
   },
   "env": {
-    "es6": true,
+    "es2020": true,
     "node": true
   },
   "overrides": [{ "files": ["*.browser.js"], "env": { "browser": true } }],
@@ -26,7 +27,8 @@
         "singleQuote": true,
         "quoteProps": "as-needed",
         "trailingComma": "all",
-        "endOfLine": "lf"
+        "endOfLine": "lf",
+        "arrowParens": "avoid"
       }
     ],
     "strict": ["error", "global"],

.github/CONTRIBUTING.md

@@ -11,8 +11,8 @@ is a great boon to your development process.
 To get ready to work on the codebase, please do the following:
 
 1. Fork & clone the repository, and make sure you're on the **master** branch
-2. Run `npm install`
+2. Run `npm ci`
 3. If you're working on voice, also run `npm install @discordjs/opus` or `npm install opusscript`
 4. Code your heart out!
 5. Run `npm test` to run ESLint and ensure any JSDoc changes are valid
-6. [Submit a pull request](https://github.com/discordjs/discord.js/compare)
+6. [Submit a pull request](https://github.com/discordjs/discord.js/compare) (Make sure you follow the [conventional commit format](https://github.com/discordjs/discord.js-next/blob/master/.github/COMMIT_CONVENTION.md))

.github/ISSUE_TEMPLATE/bug_report.md

@@ -28,6 +28,12 @@ You won't receive any basic help here.
 - Operating system:
 - Priority this issue should have – please be realistic and elaborate if possible:
 
+**Relevant client options:**
+
+- partials: none
+- gateway intents: none
+- other: none
+
 <!--
 If this applies to you, please check the respective checkbox: [ ] becomes [x].
 You don't have to modify the text to suit your particular situation – if you want to

.github/ISSUE_TEMPLATE/config.yml

@@ -1,5 +1,5 @@
 blank_issues_enabled: false
 contact_links:
-  - name: discord.js discord server
+  - name: Discord server
     url: https://discord.gg/bRCvFy9
-    about: Please use this Discord Server to ask questions and get support. We don't typically answer questions here and they will likely be closed and redirected to the Discord server.
+    about: Have questions or need support? Please go to the Discord server, as issues that are just support-related will be closed and redirected there.

.github/tsc.json

@@ -0,0 +1,18 @@
+{
+  "problemMatcher": [
+      {
+          "owner": "tsc",
+          "pattern": [
+              {
+                  "regexp": "^(?:\\s+\\d+\\>)?([^\\s].*)\\((\\d+),(\\d+)\\)\\s*:\\s+(error|warning|info)\\s+(\\w{1,2}\\d+)\\s*:\\s*(.*)$",
+                  "file": 1,
+                  "line": 2,
+                  "column": 3,
+                  "severity": 4,
+                  "code": 5,
+                  "message": 6
+              }
+          ]
+      }
+  ]
+}

.github/workflows/codeql-analysis.yml

@@ -0,0 +1,27 @@
+name: "CodeQL"
+on:
+  push:
+  pull_request:
+  schedule:
+    - cron: '0 */12 * * 4'
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+      with:
+        fetch-depth: 2
+
+    - run: git checkout HEAD^2
+      if: ${{ github.event_name == 'pull_request' }}
+
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v1
+      with:
+        languages: javascript
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v1

.github/workflows/deploy.yml

@@ -15,13 +15,13 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@master
 
-      - name: Install Node v12
+      - name: Install Node v14
         uses: actions/setup-node@master
         with:
-          node-version: 12
+          node-version: 14
 
       - name: Install dependencies
-        run: npm install
+        run: npm ci
 
       - name: Build and deploy documentation
         uses: discordjs/action-docs@v1
@@ -35,13 +35,13 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@master
 
-      - name: Install Node v12
+      - name: Install Node v14
         uses: actions/setup-node@master
         with:
-          node-version: 12
+          node-version: 14
 
       - name: Install dependencies
-        run: npm install
+        run: npm ci
 
       - name: Build and deploy webpack
         uses: discordjs/action-webpack@v1

.github/workflows/test-cron.yml

@@ -10,13 +10,13 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v1
 
-      - name: Install Node v12
+      - name: Install Node v14
         uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: 14
 
       - name: Install dependencies
-        run: npm install
+        run: npm ci
 
       - name: Run ESLint
         uses: icrawl/action-eslint@v1
@@ -28,17 +28,38 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v1
 
-      - name: Install Node v12
+      - name: Install Node v14
         uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: 14
 
       - name: Install dependencies
-        run: npm install
+        run: npm ci
 
       - name: Run TSLint
         run: npm run lint:typings
 
+  typescript:
+    name: TypeScript
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Install Node v14
+        uses: actions/setup-node@v1
+        with:
+          node-version: 14
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Register Problem Matcher
+        run: echo "##[add-matcher].github/tsc.json"
+
+      - name: Run TypeScript compiler
+        run: npm run test:typescript
+
   docs:
     name: Documentation
     runs-on: ubuntu-latest
@@ -46,13 +67,13 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v1
 
-      - name: Install Node v12
+      - name: Install Node v14
         uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: 14
 
       - name: Install dependencies
-        run: npm install
+        run: npm ci
 
       - name: Test documentation
         run: npm run docs:test

.github/workflows/test.yml

@@ -8,13 +8,13 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v2
 
-      - name: Install Node v12
+      - name: Install Node v14
         uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: 14
 
       - name: Install dependencies
-        run: npm install
+        run: npm ci
 
       - name: Run ESLint
         uses: icrawl/action-eslint@v1
@@ -26,17 +26,38 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v2
 
-      - name: Install Node v12
+      - name: Install Node v14
         uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: 14
 
       - name: Install dependencies
-        run: npm install
+        run: npm ci
 
       - name: Run TSLint
         run: npm run lint:typings
 
+  typescript:
+    name: TypeScript
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Install Node v14
+        uses: actions/setup-node@v1
+        with:
+          node-version: 14
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Register Problem Matcher
+        run: echo "##[add-matcher].github/tsc.json"
+
+      - name: Run TypeScript compiler
+        run: npm run test:typescript
+
   docs:
     name: Documentation
     runs-on: ubuntu-latest
@@ -44,13 +65,13 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v2
 
-      - name: Install Node v12
+      - name: Install Node v14
         uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: 14
 
       - name: Install dependencies
-        run: npm install
+        run: npm ci
 
       - name: Test documentation
         run: npm run docs:test

.gitignore

@@ -1,7 +1,6 @@
 # Packages
 node_modules/
 yarn.lock
-package-lock.json
 
 # Log files
 logs/
@@ -18,5 +17,7 @@ deploy/deploy_key.pub
 # Miscellaneous
 .tmp/
 .vscode/
+.idea/
 docs/docs.json
+typings/index.js
 webpack/

.npmrc

@@ -1 +0,0 @@
-package-lock=false

README.md

@@ -5,7 +5,7 @@
   </p>
   <br />
   <p>
-    <a href="https://discord.gg/bRCvFy9"><img src="https://discordapp.com/api/guilds/222078108977594368/embed.png" alt="Discord server" /></a>
+    <a href="https://discord.gg/bRCvFy9"><img src="https://img.shields.io/discord/222078108977594368?color=7289da&logo=discord&logoColor=white" alt="Discord server" /></a>
     <a href="https://www.npmjs.com/package/discord.js"><img src="https://img.shields.io/npm/v/discord.js.svg?maxAge=3600" alt="NPM version" /></a>
     <a href="https://www.npmjs.com/package/discord.js"><img src="https://img.shields.io/npm/dt/discord.js.svg?maxAge=3600" alt="NPM downloads" /></a>
     <a href="https://github.com/discordjs/discord.js/actions"><img src="https://github.com/discordjs/discord.js/workflows/Testing/badge.svg" alt="Build status" /></a>
@@ -19,6 +19,7 @@
 
 ## Table of contents
 
+- [Changes](#changes)
 - [About](#about)
 - [Installation](#installation)
   - [Audio engines](#audio-engines)
@@ -29,10 +30,14 @@
 - [Contributing](#contributing)
 - [Help](#help)
 
+## Changes
+
+This fork has the inline replies and slash commands for **testing** purposes.
+
 ## About
 
 discord.js is a powerful [Node.js](https://nodejs.org) module that allows you to easily interact with the
-[Discord API](https://discordapp.com/developers/docs/intro).
+[Discord API](https://discord.com/developers/docs/intro).
 
 - Object-oriented
 - Predictable abstractions
@@ -41,7 +46,7 @@ discord.js is a powerful [Node.js](https://nodejs.org) module that allows you to
 
 ## Installation
 
-**Node.js 12.0.0 or newer is required.**  
+**Node.js 14.0.0 or newer is required.**  
 Ignore any warnings about unmet peer dependencies, as they're all optional.
 
 Without voice support: `npm install discord.js`  
@@ -57,7 +62,7 @@ For production bots, using @discordjs/opus should be considered a necessity, esp
 ### Optional packages
 
 - [zlib-sync](https://www.npmjs.com/package/zlib-sync) for WebSocket data compression and inflation (`npm install zlib-sync`)
-- [erlpack](https://github.com/discordapp/erlpack) for significantly faster WebSocket data (de)serialisation (`npm install discordapp/erlpack`)
+- [erlpack](https://github.com/discord/erlpack) for significantly faster WebSocket data (de)serialisation (`npm install discord/erlpack`)
 - One of the following packages can be installed for faster voice packet encryption and decryption:
   - [sodium](https://www.npmjs.com/package/sodium) (`npm install sodium`)
   - [libsodium.js](https://www.npmjs.com/package/libsodium-wrappers) (`npm install libsodium-wrappers`)
@@ -76,7 +81,7 @@ client.on('ready', () => {
 
 client.on('message', msg => {
   if (msg.content === 'ping') {
-    msg.reply('pong');
+    msg.channel.send('pong');
   }
 });
 

docs/examples/attachments.md

@@ -33,7 +33,7 @@ client.on('message', message => {
   }
 });
 
-// Log our bot in using the token from https://discordapp.com/developers/applications/me
+// Log our bot in using the token from https://discord.com/developers/applications
 client.login('your token here');
 ```
 
@@ -68,7 +68,7 @@ client.on('message', message => {
   }
 });
 
-// Log our bot in using the token from https://discordapp.com/developers/applications/me
+// Log our bot in using the token from https://discord.com/developers/applications
 client.login('your token here');
 ```
 
@@ -105,13 +105,13 @@ client.on('message', message => {
   }
 });
 
-// Log our bot in using the token from https://discordapp.com/developers/applications/me
+// Log our bot in using the token from https://discord.com/developers/applications
 client.login('your token here');
 ```
 
 The results are the same as the URL examples:
 
-![Image showing result](/static/attachment-example1.png)
+![Image showing result](/static/attachment-example2.png)
 
 But what if you have a buffer from an image? Or a text document? Well, it's the same as sending a local file or a URL!
 
@@ -154,7 +154,7 @@ client.on('message', message => {
   }
 });
 
-// Log our bot in using the token from https://discordapp.com/developers/applications/me
+// Log our bot in using the token from https://discord.com/developers/applications
 client.login('your token here');
 ```
 

docs/examples/avatars.js

@@ -23,9 +23,9 @@ client.on('message', message => {
   // If the message is "what is my avatar"
   if (message.content === 'what is my avatar') {
     // Send the user's avatar URL
-    message.reply(message.author.displayAvatarURL());
+    message.channel.send(message.author.displayAvatarURL());
   }
 });
 
-// Log our bot in using the token from https://discordapp.com/developers/applications/me
+// Log our bot in using the token from https://discord.com/developers/applications
 client.login('your token here');

docs/examples/embed.js

@@ -36,5 +36,5 @@ client.on('message', message => {
   }
 });
 
-// Log our bot in using the token from https://discordapp.com/developers/applications/me
+// Log our bot in using the token from https://discord.com/developers/applications
 client.login('your token here');

docs/examples/greeting.js

@@ -28,5 +28,5 @@ client.on('guildMemberAdd', member => {
   channel.send(`Welcome to the server, ${member}`);
 });
 
-// Log our bot in using the token from https://discordapp.com/developers/applications/me
+// Log our bot in using the token from https://discord.com/developers/applications
 client.login('your token here');

docs/examples/moderation.md

@@ -33,7 +33,7 @@ client.on('message', message => {
     // If we have a user mentioned
     if (user) {
       // Now we get the member from the user
-      const member = message.guild.member(user);
+      const member = message.guild.members.resolve(user);
       // If the member is in the guild
       if (member) {
         /**
@@ -45,28 +45,28 @@ client.on('message', message => {
           .kick('Optional reason that will display in the audit logs')
           .then(() => {
             // We let the message author know we were able to kick the person
-            message.reply(`Successfully kicked ${user.tag}`);
+            message.channel.send(`Successfully kicked ${user.tag}`);
           })
           .catch(err => {
             // An error happened
             // This is generally due to the bot not being able to kick the member,
             // either due to missing permissions or role hierarchy
-            message.reply('I was unable to kick the member');
+            message.channel.send('I was unable to kick the member');
             // Log the error
             console.error(err);
           });
       } else {
         // The mentioned user isn't in this guild
-        message.reply("That user isn't in this guild!");
+        message.channel.send("That user isn't in this guild!");
       }
       // Otherwise, if no user was mentioned
     } else {
-      message.reply("You didn't mention the user to kick!");
+      message.channel.send("You didn't mention the user to kick!");
     }
   }
 });
 
-// Log our bot in using the token from https://discordapp.com/developers/applications/me
+// Log our bot in using the token from https://discord.com/developers/applications
 client.login('your token here');
 ```
 
@@ -105,7 +105,7 @@ client.on('message', message => {
     // If we have a user mentioned
     if (user) {
       // Now we get the member from the user
-      const member = message.guild.member(user);
+      const member = message.guild.members.resolve(user);
       // If the member is in the guild
       if (member) {
         /**
@@ -121,28 +121,28 @@ client.on('message', message => {
           })
           .then(() => {
             // We let the message author know we were able to ban the person
-            message.reply(`Successfully banned ${user.tag}`);
+            message.channel.send(`Successfully banned ${user.tag}`);
           })
           .catch(err => {
             // An error happened
             // This is generally due to the bot not being able to ban the member,
             // either due to missing permissions or role hierarchy
-            message.reply('I was unable to ban the member');
+            message.channel.send('I was unable to ban the member');
             // Log the error
             console.error(err);
           });
       } else {
         // The mentioned user isn't in this guild
-        message.reply("That user isn't in this guild!");
+        message.channel.send("That user isn't in this guild!");
       }
     } else {
       // Otherwise, if no user was mentioned
-      message.reply("You didn't mention the user to ban!");
+      message.channel.send("You didn't mention the user to ban!");
     }
   }
 });
 
-// Log our bot in using the token from https://discordapp.com/developers/applications/me
+// Log our bot in using the token from https://discord.com/developers/applications
 client.login('your token here');
 ```
 

docs/examples/ping.js

@@ -27,5 +27,5 @@ client.on('message', message => {
   }
 });
 
-// Log our bot in using the token from https://discordapp.com/developers/applications/me
+// Log our bot in using the token from https://discord.com/developers/applications
 client.login('your token here');

docs/examples/webhook.js

@@ -6,8 +6,13 @@
 
 // Import the discord.js module
 const Discord = require('discord.js');
-
-// Create a new webhook
+/*
+ * Create a new webhook
+ * The Webhooks ID and token can be found in the URL, when you request that URL, or in the response body.
+ * https://discord.com/api/webhooks/12345678910/T0kEn0fw3Bh00K
+ *                                  ^^^^^^^^^^  ^^^^^^^^^^^^ 
+ *                                  Webhook ID  Webhook Token
+ */
 const hook = new Discord.WebhookClient('webhook id', 'webhook token');
 
 // Send a message using the webhook

docs/general/faq.md

@@ -4,7 +4,7 @@ These questions are some of the most frequently asked.
 
 ## No matter what, I get `SyntaxError: Block-scoped declarations (let, const, function, class) not yet supported outside strict mode`‽
 
-Update to Node.js 12.0.0 or newer.
+Update to Node.js 14.0.0 or newer.
 
 ## How do I get voice working?
 

docs/general/welcome.md

@@ -5,7 +5,7 @@
   </p>
   <br />
   <p>
-    <a href="https://discord.gg/bRCvFy9"><img src="https://discordapp.com/api/guilds/222078108977594368/embed.png" alt="Discord server" /></a>
+    <a href="https://discord.gg/bRCvFy9"><img src="https://img.shields.io/discord/222078108977594368?color=7289da&logo=discord&logoColor=white" alt="Discord server" /></a>
     <a href="https://www.npmjs.com/package/discord.js"><img src="https://img.shields.io/npm/v/discord.js.svg?maxAge=3600" alt="NPM version" /></a>
     <a href="https://www.npmjs.com/package/discord.js"><img src="https://img.shields.io/npm/dt/discord.js.svg?maxAge=3600" alt="NPM downloads" /></a>
     <a href="https://travis-ci.org/discordjs/discord.js"><img src="https://travis-ci.org/discordjs/discord.js.svg" alt="Build status" /></a>
@@ -24,7 +24,7 @@ Welcome to the discord.js v12 documentation.
 ## About
 
 discord.js is a powerful [Node.js](https://nodejs.org) module that allows you to easily interact with the
-[Discord API](https://discordapp.com/developers/docs/intro).
+[Discord API](https://discord.com/developers/docs/intro).
 
 - Object-oriented
 - Predictable abstractions
@@ -33,7 +33,7 @@ discord.js is a powerful [Node.js](https://nodejs.org) module that allows you to
 
 ## Installation
 
-**Node.js 12.0.0 or newer is required.**  
+**Node.js 14.0.0 or newer is required.**  
 Ignore any warnings about unmet peer dependencies, as they're all optional.
 
 Without voice support: `npm install discord.js`  
@@ -49,7 +49,7 @@ For production bots, using @discordjs/opus should be considered a necessity, esp
 ### Optional packages
 
 - [zlib-sync](https://www.npmjs.com/package/zlib-sync) for WebSocket data compression and inflation (`npm install zlib-sync`)
-- [erlpack](https://github.com/discordapp/erlpack) for significantly faster WebSocket data (de)serialisation (`npm install discordapp/erlpack`)
+- [erlpack](https://github.com/discord/erlpack) for significantly faster WebSocket data (de)serialisation (`npm install discord/erlpack`)
 - One of the following packages can be installed for faster voice packet encryption and decryption:
   - [sodium](https://www.npmjs.com/package/sodium) (`npm install sodium`)
   - [libsodium.js](https://www.npmjs.com/package/libsodium-wrappers) (`npm install libsodium-wrappers`)
@@ -68,7 +68,7 @@ client.on('ready', () => {
 
 client.on('message', msg => {
   if (msg.content === 'ping') {
-    msg.reply('pong');
+    msg.channel.send('pong');
   }
 });
 

docs/topics/voice.md

@@ -37,7 +37,7 @@ client.on('message', async message => {
     if (message.member.voice.channel) {
       const connection = await message.member.voice.channel.join();
     } else {
-      message.reply('You need to join a voice channel first!');
+      message.channel.send('You need to join a voice channel first!');
     }
   }
 });

esm/discord.mjs

@@ -0,0 +1,96 @@
+import Discord from '../src/index.js';
+
+export default Discord;
+
+export const {
+  BaseClient,
+  Client,
+  Shard,
+  ShardClientUtil,
+  ShardingManager,
+  WebhookClient,
+  ActivityFlags,
+  BitField,
+  Collection,
+  Constants,
+  DataResolver,
+  BaseManager,
+  DiscordAPIError,
+  HTTPError,
+  MessageFlags,
+  Intents,
+  Permissions,
+  Speaking,
+  Snowflake,
+  SnowflakeUtil,
+  Structures,
+  SystemChannelFlags,
+  UserFlags,
+  Util,
+  version,
+  BaseGuildEmojiManager,
+  ChannelManager,
+  GuildChannelManager,
+  GuildEmojiManager,
+  GuildEmojiRoleManager,
+  GuildMemberManager,
+  GuildMemberRoleManager,
+  GuildManager,
+  ReactionManager,
+  ReactionUserManager,
+  MessageManager,
+  PresenceManager,
+  RoleManager,
+  UserManager,
+  discordSort,
+  escapeMarkdown,
+  fetchRecommendedShards,
+  resolveColor,
+  resolveString,
+  splitMessage,
+  Application,
+  Base,
+  Activity,
+  APIMessage,
+  BaseGuildEmoji,
+  CategoryChannel,
+  Channel,
+  ClientApplication,
+  ClientUser,
+  Collector,
+  DMChannel,
+  Emoji,
+  Guild,
+  GuildAuditLogs,
+  GuildChannel,
+  GuildEmoji,
+  GuildMember,
+  GuildPreview,
+  GuildTemplate,
+  Integration,
+  Invite,
+  Message,
+  MessageAttachment,
+  MessageCollector,
+  MessageEmbed,
+  MessageMentions,
+  MessageReaction,
+  NewsChannel,
+  PermissionOverwrites,
+  Presence,
+  ClientPresence,
+  ReactionCollector,
+  ReactionEmoji,
+  RichPresenceAssets,
+  Role,
+  StoreChannel,
+  Team,
+  TeamMember,
+  TextChannel,
+  User,
+  VoiceChannel,
+  VoiceRegion,
+  VoiceState,
+  Webhook,
+  WebSocket
+} = Discord;

package.json

@@ -1,17 +1,28 @@
 {
   "name": "discord.js",
-  "version": "12.1.0",
+  "version": "12.5.0",
   "description": "A powerful library for interacting with the Discord API",
   "main": "./src/index",
   "types": "./typings/index.d.ts",
+  "exports": {
+    ".": [
+      {
+        "require": "./src/index.js",
+        "import": "./esm/discord.mjs"
+      },
+      "./src/index.js"
+    ],
+    "./esm": "./esm/discord.mjs"
+  },
   "scripts": {
     "test": "npm run lint && npm run docs:test && npm run lint:typings",
+    "test:typescript": "tsc",
     "docs": "docgen --source src --custom docs/index.yml --output docs/docs.json",
     "docs:test": "docgen --source src --custom docs/index.yml",
     "lint": "eslint src",
     "lint:fix": "eslint src --fix",
     "lint:typings": "tslint typings/index.d.ts",
-    "prettier": "prettier --write --single-quote --print-width 120 --trailing-comma all --end-of-line lf src/**/*.js typings/**/*.ts",
+    "prettier": "prettier --write src/**/*.js typings/**/*.ts",
     "build:browser": "webpack",
     "prepublishOnly": "npm run test && cross-env NODE_ENV=production npm run build:browser"
   },
@@ -36,68 +47,40 @@
   "runkitExampleFilename": "./docs/examples/ping.js",
   "unpkg": "./webpack/discord.min.js",
   "dependencies": {
-    "@discordjs/collection": "^0.1.5",
+    "@discordjs/collection": "^0.1.6",
+    "@discordjs/form-data": "^3.0.1",
     "abort-controller": "^3.0.0",
-    "form-data": "^3.0.0",
-    "node-fetch": "^2.6.0",
-    "prism-media": "^1.2.0",
+    "node-fetch": "^2.6.1",
+    "prism-media": "^1.2.2",
     "setimmediate": "^1.0.5",
     "tweetnacl": "^1.0.3",
-    "ws": "^7.2.1"
-  },
-  "peerDependencies": {
-    "bufferutil": "^4.0.1",
-    "erlpack": "discordapp/erlpack",
-    "libsodium-wrappers": "^0.7.6",
-    "sodium": "^3.0.2",
-    "utf-8-validate": "^5.0.2",
-    "zlib-sync": "^0.1.6"
-  },
-  "peerDependenciesMeta": {
-    "bufferutil": {
-      "optional": true
-    },
-    "erlpack": {
-      "optional": true
-    },
-    "libsodium-wrappers": {
-      "optional": true
-    },
-    "sodium": {
-      "optional": true
-    },
-    "utf-8-validate": {
-      "optional": true
-    },
-    "zlib-sync": {
-      "optional": true
-    }
+    "ws": "^7.3.1"
   },
   "devDependencies": {
-    "@commitlint/cli": "^8.3.5",
-    "@commitlint/config-angular": "^8.3.4",
-    "@types/node": "^10.12.24",
-    "@types/ws": "^7.2.1",
+    "@commitlint/cli": "^11.0.0",
+    "@commitlint/config-angular": "^11.0.0",
+    "@types/node": "^12.12.6",
+    "@types/ws": "^7.2.7",
     "cross-env": "^7.0.2",
-    "discord.js-docgen": "discordjs/docgen",
-    "dtslint": "^3.0.0",
-    "eslint": "^6.8.0",
-    "eslint-config-prettier": "^6.10.0",
-    "eslint-plugin-import": "^2.20.1",
-    "eslint-plugin-prettier": "^3.1.2",
-    "husky": "^4.2.3",
-    "jest": "^25.1.0",
+    "discord.js-docgen": "git+https://github.com/discordjs/docgen.git",
+    "dtslint": "^4.0.4",
+    "eslint": "^7.11.0",
+    "eslint-config-prettier": "^6.13.0",
+    "eslint-plugin-import": "^2.22.1",
+    "eslint-plugin-prettier": "^3.1.4",
+    "husky": "^4.3.0",
+    "jest": "^26.6.0",
     "json-filter-loader": "^1.0.0",
-    "lint-staged": "^10.0.8",
-    "prettier": "^1.19.1",
-    "terser-webpack-plugin": "^1.2.2",
-    "tslint": "^6.0.0",
-    "typescript": "^3.8.2",
-    "webpack": "^4.41.6",
-    "webpack-cli": "^3.3.11"
+    "lint-staged": "^10.4.2",
+    "prettier": "^2.1.2",
+    "terser-webpack-plugin": "^4.2.3",
+    "tslint": "^6.1.3",
+    "typescript": "^4.0.3",
+    "webpack": "^4.44.2",
+    "webpack-cli": "^3.3.12"
   },
   "engines": {
-    "node": ">=12.0.0"
+    "node": ">=14.0.0"
   },
   "browser": {
     "@discordjs/opus": false,
@@ -127,9 +110,9 @@
     "src/client/voice/receiver/PacketHandler.js": false,
     "src/client/voice/receiver/Receiver.js": false,
     "src/client/voice/util/PlayInterface.js": false,
-    "src/client/voice/util/Secretbox.js": false,
     "src/client/voice/util/Silence.js": false,
-    "src/client/voice/util/VolumeInterface.js": false
+    "src/client/voice/util/VolumeInterface.js": false,
+    "src/util/Sodium.js": false
   },
   "husky": {
     "hooks": {
@@ -139,7 +122,7 @@
   },
   "lint-staged": {
     "*.js": "eslint --fix",
-    "*.ts": "prettier --write --single-quote --print-width 120 --trailing-comma all --end-of-line lf"
+    "*.ts": "prettier --write"
   },
   "commitlint": {
     "extends": [
@@ -169,5 +152,12 @@
         ]
       ]
     }
+  },
+  "prettier": {
+    "singleQuote": true,
+    "printWidth": 120,
+    "trailingComma": "all",
+    "endOfLine": "lf",
+    "arrowParens": "avoid"
   }
 }

src/client/BaseClient.js

@@ -139,6 +139,28 @@ class BaseClient extends EventEmitter {
     this._immediates.delete(immediate);
   }
 
