feat(voice): add Gateway#updateVoiceState, VoiceChannel#join, VoiceChannel#leave

src/gateway/handlers/voiceStateUpdate.ts

@@ -8,7 +8,6 @@ export const voiceStateUpdate: GatewayEventHandler = async (
   gateway: Gateway,
   d: VoiceStatePayload
 ) => {
-  // TODO(DjDeveloperr): Support self-bot here; they can be in DMs (Call)
   if (d.guild_id === undefined) return
   const guild = ((await gateway.client.guilds.get(
     d.guild_id

src/gateway/index.ts

@@ -16,6 +16,8 @@ import { gatewayHandlers } from './handlers/index.ts'
 import { GATEWAY_BOT } from '../types/endpoint.ts'
 import { GatewayCache } from '../managers/gatewayCache.ts'
 import { delay } from '../utils/delay.ts'
+import { VoiceChannel } from '../structures/guildVoiceChannel.ts'
+import { Guild } from '../structures/guild.ts'
 
 export interface RequestMembersOptions {
   limit?: number
@@ -24,6 +26,11 @@ export interface RequestMembersOptions {
   users?: string[]
 }
 
+export interface VoiceStateOptions {
+  mute?: boolean
+  deaf?: boolean
+}
+
 export const RECONNECT_REASON = 'harmony-reconnect'
 
 /**
@@ -308,6 +315,27 @@ class Gateway {
     return nonce
   }
 
+  updateVoiceState(
+    guild: Guild | string,
+    channel?: VoiceChannel | string,
+    voiceOptions: VoiceStateOptions = {}
+  ): void {
+    this.send({
+      op: GatewayOpcodes.VOICE_STATE_UPDATE,
+      d: {
+        guild_id: typeof guild === 'string' ? guild : guild.id,
+        channel_id:
+          channel === undefined
+            ? null
+            : typeof channel === 'string'
+            ? channel
+            : channel?.id,
+        self_mute: voiceOptions.mute === undefined ? false : voiceOptions.mute,
+        self_deaf: voiceOptions.deaf === undefined ? false : voiceOptions.deaf
+      }
+    })
+  }
+
   debug(msg: string): void {
     this.client.debug('Gateway', msg)
   }

src/models/rest.ts

@@ -244,7 +244,8 @@ export class RESTManager {
   private async handleStatusCode(
     response: Response,
     body: any,
-    data: { [key: string]: any }
+    data: { [key: string]: any },
+    reject: CallableFunction
   ): Promise<undefined> {
     const status = response.status
 
@@ -261,18 +262,48 @@ export class RESTManager {
     if (text === 'undefined') text = undefined
 
     if (status === HttpResponseCode.Unauthorized)
-      throw new DiscordAPIError(
+      reject(
-        `Request was not successful (Unauthorized). Invalid Token.\n${text}`
+        new DiscordAPIError(
+          `Request was not successful (Unauthorized). Invalid Token.\n${text}`
+        )
       )
 
     // At this point we know it is error
-    let error = {
+    const error: { [name: string]: any } = {
       url: response.url,
       status,
       method: data.method,
-      body: data.body
+      code: body?.code,
+      message: body?.message,
+      errors: Object.fromEntries(
+        Object.entries(
+          body?.errors as {
+            [name: string]: {
+              _errors: Array<{ code: string; message: string }>
+            }
+          }
+        ).map((entry) => {
+          return [entry[0], entry[1]._errors]
+        })
+      )
     }
-    if (body !== undefined) error = Object.assign(error, body)
+
+    // if (typeof error.errors === 'object') {
+    //   const errors = error.errors as {
+    //     [name: string]: { _errors: Array<{ code: string; message: string }> }
+    //   }
+    //   console.log(`%cREST Error:`, 'color: #F14C39;')
+    //   Object.entries(errors).forEach((entry) => {
+    //     console.log(`  %c${entry[0]}:`, 'color: #12BC79;')
+    //     entry[1]._errors.forEach((e) => {
+    //       console.log(
+    //         `    %c${e.code}: %c${e.message}`,
+    //         'color: skyblue;',
+    //         'color: #CECECE;'
+    //       )
+    //     })
+    //   })
+    // }
 
     if (
       [
@@ -282,10 +313,10 @@ export class RESTManager {
         HttpResponseCode.MethodNotAllowed
       ].includes(status)
     ) {
-      throw new DiscordAPIError(Deno.inspect(error))
+      reject(new DiscordAPIError(Deno.inspect(error)))
     } else if (status === HttpResponseCode.GatewayUnavailable) {
-      throw new DiscordAPIError(Deno.inspect(error))
+      reject(new DiscordAPIError(Deno.inspect(error)))
-    } else throw new DiscordAPIError('Request - Unknown Error')
+    } else reject(new DiscordAPIError('Request - Unknown Error'))
   }
 