+  /**
+   * Increments max listeners by one, if they are not zero.
+   * @private
+   */
+  incrementMaxListeners() {
+    const maxListeners = this.getMaxListeners();
+    if (maxListeners !== 0) {
+      this.setMaxListeners(maxListeners + 1);
+    }
+  }
+
+  /**
+   * Decrements max listeners by one, if they are not zero.
+   * @private
+   */
+  decrementMaxListeners() {
+    const maxListeners = this.getMaxListeners();
+    if (maxListeners !== 0) {
+      this.setMaxListeners(maxListeners - 1);
+    }
+  }
+
   toJSON(...props) {
     return Util.flatten(this, { domain: false }, ...props);
   }

src/client/Client.js

@@ -1,17 +1,19 @@
 'use strict';
 
 const BaseClient = require('./BaseClient');
+const InteractionClient = require('./InteractionClient');
 const ActionsManager = require('./actions/ActionsManager');
 const ClientVoiceManager = require('./voice/ClientVoiceManager');
 const WebSocketManager = require('./websocket/WebSocketManager');
 const { Error, TypeError, RangeError } = require('../errors');
+const BaseGuildEmojiManager = require('../managers/BaseGuildEmojiManager');
 const ChannelManager = require('../managers/ChannelManager');
-const GuildEmojiManager = require('../managers/GuildEmojiManager');
 const GuildManager = require('../managers/GuildManager');
 const UserManager = require('../managers/UserManager');
 const ShardClientUtil = require('../sharding/ShardClientUtil');
 const ClientApplication = require('../structures/ClientApplication');
 const GuildPreview = require('../structures/GuildPreview');
+const GuildTemplate = require('../structures/GuildTemplate');
 const Invite = require('../structures/Invite');
 const VoiceRegion = require('../structures/VoiceRegion');
 const Webhook = require('../structures/Webhook');
@@ -102,6 +104,12 @@ class Client extends BaseClient {
         ? ShardClientUtil.singleton(this, process.env.SHARDING_MANAGER_MODE)
         : null;
 
+    /**
+     * The interaction client.
+     * @type {InteractionClient}
+     */
+    this.interactionClient = new InteractionClient(options, this);
+
     /**
      * All of the {@link User} objects that have been cached at any point, mapped by their IDs
      * @type {UserManager}
@@ -135,7 +143,8 @@ class Client extends BaseClient {
     Object.defineProperty(this, 'token', { writable: true });
     if (!browser && !this.token && 'DISCORD_TOKEN' in process.env) {
       /**
-       * Authorization token for the logged in bot
+       * Authorization token for the logged in bot.
+       * If present, this defaults to `process.env.DISCORD_TOKEN` when instantiating the client
        * <warn>This should be kept private at all times.</warn>
        * @type {?string}
        */
@@ -164,11 +173,11 @@ class Client extends BaseClient {
 
   /**
    * All custom emojis that the client has access to, mapped by their IDs
-   * @type {GuildEmojiManager}
+   * @type {BaseGuildEmojiManager}
    * @readonly
    */
   get emojis() {
-    const emojis = new GuildEmojiManager({ client: this });
+    const emojis = new BaseGuildEmojiManager(this);
     for (const guild of this.guilds.cache.values()) {
       if (guild.available) for (const emoji of guild.emojis.cache.values()) emojis.cache.set(emoji.id, emoji);
     }
@@ -195,7 +204,7 @@ class Client extends BaseClient {
 
   /**
    * Logs the client in, establishing a websocket connection to Discord.
-   * @param {string} token Token of the account to log in with
+   * @param {string} [token=this.token] Token of the account to log in with
    * @returns {Promise<string>} Token of the account used
    * @example
    * client.login('my token');
@@ -253,6 +262,23 @@ class Client extends BaseClient {
       .then(data => new Invite(this, data));
   }
 
+  /**
+   * Obtains a template from Discord.
+   * @param {GuildTemplateResolvable} template Template code or URL
+   * @returns {Promise<GuildTemplate>}
+   * @example
+   * client.fetchGuildTemplate('https://discord.new/FKvmczH2HyUf')
+   *   .then(template => console.log(`Obtained template with code: ${template.code}`))
+   *   .catch(console.error);
+   */
+  fetchGuildTemplate(template) {
+    const code = DataResolver.resolveGuildTemplateCode(template);
+    return this.api.guilds
+      .templates(code)
+      .get()
+      .then(data => new GuildTemplate(this, data));
+  }
+
   /**
    * Obtains a webhook from Discord.
    * @param {Snowflake} id ID of the webhook
@@ -340,7 +366,7 @@ class Client extends BaseClient {
   }
 
   /**
-   * Obtains a guild preview from Discord, only available for public guilds.
+   * Obtains a guild preview from Discord, available for all guilds the bot is in and all Discoverable guilds.
    * @param {GuildResolvable} guild The guild to fetch the preview for
    * @returns {Promise<GuildPreview>}
    */
@@ -355,28 +381,43 @@ class Client extends BaseClient {
 
   /**
    * Generates a link that can be used to invite the bot to a guild.
-   * @param {PermissionResolvable} [permissions] Permissions to request
+   * @param {InviteGenerationOptions|PermissionResolvable} [options] Permissions to request
    * @returns {Promise<string>}
    * @example
-   * client.generateInvite(['SEND_MESSAGES', 'MANAGE_GUILD', 'MENTION_EVERYONE'])
+   * client.generateInvite({
+   *   permissions: ['SEND_MESSAGES', 'MANAGE_GUILD', 'MENTION_EVERYONE'],
+   * })
    *   .then(link => console.log(`Generated bot invite link: ${link}`))
    *   .catch(console.error);
    */
-  async generateInvite(permissions) {
-    permissions = Permissions.resolve(permissions);
+  async generateInvite(options = {}) {
+    if (Array.isArray(options) || ['string', 'number'].includes(typeof options) || options instanceof Permissions) {
+      process.emitWarning(
+        'Client#generateInvite: Generate invite with an options object instead of a PermissionResolvable',
+        'DeprecationWarning',
+      );
+      options = { permissions: options };
+    }
     const application = await this.fetchApplication();
     const query = new URLSearchParams({
       client_id: application.id,
-      permissions: permissions,
+      permissions: Permissions.resolve(options.permissions),
       scope: 'bot',
     });
+    if (typeof options.disableGuildSelect === 'boolean') {
+      query.set('disable_guild_select', options.disableGuildSelect.toString());
+    }
+    if (typeof options.guild !== 'undefined') {
+      const guildID = this.guilds.resolveID(options.guild);
+      if (!guildID) throw new TypeError('INVALID_TYPE', 'options.guild', 'GuildResolvable');
+      query.set('guild_id', guildID);
+    }
     return `${this.options.http.api}${this.api.oauth2.authorize}?${query}`;
   }
 
   toJSON() {
     return super.toJSON({
       readyAt: false,
-      presences: false,
     });
   }
 
@@ -416,6 +457,13 @@ class Client extends BaseClient {
     if (typeof options.messageSweepInterval !== 'number' || isNaN(options.messageSweepInterval)) {
       throw new TypeError('CLIENT_INVALID_OPTION', 'messageSweepInterval', 'a number');
     }
+    if (
+      typeof options.messageEditHistoryMaxSize !== 'number' ||
+      isNaN(options.messageEditHistoryMaxSize) ||
+      options.messageEditHistoryMaxSize < -1
+    ) {
+      throw new TypeError('CLIENT_INVALID_OPTION', 'messageEditHistoryMaxSize', 'a number greater than or equal to -1');
+    }
     if (typeof options.fetchAllMembers !== 'boolean') {
       throw new TypeError('CLIENT_INVALID_OPTION', 'fetchAllMembers', 'a boolean');
     }
@@ -442,6 +490,14 @@ class Client extends BaseClient {
 
 module.exports = Client;
 
+/**
+ * Options for {@link Client#generateInvite}.
+ * @typedef {Object} InviteGenerationOptions
+ * @property {PermissionResolvable} [permissions] Permissions to request
+ * @property {GuildResolvable} [guild] Guild to preselect
+ * @property {boolean} [disableGuildSelect] Whether to disable the guild selection
+ */
+
 /**
  * Emitted for general warnings.
  * @event Client#warn

src/client/InteractionClient.js

@@ -0,0 +1,207 @@
+'use strict';
+
+const BaseClient = require('./BaseClient');
+const ApplicationCommand = require('../structures/ApplicationCommand');
+const Interaction = require('../structures/Interaction');
+const { Events, ApplicationCommandOptionType, InteractionType, InteractionResponseType } = require('../util/Constants');
+
+let sodium;
+
+/**
+ * Interaction client is used for interactions.
+ *
+ * @example
+ * const client = new InteractionClient({
+ *   token: ABC,
+ *   publicKey: XYZ,
+ * });
+ *
+ * client.on('interactionCreate', () => {
+ *   // automatically handles long responses
+ *   if (will take a long time) {
+ *     doSomethingLong.then((d) => {
+ *       interaction.reply({
+ *         content: 'wow that took long',
+ *       });
+ *     });
+ *   } else {
+ *     interaction.reply('hi!');
+ *   }
+ * });
+ * ```
+ */
+class InteractionClient extends BaseClient {
+  /**
+   * @param {Options} options Options for the client.
+   * @param {undefined} client For internal use.
+   */
+  constructor(options, client) {
+    super(options);
+
+    Object.defineProperty(this, 'token', {
+      value: options.token,
+      writable: true,
+    });
+
+    Object.defineProperty(this, 'clientID', {
+      value: options.clientID,
+      writable: true,
+    });
+
+    Object.defineProperty(this, 'publicKey', {
+      value: options.publicKey ? Buffer.from(options.publicKey, 'hex') : undefined,
+      writable: true,
+    });
+
+    // Compat for direct usage
+    this.client = client || this;
+    this.interactionClient = this;
+  }
+
+  /**
+   * Get registered slash commands.
+   * @param {Snowflake} [guildID] Optional guild ID.
+   * @returns {Command[]}
+   */
+  async getCommands(guildID) {
+    let path = this.client.api.applications('@me');
+    if (guildID) {
+      path = path.guilds(guildID);
+    }
+    const commands = await path.commands.get();
+    return commands.map(c => new ApplicationCommand(this, c, guildID));
+  }
+
+  /**
+   * Create a command.
+   * @param {Object} command The command description.
+   * @param {Snowflake?} guildID Optional guild ID.
+   * @returns {Promise<ApplicationCommand>} The created command.
+   */
+  async createCommand(command, guildID) {
+    let path = this.client.api.applications(this.client.user.id);
+    if (guildID) {
+      path = path.guilds(guildID);
+    }
+    const c = await path.commands.post({
+      data: {
+        name: command.name,
+        description: command.description,
+        options: command.options.map(function m(o) {
+          return {
+            type: ApplicationCommandOptionType[o.type],
+            name: o.name,
+            description: o.description,
+            default: o.default,
+            required: o.required,
+            choices: o.choices,
+            options: o.options ? o.options.map(m) : undefined,
+          };
+        }),
+      },
+    });
+    return new ApplicationCommand(this, c, guildID);
+  }
+
+  handle(data) {
+    switch (data.type) {
+      case InteractionType.PING:
+        return {
+          type: InteractionResponseType.PONG,
+        };
+      case InteractionType.APPLICATION_COMMAND: {
+        let timedOut = false;
+        let resolve;
+        const directPromise = new Promise(r => {
+          resolve = r;
+          this.client.setTimeout(() => {
+            timedOut = true;
+            r({
+              type: InteractionResponseType.ACKNOWLEDGE_WITH_SOURCE,
+            });
+          }, 250);
+        });
+
+        const syncHandle = {
+          acknowledge() {
+            if (!timedOut) {
+              resolve({
+                type: InteractionResponseType.ACKNOWLEDGE_WITH_SOURCE,
+              });
+            }
+          },
+          reply(resolved) {
+            if (timedOut) {
+              return false;
+            }
+            resolve({
+              type: InteractionResponseType.CHANNEL_MESSAGE_WITH_SOURCE,
+              data: resolved.data,
+            });
+            return true;
+          },
+        };
+
+        const interaction = new Interaction(this.client, data, syncHandle);
+
+        /**
+         * Emitted when an interaction is created.
+         * @event Client#interactionCreate
+         * @param {Interaction} interaction The interaction which was created.
+         */
+        this.client.emit(Events.INTERACTION_CREATE, interaction);
+
+        return directPromise;
+      }
+      default:
+        throw new RangeError('Invalid interaction data');
+    }
+  }
+
+  /**
+   * An express-like middleware factory which can be used
+   * with webhook interactions.
+   * @returns {Function} The middleware function.
+   */
+  middleware() {
+    return async (req, res) => {
+      const timestamp = req.get('x-signature-timestamp');
+      const signature = req.get('x-signature-ed25519');
+
+      const chunks = [];
+      for await (const chunk of req) {
+        chunks.push(chunk);
+      }
+      const body = Buffer.concat(chunks);
+
+      if (sodium === undefined) {
+        sodium = require('../util/Sodium');
+      }
+      if (
+        !sodium.methods.verify(
+          Buffer.from(signature, 'hex'),
+          Buffer.concat([Buffer.from(timestamp), body]),
+          this.publicKey,
+        )
+      ) {
+        res.status(403).end();
+        return;
+      }
+
+      const data = JSON.parse(body.toString());
+
+      const result = await this.handle(data);
+      res.status(200).end(JSON.stringify(result));
+    };
+  }
+
+  async handleFromGateway(data) {
+    const result = await this.handle(data);
+
+    await this.client.api.interactions(data.id, data.token).callback.post({
+      data: result,
+    });
+  }
+}
+
+module.exports = InteractionClient;

src/client/actions/Action.js

@@ -81,23 +81,25 @@ class GenericAction {
   }
 
   getMember(data, guild) {
-    const id = data.user.id;
-    return this.getPayload(
-      {
-        user: {
-          id,
-        },
-      },
-      guild.members,
-      id,
-      PartialTypes.GUILD_MEMBER,
-    );
+    return this.getPayload(data, guild.members, data.user.id, PartialTypes.GUILD_MEMBER);
   }
 
   getUser(data) {
     const id = data.user_id;
     return data.user || this.getPayload({ id }, this.client.users, id, PartialTypes.USER);
   }
+
+  getUserFromMember(data) {
+    if (data.guild_id && data.member && data.member.user) {
+      const guild = this.client.guilds.cache.get(data.guild_id);
+      if (guild) {
+        return guild.members.add(data.member).user;
+      } else {
+        return this.client.users.add(data.member.user);
+      }
+    }
+    return this.getUser(data);
+  }
 }
 
 module.exports = GenericAction;

src/client/actions/ActionsManager.js

@@ -20,6 +20,7 @@ class ActionsManager {
     this.register(require('./InviteCreate'));
     this.register(require('./InviteDelete'));
     this.register(require('./GuildMemberRemove'));
+    this.register(require('./GuildMemberUpdate'));
     this.register(require('./GuildBanRemove'));
     this.register(require('./GuildRoleCreate'));
     this.register(require('./GuildRoleDelete'));
@@ -35,6 +36,8 @@ class ActionsManager {
     this.register(require('./GuildChannelsPositionUpdate'));
     this.register(require('./GuildIntegrationsUpdate'));
     this.register(require('./WebhooksUpdate'));
+    this.register(require('./TypingStart'));
+    this.register(require('./InteractionCreate'));
   }
 
   register(Action) {

src/client/actions/GuildEmojiCreate.js

@@ -5,13 +5,14 @@ const { Events } = require('../../util/Constants');
 
 class GuildEmojiCreateAction extends Action {
   handle(guild, createdEmoji) {
+    const already = guild.emojis.cache.has(createdEmoji.id);
     const emoji = guild.emojis.add(createdEmoji);
     /**
      * Emitted whenever a custom emoji is created in a guild.
      * @event Client#emojiCreate
      * @param {GuildEmoji} emoji The emoji that was created
      */
-    this.client.emit(Events.GUILD_EMOJI_CREATE, emoji);
+    if (!already) this.client.emit(Events.GUILD_EMOJI_CREATE, emoji);
     return { emoji };
   }
 }

src/client/actions/GuildMemberRemove.js

@@ -9,7 +9,7 @@ class GuildMemberRemoveAction extends Action {
     const guild = client.guilds.cache.get(data.guild_id);
     let member = null;
     if (guild) {
-      member = this.getMember(data, guild);
+      member = this.getMember({ user: data.user }, guild);
       guild.memberCount--;
       if (member) {
         member.deleted = true;

src/client/actions/GuildMemberUpdate.js

@@ -0,0 +1,44 @@
+'use strict';
+
+const Action = require('./Action');
+const { Status, Events } = require('../../util/Constants');
+
+class GuildMemberUpdateAction extends Action {
+  handle(data, shard) {
+    const { client } = this;
+    if (data.user.username) {
+      const user = client.users.cache.get(data.user.id);
+      if (!user) {
+        client.users.add(data.user);
+      } else if (!user.equals(data.user)) {
+        client.actions.UserUpdate.handle(data.user);
+      }
+    }
+
+    const guild = client.guilds.cache.get(data.guild_id);
+    if (guild) {
+      const member = this.getMember({ user: data.user }, guild);
+      if (member) {
+        const old = member._update(data);
+        /**
+         * Emitted whenever a guild member changes - i.e. new role, removed role, nickname.
+         * Also emitted when the user's details (e.g. username) change.
+         * @event Client#guildMemberUpdate
+         * @param {GuildMember} oldMember The member before the update
+         * @param {GuildMember} newMember The member after the update
+         */
+        if (shard.status === Status.READY) client.emit(Events.GUILD_MEMBER_UPDATE, old, member);
+      } else {
+        const newMember = guild.members.add(data);
+        /**
+         * Emitted whenever a member becomes available in a large guild.
+         * @event Client#guildMemberAvailable
+         * @param {GuildMember} member The member that became available
+         */
+        this.client.emit(Events.GUILD_MEMBER_AVAILABLE, newMember);
+      }
+    }
+  }
+}
+
+module.exports = GuildMemberUpdateAction;

src/client/actions/InteractionCreate.js

@@ -0,0 +1,15 @@
+'use strict';
+
+const Action = require('./Action');
+
+class InteractionCreateAction extends Action {
+  handle(data) {
+    this.client.interactionClient.handleFromGateway(data).catch(e => {
+      this.client.emit('error', e);
+    });
+
+    return {};
+  }
+}
+
+module.exports = InteractionCreateAction;

src/client/actions/InviteCreate.js

@@ -9,7 +9,7 @@ class InviteCreateAction extends Action {
     const client = this.client;
     const channel = client.channels.cache.get(data.channel_id);
     const guild = client.guilds.cache.get(data.guild_id);
-    if (!channel && !guild) return false;
+    if (!channel) return false;
 
     const inviteData = Object.assign(data, { channel, guild });
     const invite = new Invite(client, inviteData);

src/client/actions/MessageReactionAdd.js

@@ -8,14 +8,17 @@ const { PartialTypes } = require('../../util/Constants');
 { user_id: 'id',
      message_id: 'id',
      emoji: { name: '<27>', id: null },
-     channel_id: 'id' } }
+     channel_id: 'id',
+     // If originating from a guild
+     guild_id: 'id',
+     member: { ..., user: { ... } } }
 */
 
 class MessageReactionAdd extends Action {
   handle(data) {
     if (!data.emoji) return false;
 
-    const user = this.getUser(data);
+    const user = this.getUserFromMember(data);
     if (!user) return false;
 
     // Verify channel
@@ -28,6 +31,8 @@ class MessageReactionAdd extends Action {
 
     // Verify reaction
     if (message.partial && !this.client.options.partials.includes(PartialTypes.REACTION)) return false;
+    const existing = message.reactions.cache.get(data.emoji.id || data.emoji.name);
+    if (existing && existing.users.cache.has(user.id)) return { message, reaction: existing, user };
     const reaction = message.reactions.add({
       emoji: data.emoji,
       count: message.partial ? null : 0,

src/client/actions/MessageReactionRemove.js

@@ -7,7 +7,8 @@ const { Events } = require('../../util/Constants');
 { user_id: 'id',
      message_id: 'id',
      emoji: { name: '<27>', id: null },
-     channel_id: 'id' } }
+     channel_id: 'id',
+     guild_id: 'id' }
 */
 
 class MessageReactionRemove extends Action {

src/client/actions/MessageUpdate.js

@@ -9,9 +9,9 @@ class MessageUpdateAction extends Action {
       const { id, channel_id, guild_id, author, timestamp, type } = data;
       const message = this.getMessage({ id, channel_id, guild_id, author, timestamp, type }, channel);
       if (message) {
-        message.patch(data);
+        const old = message.patch(data);
         return {
-          old: message._edits[0],
+          old,
           updated: message,
         };
       }

src/client/actions/TypingStart.js

@@ -0,0 +1,58 @@
+'use strict';
+
+const Action = require('./Action');
+const { Events } = require('../../util/Constants');
+const textBasedChannelTypes = ['dm', 'text', 'news'];
+
+class TypingStart extends Action {
+  handle(data) {
+    const channel = this.getChannel(data);
+    if (!channel) {
+      return;
+    }
+    if (!textBasedChannelTypes.includes(channel.type)) {
+      this.client.emit(Events.WARN, `Discord sent a typing packet to a ${channel.type} channel ${channel.id}`);
+      return;
+    }
+
+    const user = this.getUserFromMember(data);
+    const timestamp = new Date(data.timestamp * 1000);
+
+    if (channel && user) {
+      if (channel._typing.has(user.id)) {
+        const typing = channel._typing.get(user.id);
+
+        typing.lastTimestamp = timestamp;
+        typing.elapsedTime = Date.now() - typing.since;
+        this.client.clearTimeout(typing.timeout);
+        typing.timeout = this.tooLate(channel, user);
+      } else {
+        const since = new Date();
+        const lastTimestamp = new Date();
+        channel._typing.set(user.id, {
+          user,
+          since,
+          lastTimestamp,
+          elapsedTime: Date.now() - since,
+          timeout: this.tooLate(channel, user),
+        });
+
+        /**
+         * Emitted whenever a user starts typing in a channel.
+         * @event Client#typingStart
+         * @param {Channel} channel The channel the user started typing in
+         * @param {User} user The user that started typing
+         */
+        this.client.emit(Events.TYPING_START, channel, user);
+      }
+    }
+  }
+
+  tooLate(channel, user) {
+    return channel.client.setTimeout(() => {
+      channel._typing.delete(user.id);
+    }, 10000);
+  }
+}
+
+module.exports = TypingStart;

src/client/actions/UserUpdate.js

@@ -13,6 +13,7 @@ class UserUpdateAction extends Action {
     if (!oldUser.equals(newUser)) {
       /**
        * Emitted whenever a user's details (e.g. username) are changed.
+       * Triggered by the Discord gateway events USER_UPDATE, GUILD_MEMBER_UPDATE, and PRESENCE_UPDATE.
        * @event Client#userUpdate
        * @param {User} oldUser The user before the update
        * @param {User} newUser The user after the update

src/client/actions/VoiceStateUpdate.js

@@ -1,14 +1,15 @@
 'use strict';
 
 const Action = require('./Action');
-const VoiceState = require('../../structures/VoiceState');
 const { Events } = require('../../util/Constants');
+const Structures = require('../../util/Structures');
 
 class VoiceStateUpdate extends Action {
   handle(data) {
     const client = this.client;
     const guild = client.guilds.cache.get(data.guild_id);
     if (guild) {
+      const VoiceState = Structures.get('VoiceState');
       // Update the state
       const oldState = guild.voiceStates.cache.has(data.user_id)
         ? guild.voiceStates.cache.get(data.user_id)._clone()

src/client/voice/VoiceBroadcast.js

@@ -18,6 +18,7 @@ const { Events } = require('../../util/Constants');
  * }
  * ```
  * @implements {PlayInterface}
+ * @extends {EventEmitter}
  */
 class VoiceBroadcast extends EventEmitter {
   constructor(client) {

src/client/voice/VoiceConnection.js

@@ -144,7 +144,6 @@ class VoiceConnection extends EventEmitter {
   /**
    * Sets whether the voice connection should display as "speaking", "soundshare" or "none".
    * @param {BitFieldResolvable} value The new speaking state
-   * @private
    */
   setSpeaking(value) {
     if (this.speaking.equals(value)) return;
@@ -166,7 +165,7 @@ class VoiceConnection extends EventEmitter {
 
   /**
    * The voice state of this connection
-   * @type {VoiceState}
+   * @type {?VoiceState}
    */
   get voice() {
     return this.channel.guild.voice;
@@ -204,8 +203,8 @@ class VoiceConnection extends EventEmitter {
    * Set the token and endpoint required to connect to the voice servers.
    * @param {string} token The voice token
    * @param {string} endpoint The voice endpoint
-   * @private
    * @returns {void}
+   * @private
    */
   setTokenAndEndpoint(token, endpoint) {
     this.emit('debug', `Token "${token}" and endpoint "${endpoint}"`);
@@ -474,7 +473,11 @@ class VoiceConnection extends EventEmitter {
   }
 
   onStartSpeaking({ user_id, ssrc, speaking }) {
-    this.ssrcMap.set(+ssrc, { userID: user_id, speaking: speaking });
+    this.ssrcMap.set(+ssrc, {
+      ...(this.ssrcMap.get(+ssrc) || {}),
+      userID: user_id,
+      speaking: speaking,
+    });
   }
 
   /**
@@ -502,7 +505,7 @@ class VoiceConnection extends EventEmitter {
     }
 
     if (guild && user && !speaking.equals(old)) {
-      const member = guild.member(user);
+      const member = guild.members.resolve(user);
       if (member) {
         /**
          * Emitted once a guild member changes speaking state.

src/client/voice/dispatcher/StreamDispatcher.js

@@ -1,7 +1,7 @@
 'use strict';
 
 const { Writable } = require('stream');
-const secretbox = require('../util/Secretbox');
+const secretbox = require('../../../util/Sodium');
 const Silence = require('../util/Silence');
 const VolumeInterface = require('../util/VolumeInterface');
 
@@ -56,7 +56,7 @@ class StreamDispatcher extends Writable {
      * The broadcast controlling this dispatcher, if any
      * @type {?VoiceBroadcast}
      */
-    this.broadcast = this.streams.broadcast;
+    this.broadcast = this.streams.broadcast || null;
 
     this._pausedTime = 0;
     this._silentPausedTime = 0;

src/client/voice/networking/VoiceWebSocket.js

@@ -189,7 +189,11 @@ class VoiceWebSocket extends EventEmitter {
         this.emit('sessionDescription', packet.d);
         break;
       case VoiceOPCodes.CLIENT_CONNECT:
-        this.connection.ssrcMap.set(+packet.d.audio_ssrc, packet.d.user_id);
+        this.connection.ssrcMap.set(+packet.d.audio_ssrc, {
+          userID: packet.d.user_id,
+          speaking: 0,
+          hasVideo: Boolean(packet.d.video_ssrc),
+        });
         break;
       case VoiceOPCodes.CLIENT_DISCONNECT:
         const streamInfo = this.connection.receiver && this.connection.receiver.packets.streams.get(packet.d.user_id);

src/client/voice/receiver/PacketHandler.js

@@ -1,7 +1,9 @@
 'use strict';
 
 const EventEmitter = require('events');
-const secretbox = require('../util/Secretbox');
+const sodium = require('../../../util/Sodium');
+const Speaking = require('../../../util/Speaking');
+const { SILENCE_FRAME } = require('../util/Silence');
 
 // The delay between packets when a user is considered to have stopped speaking
 // https://github.com/discordjs/discord.js/issues/3524#issuecomment-540373200
@@ -56,7 +58,7 @@ class PacketHandler extends EventEmitter {
     }
 
     // Open packet
-    let packet = secretbox.methods.open(buffer.slice(12, end), this.nonce, secret_key);
+    let packet = sodium.methods.open(buffer.slice(12, end), this.nonce, secret_key);
     if (!packet) return new Error('Failed to decrypt voice packet');
     packet = Buffer.from(packet);
 
@@ -84,8 +86,31 @@ class PacketHandler extends EventEmitter {
     const userStat = this.connection.ssrcMap.get(ssrc);
     if (!userStat) return;
 
+    let opusPacket;
+    const streamInfo = this.streams.get(userStat.userID);
+    // If the user is in video, we need to check if the packet is just silence
+    if (userStat.hasVideo) {
+      opusPacket = this.parseBuffer(buffer);
+      if (opusPacket instanceof Error) {
+        // Only emit an error if we were actively receiving packets from this user
+        if (streamInfo) {
+          this.emit('error', opusPacket);
+          return;
+        }
+      }
+      if (SILENCE_FRAME.equals(opusPacket)) {
+        // If this is a silence frame, pretend we never received it
+        return;
+      }
+    }
+
     let speakingTimeout = this.speakingTimeouts.get(ssrc);
     if (typeof speakingTimeout === 'undefined') {
+      // Ensure at least the speaking bit is set.
+      // As the object is by reference, it's only needed once per client re-connect.
+      if (userStat.speaking === 0) {
+        userStat.speaking = Speaking.FLAGS.SPEAKING;
+      }
       this.connection.onSpeaking({ user_id: userStat.userID, ssrc: ssrc, speaking: userStat.speaking });
       speakingTimeout = this.receiver.connection.client.setTimeout(() => {
         try {
@@ -101,15 +126,17 @@ class PacketHandler extends EventEmitter {
       speakingTimeout.refresh();
     }
 
-    let stream = this.streams.get(userStat.userID);
-    if (!stream) return;
-    stream = stream.stream;
-    const opusPacket = this.parseBuffer(buffer);
-    if (opusPacket instanceof Error) {
-      this.emit('error', opusPacket);
-      return;
+    if (streamInfo) {
+      const { stream } = streamInfo;
+      if (!opusPacket) {
+        opusPacket = this.parseBuffer(buffer);
+        if (opusPacket instanceof Error) {
+          this.emit('error', opusPacket);
+          return;
+        }
+      }
+      stream.push(opusPacket);
     }
-    stream.push(opusPacket);
   }
 }
 

src/client/voice/util/Silence.js

@@ -10,4 +10,6 @@ class Silence extends Readable {
   }
 }
 
+Silence.SILENCE_FRAME = SILENCE_FRAME;
+
 module.exports = Silence;

src/client/websocket/WebSocketManager.js

@@ -18,15 +18,13 @@ const BeforeReadyWhitelist = [
   WSEvents.GUILD_MEMBER_REMOVE,
 ];
 
-const UNRECOVERABLE_CLOSE_CODES = Object.keys(WSCodes)
-  .slice(1)
-  .map(Number);
+const UNRECOVERABLE_CLOSE_CODES = Object.keys(WSCodes).slice(1).map(Number);
 const UNRESUMABLE_CLOSE_CODES = [1000, 4006, 4007];
 
 /**
  * The WebSocket manager for this client.
  * <info>This class forwards raw dispatch events,
- * read more about it here {@link https://discordapp.com/developers/docs/topics/gateway}</info>
+ * read more about it here {@link https://discord.com/developers/docs/topics/gateway}</info>
  * @extends EventEmitter
  */
 class WebSocketManager extends EventEmitter {
@@ -45,7 +43,7 @@ class WebSocketManager extends EventEmitter {
      * The gateway this manager uses
      * @type {?string}
      */
-    this.gateway = undefined;
+    this.gateway = null;
 
     /**
      * The amount of shards this manager handles
@@ -78,7 +76,7 @@ class WebSocketManager extends EventEmitter {
 
     /**
      * The current status of this WebSocketManager
-     * @type {number}
+     * @type {Status}
      */
     this.status = Status.IDLE;
 
@@ -100,11 +98,11 @@ class WebSocketManager extends EventEmitter {
      * The current session limit of the client
      * @private
      * @type {?Object}
-     * @prop {number} total Total number of identifies available
-     * @prop {number} remaining Number of identifies remaining
-     * @prop {number} reset_after Number of milliseconds after which the limit resets
+     * @property {number} total Total number of identifies available
+     * @property {number} remaining Number of identifies remaining
+     * @property {number} reset_after Number of milliseconds after which the limit resets
      */
-    this.sessionStartLimit = undefined;
+    this.sessionStartLimit = null;
   }
 
   /**
@@ -214,7 +212,7 @@ class WebSocketManager extends EventEmitter {
 
         if (UNRESUMABLE_CLOSE_CODES.includes(event.code)) {
           // These event codes cannot be resumed
-          shard.sessionID = undefined;
+          shard.sessionID = null;
         }
 
         /**

src/client/websocket/WebSocketShard.js

@@ -56,10 +56,10 @@ class WebSocketShard extends EventEmitter {
 
     /**
      * The current session ID of the shard
-     * @type {string}
+     * @type {?string}
      * @private
      */
-    this.sessionID = undefined;
+    this.sessionID = null;
 
     /**
      * The previous heartbeat ping of the shard
@@ -83,6 +83,7 @@ class WebSocketShard extends EventEmitter {
 
     /**
      * Contains the rate limit queue and metadata
+     * @name WebSocketShard#ratelimit
      * @type {Object}
      * @private
      */
@@ -98,6 +99,7 @@ class WebSocketShard extends EventEmitter {
 
     /**
      * The WebSocket connection for the current shard
+     * @name WebSocketShard#connection
      * @type {?WebSocket}
      * @private
      */
@@ -110,6 +112,7 @@ class WebSocketShard extends EventEmitter {
 
     /**
      * The compression to use
+     * @name WebSocketShard#inflate
      * @type {?Inflate}
      * @private
      */
@@ -117,13 +120,15 @@ class WebSocketShard extends EventEmitter {
 
     /**
      * The HELLO timeout
-     * @type {?NodeJS.Timer}
+     * @name WebSocketShard#helloTimeout
+     * @type {?NodeJS.Timeout}
      * @private
      */
-    Object.defineProperty(this, 'helloTimeout', { value: undefined, writable: true });
+    Object.defineProperty(this, 'helloTimeout', { value: null, writable: true });
 
     /**
      * If the manager attached its event handlers on the shard
+     * @name WebSocketShard#eventsAttached
      * @type {boolean}
      * @private
      */
@@ -131,20 +136,23 @@ class WebSocketShard extends EventEmitter {
 
     /**
      * A set of guild IDs this shard expects to receive
+     * @name WebSocketShard#expectedGuilds
      * @type {?Set<string>}
      * @private
      */
-    Object.defineProperty(this, 'expectedGuilds', { value: undefined, writable: true });
+    Object.defineProperty(this, 'expectedGuilds', { value: null, writable: true });
 
     /**
      * The ready timeout
-     * @type {?NodeJS.Timer}
+     * @name WebSocketShard#readyTimeout
+     * @type {?NodeJS.Timeout}
      * @private
      */
-    Object.defineProperty(this, 'readyTimeout', { value: undefined, writable: true });
+    Object.defineProperty(this, 'readyTimeout', { value: null, writable: true });
 
     /**
      * Time when the WebSocket connection was opened
+     * @name WebSocketShard#connectedAt
      * @type {number}
      * @private
      */
@@ -407,6 +415,7 @@ class WebSocketShard extends EventEmitter {
         this.identify();
         break;
       case OPCodes.RECONNECT:
+        this.debug('[RECONNECT] Discord asked us to reconnect');
         this.destroy({ closeCode: 4000 });
         break;
       case OPCodes.INVALID_SESSION:
@@ -419,7 +428,7 @@ class WebSocketShard extends EventEmitter {
         // Reset the sequence
         this.sequence = -1;
         // Reset the session ID as it's invalid
-        this.sessionID = undefined;
+        this.sessionID = null;
         // Set the status to reconnecting
         this.status = Status.RECONNECTING;
         // Finally, emit the INVALID_SESSION event
@@ -448,7 +457,7 @@ class WebSocketShard extends EventEmitter {
     // Step 0. Clear the ready timeout, if it exists
     if (this.readyTimeout) {
       this.manager.client.clearTimeout(this.readyTimeout);
-      this.readyTimeout = undefined;
+      this.readyTimeout = null;
     }
     // Step 1. If we don't have any other guilds pending, we are ready
     if (!this.expectedGuilds.size) {
@@ -471,7 +480,7 @@ class WebSocketShard extends EventEmitter {
       this.debug(`Shard did not receive any more guild packets in 15 seconds.
   Unavailable guild count: ${this.expectedGuilds.size}`);
 
-      this.readyTimeout = undefined;
+      this.readyTimeout = null;
 
       this.status = Status.READY;
 
@@ -489,7 +498,7 @@ class WebSocketShard extends EventEmitter {
       if (this.helloTimeout) {
         this.debug('Clearing the HELLO timeout.');
         this.manager.client.clearTimeout(this.helloTimeout);
-        this.helloTimeout = undefined;
+        this.helloTimeout = null;
       }
       return;
     }
@@ -510,7 +519,7 @@ class WebSocketShard extends EventEmitter {
       if (this.heartbeatInterval) {
         this.debug('Clearing the heartbeat interval.');
         this.manager.client.clearInterval(this.heartbeatInterval);
-        this.heartbeatInterval = undefined;
+        this.heartbeatInterval = null;
       }
       return;
     }
@@ -622,7 +631,7 @@ class WebSocketShard extends EventEmitter {
   /**
    * Adds a packet to the queue to be sent to the gateway.
    * <warn>If you use this method, make sure you understand that you need to provide
-   * a full [Payload](https://discordapp.com/developers/docs/topics/gateway#commands-and-events-gateway-commands).
+   * a full [Payload](https://discord.com/developers/docs/topics/gateway#commands-and-events-gateway-commands).
    * Do not use this method if you don't know what you're doing.</warn>
    * @param {Object} data The full packet to send
    * @param {boolean} [important=false] If this packet should be added first in queue
@@ -725,7 +734,7 @@ class WebSocketShard extends EventEmitter {
     // Step 5: Reset the sequence and session ID if requested
     if (reset) {
       this.sequence = -1;
-      this.sessionID = undefined;
+      this.sessionID = null;
     }
 
     // Step 6: reset the ratelimit data

src/client/websocket/handlers/GUILD_MEMBERS_CHUNK.js

@@ -10,13 +10,21 @@ module.exports = (client, { d: data }) => {
 
   for (const member of data.members) members.set(member.user.id, guild.members.add(member));
   if (data.presences) {
-    for (const presence of data.presences) guild.presences.cache.add(Object.assign(presence, { guild }));
+    for (const presence of data.presences) guild.presences.add(Object.assign(presence, { guild }));
   }
   /**
    * Emitted whenever a chunk of guild members is received (all members come from the same guild).
    * @event Client#guildMembersChunk
    * @param {Collection<Snowflake, GuildMember>} members The members in the chunk
    * @param {Guild} guild The guild related to the member chunk
+   * @param {Object} chunk Properties of the received chunk
+   * @param {number} chunk.index Index of the received chunk
+   * @param {number} chunk.count Number of chunks the client should receive
+   * @param {?string} chunk.nonce Nonce for this chunk
    */
-  client.emit(Events.GUILD_MEMBERS_CHUNK, members, guild);
+  client.emit(Events.GUILD_MEMBERS_CHUNK, members, guild, {
+    count: data.chunk_count,
+    index: data.chunk_index,
+    nonce: data.nonce,
+  });
 };

src/client/websocket/handlers/GUILD_MEMBER_UPDATE.js

@@ -1,22 +1,5 @@
 'use strict';
 
-const { Status, Events } = require('../../../util/Constants');
-
-module.exports = (client, { d: data }, shard) => {
-  const guild = client.guilds.cache.get(data.guild_id);
-  if (guild) {
-    const member = guild.members.cache.get(data.user.id);
-    if (member) {
-      const old = member._update(data);
-      if (shard.status === Status.READY) {
-        /**
-         * Emitted whenever a guild member changes - i.e. new role, removed role, nickname.
-         * @event Client#guildMemberUpdate
-         * @param {GuildMember} oldMember The member before the update
-         * @param {GuildMember} newMember The member after the update
-         */
-        client.emit(Events.GUILD_MEMBER_UPDATE, old, member);
-      }
-    }
-  }
+module.exports = (client, packet, shard) => {
+  client.actions.GuildMemberUpdate.handle(packet.d, shard);
 };

src/client/websocket/handlers/INTERACTION_CREATE.js

@@ -0,0 +1,5 @@
+'use strict';
+
+module.exports = (client, packet) => {
+  client.actions.InteractionCreate.handle(packet.d);
+};

src/client/websocket/handlers/TYPING_START.js

@@ -1,49 +1,5 @@
 'use strict';
 
-const { Events } = require('../../../util/Constants');
-
-module.exports = (client, { d: data }) => {
-  const channel = client.channels.cache.get(data.channel_id);
-  const user = client.users.cache.get(data.user_id);
-  const timestamp = new Date(data.timestamp * 1000);
-
-  if (channel && user) {
-    if (channel.type === 'voice') {
-      client.emit(Events.WARN, `Discord sent a typing packet to a voice channel ${channel.id}`);
-      return;
-    }
-
-    if (channel._typing.has(user.id)) {
-      const typing = channel._typing.get(user.id);
-
-      typing.lastTimestamp = timestamp;
-      typing.elapsedTime = Date.now() - typing.since;
-      client.clearTimeout(typing.timeout);
-      typing.timeout = tooLate(channel, user);
-    } else {
-      const since = new Date();
-      const lastTimestamp = new Date();
-      channel._typing.set(user.id, {
-        user,
-        since,
-        lastTimestamp,
-        elapsedTime: Date.now() - since,
-        timeout: tooLate(channel, user),
-      });
-
-      /**
-       * Emitted whenever a user starts typing in a channel.
-       * @event Client#typingStart
-       * @param {Channel} channel The channel the user started typing in
-       * @param {User} user The user that started typing
-       */
-      client.emit(Events.TYPING_START, channel, user);
-    }
-  }
+module.exports = (client, packet) => {
+  client.actions.TypingStart.handle(packet.d);
 };
-
-function tooLate(channel, user) {
-  return channel.client.setTimeout(() => {
-    channel._typing.delete(user.id);
-  }, 10000);
-}

src/errors/Messages.js

@@ -21,11 +21,16 @@ const Messages = {
   DISALLOWED_INTENTS: 'Privileged intent provided is not enabled or whitelisted.',
   SHARDING_NO_SHARDS: 'No shards have been spawned.',
   SHARDING_IN_PROCESS: 'Shards are still being spawned.',
+  SHARDING_SHARD_NOT_FOUND: id => `Shard ${id} could not be found.`,
   SHARDING_ALREADY_SPAWNED: count => `Already spawned ${count} shards.`,
   SHARDING_PROCESS_EXISTS: id => `Shard ${id} already has an active process.`,
+  SHARDING_WORKER_EXISTS: id => `Shard ${id} already has an active worker.`,
   SHARDING_READY_TIMEOUT: id => `Shard ${id}'s Client took too long to become ready.`,
   SHARDING_READY_DISCONNECTED: id => `Shard ${id}'s Client disconnected before becoming ready.`,
   SHARDING_READY_DIED: id => `Shard ${id}'s process exited before its Client became ready.`,
+  SHARDING_NO_CHILD_EXISTS: id => `Shard ${id} has no active process or worker.`,
+  SHARDING_SHARD_MISCALCULATION: (shard, guild, count) =>
+    `Calculated invalid shard ${shard} for guild ${guild} with ${count} shards.`,
 
   COLOR_RANGE: 'Color must be within the range 0 - 16777215 (0xFFFFFF).',
   COLOR_CONVERT: 'Unable to convert color to a number.',
@@ -66,7 +71,7 @@ const Messages = {
   IMAGE_SIZE: size => `Invalid image size: ${size}`,
 
   MESSAGE_BULK_DELETE_TYPE: 'The messages must be an Array, Collection, or number.',
-  MESSAGE_NONCE_TYPE: 'Message nonce must fit in an unsigned 64-bit integer.',
+  MESSAGE_NONCE_TYPE: 'Message nonce must be an integer or a string.',
 
   TYPING_COUNT: 'Count must be at least 1',
 
@@ -99,6 +104,8 @@ const Messages = {
 
   DELETE_GROUP_DM_CHANNEL: "Bots don't have access to Group DM Channels and cannot delete them",
   FETCH_GROUP_DM_CHANNEL: "Bots don't have access to Group DM Channels and cannot fetch them",
+
+  MEMBER_FETCH_NONCE_LENGTH: 'Nonce length must not exceed 32 characters.',
 };
 
 for (const [name, message] of Object.entries(Messages)) register(name, message);

src/index.js

@@ -6,6 +6,7 @@ module.exports = {
   // "Root" classes (starting points)
   BaseClient: require('./client/BaseClient'),
   Client: require('./client/Client'),
+  InteractionClient: require('./client/InteractionClient'),
   Shard: require('./sharding/Shard'),
   ShardClientUtil: require('./sharding/ShardClientUtil'),
   ShardingManager: require('./sharding/ShardingManager'),
@@ -28,10 +29,12 @@ module.exports = {
   SnowflakeUtil: require('./util/Snowflake'),
   Structures: require('./util/Structures'),
   SystemChannelFlags: require('./util/SystemChannelFlags'),
+  UserFlags: require('./util/UserFlags'),
   Util: Util,
   version: require('../package.json').version,
 
   // Managers
+  BaseGuildEmojiManager: require('./managers/BaseGuildEmojiManager'),
   ChannelManager: require('./managers/ChannelManager'),
   GuildChannelManager: require('./managers/GuildChannelManager'),
   GuildEmojiManager: require('./managers/GuildEmojiManager'),
@@ -39,6 +42,7 @@ module.exports = {
   GuildMemberManager: require('./managers/GuildMemberManager'),
   GuildMemberRoleManager: require('./managers/GuildMemberRoleManager'),
   GuildManager: require('./managers/GuildManager'),
+  ReactionManager: require('./managers/ReactionManager'),
   ReactionUserManager: require('./managers/ReactionUserManager'),
   MessageManager: require('./managers/MessageManager'),
   PresenceManager: require('./managers/PresenceManager'),
@@ -54,6 +58,8 @@ module.exports = {
   splitMessage: Util.splitMessage,
 
   // Structures
+  Application: require('./structures/interfaces/Application'),
+  ApplicationCommand: require('./structures/ApplicationCommand'),
   Base: require('./structures/Base'),
   Activity: require('./structures/Presence').Activity,
   APIMessage: require('./structures/APIMessage'),
@@ -74,7 +80,9 @@ module.exports = {
   GuildEmoji: require('./structures/GuildEmoji'),
   GuildMember: require('./structures/GuildMember'),
   GuildPreview: require('./structures/GuildPreview'),
+  GuildTemplate: require('./structures/GuildTemplate'),
   Integration: require('./structures/Integration'),
+  Interaction: require('./structures/Interaction'),
   Invite: require('./structures/Invite'),
   Message: require('./structures/Message'),
   MessageAttachment: require('./structures/MessageAttachment'),

src/managers/BaseGuildEmojiManager.js

@@ -0,0 +1,80 @@
+'use strict';
+
+const BaseManager = require('./BaseManager');
+const GuildEmoji = require('../structures/GuildEmoji');
+const ReactionEmoji = require('../structures/ReactionEmoji');
+const { parseEmoji } = require('../util/Util');
+
+/**
+ * Holds methods to resolve GuildEmojis and stores their cache.
+ * @extends {BaseManager}
+ */
+class BaseGuildEmojiManager extends BaseManager {
+  constructor(client, iterable) {
+    super(client, iterable, GuildEmoji);
+  }
+
+  /**
+   * The cache of GuildEmojis
+   * @type {Collection<Snowflake, GuildEmoji>}
+   * @name BaseGuildEmojiManager#cache
+   */
+
+  /**
+   * Data that can be resolved into a GuildEmoji object. This can be:
+   * * A custom emoji ID
+   * * A GuildEmoji object
+   * * A ReactionEmoji object
+   * @typedef {Snowflake|GuildEmoji|ReactionEmoji} EmojiResolvable
+   */
+
+  /**
+   * Resolves an EmojiResolvable to an Emoji object.
+   * @param {EmojiResolvable} emoji The Emoji resolvable to identify
+   * @returns {?GuildEmoji}
+   */
+  resolve(emoji) {
+    if (emoji instanceof ReactionEmoji) return super.resolve(emoji.id);
+    return super.resolve(emoji);
+  }
+
+  /**
+   * Resolves an EmojiResolvable to an Emoji ID string.
+   * @param {EmojiResolvable} emoji The Emoji resolvable to identify
+   * @returns {?Snowflake}
+   */
+  resolveID(emoji) {
+    if (emoji instanceof ReactionEmoji) return emoji.id;
+    return super.resolveID(emoji);
+  }
+
+  /**
+   * Data that can be resolved to give an emoji identifier. This can be:
+   * * The unicode representation of an emoji
+   * * The `<a:name:id>`, `<:name:id>`, `a:name:id` or `name:id` emoji identifier string of an emoji
+   * * An EmojiResolvable
+   * @typedef {string|EmojiResolvable} EmojiIdentifierResolvable
+   */
+
+  /**
+   * Resolves an EmojiResolvable to an emoji identifier.
+   * @param {EmojiIdentifierResolvable} emoji The emoji resolvable to resolve
+   * @returns {?string}
+   */
+  resolveIdentifier(emoji) {
+    const emojiResolvable = this.resolve(emoji);
+    if (emojiResolvable) return emojiResolvable.identifier;
+    if (emoji instanceof ReactionEmoji) return emoji.identifier;
+    if (typeof emoji === 'string') {
+      const res = parseEmoji(emoji);
+      if (res && res.name.length) {
+        emoji = `${res.animated ? 'a:' : ''}${res.name}${res.id ? `:${res.id}` : ''}`;
+      }
+      if (!emoji.includes('%')) return encodeURIComponent(emoji);
+      return emoji;
+    }
+    return null;
+  }
+}
+
+module.exports = BaseGuildEmojiManager;

src/managers/ChannelManager.js

@@ -74,6 +74,7 @@ class ChannelManager extends BaseManager {
    * Obtains a channel from Discord, or the channel cache if it's already available.
    * @param {Snowflake} id ID of the channel
    * @param {boolean} [cache=true] Whether to cache the new channel object if it isn't already
+   * @param {boolean} [force=false] Whether to skip the cache check and request the API
    * @returns {Promise<Channel>}
    * @example
    * // Fetch a channel by its id
@@ -81,9 +82,11 @@ class ChannelManager extends BaseManager {
    *   .then(channel => console.log(channel.name))
    *   .catch(console.error);
    */
-  async fetch(id, cache = true) {
-    const existing = this.cache.get(id);
-    if (existing && !existing.partial) return existing;
+  async fetch(id, cache = true, force = false) {
+    if (!force) {
+      const existing = this.cache.get(id);
+      if (existing && !existing.partial) return existing;
+    }
 
     const data = await this.client.api.channels(id).get();
     return this.add(data, null, cache);

src/managers/GuildChannelManager.js

@@ -46,7 +46,7 @@ class GuildChannelManager extends BaseManager {
    * @memberof GuildChannelManager
    * @instance
    * @param {GuildChannelResolvable} channel The GuildChannel resolvable to resolve
-   * @returns {?Channel}
+   * @returns {?GuildChannel}
    */
 
   /**

src/managers/GuildEmojiManager.js

@@ -1,19 +1,18 @@
 'use strict';
 
-const BaseManager = require('./BaseManager');
+const BaseGuildEmojiManager = require('./BaseGuildEmojiManager');
 const { TypeError } = require('../errors');
-const GuildEmoji = require('../structures/GuildEmoji');
-const ReactionEmoji = require('../structures/ReactionEmoji');
 const Collection = require('../util/Collection');
 const DataResolver = require('../util/DataResolver');
 
 /**
  * Manages API methods for GuildEmojis and stores their cache.
- * @extends {BaseManager}
+ * @extends {BaseGuildEmojiManager}
  */
-class GuildEmojiManager extends BaseManager {
+class GuildEmojiManager extends BaseGuildEmojiManager {
   constructor(guild, iterable) {
-    super(guild.client, iterable, GuildEmoji);
+    super(guild.client, iterable);
+
     /**
      * The guild this manager belongs to
      * @type {Guild}
@@ -21,12 +20,6 @@ class GuildEmojiManager extends BaseManager {
     this.guild = guild;
   }
 
-  /**
-   * The cache of GuildEmojis
-   * @type {Collection<Snowflake, GuildEmoji>}
-   * @name GuildEmojiManager#cache
-   */
-
   add(data, cache) {
     return super.add(data, cache, { extras: [this.guild] });
   }
@@ -73,57 +66,6 @@ class GuildEmojiManager extends BaseManager {
       .emojis.post({ data, reason })
       .then(emoji => this.client.actions.GuildEmojiCreate.handle(this.guild, emoji).emoji);
   }
-
-  /**
-   * Data that can be resolved into an GuildEmoji object. This can be:
-   * * A custom emoji ID
-   * * A GuildEmoji object
-   * * A ReactionEmoji object
-   * @typedef {Snowflake|GuildEmoji|ReactionEmoji} EmojiResolvable
-   */
-
-  /**
-   * Resolves an EmojiResolvable to an Emoji object.
-   * @param {EmojiResolvable} emoji The Emoji resolvable to identify
-   * @returns {?GuildEmoji}
-   */
-  resolve(emoji) {
-    if (emoji instanceof ReactionEmoji) return super.resolve(emoji.id);
-    return super.resolve(emoji);
-  }
-
-  /**
-   * Resolves an EmojiResolvable to an Emoji ID string.
-   * @param {EmojiResolvable} emoji The Emoji resolvable to identify
-   * @returns {?Snowflake}
-   */
-  resolveID(emoji) {
-    if (emoji instanceof ReactionEmoji) return emoji.id;
-    return super.resolveID(emoji);
-  }
-
-  /**
-   * Data that can be resolved to give an emoji identifier. This can be:
-   * * The unicode representation of an emoji
-   * * An EmojiResolvable
-   * @typedef {string|EmojiResolvable} EmojiIdentifierResolvable
-   */
-
-  /**
-   * Resolves an EmojiResolvable to an emoji identifier.
-   * @param {EmojiIdentifierResolvable} emoji The emoji resolvable to resolve
-   * @returns {?string}
-   */
-  resolveIdentifier(emoji) {
-    const emojiResolvable = this.resolve(emoji);
-    if (emojiResolvable) return emojiResolvable.identifier;
-    if (emoji instanceof ReactionEmoji) return emoji.identifier;
-    if (typeof emoji === 'string') {
-      if (!emoji.includes('%')) return encodeURIComponent(emoji);
-      else return emoji;
-    }
-    return null;
-  }
 }
 
 module.exports = GuildEmojiManager;

src/managers/GuildManager.js

@@ -8,6 +8,7 @@ const GuildMember = require('../structures/GuildMember');
 const Invite = require('../structures/Invite');
 const Role = require('../structures/Role');
 const {
+  ChannelTypes,
   Events,
   VerificationLevels,
   DefaultMessageNotifications,
@@ -129,6 +130,8 @@ class GuildManager extends BaseManager {
    * <warn>This is only available to bots in fewer than 10 guilds.</warn>
    * @param {string} name The name of the guild
    * @param {Object} [options] Options for the creating
+   * @param {number} [options.afkChannelID] The ID of the AFK channel
+   * @param {number} [options.afkTimeout] The AFK timeout in seconds
    * @param {PartialChannelData[]} [options.channels] The channels for this guild
    * @param {DefaultMessageNotifications} [options.defaultMessageNotifications] The default message notifications
    * for the guild
@@ -137,18 +140,22 @@ class GuildManager extends BaseManager {
    * @param {string} [options.region] The region for the server, defaults to the closest one available
    * @param {PartialRoleData[]} [options.roles] The roles for this guild,
    * the first element of this array is used to change properties of the guild's everyone role.
+   * @param {number} [options.systemChannelID] The ID of the system channel
    * @param {VerificationLevel} [options.verificationLevel] The verification level for the guild
    * @returns {Promise<Guild>} The guild that was created
    */
   async create(
     name,
     {
+      afkChannelID,
+      afkTimeout,
       channels = [],
       defaultMessageNotifications,
       explicitContentFilter,
       icon = null,
       region,
       roles = [],
+      systemChannelID,
       verificationLevel,
     } = {},
   ) {
@@ -163,6 +170,7 @@ class GuildManager extends BaseManager {
       explicitContentFilter = ExplicitContentFilterLevels.indexOf(explicitContentFilter);
     }
     for (const channel of channels) {
+      if (channel.type) channel.type = ChannelTypes[channel.type.toUpperCase()];
       channel.parent_id = channel.parentID;
       delete channel.parentID;
       if (!channel.permissionOverwrites) continue;
@@ -187,8 +195,11 @@ class GuildManager extends BaseManager {
             verification_level: verificationLevel,
             default_message_notifications: defaultMessageNotifications,
             explicit_content_filter: explicitContentFilter,
-            channels,
             roles,
+            channels,
+            afk_channel_id: afkChannelID,
+            afk_timeout: afkTimeout,
+            system_channel_id: systemChannelID,
           },
         })
         .then(data => {
@@ -196,21 +207,46 @@ class GuildManager extends BaseManager {
 
           const handleGuild = guild => {
             if (guild.id === data.id) {
-              this.client.removeListener(Events.GUILD_CREATE, handleGuild);
               this.client.clearTimeout(timeout);
+              this.client.removeListener(Events.GUILD_CREATE, handleGuild);
+              this.client.decrementMaxListeners();
               resolve(guild);
             }
           };
+          this.client.incrementMaxListeners();
           this.client.on(Events.GUILD_CREATE, handleGuild);
 
           const timeout = this.client.setTimeout(() => {
             this.client.removeListener(Events.GUILD_CREATE, handleGuild);
+            this.client.decrementMaxListeners();
             resolve(this.client.guilds.add(data));
           }, 10000);
           return undefined;
         }, reject),
     );
   }
+
+  /**
+   * Obtains a guild from Discord, or the guild cache if it's already available.
+   * @param {Snowflake} id ID of the guild
+   * @param {boolean} [cache=true] Whether to cache the new guild object if it isn't already
+   * @param {boolean} [force=false] Whether to skip the cache check and request the API
+   * @returns {Promise<Guild>}
+   * @example
+   * // Fetch a guild by its id
+   * client.guilds.fetch('222078108977594368')
+   *   .then(guild => console.log(guild.name))
+   *   .catch(console.error);
+   */
+  async fetch(id, cache = true, force = false) {
+    if (!force) {
+      const existing = this.cache.get(id);
+      if (existing) return existing;
+    }
+
+    const data = await this.client.api.guilds(id).get({ query: { with_counts: true } });
+    return this.add(data, cache);
+  }
 }
 
 module.exports = GuildManager;

src/managers/GuildMemberManager.js

@@ -1,10 +1,11 @@
 'use strict';
 
 const BaseManager = require('./BaseManager');
-const { Error, TypeError } = require('../errors');
+const { Error, TypeError, RangeError } = require('../errors');
 const GuildMember = require('../structures/GuildMember');
 const Collection = require('../util/Collection');
 const { Events, OPCodes } = require('../util/Constants');
+const SnowflakeUtil = require('../util/Snowflake');
 
 /**
  * Manages API methods for GuildMembers and stores their cache.
@@ -67,6 +68,7 @@ class GuildMemberManager extends BaseManager {
    * @typedef {Object} FetchMemberOptions
    * @property {UserResolvable} user The user to fetch
    * @property {boolean} [cache=true] Whether or not to cache the fetched member
+   * @property {boolean} [force=false] Whether to skip the cache check and request the API
    */
 
   /**
@@ -76,6 +78,9 @@ class GuildMemberManager extends BaseManager {
    * @property {?string} query Limit fetch to members with similar usernames
    * @property {number} [limit=0] Maximum number of members to request
    * @property {boolean} [withPresences=false] Whether or not to include the presences
+   * @property {number} [time=120e3] Timeout for receipt of members
+   * @property {?string} nonce Nonce for this request (32 characters max - default to base 16 now timestamp)
+   * @property {boolean} [force=false] Whether to skip the cache check and request the API
    */
 
   /**
@@ -95,6 +100,11 @@ class GuildMemberManager extends BaseManager {
    *   .then(console.log)
    *   .catch(console.error);
    * @example
+   * // Fetch a single member without checking cache
+   * guild.members.fetch({ user, force: true })
+   *   .then(console.log)
+   *   .catch(console.error)
+   * @example
    * // Fetch a single member without caching
    * guild.members.fetch({ user, cache: false })
    *   .then(console.log)
@@ -133,6 +143,7 @@ class GuildMemberManager extends BaseManager {
    * @param {number} [options.days=7] Number of days of inactivity required to kick
    * @param {boolean} [options.dry=false] Get number of users that will be kicked, without actually kicking them
    * @param {boolean} [options.count=true] Whether or not to return the number of users that have been kicked.
+   * @param {RoleResolvable[]} [options.roles=[]] Array of roles to bypass the "...and no roles" constraint when pruning
    * @param {string} [options.reason] Reason for this prune
    * @returns {Promise<number|null>} The number of members that were/will be kicked
    * @example
@@ -145,16 +156,39 @@ class GuildMemberManager extends BaseManager {
    * guild.members.prune({ days: 1, reason: 'too many people!' })
    *   .then(pruned => console.log(`I just pruned ${pruned} people!`))
    *   .catch(console.error);
+   * @example
+   * // Include members with a specified role
+   * guild.members.prune({ days: 7, roles: ['657259391652855808'] })
+   *    .then(pruned => console.log(`I just pruned ${pruned} people!`))
+   *    .catch(console.error);
    */
-  prune({ days = 7, dry = false, count = true, reason } = {}) {
+  prune({ days = 7, dry = false, count: compute_prune_count = true, roles = [], reason } = {}) {
     if (typeof days !== 'number') throw new TypeError('PRUNE_DAYS_TYPE');
-    return this.client.api
-      .guilds(this.guild.id)
-      .prune[dry ? 'get' : 'post']({
-        query: {
-          days,
-          compute_prune_count: count,
-        },
+
+    const query = { days };
+    const resolvedRoles = [];
+
+    for (const role of roles) {
+      const resolvedRole = this.guild.roles.resolveID(role);
+      if (!resolvedRole) {
+        return Promise.reject(new TypeError('INVALID_TYPE', 'roles', 'Array of Roles or Snowflakes', true));
+      }
+      resolvedRoles.push(resolvedRole);
+    }
+
+    if (resolvedRoles.length) {
+      query.include_roles = dry ? resolvedRoles.join(',') : resolvedRoles;
+    }
+
+    const endpoint = this.client.api.guilds(this.guild.id).prune;
+
+    if (dry) {
+      return endpoint.get({ query, reason }).then(data => data.pruned);
+    }
+
+    return endpoint
+      .post({
+        data: { ...query, compute_prune_count },
         reason,
       })
       .then(data => data.pruned);
@@ -164,7 +198,7 @@ class GuildMemberManager extends BaseManager {
    * Bans a user from the guild.
    * @param {UserResolvable} user The user to ban
    * @param {Object} [options] Options for the ban
-   * @param {number} [options.days=0] Number of days of messages to delete
+   * @param {number} [options.days=0] Number of days of messages to delete, must be between 0 and 7
    * @param {string} [options.reason] Reason for banning
    * @returns {Promise<GuildMember|User|Snowflake>} Result object will be resolved as specifically as possible.
    * If the GuildMember cannot be resolved, the User will instead be attempted to be resolved. If that also cannot
@@ -176,12 +210,13 @@ class GuildMemberManager extends BaseManager {
    *   .catch(console.error);
    */
   ban(user, options = { days: 0 }) {
-    if (options.days) options['delete-message-days'] = options.days;
+    if (typeof options !== 'object') return Promise.reject(new TypeError('INVALID_TYPE', 'options', 'object', true));
+    if (options.days) options.delete_message_days = options.days;
     const id = this.client.users.resolveID(user);
     if (!id) return Promise.reject(new Error('BAN_RESOLVE_ID', true));
     return this.client.api
       .guilds(this.guild.id)
-      .bans[id].put({ query: options })
+      .bans[id].put({ data: options })
       .then(() => {
         if (user instanceof GuildMember) return user;
         const _user = this.client.users.resolve(id);
@@ -213,9 +248,12 @@ class GuildMemberManager extends BaseManager {
       .then(() => this.client.users.resolve(user));
   }
 
-  _fetchSingle({ user, cache }) {
-    const existing = this.cache.get(user);
-    if (existing && !existing.partial) return Promise.resolve(existing);
+  _fetchSingle({ user, cache, force = false }) {
+    if (!force) {
+      const existing = this.cache.get(user);
+      if (existing && !existing.partial) return Promise.resolve(existing);
+    }
+
     return this.client.api
       .guilds(this.guild.id)
       .members(user)
@@ -223,13 +261,22 @@ class GuildMemberManager extends BaseManager {
       .then(data => this.add(data, cache));
   }
 
-  _fetchMany({ limit = 0, withPresences: presences = false, user: user_ids, query } = {}) {
+  _fetchMany({
+    limit = 0,
+    withPresences: presences = false,
+    user: user_ids,
+    query,
+    time = 120e3,
+    nonce = SnowflakeUtil.generate(),
+    force = false,
+  } = {}) {
     return new Promise((resolve, reject) => {
-      if (this.guild.memberCount === this.cache.size && !query && !limit && !presences && !user_ids) {
+      if (this.guild.memberCount === this.cache.size && !query && !limit && !presences && !user_ids && !force) {
         resolve(this.cache);
         return;
       }
       if (!query && !user_ids) query = '';
+      if (nonce.length > 32) throw new RangeError('MEMBER_FETCH_NONCE_LENGTH');
       this.guild.shard.send({
         op: OPCodes.REQUEST_GUILD_MEMBERS,
         d: {
@@ -237,33 +284,41 @@ class GuildMemberManager extends BaseManager {
           presences,
           user_ids,
           query,
+          nonce,
           limit,
         },
       });
       const fetchedMembers = new Collection();
       const option = query || limit || presences || user_ids;
-      const handler = (members, guild) => {
-        if (guild.id !== this.guild.id) return;
+      let i = 0;
+      const handler = (members, _, chunk) => {
         timeout.refresh();
+        if (chunk.nonce !== nonce) return;
+        i++;
         for (const member of members.values()) {
           if (option) fetchedMembers.set(member.id, member);
         }
         if (
           this.guild.memberCount <= this.cache.size ||
           (option && members.size < 1000) ||
-          (limit && fetchedMembers.size >= limit)
+          (limit && fetchedMembers.size >= limit) ||
+          i === chunk.count
         ) {
-          this.guild.client.removeListener(Events.GUILD_MEMBERS_CHUNK, handler);
+          this.client.clearTimeout(timeout);
+          this.client.removeListener(Events.GUILD_MEMBERS_CHUNK, handler);
+          this.client.decrementMaxListeners();
           let fetched = option ? fetchedMembers : this.cache;
           if (user_ids && !Array.isArray(user_ids) && fetched.size) fetched = fetched.first();
           resolve(fetched);
         }
       };
-      const timeout = this.guild.client.setTimeout(() => {
-        this.guild.client.removeListener(Events.GUILD_MEMBERS_CHUNK, handler);
+      const timeout = this.client.setTimeout(() => {
+        this.client.removeListener(Events.GUILD_MEMBERS_CHUNK, handler);
+        this.client.decrementMaxListeners();
         reject(new Error('GUILD_MEMBERS_TIMEOUT'));
-      }, 120e3);
-      this.guild.client.on(Events.GUILD_MEMBERS_CHUNK, handler);
+      }, time);
+      this.client.incrementMaxListeners();
+      this.client.on(Events.GUILD_MEMBERS_CHUNK, handler);
     });
   }
 }

src/managers/GuildMemberRoleManager.js

@@ -90,12 +90,7 @@ class GuildMemberRoleManager {
     } else {
       roleOrRoles = this.guild.roles.resolve(roleOrRoles);
       if (roleOrRoles === null) {
-        throw new TypeError(
-          'INVALID_TYPE',
-          'roles',
-          'Role, Snowflake or Array or Collection of Roles or Snowflakes',
-          true,
-        );
+        throw new TypeError('INVALID_TYPE', 'roles', 'Role, Snowflake or Array or Collection of Roles or Snowflakes');
       }
 
       await this.client.api.guilds[this.guild.id].members[this.member.id].roles[roleOrRoles.id].put({ reason });

src/managers/MessageManager.js

@@ -1,6 +1,7 @@
 'use strict';
 
 const BaseManager = require('./BaseManager');
+const { TypeError } = require('../errors');
 const Message = require('../structures/Message');
 const Collection = require('../util/Collection');
 const LimitedCollection = require('../util/LimitedCollection');
@@ -45,6 +46,7 @@ class MessageManager extends BaseManager {
    * Those need to be fetched separately in such a case.</info>
    * @param {Snowflake|ChannelLogsQueryOptions} [message] The ID of the message to fetch, or query parameters.
    * @param {boolean} [cache=true] Whether to cache the message(s)
+   * @param {boolean} [force=false] Whether to skip the cache check and request the API
    * @returns {Promise<Message>|Promise<Collection<Snowflake, Message>>}
    * @example
    * // Get message
@@ -62,8 +64,8 @@ class MessageManager extends BaseManager {
    *   .then(messages => console.log(`${messages.filter(m => m.author.id === '84484653687267328').size} messages`))
    *   .catch(console.error);
    */
-  fetch(message, cache = true) {
-    return typeof message === 'string' ? this._fetchId(message, cache) : this._fetchMany(message, cache);
+  fetch(message, cache = true, force = false) {
+    return typeof message === 'string' ? this._fetchId(message, cache, force) : this._fetchMany(message, cache);
   }
 
   /**
@@ -74,7 +76,7 @@ class MessageManager extends BaseManager {
    * @returns {Promise<Collection<Snowflake, Message>>}
    * @example
    * // Get pinned messages
-   * channel.fetchPinned()
+   * channel.messages.fetchPinned()
    *   .then(messages => console.log(`Received ${messages.size} messages`))
    *   .catch(console.error);
    */
@@ -115,20 +117,21 @@ class MessageManager extends BaseManager {
    * Deletes a message, even if it's not cached.
    * @param {MessageResolvable} message The message to delete
    * @param {string} [reason] Reason for deleting this message, if it does not belong to the client user
+   * @returns {Promise<void>}
    */
   async delete(message, reason) {
     message = this.resolveID(message);
-    if (message) {
-      await this.client.api
-        .channels(this.channel.id)
-        .messages(message)
-        .delete({ reason });
-    }
+    if (!message) throw new TypeError('INVALID_TYPE', 'message', 'MessageResolvable');
+
+    await this.client.api.channels(this.channel.id).messages(message).delete({ reason });
   }
 
-  async _fetchId(messageID, cache) {
-    const existing = this.cache.get(messageID);
-    if (existing && !existing.partial) return existing;
+  async _fetchId(messageID, cache, force) {
+    if (!force) {
+      const existing = this.cache.get(messageID);
+      if (existing && !existing.partial) return existing;
+    }
+
     const data = await this.client.api.channels[this.channel.id].messages[messageID].get();
     return this.add(data, cache);
   }

src/managers/ReactionManager.js

@@ -24,7 +24,7 @@ class ReactionManager extends BaseManager {
 
   /**
    * The reaction cache of this manager
-   * @type {Collection<Snowflake, MessageReaction>}
+   * @type {Collection<string|Snowflake, MessageReaction>}
    * @name ReactionManager#cache
    */
 

src/managers/ReactionUserManager.js

@@ -48,16 +48,16 @@ class ReactionUserManager extends BaseManager {
 
   /**
    * Removes a user from this reaction.
-   * @param {UserResolvable} [user=this.reaction.message.client.user] The user to remove the reaction of
+   * @param {UserResolvable} [user=this.client.user] The user to remove the reaction of
    * @returns {Promise<MessageReaction>}
    */
-  remove(user = this.reaction.message.client.user) {
-    const message = this.reaction.message;
-    const userID = message.client.users.resolveID(user);
+  remove(user = this.client.user) {
+    const userID = this.client.users.resolveID(user);
     if (!userID) return Promise.reject(new Error('REACTION_RESOLVE_USER'));
-    return message.client.api.channels[message.channel.id].messages[message.id].reactions[
-      this.reaction.emoji.identifier
-    ][userID === message.client.user.id ? '@me' : userID]
+    const message = this.reaction.message;
+    return this.client.api.channels[message.channel.id].messages[message.id].reactions[this.reaction.emoji.identifier][
+      userID === this.client.user.id ? '@me' : userID
+    ]
       .delete()
       .then(() => this.reaction);
   }

src/managers/RoleManager.js

@@ -2,6 +2,7 @@
 
 const BaseManager = require('./BaseManager');
 const Role = require('../structures/Role');
+const Collection = require('../util/Collection');
 const Permissions = require('../util/Permissions');
 const { resolveColor } = require('../util/Util');
 
@@ -31,9 +32,10 @@ class RoleManager extends BaseManager {
 
   /**
    * Obtains one or more roles from Discord, or the role cache if they're already available.
-   * @param {Snowflake} [id] ID or IDs of the role(s)
-   * @param {boolean} [cache=true] Whether to cache the new roles objects if it weren't already
-   * @returns {Promise<Role|RoleManager>}
+   * @param {Snowflake} [id] ID of the role to fetch
+   * @param {boolean} [cache=true] Whether to cache the new role object(s) if they weren't already
+   * @param {boolean} [force=false] Whether to skip the cache check and request the API
+   * @returns {Promise<?Role|Collection<Snowflake, Role>>}
    * @example
    * // Fetch all roles from the guild
    * message.guild.roles.fetch()
@@ -45,16 +47,17 @@ class RoleManager extends BaseManager {
    *   .then(role => console.log(`The role color is: ${role.color}`))
    *   .catch(console.error);
    */
-  async fetch(id, cache = true) {
-    if (id) {
+  async fetch(id, cache = true, force = false) {
+    if (id && !force) {
       const existing = this.cache.get(id);
       if (existing) return existing;
     }
 
     // We cannot fetch a single role, as of this commit's date, Discord API throws with 405
-    const roles = await this.client.api.guilds(this.guild.id).roles.get();
-    for (const role of roles) this.add(role, cache);
-    return id ? this.cache.get(id) || null : this;
+    const data = await this.client.api.guilds(this.guild.id).roles.get();
+    const roles = new Collection();
+    for (const role of data) roles.set(role.id, this.add(role, cache));
+    return id ? roles.get(id) || null : roles;
   }
 
   /**
@@ -125,11 +128,11 @@ class RoleManager extends BaseManager {
 
   /**
    * The `@everyone` role of the guild
-   * @type {?Role}
+   * @type {Role}
    * @readonly
    */
   get everyone() {
-    return this.cache.get(this.guild.id) || null;
+    return this.cache.get(this.guild.id);
   }
 
   /**

src/managers/UserManager.js

@@ -55,11 +55,15 @@ class UserManager extends BaseManager {
    * Obtains a user from Discord, or the user cache if it's already available.
    * @param {Snowflake} id ID of the user
    * @param {boolean} [cache=true] Whether to cache the new user object if it isn't already
+   * @param {boolean} [force=false] Whether to skip the cache check and request the API
    * @returns {Promise<User>}
    */
-  async fetch(id, cache = true) {
-    const existing = this.cache.get(id);
-    if (existing && !existing.partial) return existing;
+  async fetch(id, cache = true, force = false) {
+    if (!force) {
+      const existing = this.cache.get(id);
+      if (existing && !existing.partial) return existing;
+    }
+
     const data = await this.client.api.users(id).get();
     return this.add(data, cache);
   }

src/managers/VoiceStateManager.js

@@ -1,7 +1,6 @@
 'use strict';
 
 const BaseManager = require('./BaseManager');
-const VoiceState = require('../structures/VoiceState');
 
 /**
  * Manages API methods for VoiceStates and stores their cache.
@@ -9,7 +8,7 @@ const VoiceState = require('../structures/VoiceState');
  */
 class VoiceStateManager extends BaseManager {
   constructor(guild, iterable) {
-    super(guild.client, iterable, VoiceState);
+    super(guild.client, iterable, { name: 'VoiceState' });
     /**
      * The guild this manager belongs to
      * @type {Guild}
@@ -27,7 +26,7 @@ class VoiceStateManager extends BaseManager {
     const existing = this.cache.get(data.user_id);
     if (existing) return existing._patch(data);
 
-    const entry = new VoiceState(this.guild, data);
+    const entry = new this.holds(this.guild, data);
     if (cache) this.cache.set(data.user_id, entry);
     return entry;
   }

src/rest/APIRequest.js

@@ -1,8 +1,8 @@
 'use strict';
 
 const https = require('https');
+const FormData = require('@discordjs/form-data');
 const AbortController = require('abort-controller');
-const FormData = require('form-data');
 const fetch = require('node-fetch');
 const { browser, UserAgent } = require('../util/Constants');
 
@@ -15,11 +15,13 @@ class APIRequest {
     this.method = method;
     this.route = options.route;
     this.options = options;
+    this.retries = 0;
 
     let queryString = '';
     if (options.query) {
-      // Filter out undefined query options
-      const query = Object.entries(options.query).filter(([, value]) => value !== null && typeof value !== 'undefined');
+      const query = Object.entries(options.query)
+        .filter(([, value]) => ![null, 'null', 'undefined'].includes(value) && typeof value !== 'undefined')
+        .flatMap(([key, value]) => (Array.isArray(value) ? value.map(v => [key, v]) : [[key, value]]));
       queryString = new URLSearchParams(query).toString();
     }
     this.path = `${path}${queryString && `?${queryString}`}`;

src/rest/AsyncQueue.js

@@ -0,0 +1,95 @@
+/**
+ * MIT License
+ *
+ * Copyright (c) 2020 kyranet, discord.js
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+'use strict';
+
+// TODO(kyranet, vladfrangu): replace this with discord.js v13's core AsyncQueue.
+
+/**
+ * An async queue that preserves the stack and prevents lock-ups.
+ * @private
+ */
+class AsyncQueue {
+  constructor() {
+    /**
+     * The promises array.
+     * @type {Array<{promise: Promise<void>, resolve: Function}>}
+     * @private
+     */
+    this.promises = [];
+  }
+
+  /**
+   * The remaining amount of queued promises
+   * @type {number}
+   */
+  get remaining() {
+    return this.promises.length;
+  }
+
+  /**
+   * Waits for last promise and queues a new one.
+   * @returns {Promise<void>}
+   * @example
+   * const queue = new AsyncQueue();
+   * async function request(url, options) {
+   *     await queue.wait();
+   *     try {
+   *         const result = await fetch(url, options);
+   *         // Do some operations with 'result'
+   *     } finally {
+   *         // Remove first entry from the queue and resolve for the next entry
+   *         queue.shift();
+   *     }
+   * }
+   *
+   * request(someUrl1, someOptions1); // Will call fetch() immediately
+   * request(someUrl2, someOptions2); // Will call fetch() after the first finished
+   * request(someUrl3, someOptions3); // Will call fetch() after the second finished
+   */
+  wait() {
+    const next = this.promises.length ? this.promises[this.promises.length - 1].promise : Promise.resolve();
+    let resolve;
+    const promise = new Promise(res => {
+      resolve = res;
+    });
+
+    this.promises.push({
+      resolve,
+      promise,
+    });
+
+    return next;
+  }
+
+  /**
+   * Frees the queue's lock for the next item to process.
+   */
+  shift() {
+    const deferred = this.promises.shift();
+    if (typeof deferred !== 'undefined') deferred.resolve();
+  }
+}
+
+module.exports = AsyncQueue;

src/rest/RESTManager.js

@@ -35,19 +35,6 @@ class RESTManager {
     return Endpoints.CDN(this.client.options.http.cdn);
   }
 
-  push(handler, apiRequest) {
-    return new Promise((resolve, reject) => {
-      handler
-        .push({
-          request: apiRequest,
-          resolve,
-          reject,
-          retries: 0,
-        })
-        .catch(reject);
-    });
-  }
-
   request(method, url, options = {}) {
     const apiRequest = new APIRequest(this, method, url, options);
     let handler = this.handlers.get(apiRequest.route);
@@ -57,7 +44,11 @@ class RESTManager {
       this.handlers.set(apiRequest.route, handler);
     }
 
-    return this.push(handler, apiRequest);
+    return handler.push(apiRequest);
+  }
+
+  get endpoint() {
+    return this.client.options.http.api;
   }
 
   set endpoint(endpoint) {

src/rest/RequestHandler.js

@@ -1,5 +1,6 @@
 'use strict';
 
+const AsyncQueue = require('./AsyncQueue');
 const DiscordAPIError = require('./DiscordAPIError');
 const HTTPError = require('./HTTPError');
 const {
@@ -25,46 +26,31 @@ function calculateReset(reset, serverDate) {
 class RequestHandler {
   constructor(manager) {
     this.manager = manager;
-    this.busy = false;
-    this.queue = [];
+    this.queue = new AsyncQueue();
     this.reset = -1;
     this.remaining = -1;
     this.limit = -1;
     this.retryAfter = -1;
   }
 
-  push(request) {
-    if (this.busy) {
-      this.queue.push(request);
-      return this.run();
-    } else {
-      return this.execute(request);
+  async push(request) {
+    await this.queue.wait();
+    try {
+      return await this.execute(request);
+    } finally {
+      this.queue.shift();
     }
   }
 
-  run() {
-    if (this.queue.length === 0) return Promise.resolve();
-    return this.execute(this.queue.shift());
-  }
-
   get limited() {
     return Boolean(this.manager.globalTimeout) || (this.remaining <= 0 && Date.now() < this.reset);
   }
 
   get _inactive() {
-    return this.queue.length === 0 && !this.limited && this.busy !== true;
+    return this.queue.remaining === 0 && !this.limited;
   }
 
-  async execute(item) {
-    // Insert item back to the beginning if currently busy
-    if (this.busy) {
-      this.queue.unshift(item);
-      return null;
-    }
-
-    this.busy = true;
-    const { reject, request, resolve } = item;
-
+  async execute(request) {
     // After calculations and requests have been done, pre-emptively stop further requests
     if (this.limited) {
       const timeout = this.reset + this.manager.client.options.restTimeOffset - Date.now();
@@ -102,9 +88,13 @@ class RequestHandler {
     try {
       res = await request.make();
     } catch (error) {
-      // NodeFetch error expected for all "operational" errors, such as 500 status code
-      this.busy = false;
-      return reject(new HTTPError(error.message, error.constructor.name, error.status, request.method, request.path));
+      // Retry the specified number of times for request abortions
+      if (request.retries === this.manager.client.options.retryLimit) {
+        throw new HTTPError(error.message, error.constructor.name, error.status, request.method, request.path);
+      }
+
+      request.retries++;
+      return this.execute(request);
     }
 
     if (res && res.headers) {
@@ -120,7 +110,7 @@ class RequestHandler {
       this.retryAfter = retryAfter ? Number(retryAfter) : -1;
 
       // https://github.com/discordapp/discord-api-docs/issues/182
-      if (item.request.route.includes('reactions')) {
+      if (request.route.includes('reactions')) {
         this.reset = new Date(serverDate).getTime() - getAPIOffset(serverDate) + 250;
       }
 
@@ -137,43 +127,46 @@ class RequestHandler {
       }
     }
 
-    // Finished handling headers, safe to unlock manager
-    this.busy = false;
-
+    // Handle 2xx and 3xx responses
     if (res.ok) {
-      const success = await parseResponse(res);
       // Nothing wrong with the request, proceed with the next one
-      resolve(success);
-      return this.run();
-    } else if (res.status === 429) {
-      // A ratelimit was hit - this should never happen
-      this.queue.unshift(item);
-      this.manager.client.emit('debug', `429 hit on route ${item.request.route}`);
-      await Util.delayFor(this.retryAfter);
-      return this.run();
-    } else if (res.status >= 500 && res.status < 600) {
-      // Retry the specified number of times for possible serverside issues
-      if (item.retries === this.manager.client.options.retryLimit) {
-        return reject(
-          new HTTPError(res.statusText, res.constructor.name, res.status, item.request.method, request.path),
-        );
-      } else {
-        item.retries++;
-        this.queue.unshift(item);
-        return this.run();
-      }
-    } else {
-      // Handle possible malformed requests
-      try {
-        const data = await parseResponse(res);
-        if (res.status >= 400 && res.status < 500) {
-          return reject(new DiscordAPIError(request.path, data, request.method, res.status));
-        }
-        return null;
-      } catch (err) {
-        return reject(new HTTPError(err.message, err.constructor.name, err.status, request.method, request.path));
-      }
+      return parseResponse(res);
     }
+
+    // Handle 4xx responses
+    if (res.status >= 400 && res.status < 500) {
+      // Handle ratelimited requests
+      if (res.status === 429) {
+        // A ratelimit was hit - this should never happen
+        this.manager.client.emit('debug', `429 hit on route ${request.route}`);
+        await Util.delayFor(this.retryAfter);
+        return this.execute(request);
+      }
+
+      // Handle possible malformed requests
+      let data;
+      try {
+        data = await parseResponse(res);
+      } catch (err) {
+        throw new HTTPError(err.message, err.constructor.name, err.status, request.method, request.path);
+      }
+
+      throw new DiscordAPIError(request.path, data, request.method, res.status);
+    }
+
+    // Handle 5xx responses
+    if (res.status >= 500 && res.status < 600) {
+      // Retry the specified number of times for possible serverside issues
+      if (request.retries === this.manager.client.options.retryLimit) {
+        throw new HTTPError(res.statusText, res.constructor.name, res.status, request.method, request.path);
+      }
+
+      request.retries++;
+      return this.execute(request);
+    }
+
+    // Fallback in the rare case a status code outside the range 200..=599 is returned
+    return null;
   }
 }
 

src/sharding/Shard.js

@@ -44,7 +44,7 @@ class Shard extends EventEmitter {
 
     /**
      * Arguments for the shard's process executable (only when {@link ShardingManager#mode} is `process`)
-     * @type {?string[]}
+     * @type {string[]}
      */
     this.execArgv = manager.execArgv;
 
@@ -124,6 +124,9 @@ class Shard extends EventEmitter {
         .on('exit', this._exitListener);
     }
 
+    this._evals.clear();
+    this._fetches.clear();
+
     /**
      * Emitted upon the creation of the shard's child process/worker.
      * @event Shard#spawn
@@ -225,6 +228,10 @@ class Shard extends EventEmitter {
    *   .catch(console.error);
    */
   fetchClientValue(prop) {
+    // Shard is dead (maybe respawning), don't cache anything and error immediately
+    if (!this.process && !this.worker) return Promise.reject(new Error('SHARDING_NO_CHILD_EXISTS', this.id));
+
+    // Cached promise from previous call
     if (this._fetches.has(prop)) return this._fetches.get(prop);
 
     const promise = new Promise((resolve, reject) => {
@@ -255,6 +262,10 @@ class Shard extends EventEmitter {
    * @returns {Promise<*>} Result of the script execution
    */
   eval(script) {
+    // Shard is dead (maybe respawning), don't cache anything and error immediately
+    if (!this.process && !this.worker) return Promise.reject(new Error('SHARDING_NO_CHILD_EXISTS', this.id));
+
+    // Cached promise from previous call
     if (this._evals.has(script)) return this._evals.get(script);
 
     const promise = new Promise((resolve, reject) => {
@@ -323,18 +334,20 @@ class Shard extends EventEmitter {
 
       // Shard is requesting a property fetch
       if (message._sFetchProp) {
-        this.manager.fetchClientValues(message._sFetchProp).then(
-          results => this.send({ _sFetchProp: message._sFetchProp, _result: results }),
-          err => this.send({ _sFetchProp: message._sFetchProp, _error: Util.makePlainError(err) }),
+        const resp = { _sFetchProp: message._sFetchProp, _sFetchPropShard: message._sFetchPropShard };
+        this.manager.fetchClientValues(message._sFetchProp, message._sFetchPropShard).then(
+          results => this.send({ ...resp, _result: results }),
+          err => this.send({ ...resp, _error: Util.makePlainError(err) }),
         );
         return;
       }
 
       // Shard is requesting an eval broadcast
       if (message._sEval) {
-        this.manager.broadcastEval(message._sEval).then(
-          results => this.send({ _sEval: message._sEval, _result: results }),
-          err => this.send({ _sEval: message._sEval, _error: Util.makePlainError(err) }),
+        const resp = { _sEval: message._sEval, _sEvalShard: message._sEvalShard };
+        this.manager.broadcastEval(message._sEval, message._sEvalShard).then(
+          results => this.send({ ...resp, _result: results }),
+          err => this.send({ ...resp, _error: Util.makePlainError(err) }),
         );
         return;
       }

src/sharding/ShardClientUtil.js

@@ -79,6 +79,7 @@ class ShardClientUtil {
    * Sends a message to the master process.
    * @param {*} message Message to send
    * @returns {Promise<void>}
+   * @emits Shard#message
    */
   send(message) {
     return new Promise((resolve, reject) => {
@@ -95,28 +96,29 @@ class ShardClientUtil {
   }
 
   /**
-   * Fetches a client property value of each shard.
+   * Fetches a client property value of each shard, or a given shard.
    * @param {string} prop Name of the client property to get, using periods for nesting
-   * @returns {Promise<Array<*>>}
+   * @param {number} [shard] Shard to fetch property from, all if undefined
+   * @returns {Promise<*>|Promise<Array<*>>}
    * @example
    * client.shard.fetchClientValues('guilds.cache.size')
    *   .then(results => console.log(`${results.reduce((prev, val) => prev + val, 0)} total guilds`))
    *   .catch(console.error);
    * @see {@link ShardingManager#fetchClientValues}
    */
-  fetchClientValues(prop) {
+  fetchClientValues(prop, shard) {
     return new Promise((resolve, reject) => {
       const parent = this.parentPort || process;
 
       const listener = message => {
-        if (!message || message._sFetchProp !== prop) return;
+        if (!message || message._sFetchProp !== prop || message._sFetchPropShard !== shard) return;
         parent.removeListener('message', listener);
         if (!message._error) resolve(message._result);
         else reject(Util.makeError(message._error));
       };
       parent.on('message', listener);
 
-      this.send({ _sFetchProp: prop }).catch(err => {
+      this.send({ _sFetchProp: prop, _sFetchPropShard: shard }).catch(err => {
         parent.removeListener('message', listener);
         reject(err);
       });
@@ -124,29 +126,30 @@ class ShardClientUtil {
   }
 
   /**
-   * Evaluates a script or function on all shards, in the context of the {@link Clients}.
+   * Evaluates a script or function on all shards, or a given shard, in the context of the {@link Client}s.
    * @param {string|Function} script JavaScript to run on each shard
-   * @returns {Promise<Array<*>>} Results of the script execution
+   * @param {number} [shard] Shard to run script on, all if undefined
+   * @returns {Promise<*>|Promise<Array<*>>} Results of the script execution
    * @example
    * client.shard.broadcastEval('this.guilds.cache.size')
    *   .then(results => console.log(`${results.reduce((prev, val) => prev + val, 0)} total guilds`))
    *   .catch(console.error);
    * @see {@link ShardingManager#broadcastEval}
    */
-  broadcastEval(script) {
+  broadcastEval(script, shard) {
     return new Promise((resolve, reject) => {
       const parent = this.parentPort || process;
       script = typeof script === 'function' ? `(${script})(this)` : script;
 
       const listener = message => {
-        if (!message || message._sEval !== script) return;
+        if (!message || message._sEval !== script || message._sEvalShard !== shard) return;
         parent.removeListener('message', listener);
         if (!message._error) resolve(message._result);
         else reject(Util.makeError(message._error));
       };
       parent.on('message', listener);
 
-      this.send({ _sEval: script }).catch(err => {
+      this.send({ _sEval: script, _sEvalShard: shard }).catch(err => {
         parent.removeListener('message', listener);
         reject(err);
       });
@@ -223,6 +226,18 @@ class ShardClientUtil {
     }
     return this._singleton;
   }
+
+  /**
+   * Get the shard ID for a given guild ID.
+   * @param {Snowflake} guildID Snowflake guild ID to get shard ID for
+   * @param {number} shardCount Number of shards
+   * @returns {number}
+   */
+  static shardIDForGuildID(guildID, shardCount) {
+    const shard = Number(BigInt(guildID) >> 22n) % shardCount;
+    if (shard < 0) throw new Error('SHARDING_SHARD_MISCALCULATION', shard, guildID, shardCount);
+    return shard;
+  }
 }
 
 module.exports = ShardClientUtil;

src/sharding/ShardingManager.js

@@ -20,9 +20,7 @@ const Util = require('../util/Util');
 class ShardingManager extends EventEmitter {
   /**
    * The mode to spawn shards with for a {@link ShardingManager}: either "process" to use child processes, or
-   * "worker" to use workers. The "worker" mode relies on the experimental
-   * [Worker threads](https://nodejs.org/api/worker_threads.html) functionality that is present in Node v10.5.0 or
-   * newer. Node must be started with the `--experimental-worker` flag to expose it.
+   * "worker" to use [Worker threads](https://nodejs.org/api/worker_threads.html).
    * @typedef {Object} ShardingManagerMode
    */
 
@@ -224,30 +222,48 @@ class ShardingManager extends EventEmitter {
   }
 
   /**
-   * Evaluates a script on all shards, in the context of the {@link Client}s.
+   * Evaluates a script on all shards, or a given shard, in the context of the {@link Client}s.
    * @param {string} script JavaScript to run on each shard
-   * @returns {Promise<Array<*>>} Results of the script execution
+   * @param {number} [shard] Shard to run on, all if undefined
+   * @returns {Promise<*>|Promise<Array<*>>} Results of the script execution
    */
-  broadcastEval(script) {
-    const promises = [];
-    for (const shard of this.shards.values()) promises.push(shard.eval(script));
-    return Promise.all(promises);
+  broadcastEval(script, shard) {
+    return this._performOnShards('eval', [script], shard);
   }
 
   /**
-   * Fetches a client property value of each shard.
+   * Fetches a client property value of each shard, or a given shard.
    * @param {string} prop Name of the client property to get, using periods for nesting
-   * @returns {Promise<Array<*>>}
+   * @param {number} [shard] Shard to fetch property from, all if undefined
+   * @returns {Promise<*>|Promise<Array<*>>}
    * @example
    * manager.fetchClientValues('guilds.cache.size')
    *   .then(results => console.log(`${results.reduce((prev, val) => prev + val, 0)} total guilds`))
    *   .catch(console.error);
    */
-  fetchClientValues(prop) {
+  fetchClientValues(prop, shard) {
+    return this._performOnShards('fetchClientValue', [prop], shard);
+  }
+
+  /**
+   * Runs a method with given arguments on all shards, or a given shard.
+   * @param {string} method Method name to run on each shard
+   * @param {Array<*>} args Arguments to pass through to the method call
+   * @param {number} [shard] Shard to run on, all if undefined
+   * @returns {Promise<*>|Promise<Array<*>>} Results of the method execution
+   * @private
+   */
+  _performOnShards(method, args, shard) {
     if (this.shards.size === 0) return Promise.reject(new Error('SHARDING_NO_SHARDS'));
     if (this.shards.size !== this.shardList.length) return Promise.reject(new Error('SHARDING_IN_PROCESS'));
+
+    if (typeof shard === 'number') {
+      if (this.shards.has(shard)) return this.shards.get(shard)[method](...args);
+      return Promise.reject(new Error('SHARDING_SHARD_NOT_FOUND', shard));
+    }
+
     const promises = [];
-    for (const shard of this.shards.values()) promises.push(shard.fetchClientValue(prop));
+    for (const sh of this.shards.values()) promises.push(sh[method](...args));
     return Promise.all(promises);
   }
 

src/structures/APIMessage.js

@@ -74,13 +74,21 @@ class APIMessage {
     return this.target instanceof Message;
   }
 
+  /**
+   * Whether or not the target is an interaction
+   * @type {boolean}
+   * @readonly
+   */
+  get isInteraction() {
+    const Interaction = require('./Interaction');
+    return this.target instanceof Interaction;
+  }
+
   /**
    * Makes the content of this message.
    * @returns {?(string|string[])}
    */
   makeContent() {
-    const GuildMember = require('./GuildMember');
-
     let content;
     if (this.options.content === null) {
       content = '';
@@ -88,14 +96,16 @@ class APIMessage {
       content = Util.resolveString(this.options.content);
     }
 
+    if (typeof content !== 'string') return content;
+
     const disableMentions =
       typeof this.options.disableMentions === 'undefined'
         ? this.target.client.options.disableMentions
         : this.options.disableMentions;
     if (disableMentions === 'all') {
-      content = Util.removeMentions(content || '');
+      content = Util.removeMentions(content);
     } else if (disableMentions === 'everyone') {
-      content = (content || '').replace(/@([^<>@ ]*)/gmsu, (match, target) => {
+      content = content.replace(/@([^<>@ ]*)/gmsu, (match, target) => {
         if (target.match(/^[&!]?\d+$/)) {
           return `@${target}`;
         } else {
@@ -108,29 +118,18 @@ class APIMessage {
     const isCode = typeof this.options.code !== 'undefined' && this.options.code !== false;
     const splitOptions = isSplit ? { ...this.options.split } : undefined;
 
-    let mentionPart = '';
-    if (this.options.reply && !this.isUser && this.target.type !== 'dm') {
-      const id = this.target.client.users.resolveID(this.options.reply);
-      mentionPart = `<@${this.options.reply instanceof GuildMember && this.options.reply.nickname ? '!' : ''}${id}>, `;
-      if (isSplit) {
-        splitOptions.prepend = `${mentionPart}${splitOptions.prepend || ''}`;
-      }
-    }
-
-    if (content || mentionPart) {
+    if (content) {
       if (isCode) {
         const codeName = typeof this.options.code === 'string' ? this.options.code : '';
-        content = `${mentionPart}\`\`\`${codeName}\n${Util.cleanCodeBlockContent(content || '')}\n\`\`\``;
+        content = `\`\`\`${codeName}\n${Util.cleanCodeBlockContent(content)}\n\`\`\``;
         if (isSplit) {
           splitOptions.prepend = `${splitOptions.prepend || ''}\`\`\`${codeName}\n`;
           splitOptions.append = `\n\`\`\`${splitOptions.append || ''}`;
         }
-      } else if (mentionPart) {
-        content = `${mentionPart}${content || ''}`;
       }
 
       if (isSplit) {
-        content = Util.splitMessage(content || '', splitOptions);
+        content = Util.splitMessage(content, splitOptions);
       }
     }
 
@@ -149,8 +148,11 @@ class APIMessage {
 
     let nonce;
     if (typeof this.options.nonce !== 'undefined') {
-      nonce = parseInt(this.options.nonce);
-      if (isNaN(nonce) || nonce < 0) throw new RangeError('MESSAGE_NONCE_TYPE');
+      nonce = this.options.nonce;
+      // eslint-disable-next-line max-len
+      if (typeof nonce === 'number' ? !Number.isInteger(nonce) : typeof nonce !== 'string') {
+        throw new RangeError('MESSAGE_NONCE_TYPE');
+      }
     }
 
     const embedLikes = [];
@@ -174,6 +176,29 @@ class APIMessage {
     if (this.isMessage) {
       // eslint-disable-next-line eqeqeq
       flags = this.options.flags != null ? new MessageFlags(this.options.flags).bitfield : this.target.flags.bitfield;
+    } else if (this.isInteraction) {
+      flags = this.options.ephemeral ? MessageFlags.EPHEMERAL : undefined;
+    }
+
+    let allowedMentions =
+      typeof this.options.allowedMentions === 'undefined'
+        ? this.target.client.options.allowedMentions
+        : this.options.allowedMentions;
+
+    if (allowedMentions) {
+      allowedMentions = Util.cloneObject(allowedMentions);
+      allowedMentions.replied_user = allowedMentions.repliedUser;
+      delete allowedMentions.repliedUser;
+    }
+
+    let message_reference;
+    if (typeof this.options.replyTo !== 'undefined') {
+      const message_id = this.isMessage
+        ? this.target.channel.messages.resolveID(this.options.replyTo)
+        : this.target.messages.resolveID(this.options.replyTo);
+      if (message_id) {
+        message_reference = { message_id };
+      }
     }
 
     this.data = {
@@ -184,8 +209,10 @@ class APIMessage {
       embeds,
       username,
       avatar_url: avatarURL,
-      allowed_mentions: this.options.allowedMentions,
+      allowed_mentions:
+        typeof content === 'undefined' && typeof message_reference === 'undefined' ? undefined : allowedMentions,
       flags,
+      message_reference,
     };
     return this;
   }
@@ -239,8 +266,8 @@ class APIMessage {
         data = { ...this.data, content: this.data.content[i] };
         opt = { ...this.options, content: this.data.content[i] };
       } else {
-        data = { content: this.data.content[i], tts: this.data.tts };
-        opt = { content: this.data.content[i], tts: this.data.tts };
+        data = { content: this.data.content[i], tts: this.data.tts, allowed_mentions: this.options.allowedMentions };
+        opt = { content: this.data.content[i], tts: this.data.tts, allowedMentions: this.options.allowedMentions };
       }
 
       const apiMessage = new APIMessage(this.target, opt);

src/structures/ApplicationCommand.js

@@ -0,0 +1,102 @@
+'use strict';
+
+const Base = require('./Base');
+const { ApplicationCommandOptionType } = require('../util/Constants');
+const Snowflake = require('../util/Snowflake');
+
+/**
+ * Represents an application command, see {@link InteractionClient}.
+ * @extends {Base}
+ */
+class ApplicationCommand extends Base {
+  constructor(client, data, guildID) {
+    super(client);
+
+    /**
+     * The ID of the guild this command is part of, if any.
+     * @type {Snowflake?}
+     * @readonly
+     */
+    this.guildID = guildID || null;
+
+    this._patch(data);
+  }
+
+  _patch(data) {
+    /**
+     * The ID of this command.
+     * @type {Snowflake}
+     * @readonly
+     */
+    this.id = data.id;
+
+    /**
+     * The ID of the application which owns this command.
+     * @type {Snowflake}
+     * @readonly
+     */
+    this.appplicationID = data.application_id;
+
+    /**
+     * The name of this command.
+     * @type {string}
+     * @readonly
+     */
+    this.name = data.name;
+
+    /**
+     * The description of this command.
+     * @type {string}
+     * @readonly
+     */
+    this.description = data.description;
+
+    /**
+     * The options of this command.
+     * @type {Object[]}
+     * @readonly
+     */
+    this.options = data.options?.map(function m(o) {
+      return {
+        type: ApplicationCommandOptionType[o.type],
+        name: o.name,
+        description: o.description,
+        default: o.default,
+        required: o.required,
+        choices: o.choices,
+        options: o.options ? o.options.map(m) : undefined,
+      };
+    });
+  }
+
+  /**
+   * The timestamp the command was created at.
+   * @type {number}
+   * @readonly
+   */
+  get createdTimestamp() {
+    return Snowflake.deconstruct(this.id).timestamp;
+  }
+
+  /**
+   * The time the command was created at.
+   * @type {Date}
+   * @readonly
+   */
+  get createdAt() {
+    return new Date(this.createdTimestamp);
+  }
+
+  /**
+   * Delete this command.
+   */
+  async delete() {
+    let path = this.client.api.applications('@me');
+    if (this.guildID) {
+      path = path.guilds(this.guildID);
+    }
+    await path.commands(this.id).delete();
+  }
+}
+
+module.exports = ApplicationCommand;

src/structures/Base.js

@@ -4,6 +4,7 @@ const Util = require('../util/Util');
 
 /**
  * Represents a data model that is identifiable by a Snowflake (i.e. Discord API data models).
+ * @abstract
  */
 class Base {
   constructor(client) {

src/structures/BaseGuildEmoji.js

@@ -5,6 +5,7 @@ const Emoji = require('./Emoji');
 /**
  * Parent class for {@link GuildEmoji} and {@link GuildPreviewEmoji}.
  * @extends {Emoji}
+ * @abstract
  */
 class BaseGuildEmoji extends Emoji {
   constructor(client, data, guild) {
@@ -16,6 +17,10 @@ class BaseGuildEmoji extends Emoji {
      */
     this.guild = guild;
 
+    this.requiresColons = null;
+    this.managed = null;
+    this.available = null;
+
     /**
      * Array of role ids this emoji is active for
      * @name BaseGuildEmoji#_roles
@@ -30,26 +35,29 @@ class BaseGuildEmoji extends Emoji {
   _patch(data) {
     if (data.name) this.name = data.name;
 
-    /**
-     * Whether or not this emoji requires colons surrounding it
-     * @type {boolean}
-     * @name GuildEmoji#requiresColons
-     */
-    if (typeof data.require_colons !== 'undefined') this.requiresColons = data.require_colons;
+    if (typeof data.require_colons !== 'undefined') {
+      /**
+       * Whether or not this emoji requires colons surrounding it
+       * @type {?boolean}
+       */
+      this.requiresColons = data.require_colons;
+    }
 
-    /**
-     * Whether this emoji is managed by an external service
-     * @type {boolean}
-     * @name GuildEmoji#managed
-     */
-    if (typeof data.managed !== 'undefined') this.managed = data.managed;
+    if (typeof data.managed !== 'undefined') {
+      /**
+       * Whether this emoji is managed by an external service
+       * @type {?boolean}
+       */
+      this.managed = data.managed;
+    }
 
-    /**
-     * Whether this emoji is available
-     * @type {boolean}
-     * @name GuildEmoji#available
-     */
-    if (typeof data.available !== 'undefined') this.available = data.available;
+    if (typeof data.available !== 'undefined') {
+      /**
+       * Whether this emoji is available
+       * @type {?boolean}
+       */
+      this.available = data.available;
+    }
 
     if (data.roles) this._roles = data.roles;
   }

src/structures/CategoryChannel.js

@@ -9,7 +9,7 @@ const GuildChannel = require('./GuildChannel');
 class CategoryChannel extends GuildChannel {
   /**
    * Channels that are a part of this category
-   * @type {?Collection<Snowflake, GuildChannel>}
+   * @type {Collection<Snowflake, GuildChannel>}
    * @readonly
    */
   get children() {

src/structures/Channel.js

@@ -7,6 +7,7 @@ const Snowflake = require('../util/Snowflake');
 /**
  * Represents any channel on Discord.
  * @extends {Base}
+ * @abstract
  */
 class Channel extends Base {
   constructor(client, data) {
@@ -90,10 +91,19 @@ class Channel extends Base {
 
   /**
    * Fetches this channel.
+   * @param {boolean} [force=false] Whether to skip the cache check and request the API
    * @returns {Promise<Channel>}
    */
-  fetch() {
-    return this.client.channels.fetch(this.id, true);
+  fetch(force = false) {
+    return this.client.channels.fetch(this.id, true, force);
+  }
+
+  /**
+   * Indicates whether this channel is text-based.
+   * @returns {boolean}
+   */
+  isText() {
+    return 'messages' in this;
   }
 
   static create(client, data, guild) {

src/structures/ClientApplication.js

@@ -1,46 +1,15 @@
 'use strict';
 
-const Base = require('./Base');
 const Team = require('./Team');
-const { ClientApplicationAssetTypes, Endpoints } = require('../util/Constants');
-const Snowflake = require('../util/Snowflake');
-
-const AssetTypes = Object.keys(ClientApplicationAssetTypes);
+const Application = require('./interfaces/Application');
 
 /**
  * Represents a Client OAuth2 Application.
- * @extends {Base}
+ * @extends {Application}
  */
-class ClientApplication extends Base {
-  constructor(client, data) {
-    super(client);
-    this._patch(data);
-  }
-
+class ClientApplication extends Application {
   _patch(data) {
-    /**
-     * The ID of the app
-     * @type {Snowflake}
-     */
-    this.id = data.id;
-
-    /**
-     * The name of the app
-     * @type {string}
-     */
-    this.name = data.name;
-
-    /**
-     * The app's description
-     * @type {string}
-     */
-    this.description = data.description;
-
-    /**
-     * The app's icon hash
-     * @type {string}
-     */
-    this.icon = data.icon;
+    super._patch(data);
 
     /**
      * The app's cover image
@@ -72,85 +41,6 @@ class ClientApplication extends Base {
      */
     this.owner = data.team ? new Team(this.client, data.team) : data.owner ? this.client.users.add(data.owner) : null;
   }
-
-  /**
-   * The timestamp the app was created at
-   * @type {number}
-   * @readonly
-   */
-  get createdTimestamp() {
-    return Snowflake.deconstruct(this.id).timestamp;
-  }
-
-  /**
-   * The time the app was created at
-   * @type {Date}
-   * @readonly
-   */
-  get createdAt() {
-    return new Date(this.createdTimestamp);
-  }
-
-  /**
-   * A link to the application's icon.
-   * @param {ImageURLOptions} [options={}] Options for the Image URL
-   * @returns {?string} URL to the icon
-   */
-  iconURL({ format, size } = {}) {
-    if (!this.icon) return null;
-    return this.client.rest.cdn.AppIcon(this.id, this.icon, { format, size });
-  }
-
-  /**
-   * A link to this application's cover image.
-   * @param {ImageURLOptions} [options={}] Options for the Image URL
-   * @returns {?string} URL to the cover image
-   */
-  coverImage({ format, size } = {}) {
-    if (!this.cover) return null;
-    return Endpoints.CDN(this.client.options.http.cdn).AppIcon(this.id, this.cover, { format, size });
-  }
-
-  /**
-   * Asset data.
-   * @typedef {Object} ClientAsset
-   * @property {Snowflake} id The asset ID
-   * @property {string} name The asset name
-   * @property {string} type The asset type
-   */
-
-  /**
-   * Gets the clients rich presence assets.
-   * @returns {Promise<Array<ClientAsset>>}
-   */
-  fetchAssets() {
-    return this.client.api.oauth2
-      .applications(this.id)
-      .assets.get()
-      .then(assets =>
-        assets.map(a => ({
-          id: a.id,
-          name: a.name,
-          type: AssetTypes[a.type - 1],
-        })),
-      );
-  }
-
-  /**
-   * When concatenated with a string, this automatically returns the application's name instead of the
-   * ClientApplication object.
-   * @returns {string}
-   * @example
-   * // Logs: Application name: My App
-   * console.log(`Application name: ${application}`);
-   */
-  toString() {
-    return this.name;
-  }
-
-  toJSON() {
-    return super.toJSON({ createdTimestamp: true });
-  }
 }
 
 module.exports = ClientApplication;

src/structures/ClientUser.js

@@ -94,11 +94,9 @@ class ClientUser extends Structures.get('User') {
    * @property {PresenceStatusData} [status] Status of the user
    * @property {boolean} [afk] Whether the user is AFK
    * @property {Object} [activity] Activity the user is playing
-   * @property {Object|string} [activity.application] An application object or application id
-   * @property {string} [activity.application.id] The id of the application
    * @property {string} [activity.name] Name of the activity
    * @property {ActivityType|number} [activity.type] Type of the activity
-   * @property {string} [activity.url] Stream url
+   * @property {string} [activity.url] Twitch / YouTube stream URL
    * @property {?number|number[]} [shardID] Shard Id(s) to have the activity set on
    */
 
@@ -141,10 +139,10 @@ class ClientUser extends Structures.get('User') {
   }
 
   /**
-   * Options for setting an activity
+   * Options for setting an activity.
    * @typedef ActivityOptions
    * @type {Object}
-   * @property {string} [url] Twitch stream URL
+   * @property {string} [url] Twitch / YouTube stream URL
    * @property {ActivityType|number} [type] Type of the activity
    * @property {?number|number[]} [shardID] Shard Id(s) to have the activity set on
    */

src/structures/DMChannel.js

@@ -61,10 +61,11 @@ class DMChannel extends Channel {
 
   /**
    * Fetch this DMChannel.
+   * @param {boolean} [force=false] Whether to skip the cache check and request the API
    * @returns {Promise<DMChannel>}
    */
-  fetch() {
-    return this.recipient.createDM();
+  fetch(force = false) {
+    return this.recipient.createDM(force);
   }
 
   /**

src/structures/Emoji.js

@@ -82,7 +82,7 @@ class Emoji extends Base {
    * @example
    * // Send a custom emoji from a guild:
    * const emoji = guild.emojis.cache.first();
-   * msg.reply(`Hello! ${emoji}`);
+   * msg.channel.send(`Hello! ${emoji}`);
    * @example
    * // Send the emoji used in a reaction to the channel the reaction is part of
    * reaction.message.channel.send(`The emoji used was: ${reaction.emoji}`);

src/structures/Guild.js

@@ -1,12 +1,15 @@
 'use strict';
 
+const { deprecate } = require('util');
 const Base = require('./Base');
 const GuildAuditLogs = require('./GuildAuditLogs');
 const GuildPreview = require('./GuildPreview');
+const GuildTemplate = require('./GuildTemplate');
 const Integration = require('./Integration');
 const Invite = require('./Invite');
 const VoiceRegion = require('./VoiceRegion');
 const Webhook = require('./Webhook');
+const { Error, TypeError } = require('../errors');
 const GuildChannelManager = require('../managers/GuildChannelManager');
 const GuildEmojiManager = require('../managers/GuildEmojiManager');
 const GuildMemberManager = require('../managers/GuildMemberManager');
@@ -15,6 +18,7 @@ const RoleManager = require('../managers/RoleManager');
 const VoiceStateManager = require('../managers/VoiceStateManager');
 const Collection = require('../util/Collection');
 const {
+  browser,
   ChannelTypes,
   DefaultMessageNotifications,
   PartialTypes,
@@ -129,11 +133,17 @@ class Guild extends Base {
     this.icon = data.icon;
 
     /**
-     * The hash of the guild splash image (VIP only)
+     * The hash of the guild invite splash image
      * @type {?string}
      */
     this.splash = data.splash;
 
+    /**
+     * The hash of the guild discovery splash image
+     * @type {?string}
+     */
+    this.discoverySplash = data.discovery_splash;
+
     /**
      * The region the guild is located in
      * @type {string}
@@ -147,7 +157,7 @@ class Guild extends Base {
     this.memberCount = data.member_count || this.memberCount;
 
     /**
-     * Whether the guild is "large" (has more than 250 members)
+     * Whether the guild is "large" (has more than large_threshold members, 50 by default)
      * @type {boolean}
      */
     this.large = Boolean('large' in data ? data.large : this.large);
@@ -157,15 +167,17 @@ class Guild extends Base {
      * * ANIMATED_ICON
      * * BANNER
      * * COMMERCE
+     * * COMMUNITY
      * * DISCOVERABLE
      * * FEATURABLE
      * * INVITE_SPLASH
-     * * PUBLIC
      * * NEWS
      * * PARTNERED
+     * * RELAY_ENABLED
      * * VANITY_URL
      * * VERIFIED
      * * VIP_REGIONS
+     * * WELCOME_SCREEN_ENABLED
      * @typedef {string} Features
      */
 
@@ -202,6 +214,7 @@ class Guild extends Base {
     /**
      * Whether embedded images are enabled on this guild
      * @type {boolean}
+     * @deprecated
      */
     this.embedEnabled = data.embed_enabled;
 
@@ -220,35 +233,38 @@ class Guild extends Base {
      */
     this.premiumTier = data.premium_tier;
 
-    /**
-     * The total number of users currently boosting this server
-     * @type {?number}
-     * @name Guild#premiumSubscriptionCount
-     */
     if (typeof data.premium_subscription_count !== 'undefined') {
+      /**
+       * The total number of boosts for this server
+       * @type {?number}
+       */
       this.premiumSubscriptionCount = data.premium_subscription_count;
     }
 
-    /**
-     * Whether widget images are enabled on this guild
-     * @type {?boolean}
-     * @name Guild#widgetEnabled
-     */
-    if (typeof data.widget_enabled !== 'undefined') this.widgetEnabled = data.widget_enabled;
+    if (typeof data.widget_enabled !== 'undefined') {
+      /**
+       * Whether widget images are enabled on this guild
+       * @type {?boolean}
+       */
+      this.widgetEnabled = data.widget_enabled;
+    }
 
-    /**
-     * The widget channel ID, if enabled
-     * @type {?string}
-     * @name Guild#widgetChannelID
-     */
-    if (typeof data.widget_channel_id !== 'undefined') this.widgetChannelID = data.widget_channel_id;
+    if (typeof data.widget_channel_id !== 'undefined') {
+      /**
+       * The widget channel ID, if enabled
+       * @type {?string}
+       */
+      this.widgetChannelID = data.widget_channel_id;
+    }
 
-    /**
-     * The embed channel ID, if enabled
-     * @type {?string}
-     * @name Guild#embedChannelID
-     */
-    if (typeof data.embed_channel_id !== 'undefined') this.embedChannelID = data.embed_channel_id;
+    if (typeof data.embed_channel_id !== 'undefined') {
+      /**
+       * The embed channel ID, if enabled
+       * @type {?string}
+       * @deprecated
+       */
+      this.embedChannelID = data.embed_channel_id;
+    }
 
     /**
      * The verification level of the guild
@@ -287,28 +303,64 @@ class Guild extends Base {
      */
     this.systemChannelFlags = new SystemChannelFlags(data.system_channel_flags).freeze();
 
-    /**
-     * The maximum amount of members the guild can have
-     * <info>You will need to fetch the guild using {@link Guild#fetch} if you want to receive this parameter</info>
-     * @type {?number}
-     * @name Guild#maximumMembers
-     */
-    if (typeof data.max_members !== 'undefined') this.maximumMembers = data.max_members || 250000;
+    if (typeof data.max_members !== 'undefined') {
+      /**
+       * The maximum amount of members the guild can have
+       * @type {?number}
+       */
+      this.maximumMembers = data.max_members;
+    } else if (typeof this.maximumMembers === 'undefined') {
+      this.maximumMembers = null;
+    }
+
+    if (typeof data.max_presences !== 'undefined') {
+      /**
+       * The maximum amount of presences the guild can have
+       * <info>You will need to fetch the guild using {@link Guild#fetch} if you want to receive this parameter</info>
+       * @type {?number}
+       */
+      this.maximumPresences = data.max_presences || 25000;
+    } else if (typeof this.maximumPresences === 'undefined') {
+      this.maximumPresences = null;
+    }
+
+    if (typeof data.approximate_member_count !== 'undefined') {
+      /**
+       * The approximate amount of members the guild has
+       * <info>You will need to fetch the guild using {@link Guild#fetch} if you want to receive this parameter</info>
+       * @type {?number}
+       */
+      this.approximateMemberCount = data.approximate_member_count;
+    } else if (typeof this.approximateMemberCount === 'undefined') {
+      this.approximateMemberCount = null;
+    }
+
+    if (typeof data.approximate_presence_count !== 'undefined') {
+      /**
+       * The approximate amount of presences the guild has
+       * <info>You will need to fetch the guild using {@link Guild#fetch} if you want to receive this parameter</info>
+       * @type {?number}
+       */
+      this.approximatePresenceCount = data.approximate_presence_count;
+    } else if (typeof this.approximatePresenceCount === 'undefined') {
+      this.approximatePresenceCount = null;
+    }
 
     /**
-     * The maximum amount of presences the guild can have
-     * <info>You will need to fetch the guild using {@link Guild#fetch} if you want to receive this parameter</info>
-     * @type {?number}
-     * @name Guild#maximumPresences
-     */
-    if (typeof data.max_presences !== 'undefined') this.maximumPresences = data.max_presences || 25000;
-
-    /**
-     * The vanity URL code of the guild, if any
+     * The vanity invite code of the guild, if any
      * @type {?string}
      */
     this.vanityURLCode = data.vanity_url_code;
 
+    /* eslint-disable max-len */
+    /**
+     * The use count of the vanity URL code of the guild, if any
+     * <info>You will need to fetch this parameter using {@link Guild#fetchVanityData} if you want to receive it</info>
+     * @type {?number}
+     */
+    this.vanityURLUses = null;
+    /* eslint-enable max-len */
+
     /**
      * The description of the guild, if any
      * @type {?string}
@@ -327,18 +379,22 @@ class Guild extends Base {
 
     /**
      * The ID of the rules channel for the guild
-     * <info>This is only available on guilds with the `PUBLIC` feature</info>
      * @type {?Snowflake}
      */
     this.rulesChannelID = data.rules_channel_id;
 
     /**
-     * The ID of the public updates channel for the guild
-     * <info>This is only available on guilds with the `PUBLIC` feature</info>
+     * The ID of the community updates channel for the guild
      * @type {?Snowflake}
      */
     this.publicUpdatesChannelID = data.public_updates_channel_id;
 
+    /**
+     * The preferred locale of the guild, defaults to `en-US`
+     * @type {string}
+     */
+    this.preferredLocale = data.preferred_locale;
+
     if (data.channels) {
       this.channels.cache.clear();
       for (const rawChannel of data.channels) {
@@ -463,11 +519,14 @@ class Guild extends Base {
    * @readonly
    */
   get nameAcronym() {
-    return this.name.replace(/\w+/g, name => name[0]).replace(/\s/g, '');
+    return this.name
+      .replace(/'s /g, ' ')
+      .replace(/\w+/g, e => e[0])
+      .replace(/\s/g, '');
   }
 
   /**
-   * The URL to this guild's splash.
+   * The URL to this guild's invite splash image.
    * @param {ImageURLOptions} [options={}] Options for the Image URL
    * @returns {?string}
    */
@@ -476,6 +535,16 @@ class Guild extends Base {
     return this.client.rest.cdn.Splash(this.id, this.splash, format, size);
   }
 
+  /**
+   * The URL to this guild's discovery splash image.
+   * @param {ImageURLOptions} [options={}] Options for the Image URL
+   * @returns {?string}
+   */
+  discoverySplashURL({ format, size } = {}) {
+    if (!this.discoverySplash) return null;
+    return this.client.rest.cdn.DiscoverySplash(this.id, this.discoverySplash, format, size);
+  }
+
   /**
    * The owner of the guild
    * @type {?GuildMember}
@@ -521,6 +590,7 @@ class Guild extends Base {
    * Embed channel for this guild
    * @type {?TextChannel}
    * @readonly
+   * @deprecated
    */
   get embedChannel() {
     return this.client.channels.cache.get(this.embedChannelID) || null;
@@ -528,7 +598,6 @@ class Guild extends Base {
 
   /**
    * Rules channel for this guild
-   * <info>This is only available on guilds with the `PUBLIC` feature</info>
    * @type {?TextChannel}
    * @readonly
    */
@@ -538,7 +607,6 @@ class Guild extends Base {
 
   /**
    * Public updates channel for this guild
-   * <info>This is only available on guilds with the `PUBLIC` feature</info>
    * @type {?TextChannel}
    * @readonly
    */
@@ -569,18 +637,6 @@ class Guild extends Base {
     return this.voiceStates.cache.get(this.client.user.id);
   }
 
-  /**
-   * Returns the GuildMember form of a User object, if the user is present in the guild.
-   * @param {UserResolvable} user The user that you want to obtain the GuildMember of
-   * @returns {?GuildMember}
-   * @example
-   * // Get the guild member of a user
-   * const member = guild.member(message.author);
-   */
-  member(user) {
-    return this.members.resolve(user);
-  }
-
   /**
    * Fetches this guild.
    * @returns {Promise<Guild>}
@@ -588,7 +644,7 @@ class Guild extends Base {
   fetch() {
     return this.client.api
       .guilds(this.id)
-      .get()
+      .get({ query: { with_counts: true } })
       .then(data => {
         this._patch(data);
         return this;
@@ -642,6 +698,8 @@ class Guild extends Base {
   /**
    * Fetches a collection of integrations to this guild.
    * Resolves with a collection mapping integrations by their ids.
+   * @param {Object} [options] Options for fetching integrations
+   * @param {boolean} [options.includeApplications] Whether to include bot and Oauth2 webhook integrations
    * @returns {Promise<Collection<string, Integration>>}
    * @example
    * // Fetch integrations
@@ -649,10 +707,14 @@ class Guild extends Base {
    *   .then(integrations => console.log(`Fetched ${integrations.size} integrations`))
    *   .catch(console.error);
    */
-  fetchIntegrations() {
+  fetchIntegrations({ includeApplications = false } = {}) {
     return this.client.api
       .guilds(this.id)
-      .integrations.get()
+      .integrations.get({
+        query: {
+          include_applications: includeApplications,
+        },
+      })
       .then(data =>
         data.reduce(
           (collection, integration) => collection.set(integration.id, new Integration(this.client, integration, this)),
@@ -661,6 +723,20 @@ class Guild extends Base {
       );
   }
 
+  /**
+   * Fetches a collection of templates from this guild.
+   * Resolves with a collection mapping templates by their codes.
+   * @returns {Promise<Collection<string, GuildTemplate>>}
+   */
+  fetchTemplates() {
+    return this.client.api
+      .guilds(this.id)
+      .templates.get()
+      .then(templates =>
+        templates.reduce((col, data) => col.set(data.code, new GuildTemplate(this.client, data)), new Collection()),
+      );
+  }
+
   /**
    * The data for creating an integration.
    * @typedef {Object} IntegrationData
@@ -681,6 +757,19 @@ class Guild extends Base {
       .then(() => this);
   }
 
+  /**
+   * Creates a template for the guild.
+   * @param {string} name The name for the template
+   * @param {string} [description] The description for the template
+   * @returns {Promise<GuildTemplate>}
+   */
+  createTemplate(name, description) {
+    return this.client.api
+      .guilds(this.id)
+      .templates.post({ data: { name, description } })
+      .then(data => new GuildTemplate(this.client, data));
+  }
+
   /**
    * Fetches a collection of invites to this guild.
    * Resolves with a collection mapping invites by their codes.
@@ -711,7 +800,7 @@ class Guild extends Base {
   }
 
   /**
-   * Obtains a guild preview for this guild from Discord, only available for public guilds.
+   * Obtains a guild preview for this guild from Discord.
    * @returns {Promise<GuildPreview>}
    */
   fetchPreview() {
@@ -725,6 +814,7 @@ class Guild extends Base {
    * Fetches the vanity url invite code to this guild.
    * Resolves with a string matching the vanity url invite code, not the full url.
    * @returns {Promise<string>}
+   * @deprecated
    * @example
    * // Fetch invites
    * guild.fetchVanityCode()
@@ -734,13 +824,36 @@ class Guild extends Base {
    *   .catch(console.error);
    */
   fetchVanityCode() {
+    return this.fetchVanityData().then(vanity => vanity.code);
+  }
+
+  /**
+   * An object containing information about a guild's vanity invite.
+   * @typedef {Object} Vanity
+   * @property {?string} code Vanity invite code
+   * @property {?number} uses How many times this invite has been used
+   */
+
+  /**
+   * Fetches the vanity url invite object to this guild.
+   * Resolves with an object containing the vanity url invite code and the use count
+   * @returns {Promise<Vanity>}
+   * @example
+   * // Fetch invite data
+   * guild.fetchVanityData()
+   *   .then(res => {
+   *     console.log(`Vanity URL: https://discord.gg/${res.code} with ${res.uses} uses`);
+   *   })
+   *   .catch(console.error);
+   */
+  async fetchVanityData() {
     if (!this.features.includes('VANITY_URL')) {
-      return Promise.reject(new Error('VANITY_URL'));
+      throw new Error('VANITY_URL');
     }
-    return this.client.api
-      .guilds(this.id, 'vanity-url')
-      .get()
-      .then(res => res.code);
+    const data = await this.client.api.guilds(this.id, 'vanity-url').get();
+    this.vanityURLUses = data.uses;
+
+    return data;
   }
 
   /**
@@ -779,15 +892,23 @@ class Guild extends Base {
   }
 
   /**
-   * The Guild Embed object
-   * @typedef {Object} GuildEmbedData
-   * @property {boolean} enabled Whether the embed is enabled
-   * @property {?GuildChannel} channel The embed channel
+   * Data for the Guild Widget object
+   * @typedef {Object} GuildWidget
+   * @property {boolean} enabled Whether the widget is enabled
+   * @property {?GuildChannel} channel The widget channel
+   */
+
+  /**
+   * The Guild Widget object
+   * @typedef {Object} GuildWidgetData
+   * @property {boolean} enabled Whether the widget is enabled
+   * @property {?GuildChannelResolvable} channel The widget channel
    */
 
   /**
    * Fetches the guild embed.
-   * @returns {Promise<GuildEmbedData>}
+   * @returns {Promise<GuildWidget>}
+   * @deprecated
    * @example
    * // Fetches the guild embed
    * guild.fetchEmbed()
@@ -795,13 +916,26 @@ class Guild extends Base {
    *   .catch(console.error);
    */
   fetchEmbed() {
-    return this.client.api
-      .guilds(this.id)
-      .embed.get()
-      .then(data => ({
-        enabled: data.enabled,
-        channel: data.channel_id ? this.channels.cache.get(data.channel_id) : null,
-      }));
+    return this.fetchWidget();
+  }
+
+  /**
+   * Fetches the guild widget.
+   * @returns {Promise<GuildWidget>}
+   * @example
+   * // Fetches the guild widget
+   * guild.fetchWidget()
+   *   .then(widget => console.log(`The widget is ${widget.enabled ? 'enabled' : 'disabled'}`))
+   *   .catch(console.error);
+   */
+  async fetchWidget() {
+    const data = await this.client.api.guilds(this.id).widget.get();
+    this.widgetEnabled = this.embedEnabled = data.enabled;
+    this.widgetChannelID = this.embedChannelID = data.channel_id;
+    return {
+      enabled: data.enabled,
+      channel: data.channel_id ? this.channels.cache.get(data.channel_id) : null,
+    };
   }
 
   /**
@@ -848,29 +982,25 @@ class Guild extends Base {
    * @param {boolean} [options.deaf] Whether the member should be deafened (requires `DEAFEN_MEMBERS`)
    * @returns {Promise<GuildMember>}
    */
-  addMember(user, options) {
+  async addMember(user, options) {
     user = this.client.users.resolveID(user);
-    if (!user) return Promise.reject(new TypeError('INVALID_TYPE', 'user', 'UserResolvable'));
-    if (this.members.cache.has(user)) return Promise.resolve(this.members.cache.get(user));
+    if (!user) throw new TypeError('INVALID_TYPE', 'user', 'UserResolvable');
+    if (this.members.cache.has(user)) return this.members.cache.get(user);
     options.access_token = options.accessToken;
     if (options.roles) {
       const roles = [];
       for (let role of options.roles instanceof Collection ? options.roles.values() : options.roles) {
         role = this.roles.resolve(role);
         if (!role) {
-          return Promise.reject(
-            new TypeError('INVALID_TYPE', 'options.roles', 'Array or Collection of Roles or Snowflakes', true),
-          );
+          throw new TypeError('INVALID_TYPE', 'options.roles', 'Array or Collection of Roles or Snowflakes', true);
         }
         roles.push(role.id);
       }
       options.roles = roles;
     }
-    return this.client.api
-      .guilds(this.id)
-      .members(user)
-      .put({ data: options })
-      .then(data => this.members.add(data));
+    const data = await this.client.api.guilds(this.id).members(user).put({ data: options });
+    // Data is an empty buffer if the member is already part of the guild.
+    return data instanceof (browser ? ArrayBuffer : Buffer) ? this.members.fetch(user) : this.members.add(data);
   }
 
   /**
@@ -885,10 +1015,14 @@ class Guild extends Base {
    * @property {number} [afkTimeout] The AFK timeout of the guild
    * @property {Base64Resolvable} [icon] The icon of the guild
    * @property {GuildMemberResolvable} [owner] The owner of the guild
-   * @property {Base64Resolvable} [splash] The splash screen of the guild
+   * @property {Base64Resolvable} [splash] The invite splash image of the guild
+   * @property {Base64Resolvable} [discoverySplash] The discovery splash image of the guild
    * @property {Base64Resolvable} [banner] The banner of the guild
    * @property {DefaultMessageNotifications|number} [defaultMessageNotifications] The default message notifications
    * @property {SystemChannelFlagsResolvable} [systemChannelFlags] The system channel flags of the guild
+   * @property {ChannelResolvable} [rulesChannel] The rules channel of the guild
+   * @property {ChannelResolvable} [publicUpdatesChannel] The community updates channel of the guild
+   * @property {string} [preferredLocale] The preferred locale of the guild
    */
 
   /**
@@ -925,6 +1059,7 @@ class Guild extends Base {
     if (typeof data.icon !== 'undefined') _data.icon = data.icon;
     if (data.owner) _data.owner_id = this.client.users.resolveID(data.owner);
     if (data.splash) _data.splash = data.splash;
+    if (data.discoverySplash) _data.discovery_splash = data.discoverySplash;
     if (data.banner) _data.banner = data.banner;
     if (typeof data.explicitContentFilter !== 'undefined') {
       _data.explicit_content_filter =
@@ -941,6 +1076,13 @@ class Guild extends Base {
     if (typeof data.systemChannelFlags !== 'undefined') {
       _data.system_channel_flags = SystemChannelFlags.resolve(data.systemChannelFlags);
     }
+    if (typeof data.rulesChannel !== 'undefined') {
+      _data.rules_channel_id = this.client.channels.resolveID(data.rulesChannel);
+    }
+    if (typeof data.publicUpdatesChannel !== 'undefined') {
+      _data.public_updates_channel_id = this.client.channels.resolveID(data.publicUpdatesChannel);
+    }
+    if (data.preferredLocale) _data.preferred_locale = data.preferredLocale;
     return this.client.api
       .guilds(this.id)
       .patch({ data: _data, reason })
@@ -987,7 +1129,7 @@ class Guild extends Base {
    * @example
    * // Edit the guild name
    * guild.setName('Discord Guild')
-   *  .then(updated => console.log(`Updated guild name to ${guild}`))
+   *  .then(updated => console.log(`Updated guild name to ${updated.name}`))
    *  .catch(console.error);
    */
   setName(name, reason) {
@@ -1100,9 +1242,9 @@ class Guild extends Base {
   }
 
   /**
-   * Sets a new guild splash screen.
-   * @param {Base64Resolvable|BufferResolvable} splash The new splash screen of the guild
-   * @param {string} [reason] Reason for changing the guild's splash screen
+   * Sets a new guild invite splash image.
+   * @param {Base64Resolvable|BufferResolvable} splash The new invite splash image of the guild
+   * @param {string} [reason] Reason for changing the guild's invite splash image
    * @returns {Promise<Guild>}
    * @example
    * // Edit the guild splash
@@ -1114,6 +1256,21 @@ class Guild extends Base {
     return this.edit({ splash: await DataResolver.resolveImage(splash), reason });
   }
 
+  /**
+   * Sets a new guild discovery splash image.
+   * @param {Base64Resolvable|BufferResolvable} discoverySplash The new discovery splash image of the guild
+   * @param {string} [reason] Reason for changing the guild's discovery splash image
+   * @returns {Promise<Guild>}
+   * @example
+   * // Edit the guild discovery splash
+   * guild.setDiscoverySplash('./discoverysplash.png')
+   *   .then(updated => console.log('Updated the guild discovery splash'))
+   *   .catch(console.error);
+   */
+  async setDiscoverySplash(discoverySplash, reason) {
+    return this.edit({ discoverySplash: await DataResolver.resolveImage(discoverySplash), reason });
+  }
+
   /**
    * Sets a new guild banner.
    * @param {Base64Resolvable|BufferResolvable} banner The new banner of the guild
@@ -1128,6 +1285,51 @@ class Guild extends Base {
     return this.edit({ banner: await DataResolver.resolveImage(banner), reason });
   }
 
+  /**
+   * Edits the rules channel of the guild.
+   * @param {ChannelResolvable} rulesChannel The new rules channel
+   * @param {string} [reason] Reason for changing the guild's rules channel
+   * @returns {Promise<Guild>}
+   * @example
+   * // Edit the guild rules channel
+   * guild.setRulesChannel(channel)
+   *  .then(updated => console.log(`Updated guild rules channel to ${guild.rulesChannel.name}`))
+   *  .catch(console.error);
+   */
+  setRulesChannel(rulesChannel, reason) {
+    return this.edit({ rulesChannel }, reason);
+  }
+
+  /**
+   * Edits the community updates channel of the guild.
+   * @param {ChannelResolvable} publicUpdatesChannel The new community updates channel
+   * @param {string} [reason] Reason for changing the guild's community updates channel
+   * @returns {Promise<Guild>}
+   * @example
+   * // Edit the guild community updates channel
+   * guild.setPublicUpdatesChannel(channel)
+   *  .then(updated => console.log(`Updated guild community updates channel to ${guild.publicUpdatesChannel.name}`))
+   *  .catch(console.error);
+   */
+  setPublicUpdatesChannel(publicUpdatesChannel, reason) {
+    return this.edit({ publicUpdatesChannel }, reason);
+  }
+
+  /**
+   * Edits the preferred locale of the guild.
+   * @param {string} preferredLocale The new preferred locale of the guild
+   * @param {string} [reason] Reason for changing the guild's preferred locale
+   * @returns {Promise<Guild>}
+   * @example
+   * // Edit the guild preferred locale
+   * guild.setPreferredLocale('en-US')
+   *  .then(updated => console.log(`Updated guild preferred locale to ${guild.preferredLocale}`))
+   *  .catch(console.error);
+   */
+  setPreferredLocale(preferredLocale, reason) {
+    return this.edit({ preferredLocale }, reason);
+  }
+
   /**
    * The data needed for updating a channel's position.
    * @typedef {Object} ChannelPosition
@@ -1202,23 +1404,51 @@ class Guild extends Base {
 
   /**
    * Edits the guild's embed.
-   * @param {GuildEmbedData} embed The embed for the guild
+   * @param {GuildWidgetData} embed The embed for the guild
    * @param {string} [reason] Reason for changing the guild's embed
    * @returns {Promise<Guild>}
+   * @deprecated
    */
   setEmbed(embed, reason) {
+    return this.setWidget(embed, reason);
+  }
+
+  /**
+   * Edits the guild's widget.
+   * @param {GuildWidgetData} widget The widget for the guild
+   * @param {string} [reason] Reason for changing the guild's widget
+   * @returns {Promise<Guild>}
+   */
+  setWidget(widget, reason) {
     return this.client.api
       .guilds(this.id)
-      .embed.patch({
+      .widget.patch({
         data: {
-          enabled: embed.enabled,
-          channel_id: this.channels.resolveID(embed.channel),
+          enabled: widget.enabled,
+          channel_id: this.channels.resolveID(widget.channel),
         },
         reason,
       })
       .then(() => this);
   }
 
+  /**
+   * Get the commands associated with this guild.
+   * @returns {ApplicationCommand[]} A list of commands.
+   */
+  getCommands() {
+    return this.client.interactionClient.getCommands(this.id);
+  }
+
+  /**
+   * Create a command. See {@link InteractionClient}.
+   * @param {Object} command The command description.
+   * @returns {ApplicationCommand} The created command.
+   */
+  createCommand(command) {
+    return this.client.interactionClient.createCommand(command, this.id);
+  }
+
   /**
    * Leaves the guild.
    * @returns {Promise<Guild>}
@@ -1267,6 +1497,7 @@ class Guild extends Base {
       this.id === guild.id &&
       this.available === guild.available &&
       this.splash === guild.splash &&
+      this.discoverySplash === guild.discoverySplash &&
       this.region === guild.region &&
       this.name === guild.name &&
       this.memberCount === guild.memberCount &&
@@ -1311,6 +1542,7 @@ class Guild extends Base {
     });
     json.iconURL = this.iconURL();
     json.splashURL = this.splashURL();
+    json.discoverySplashURL = this.discoverySplashURL();
     json.bannerURL = this.bannerURL();
     return json;
   }
@@ -1333,9 +1565,24 @@ class Guild extends Base {
   _sortedChannels(channel) {
     const category = channel.type === ChannelTypes.CATEGORY;
     return Util.discordSort(
-      this.channels.cache.filter(c => c.type === channel.type && (category || c.parent === channel.parent)),
+      this.channels.cache.filter(
+        c =>
+          (['text', 'news', 'store'].includes(channel.type)
+            ? ['text', 'news', 'store'].includes(c.type)
+            : c.type === channel.type) &&
+          (category || c.parent === channel.parent),
+      ),
     );
   }
 }
 
+Guild.prototype.setEmbed = deprecate(Guild.prototype.setEmbed, 'Guild#setEmbed: Use setWidget instead');
+
+Guild.prototype.fetchEmbed = deprecate(Guild.prototype.fetchEmbed, 'Guild#fetchEmbed: Use fetchWidget instead');
+
+Guild.prototype.fetchVanityCode = deprecate(
+  Guild.prototype.fetchVanityCode,
+  'Guild#fetchVanityCode: Use fetchVanityData() instead',
+);
+
 module.exports = Guild;

src/structures/GuildAuditLogs.js

@@ -24,7 +24,7 @@ const Util = require('../util/Util');
 /**
  * Key mirror of all available audit log targets.
  * @name GuildAuditLogs.Targets
- * @type {AuditLogTargetType}
+ * @type {Object<string, string>}
  */
 const Targets = {
   ALL: 'ALL',
@@ -84,7 +84,7 @@ const Targets = {
 /**
  * All available actions keyed under their names to their numeric values.
  * @name GuildAuditLogs.Actions
- * @type {AuditLogAction}
+ * @type {Object<string, number>}
  */
 const Actions = {
   ALL: null,

src/structures/GuildChannel.js

@@ -17,6 +17,7 @@ const Util = require('../util/Util');
  * - {@link NewsChannel}
  * - {@link StoreChannel}
  * @extends {Channel}
+ * @abstract
  */
 class GuildChannel extends Channel {
   /**
@@ -52,7 +53,7 @@ class GuildChannel extends Channel {
      * The ID of the category parent of this channel
      * @type {?Snowflake}
      */
-    this.parentID = data.parent_id;
+    this.parentID = data.parent_id || null;
 
     /**
      * A map of permission overwrites in this channel for roles and users
@@ -227,7 +228,7 @@ class GuildChannel extends Channel {
    */
   updateOverwrite(userOrRole, options, reason) {
     userOrRole = this.guild.roles.resolve(userOrRole) || this.client.users.resolve(userOrRole);
-    if (!userOrRole) return Promise.reject(new TypeError('INVALID_TYPE', 'parameter', 'User nor a Role', true));
+    if (!userOrRole) return Promise.reject(new TypeError('INVALID_TYPE', 'parameter', 'User nor a Role'));
 
     const existing = this.permissionOverwrites.get(userOrRole.id);
     if (existing) return existing.update(options, reason).then(() => this);
@@ -250,7 +251,7 @@ class GuildChannel extends Channel {
    */
   createOverwrite(userOrRole, options, reason) {
     userOrRole = this.guild.roles.resolve(userOrRole) || this.client.users.resolve(userOrRole);
-    if (!userOrRole) return Promise.reject(new TypeError('INVALID_TYPE', 'parameter', 'User nor a Role', true));
+    if (!userOrRole) return Promise.reject(new TypeError('INVALID_TYPE', 'parameter', 'User nor a Role'));
 
     const type = userOrRole instanceof Role ? 'role' : 'member';
     const { allow, deny } = PermissionOverwrites.resolveOverwriteOptions(options);
@@ -298,7 +299,7 @@ class GuildChannel extends Channel {
    * @property {boolean} [nsfw] Whether the channel is NSFW
    * @property {number} [bitrate] The bitrate of the voice channel
    * @property {number} [userLimit] The user limit of the voice channel
-   * @property {Snowflake} [parentID] The parent ID of the channel
+   * @property {?Snowflake} [parentID] The parent ID of the channel
    * @property {boolean} [lockPermissions]
    * Lock the permissions of the channel to what the parent's permissions are
    * @property {OverwriteResolvable[]|Collection<Snowflake, OverwriteResolvable>} [permissionOverwrites]
@@ -334,8 +335,22 @@ class GuildChannel extends Channel {
       });
     }
 
-    const permission_overwrites =
-      data.permissionOverwrites && data.permissionOverwrites.map(o => PermissionOverwrites.resolve(o, this.guild));
+    let permission_overwrites;
+
+    if (data.permissionOverwrites) {
+      permission_overwrites = data.permissionOverwrites.map(o => PermissionOverwrites.resolve(o, this.guild));
+    }
+
+    if (data.lockPermissions) {
+      if (data.parentID) {
+        const newParent = this.guild.channels.resolve(data.parentID);
+        if (newParent && newParent.type === 'category') {
+          permission_overwrites = newParent.permissionOverwrites.map(o => PermissionOverwrites.resolve(o, this.guild));
+        }
+      } else if (this.parent) {
+        permission_overwrites = this.parent.permissionOverwrites.map(o => PermissionOverwrites.resolve(o, this.guild));
+      }
+    }
 
     const newData = await this.client.api.channels(this.id).patch({
       data: {
@@ -398,7 +413,7 @@ class GuildChannel extends Channel {
 
   /**
    * Sets a new topic for the guild channel.
-   * @param {string} topic The new topic for the guild channel
+   * @param {?string} topic The new topic for the guild channel
    * @param {string} [reason] Reason for changing the guild channel's topic
    * @returns {Promise<GuildChannel>}
    * @example
@@ -499,7 +514,7 @@ class GuildChannel extends Channel {
    * @param {boolean} [options.nsfw=this.nsfw] Whether the new channel is nsfw (only text)
    * @param {number} [options.bitrate=this.bitrate] Bitrate of the new channel in bits (only voice)
    * @param {number} [options.userLimit=this.userLimit] Maximum amount of users allowed in the new channel (only voice)
-   * @param {number} [options.rateLimitPerUser=ThisType.rateLimitPerUser] Ratelimit per user for the new channel (only text)
+   * @param {number} [options.rateLimitPerUser=this.rateLimitPerUser] Ratelimit per user for the new channel (only text)
    * @param {ChannelResolvable} [options.parent=this.parent] Parent of the new channel
    * @param {string} [options.reason] Reason for cloning this channel
    * @returns {Promise<GuildChannel>}

src/structures/GuildEmoji.js

@@ -11,13 +11,19 @@ const Permissions = require('../util/Permissions');
  */
 class GuildEmoji extends BaseGuildEmoji {
   /**
-   * @name GuildEmoji
-   * @kind constructor
-   * @memberof GuildEmoji
    * @param {Client} client The instantiating client
    * @param {Object} data The data for the guild emoji
    * @param {Guild} guild The guild the guild emoji is part of
    */
+  constructor(client, data, guild) {
+    super(client, data, guild);
+
+    /**
+     * The user who created this emoji
+     * @type {?User}
+     */
+    this.author = null;
+  }
 
   /**
    * The guild this emoji is part of
@@ -31,6 +37,11 @@ class GuildEmoji extends BaseGuildEmoji {
     return clone;
   }
 
+  _patch(data) {
+    super._patch(data);
+    if (typeof data.user !== 'undefined') this.author = this.client.users.add(data.user);
+  }
+
   /**
    * Whether the emoji is deletable by the client user
    * @type {boolean}
@@ -54,20 +65,18 @@ class GuildEmoji extends BaseGuildEmoji {
    * Fetches the author for this emoji
    * @returns {Promise<User>}
    */
-  fetchAuthor() {
+  async fetchAuthor() {
     if (this.managed) {
-      return Promise.reject(new Error('EMOJI_MANAGED'));
+      throw new Error('EMOJI_MANAGED');
     } else {
-      if (!this.guild.me) return Promise.reject(new Error('GUILD_UNCACHED_ME'));
+      if (!this.guild.me) throw new Error('GUILD_UNCACHED_ME');
       if (!this.guild.me.permissions.has(Permissions.FLAGS.MANAGE_EMOJIS)) {
-        return Promise.reject(new Error('MISSING_MANAGE_EMOJIS_PERMISSION', this.guild));
+        throw new Error('MISSING_MANAGE_EMOJIS_PERMISSION', this.guild);
       }
     }
-    return this.client.api
-      .guilds(this.guild.id)
-      .emojis(this.id)
-      .get()
-      .then(emoji => this.client.users.add(emoji.user));
+    const data = await this.client.api.guilds(this.guild.id).emojis(this.id).get();
+    this._patch(data);
+    return this.author;
   }
 
   /**

src/structures/GuildMember.js

@@ -1,13 +1,12 @@
 'use strict';
 
 const Base = require('./Base');
-const { Presence } = require('./Presence');
 const Role = require('./Role');
-const VoiceState = require('./VoiceState');
 const TextBasedChannel = require('./interfaces/TextBasedChannel');
 const { Error } = require('../errors');
 const GuildMemberRoleManager = require('../managers/GuildMemberRoleManager');
 const Permissions = require('../util/Permissions');
+let Structures;
 
 /**
  * Represents a member of a guild on Discord.
@@ -29,13 +28,6 @@ class GuildMember extends Base {
      */
     this.guild = guild;
 
-    /**
-     * The user that this guild member instance represents
-     * @type {User}
-     * @name GuildMember#user
-     */
-    if (data.user) this.user = client.users.add(data.user, true);
-
     /**
      * The timestamp the member joined the guild at
      * @type {?number}
@@ -66,23 +58,29 @@ class GuildMember extends Base {
      */
     this.deleted = false;
 
+    /**
+     * The nickname of this member, if they have one
+     * @type {?string}
+     */
+    this.nickname = null;
+
     this._roles = [];
     if (data) this._patch(data);
   }
 
   _patch(data) {
-    /**
-     * The nickname of this member, if they have one
-     * @type {?string}
-     * @name GuildMember#nickname
-     */
-    if (typeof data.nick !== 'undefined') this.nickname = data.nick;
+    if ('user' in data) {
+      /**
+       * The user that this guild member instance represents
+       * @type {User}
+       */
+      this.user = this.client.users.add(data.user, true);
+    }
 
-    if (data.joined_at) this.joinedTimestamp = new Date(data.joined_at).getTime();
-    if (data.premium_since) this.premiumSinceTimestamp = new Date(data.premium_since).getTime();
-
-    if (data.user) this.user = this.guild.client.users.add(data.user);
-    if (data.roles) this._roles = data.roles;
+    if ('nick' in data) this.nickname = data.nick;
+    if ('joined_at' in data) this.joinedTimestamp = new Date(data.joined_at).getTime();
+    if ('premium_since' in data) this.premiumSinceTimestamp = new Date(data.premium_since).getTime();
+    if ('roles' in data) this._roles = data.roles;
   }
 
   _clone() {
@@ -125,6 +123,8 @@ class GuildMember extends Base {
    * @readonly
    */
   get voice() {
+    if (!Structures) Structures = require('../util/Structures');
+    const VoiceState = Structures.get('VoiceState');
     return this.guild.voiceStates.cache.get(this.id) || new VoiceState(this.guild, { user_id: this.id });
   }
 
@@ -152,6 +152,8 @@ class GuildMember extends Base {
    * @readonly
    */
   get presence() {
+    if (!Structures) Structures = require('../util/Structures');
+    const Presence = Structures.get('Presence');
     return (
       this.guild.presences.cache.get(this.id) ||
       new Presence(this.client, {
@@ -194,7 +196,7 @@ class GuildMember extends Base {
 
   /**
    * The nickname of this member, or their username if they don't have one
-   * @type {string}
+   * @type {?string}
    * @readonly
    */
   get displayName() {
@@ -265,7 +267,8 @@ class GuildMember extends Base {
    */
   hasPermission(permission, { checkAdmin = true, checkOwner = true } = {}) {
     if (checkOwner && this.user.id === this.guild.ownerID) return true;
-    return this.roles.cache.some(r => r.permissions.has(permission, checkAdmin));
+    const permissions = new Permissions(this.roles.cache.map(role => role.permissions));
+    return permissions.has(permission, checkAdmin);
   }
 
   /**
@@ -356,7 +359,7 @@ class GuildMember extends Base {
   /**
    * Bans this guild member.
    * @param {Object} [options] Options for the ban
-   * @param {number} [options.days=0] Number of days of messages to delete
+   * @param {number} [options.days=0] Number of days of messages to delete, must be between 0 and 7
    * @param {string} [options.reason] Reason for banning
    * @returns {Promise<GuildMember>}
    * @example
@@ -371,10 +374,11 @@ class GuildMember extends Base {
 
   /**
    * Fetches this GuildMember.
+   * @param {boolean} [force=false] Whether to skip the cache check and request the API
    * @returns {Promise<GuildMember>}
    */
-  fetch() {
-    return this.guild.members.fetch(this.id, true);
+  fetch(force = false) {
+    return this.guild.members.fetch({ user: this.id, cache: true, force });
   }
 
   /**

src/structures/GuildPreview.js

@@ -5,7 +5,7 @@ const GuildPreviewEmoji = require('./GuildPreviewEmoji');
 const Collection = require('../util/Collection');
 
 /**
- * Represents the data about the guild any bot can preview, connected to the specified public guild.
+ * Represents the data about the guild any bot can preview, connected to the specified guild.
  * @extends {Base}
  */
 class GuildPreview extends Base {
@@ -18,37 +18,37 @@ class GuildPreview extends Base {
   }
 
   /**
-   * Builds the public guild with the provided data.
-   * @param {*} data The raw data of the public guild
+   * Builds the guild with the provided data.
+   * @param {*} data The raw data of the guild
    * @private
    */
   _patch(data) {
     /**
-     * The id of this public guild
+     * The id of this guild
      * @type {string}
      */
     this.id = data.id;
 
     /**
-     * The name of this public guild
+     * The name of this guild
      * @type {string}
      */
     this.name = data.name;
 
     /**
-     * The icon of this public guild
+     * The icon of this guild
      * @type {?string}
      */
     this.icon = data.icon;
 
     /**
-     * The splash icon of this public guild
+     * The splash icon of this guild
      * @type {?string}
      */
     this.splash = data.splash;
 
     /**
-     * The discovery splash icon of this public guild
+     * The discovery splash icon of this guild
      * @type {?string}
      */
     this.discoverySplash = data.discovery_splash;
@@ -60,26 +60,26 @@ class GuildPreview extends Base {
     this.features = data.features;
 
     /**
-     * The approximate count of members in this public guild
+     * The approximate count of members in this guild
      * @type {number}
      */
     this.approximateMemberCount = data.approximate_member_count;
 
     /**
-     * The approximate count of online members in this public guild
+     * The approximate count of online members in this guild
      * @type {number}
      */
     this.approximatePresenceCount = data.approximate_presence_count;
 
     /**
-     * The description for this public guild
+     * The description for this guild
      * @type {?string}
      */
-    this.description = data.description;
+    this.description = data.description || null;
 
     if (!this.emojis) {
       /**
-       * Collection of emojis belonging to this public guild
+       * Collection of emojis belonging to this guild
        * @type {Collection<Snowflake, GuildPreviewEmoji>}
        */
       this.emojis = new Collection();
@@ -92,7 +92,7 @@ class GuildPreview extends Base {
   }
 
   /**
-   * The URL to this public guild's splash.
+   * The URL to this guild's splash.
    * @param {ImageURLOptions} [options={}] Options for the Image URL
    * @returns {?string}
    */
@@ -102,7 +102,7 @@ class GuildPreview extends Base {
   }
 
   /**
-   * The URL to this public guild's discovery splash.
+   * The URL to this guild's discovery splash.
    * @param {ImageURLOptions} [options={}] Options for the Image URL
    * @returns {?string}
    */
@@ -112,7 +112,7 @@ class GuildPreview extends Base {
   }
 
   /**
-   * The URL to this public guild's icon.
+   * The URL to this guild's icon.
    * @param {ImageURLOptions} [options={}] Options for the Image URL
    * @returns {?string}
    */
@@ -122,7 +122,7 @@ class GuildPreview extends Base {
   }
 
   /**
-   * Fetches this public guild.
+   * Fetches this guild.
    * @returns {Promise<GuildPreview>}
    */
   fetch() {

src/structures/GuildTemplate.js

@@ -0,0 +1,225 @@
+'use strict';
+
+const Base = require('./Base');
+const { Events } = require('../util/Constants');
+const DataResolver = require('../util/DataResolver');
+
+/**
+ * Represents the template for a guild.
+ * @extends {Base}
+ */
+class GuildTemplate extends Base {
+  /**
+   * @param {Client} client The instantiating client
+   * @param {Object} data The raw data for the template
+   */
+  constructor(client, data) {
+    super(client);
+    this._patch(data);
+  }
+
+  /**
+   * Builds or updates the template with the provided data.
+   * @param {Object} data The raw data for the template
+   * @returns {GuildTemplate}
+   * @private
+   */
+  _patch(data) {
+    /**
+     * The unique code of this template
+     * @type {string}
+     */
+    this.code = data.code;
+
+    /**
+     * The name of this template
+     * @type {string}
+     */
+    this.name = data.name;
+
+    /**
+     * The description of this template
+     * @type {?string}
+     */
+    this.description = data.description;
+
+    /**
+     * The amount of times this template has been used
+     * @type {number}
+     */
+    this.usageCount = data.usage_count;
+
+    /**
+     * The ID of the user that created this template
+     * @type {Snowflake}
+     */
+    this.creatorID = data.creator_id;
+
+    /**
+     * The user that created this template
+     * @type {User}
+     */
+    this.creator = this.client.users.add(data.creator);
+
+    /**
+     * The time of when this template was created at
+     * @type {Date}
+     */
+    this.createdAt = new Date(data.created_at);
+
+    /**
+     * The time of when this template was last synced to the guild
+     * @type {Date}
+     */
+    this.updatedAt = new Date(data.updated_at);
+
+    /**
+     * The ID of the guild that this template belongs to
+     * @type {Snowflake}
+     */
+    this.guildID = data.source_guild_id;
+
+    /**
+     * The data of the guild that this template would create
+     * @type {Object}
+     * @see {@link https://discord.com/developers/docs/resources/guild#guild-resource}
+     */
+    this.serializedGuild = data.serialized_source_guild;
+
+    /**
+     * Whether this template has unsynced changes
+     * @type {?boolean}
+     */
+    this.unSynced = 'is_dirty' in data ? Boolean(data.is_dirty) : null;
+
+    return this;
+  }
+
+  /**
+   * Creates a guild based from this template.
+   * <warn>This is only available to bots in fewer than 10 guilds.</warn>
+   * @param {string} name The name of the guild
+   * @param {BufferResolvable|Base64Resolvable} [icon] The icon for the guild
+   * @returns {Promise<Guild>}
+   */
+  async createGuild(name, icon) {
+    const { client } = this;
+    const data = await client.api.guilds.templates(this.code).post({
+      data: {
+        name,
+        icon: await DataResolver.resolveImage(icon),
+      },
+    });
+    // eslint-disable-next-line consistent-return
+    return new Promise(resolve => {
+      const createdGuild = client.guilds.cache.get(data.id);
+      if (createdGuild) return resolve(createdGuild);
+
+      const resolveGuild = guild => {
+        client.off(Events.GUILD_CREATE, handleGuild);
+        client.decrementMaxListeners();
+        resolve(guild);
+      };
+
+      const handleGuild = guild => {
+        if (guild.id === data.id) {
+          client.clearTimeout(timeout);
+          resolveGuild(guild);
+        }
+      };
+
+      client.incrementMaxListeners();
+      client.on(Events.GUILD_CREATE, handleGuild);
+
+      const timeout = client.setTimeout(() => resolveGuild(client.guilds.add(data)), 10000);
+    });
+  }
+
+  /**
+   * Updates the metadata on this template.
+   * @param {Object} options Options for the template
+   * @param {string} [options.name] The name of this template
+   * @param {string} [options.description] The description of this template
+   * @returns {Promise<GuildTemplate>}
+   */
+  edit({ name, description } = {}) {
+    return this.client.api
+      .guilds(this.guildID)
+      .templates(this.code)
+      .patch({ data: { name, description } })
+      .then(data => this._patch(data));
+  }
+
+  /**
+   * Deletes this template.
+   * @returns {Promise<GuildTemplate>}
+   */
+  delete() {
+    return this.client.api
+      .guilds(this.guildID)
+      .templates(this.code)
+      .delete()
+      .then(() => this);
+  }
+
+  /**
+   * Syncs this template to the current state of the guild.
+   * @returns {Promise<GuildTemplate>}
+   */
+  sync() {
+    return this.client.api
+      .guilds(this.guildID)
+      .templates(this.code)
+      .put()
+      .then(data => this._patch(data));
+  }
+
+  /**
+   * The timestamp of when this template was created at
+   * @type {number}
+   * @readonly
+   */
+  get createdTimestamp() {
+    return this.createdAt.getTime();
+  }
+
+  /**
+   * The timestamp of when this template was last synced to the guild
+   * @type {number}
+   * @readonly
+   */
+  get updatedTimestamp() {
+    return this.updatedAt.getTime();
+  }
+
+  /**
+   * The guild that this template belongs to
+   * @type {?Guild}
+   * @readonly
+   */
+  get guild() {
+    return this.client.guilds.cache.get(this.guildID) || null;
+  }
+
+  /**
+   * The URL of this template
+   * @type {string}
+   * @readonly
+   */
+  get url() {
+    return `${this.client.options.http.template}/${this.code}`;
+  }
+
+  /**
+   * When concatenated with a string, this automatically returns the templates's code instead of the template object.
+   * @returns {string}
+   * @example
+   * // Logs: Template: FKvmczH2HyUf
+   * console.log(`Template: ${guildTemplate}!`);
+   */
+  toString() {
+    return this.code;
+  }
+}
+
+module.exports = GuildTemplate;

src/structures/Integration.js

@@ -1,6 +1,7 @@
 'use strict';
 
 const Base = require('./Base');
+const IntegrationApplication = require('./IntegrationApplication');
 
 /**
  * The information account for an integration
@@ -58,11 +59,15 @@ class Integration extends Base {
      */
     this.role = this.guild.roles.cache.get(data.role_id);
 
-    /**
-     * The user for this integration
-     * @type {User}
-     */
-    this.user = this.client.users.add(data.user);
+    if (data.user) {
+      /**
+       * The user for this integration
+       * @type {?User}
+       */
+      this.user = this.client.users.add(data.user);
+    } else {
+      this.user = null;
+    }
 
     /**
      * The account integration information
@@ -90,6 +95,20 @@ class Integration extends Base {
      * @type {number}
      */
     this.expireGracePeriod = data.expire_grace_period;
+
+    if ('application' in data) {
+      if (this.application) {
+        this.application._patch(data.application);
+      } else {
+        /**
+         * The application for this integration
+         * @type {?IntegrationApplication}
+         */
+        this.application = new IntegrationApplication(this.client, data.application);
+      }
+    } else if (!this.application) {
+      this.application = null;
+    }
   }
 
   /**

src/structures/IntegrationApplication.js

@@ -0,0 +1,25 @@
+'use strict';
+
+const Application = require('./interfaces/Application');
+
+/**
+ * Represents an Integration's OAuth2 Application.
+ * @extends {Application}
+ */
+class IntegrationApplication extends Application {
+  _patch(data) {
+    super._patch(data);
+
+    if (typeof data.bot !== 'undefined') {
+      /**
+       * The bot {@link User user} for this application
+       * @type {?User}
+       */
+      this.bot = this.client.users.add(data.bot);
+    } else if (!this.bot) {
+      this.bot = null;
+    }
+  }
+}
+
+module.exports = IntegrationApplication;

src/structures/Interaction.js

@@ -0,0 +1,133 @@
+'use strict';
+
+const APIMessage = require('./APIMessage');
+const Base = require('./Base');
+const Snowflake = require('../util/Snowflake');
+
+/**
+ * Represents an interaction, see {@link InteractionClient}.
+ * @extends {Base}
+ */
+class Interaction extends Base {
+  constructor(client, data, syncHandle) {
+    super(client);
+    this.syncHandle = syncHandle;
+    this._patch(data);
+  }
+
+  _patch(data) {
+    /**
+     * The ID of this interaction.
+     * @type {Snowflake}
+     * @readonly
+     */
+    this.id = data.id;
+
+    /**
+     * The token of this interaction.
+     * @type {string}
+     * @readonly
+     */
+    this.token = data.token;
+
+    /**
+     * The ID of the invoked command.
+     * @type {Snowflake}
+     * @readonly
+     */
+    this.commandID = data.data.id;
+
+    /**
+     * The name of the invoked command.
+     * @type {string}
+     * @readonly
+     */
+    this.commandName = data.data.name;
+
+    /**
+     * The options passed to the command.
+     * @type {Object}
+     * @readonly
+     */
+    this.options = data.data.options;
+
+    /**
+     * The channel this interaction was sent in.
+     * @type {?Channel}
+     * @readonly
+     */
+    this.channel = this.client.channels?.cache.get(data.channel_id) || null;
+
+    /**
+     * The guild this interaction was sent in, if any.
+     * @type {?Guild}
+     * @readonly
+     */
+    this.guild = data.guild_id ? this.client.guilds?.cache.get(data.guild_id) : null;
+
+    /**
+     * If this interaction was sent in a guild, the member which sent it.
+     * @type {?Member}
+     * @readonly
+     */
+    this.member = data.member ? this.guild?.members.add(data.member, false) : null;
+  }
+
+  /**
+   * The timestamp the interaction was created at.
+   * @type {number}
+   * @readonly
+   */
+  get createdTimestamp() {
+    return Snowflake.deconstruct(this.id).timestamp;
+  }
+
+  /**
+   * The time the interaction was created at.
+   * @type {Date}
+   * @readonly
+   */
+  get createdAt() {
+    return new Date(this.createdTimestamp);
+  }
+
+  /**
+   * Acknowledge this interaction without content.
+   */
+  async acknowledge() {
+    await this.syncHandle.acknowledge();
+  }
+
+  /**
+   * Reply to this interaction.
+   * @param {(StringResolvable | APIMessage)?} content The content for the message.
+   * @param {(MessageOptions | MessageAdditions)?} options The options to provide.
+   */
+  async reply(content, options) {
+    let apiMessage;
+
+    if (content instanceof APIMessage) {
+      apiMessage = content.resolveData();
+    } else {
+      apiMessage = APIMessage.create(this, content, options).resolveData();
+      if (Array.isArray(apiMessage.data.content)) {
+        throw new Error('Message is too long');
+      }
+    }
+
+    const resolved = await apiMessage.resolveFiles();
+
+    if (!this.syncHandle.reply(resolved)) {
+      const clientID =
+        this.client.interactionClient.clientID || (await this.client.api.oauth2.applications('@me').get()).id;
+
+      await this.client.api.webhooks(clientID, this.token).post({
+        auth: false,
+        data: resolved.data,
+        files: resolved.files,
+      });
+    }
+  }
+}
+
+module.exports = Interaction;

src/structures/Message.js

@@ -13,6 +13,7 @@ const Collection = require('../util/Collection');
 const { MessageTypes } = require('../util/Constants');
 const MessageFlags = require('../util/MessageFlags');
 const Permissions = require('../util/Permissions');
+const SnowflakeUtil = require('../util/Snowflake');
 const Util = require('../util/Util');
 
 /**
@@ -23,14 +24,14 @@ class Message extends Base {
   /**
    * @param {Client} client The instantiating client
    * @param {Object} data The data for the message
-   * @param {TextChannel|DMChannel} channel The channel the message was sent in
+   * @param {TextChannel|DMChannel|NewsChannel} channel The channel the message was sent in
    */
   constructor(client, data, channel) {
     super(client);
 
     /**
      * The channel that the message was sent in
-     * @type {TextChannel|DMChannel}
+     * @type {TextChannel|DMChannel|NewsChannel}
      */
     this.channel = channel;
 
@@ -50,35 +51,62 @@ class Message extends Base {
      */
     this.id = data.id;
 
-    /**
-     * The type of the message
-     * @type {MessageType}
-     */
-    this.type = MessageTypes[data.type];
+    if ('type' in data) {
+      /**
+       * The type of the message
+       * @type {?MessageType}
+       */
+      this.type = MessageTypes[data.type];
 
-    /**
-     * The content of the message
-     * @type {string}
-     */
-    this.content = data.content;
+      /**
+       * Whether or not this message was sent by Discord, not actually a user (e.g. pin notifications)
+       * @type {?boolean}
+       */
+      this.system = data.type !== 0;
+    } else if (typeof this.type !== 'string') {
+      this.system = null;
+      this.type = null;
+    }
 
-    /**
-     * The author of the message
-     * @type {?User}
-     */
-    this.author = data.author ? this.client.users.add(data.author, !data.webhook_id) : null;
+    if ('content' in data) {
+      /**
+       * The content of the message
+       * @type {?string}
+       */
+      this.content = data.content;
+    } else if (typeof this.content !== 'string') {
+      this.content = null;
+    }
 
-    /**
-     * Whether or not this message is pinned
-     * @type {boolean}
-     */
-    this.pinned = data.pinned;
+    if ('author' in data) {
+      /**
+       * The author of the message
+       * @type {?User}
+       */
+      this.author = this.client.users.add(data.author, !data.webhook_id);
+    } else if (!this.author) {
+      this.author = null;
+    }
 
-    /**
-     * Whether or not the message was Text-To-Speech
-     * @type {boolean}
-     */
-    this.tts = data.tts;
+    if ('pinned' in data) {
+      /**
+       * Whether or not this message is pinned
+       * @type {?boolean}
+       */
+      this.pinned = Boolean(data.pinned);
+    } else if (typeof this.pinned !== 'boolean') {
+      this.pinned = null;
+    }
+
+    if ('tts' in data) {
+      /**
+       * Whether or not the message was Text-To-Speech
+       * @type {?boolean}
+       */
+      this.tts = data.tts;
+    } else if (typeof this.tts !== 'boolean') {
+      this.tts = null;
+    }
 
     /**
      * A random number or string used for checking message delivery
@@ -86,13 +114,7 @@ class Message extends Base {
      * lost if re-fetched</warn>
      * @type {?string}
      */
-    this.nonce = data.nonce;
-
-    /**
-     * Whether or not this message was sent by Discord, not actually a user (e.g. pin notifications)
-     * @type {boolean}
-     */
-    this.system = data.type !== 0;
+    this.nonce = 'nonce' in data ? data.nonce : null;
 
     /**
      * A list of embeds in the message - e.g. YouTube Player
@@ -115,13 +137,13 @@ class Message extends Base {
      * The timestamp the message was sent at
      * @type {number}
      */
-    this.createdTimestamp = new Date(data.timestamp).getTime();
+    this.createdTimestamp = SnowflakeUtil.deconstruct(this.id).timestamp;
 
     /**
      * The timestamp the message was last edited at (if applicable)
      * @type {?number}
      */
-    this.editedTimestamp = data.edited_timestamp ? new Date(data.edited_timestamp).getTime() : null;
+    this.editedTimestamp = 'edited_timestamp' in data ? new Date(data.edited_timestamp).getTime() : null;
 
     /**
      * A manager of the reactions belonging to this message
@@ -183,11 +205,11 @@ class Message extends Base {
     this.flags = new MessageFlags(data.flags).freeze();
 
     /**
-     * Reference data sent in a crossposted message.
+     * Reference data sent in a crossposted message or inline reply.
      * @typedef {Object} MessageReference
-     * @property {string} channelID ID of the channel the message was crossposted from
-     * @property {?string} guildID ID of the guild the message was crossposted from
-     * @property {?string} messageID ID of the message that was crossposted
+     * @property {string} channelID ID of the channel the message was referenced
+     * @property {?string} guildID ID of the guild the message was referenced
+     * @property {?string} messageID ID of the message that was referenced
      */
 
     /**
@@ -201,6 +223,10 @@ class Message extends Base {
           messageID: data.message_reference.message_id,
         }
       : null;
+
+    if (data.referenced_message) {
+      this.channel.messages.add(data.referenced_message);
+    }
   }
 
   /**
@@ -213,13 +239,18 @@ class Message extends Base {
   }
 
   /**
-   * Updates the message.
+   * Updates the message and returns the old message.
    * @param {Object} data Raw Discord message update data
+   * @returns {Message}
    * @private
    */
   patch(data) {
     const clone = this._clone();
-    this._edits.unshift(clone);
+    const { messageEditHistoryMaxSize } = this.client.options;
+    if (messageEditHistoryMaxSize !== 0) {
+      const editsLimit = messageEditHistoryMaxSize === -1 ? Infinity : messageEditHistoryMaxSize;
+      if (this._edits.unshift(clone) > editsLimit) this._edits.pop();
+    }
 
     if ('edited_timestamp' in data) this.editedTimestamp = new Date(data.edited_timestamp).getTime();
     if ('content' in data) this.content = data.content;
@@ -240,12 +271,14 @@ class Message extends Base {
     this.mentions = new Mentions(
       this,
       'mentions' in data ? data.mentions : this.mentions.users,
-      'mentions_roles' in data ? data.mentions_roles : this.mentions.roles,
+      'mention_roles' in data ? data.mention_roles : this.mentions.roles,
       'mention_everyone' in data ? data.mention_everyone : this.mentions.everyone,
       'mention_channels' in data ? data.mention_channels : this.mentions.crosspostedChannels,
     );
 
     this.flags = new MessageFlags('flags' in data ? data.flags : 0).freeze();
+
+    return clone;
   }
 
   /**
@@ -255,7 +288,7 @@ class Message extends Base {
    * @readonly
    */
   get member() {
-    return this.guild ? this.guild.member(this.author) || null : null;
+    return this.guild ? this.guild.members.resolve(this.author) || null : null;
   }
 
   /**
@@ -291,7 +324,7 @@ class Message extends Base {
    * @readonly
    */
   get url() {
-    return `https://discordapp.com/channels/${this.guild ? this.guild.id : '@me'}/${this.channel.id}/${this.id}`;
+    return `https://discord.com/channels/${this.guild ? this.guild.id : '@me'}/${this.channel.id}/${this.id}`;
   }
 
   /**
@@ -396,12 +429,42 @@ class Message extends Base {
     );
   }
 
+  /**
+   * The Message this crosspost/reply/pin-add references, if cached
+   * @type {?Message}
+   * @readonly
+   */
+  get referencedMessage() {
+    if (!this.reference) return null;
+    const referenceChannel = this.client.channels.resolve(this.reference.channelID);
+    if (!referenceChannel) return null;
+    return referenceChannel.messages.resolve(this.reference.messageID);
+  }
+
+  /**
+   * Whether the message is crosspostable by the client user
+   * @type {boolean}
+   * @readonly
+   */
+  get crosspostable() {
+    return (
+      this.channel.type === 'news' &&
+      !this.flags.has(MessageFlags.FLAGS.CROSSPOSTED) &&
+      this.type === 'DEFAULT' &&
+      this.channel.viewable &&
+      this.channel.permissionsFor(this.client.user).has(Permissions.FLAGS.SEND_MESSAGES) &&
+      (this.author.id === this.client.user.id ||
+        this.channel.permissionsFor(this.client.user).has(Permissions.FLAGS.MANAGE_MESSAGES))
+    );
+  }
+
   /**
    * Options that can be passed into editMessage.
    * @typedef {Object} MessageEditOptions
    * @property {string} [content] Content to be edited
-   * @property {Object} [embed] An embed to be added/edited
+   * @property {MessageEmbed|Object} [embed] An embed to be added/edited
    * @property {string|boolean} [code] Language for optional codeblock formatting to apply
+   * @property {MessageMentionOptions} [allowedMentions] Which mentions should be parsed from the message content
    */
 
   /**
@@ -426,26 +489,56 @@ class Message extends Base {
   }
 
   /**
-   * Pins this message to the channel's pinned messages.
+   * Publishes a message in an announcement channel to all channels following it.
    * @returns {Promise<Message>}
+   * @example
+   * // Crosspost a message
+   * if (message.channel.type === 'news') {
+   *   message.crosspost()
+   *     .then(() => console.log('Crossposted message'))
+   *     .catch(console.error);
+   * }
    */
-  pin() {
+  async crosspost() {
+    await this.client.api.channels(this.channel.id).messages(this.id).crosspost.post();
+    return this;
+  }
+
+  /**
+   * Pins this message to the channel's pinned messages.
+   * @param {Object} [options] Options for pinning
+   * @param {string} [options.reason] Reason for pinning
+   * @returns {Promise<Message>}
+   * @example
+   * // Pin a message with a reason
+   * message.pin({ reason: 'important' })
+   *   .then(console.log)
+   *   .catch(console.error)
+   */
+  pin(options) {
     return this.client.api
       .channels(this.channel.id)
       .pins(this.id)
-      .put()
+      .put(options)
       .then(() => this);
   }
 
   /**
    * Unpins this message from the channel's pinned messages.
+   * @param {Object} [options] Options for unpinning
+   * @param {string} [options.reason] Reason for unpinning
    * @returns {Promise<Message>}
+   * @example
+   * // Unpin a message with a reason
+   * message.unpin({ reason: 'no longer relevant' })
+   *   .then(console.log)
+   *   .catch(console.error)
    */
-  unpin() {
+  unpin(options) {
     return this.client.api
       .channels(this.channel.id)
       .pins(this.id)
-      .delete()
+      .delete(options)
       .then(() => this);
   }
 
@@ -492,12 +585,12 @@ class Message extends Base {
    * @returns {Promise<Message>}
    * @example
    * // Delete a message
-   * message.delete()
-   *   .then(msg => console.log(`Deleted message from ${msg.author.username}`))
+   * message.delete({ timeout: 5000 })
+   *   .then(msg => console.log(`Deleted message from ${msg.author.username} after 5 seconds`))
    *   .catch(console.error);
    */
   delete(options = {}) {
-    if (typeof options !== 'object') throw new TypeError('INVALID_TYPE', 'options', 'object', true);
+    if (typeof options !== 'object') return Promise.reject(new TypeError('INVALID_TYPE', 'options', 'object', true));
     const { timeout = 0, reason } = options;
     if (timeout <= 0) {
       return this.channel.messages.delete(this.id, reason).then(() => this);
@@ -511,30 +604,29 @@ class Message extends Base {
   }
 
   /**
-   * Replies to the message.
+   * Send an inline reply to this message.
    * @param {StringResolvable|APIMessage} [content=''] The content for the message
-   * @param {MessageOptions|MessageAdditions} [options={}] The options to provide
+   * @param {MessageOptions|MessageAdditions} [options] The additional options to provide
+   * @param {MessageResolvable} [options.replyTo=this] The message to reply to
    * @returns {Promise<Message|Message[]>}
-   * @example
-   * // Reply to a message
-   * message.reply('Hey, I\'m a reply!')
-   *   .then(() => console.log(`Sent a reply to ${message.author.username}`))
-   *   .catch(console.error);
    */
   reply(content, options) {
     return this.channel.send(
       content instanceof APIMessage
         ? content
-        : APIMessage.transformOptions(content, options, { reply: this.member || this.author }),
+        : APIMessage.transformOptions(content, options, {
+            replyTo: this,
+          }),
     );
   }
 
   /**
    * Fetch this message.
+   * @param {boolean} [force=false] Whether to skip the cache check and request the API
    * @returns {Promise<Message>}
    */
-  fetch() {
-    return this.channel.messages.fetch(this.id, true);
+  fetch(force = false) {
+    return this.channel.messages.fetch(this.id, true, force);
   }
 
   /**

src/structures/MessageCollector.js

@@ -42,7 +42,7 @@ class MessageCollector extends Collector {
     this._handleChannelDeletion = this._handleChannelDeletion.bind(this);
     this._handleGuildDeletion = this._handleGuildDeletion.bind(this);
 
-    if (this.client.getMaxListeners() !== 0) this.client.setMaxListeners(this.client.getMaxListeners() + 1);
+    this.client.incrementMaxListeners();
     this.client.on(Events.MESSAGE_CREATE, this.handleCollect);
     this.client.on(Events.MESSAGE_DELETE, this.handleDispose);
     this.client.on(Events.MESSAGE_BULK_DELETE, bulkDeleteListener);
@@ -55,7 +55,7 @@ class MessageCollector extends Collector {
       this.client.removeListener(Events.MESSAGE_BULK_DELETE, bulkDeleteListener);
       this.client.removeListener(Events.CHANNEL_DELETE, this._handleChannelDeletion);
       this.client.removeListener(Events.GUILD_DELETE, this._handleGuildDeletion);
-      if (this.client.getMaxListeners() !== 0) this.client.setMaxListeners(this.client.getMaxListeners() - 1);
+      this.client.decrementMaxListeners();
     });
   }
 

src/structures/MessageEmbed.js

@@ -7,6 +7,13 @@ const Util = require('../util/Util');
  * Represents an embed in a message (image/video preview, rich embed, etc.)
  */
 class MessageEmbed {
+  /**
+   * @name MessageEmbed
+   * @kind constructor
+   * @memberof MessageEmbed
+   * @param {MessageEmbed|Object} [data={}] MessageEmbed to clone or raw embed data
+   */
+
   constructor(data = {}, skipValidation = false) {
     this.setup(data, skipValidation);
   }
@@ -22,39 +29,40 @@ class MessageEmbed {
      * * `link` - a link embed
      * @type {string}
      */
-    this.type = data.type;
+    this.type = data.type || 'rich';
 
     /**
      * The title of this embed
      * @type {?string}
      */
-    this.title = data.title;
+    this.title = 'title' in data ? data.title : null;
 
     /**
      * The description of this embed
      * @type {?string}
      */
-    this.description = data.description;
+    this.description = 'description' in data ? data.description : null;
 
     /**
      * The URL of this embed
      * @type {?string}
      */
-    this.url = data.url;
+    this.url = 'url' in data ? data.url : null;
 
     /**
      * The color of this embed
      * @type {?number}
      */
-    this.color = Util.resolveColor(data.color);
+    this.color = 'color' in data ? Util.resolveColor(data.color) : null;
 
     /**
      * The timestamp of this embed
      * @type {?number}
      */
-    this.timestamp = data.timestamp ? new Date(data.timestamp).getTime() : null;
+    this.timestamp = 'timestamp' in data ? new Date(data.timestamp).getTime() : null;
 
     /**
+     * Represents a field of a MessageEmbed
      * @typedef {Object} EmbedField
      * @property {string} name The name of this field
      * @property {string} value The value of this field
@@ -71,6 +79,7 @@ class MessageEmbed {
     }
 
     /**
+     * Represents the thumbnail of a MessageEmbed
      * @typedef {Object} MessageEmbedThumbnail
      * @property {string} url URL for this thumbnail
      * @property {string} proxyURL ProxyURL for this thumbnail
@@ -92,6 +101,7 @@ class MessageEmbed {
       : null;
 
     /**
+     * Represents the image of a MessageEmbed
      * @typedef {Object} MessageEmbedImage
      * @property {string} url URL for this image
      * @property {string} proxyURL ProxyURL for this image
@@ -113,6 +123,7 @@ class MessageEmbed {
       : null;
 
     /**
+     * Represents the video of a MessageEmbed
      * @typedef {Object} MessageEmbedVideo
      * @property {string} url URL of this video
      * @property {string} proxyURL ProxyURL for this video
@@ -135,6 +146,7 @@ class MessageEmbed {
       : null;
 
     /**
+     * Represents the author field of a MessageEmbed
      * @typedef {Object} MessageEmbedAuthor
      * @property {string} name The name of this author
      * @property {string} url URL of this author
@@ -156,6 +168,7 @@ class MessageEmbed {
       : null;
 
     /**
+     * Represents the provider of a MessageEmbed
      * @typedef {Object} MessageEmbedProvider
      * @property {string} name The name of this provider
      * @property {string} url URL of this provider
@@ -173,6 +186,7 @@ class MessageEmbed {
       : null;
 
     /**
+     * Represents the footer field of a MessageEmbed
      * @typedef {Object} MessageEmbedFooter
      * @property {string} text The text of this footer
      * @property {string} iconURL URL of the icon for this footer

src/structures/MessageMentions.js

@@ -79,14 +79,14 @@ class MessageMentions {
     }
 
     /**
-     * Cached members for {@link MessageMention#members}
+     * Cached members for {@link MessageMentions#members}
      * @type {?Collection<Snowflake, GuildMember>}
      * @private
      */
     this._members = null;
 
     /**
-     * Cached channels for {@link MessageMention#channels}
+     * Cached channels for {@link MessageMentions#channels}
      * @type {?Collection<Snowflake, GuildChannel>}
      * @private
      */
@@ -138,7 +138,7 @@ class MessageMentions {
     if (!this.guild) return null;
     this._members = new Collection();
     this.users.forEach(user => {
-      const member = this.guild.member(user);
+      const member = this.guild.members.resolve(user);
       if (member) this._members.set(member.user.id, member);
     });
     return this._members;
@@ -164,7 +164,7 @@ class MessageMentions {
   /**
    * Checks if a user, guild member, role, or channel is mentioned.
    * Takes into account user mentions, role mentions, and @everyone/@here mentions.
-   * @param {UserResolvable|GuildMember|Role|GuildChannel} data User/GuildMember/Role/Channel to check
+   * @param {UserResolvable|RoleResolvable|GuildChannelResolvable} data User/Role/Channel to check
    * @param {Object} [options] Options
    * @param {boolean} [options.ignoreDirect=false] - Whether to ignore direct mentions to the item
    * @param {boolean} [options.ignoreRoles=false] - Whether to ignore role mentions to a guild member
@@ -179,7 +179,11 @@ class MessageMentions {
     }
 
     if (!ignoreDirect) {
-      const id = data.id || data;
+      const id =
+        this.client.users.resolveID(data) ||
+        (this.guild && this.guild.roles.resolveID(data)) ||
+        this.client.channels.resolveID(data);
+
       return this.users.has(id) || this.channels.has(id) || this.roles.has(id);
     }
 

src/structures/MessageReaction.js

@@ -28,12 +28,6 @@ class MessageReaction {
      */
     this.message = message;
 
-    /**
-     * Whether the client has given this reaction
-     * @type {boolean}
-     */
-    this.me = data.me;
-
     /**
      * A manager of the users that have given this reaction
      * @type {ReactionUserManager}
@@ -46,13 +40,20 @@ class MessageReaction {
   }
 
   _patch(data) {
-    /**
-     * The number of people that have given the same reaction
-     * @type {?number}
-     * @name MessageReaction#count
-     */
     // eslint-disable-next-line eqeqeq
-    if (this.count == undefined) this.count = data.count;
+    if (this.count == undefined) {
+      /**
+       * The number of people that have given the same reaction
+       * @type {?number}
+       */
+      this.count = data.count;
+    }
+
+    /**
+     * Whether the client has given this reaction
+     * @type {boolean}
+     */
+    this.me = data.me;
   }
 
   /**