   /**
@@ -347,7 +378,7 @@ export class RESTManager {
             )
 
           const json: any = await response.json()
-          await this.handleStatusCode(response, json, requestData)
+          await this.handleStatusCode(response, json, requestData, reject)
 
           if (
             json.retry_after !== undefined ||

src/structures/guildVoiceChannel.ts

@@ -1,7 +1,10 @@
+import { VoiceServerUpdateData } from '../gateway/handlers/index.ts'
+import { VoiceStateOptions } from '../gateway/index.ts'
 import { Client } from '../models/client.ts'
 import { GuildVoiceChannelPayload, Overwrite } from '../types/channel.ts'
 import { Channel } from './channel.ts'
 import { Guild } from './guild.ts'
+import { VoiceState } from './voiceState.ts'
 
 export class VoiceChannel extends Channel {
   bitrate: string
@@ -29,6 +32,50 @@ export class VoiceChannel extends Channel {
     // cache.set('guildvoicechannel', this.id, this)
   }
 
+  async join(options?: VoiceStateOptions): Promise<VoiceServerUpdateData> {
+    return await new Promise((resolve, reject) => {
+      let vcdata: VoiceServerUpdateData | undefined
+      let done = 0
+
+      const onVoiceStateAdd = (state: VoiceState): void => {
+        if (state.user.id !== this.client.user?.id) return
+        if (state.channel?.id !== this.id) return
+        this.client.removeListener('voiceStateAdd', onVoiceStateAdd)
+        done++
+        if (done >= 2) resolve(vcdata)
+      }
+
+      const onVoiceServerUpdate = (data: VoiceServerUpdateData): void => {
+        if (data.guild.id !== this.guild.id) return
+        vcdata = data
+        this.client.removeListener('voiceServerUpdate', onVoiceServerUpdate)
+        done++
+        if (done >= 2) resolve(vcdata)
+      }
+
+      this.client.gateway?.updateVoiceState(this.guild.id, this.id, options)
+
+      this.client.on('voiceStateAdd', onVoiceStateAdd)
+      this.client.on('voiceServerUpdate', onVoiceServerUpdate)
+
+      setTimeout(() => {
+        if (done < 2) {
+          this.client.removeListener('voiceServerUpdate', onVoiceServerUpdate)
+          this.client.removeListener('voiceStateAdd', onVoiceStateAdd)
+          reject(
+            new Error(
+              "Connection timed out - couldn't connect to Voice Channel"
+            )
+          )
+        }
+      }, 1000 * 60)
+    })
+  }
+
+  leave(): void {
+    this.client.gateway?.updateVoiceState(this.guild.id, undefined)
+  }
+
   readFromData(data: GuildVoiceChannelPayload): void {
     super.readFromData(data)
     this.bitrate = data.bitrate ?? this.bitrate

src/structures/voiceState.ts

@@ -8,6 +8,7 @@ import { User } from './user.ts'
 
 export class VoiceState extends Base {
   guild?: Guild
+  channelID: string | null
   channel: VoiceChannel | null
   user: User
   member?: Member
@@ -29,6 +30,7 @@ export class VoiceState extends Base {
     }
   ) {
     super(client, data)
+    this.channelID = data.channel_id
     this.channel = _data.channel
     this.sessionID = data.session_id
     this.user = _data.user
@@ -46,6 +48,7 @@ export class VoiceState extends Base {
   readFromData(data: VoiceStatePayload): void {
     this.sessionID = data.session_id ?? this.sessionID
     this.deaf = data.deaf ?? this.deaf
+    this.channelID = data.channel_id ?? this.channelID
     this.mute = data.mute ?? this.mute
     this.deaf = data.self_deaf ?? this.deaf
     this.mute = data.self_mute ?? this.mute

src/test/cmd.ts

@@ -12,7 +12,8 @@ import { TOKEN } from './config.ts'
 const client = new CommandClient({
   prefix: ['pls', '!'],
   spacesAfterPrefix: true,
-  mentionPrefix: true
+  mentionPrefix: true,
+  owners: ['422957901716652033']
 })
 
 client.on('debug', console.log)
@@ -116,20 +117,12 @@ client.on('channelUpdate', (before, after) => {
   )
 })
 
-client.on('typingStart', (user, channel, at, guildData) => {
-  console.log(
-    `${user.tag} started typing in ${channel.id} at ${at}${
-      guildData !== undefined ? `\nGuild: ${guildData.guild.name}` : ''
-    }`
-  )
-})
-
 client.on('voiceStateAdd', (state) => {
-  console.log('VC Join', state)
+  console.log('VC Join', state.user.tag)
 })
 
 client.on('voiceStateRemove', (state) => {
-  console.log('VC Leave', state)
+  console.log('VC Leave', state.user.tag)
 })
 
 client.on('messageReactionAdd', (reaction, user) => {

src/test/cmds/eval.ts

@@ -0,0 +1,21 @@
+import { Command } from '../../../mod.ts'
+import { CommandContext } from '../../models/command.ts'
+
+export default class EvalCommand extends Command {
+  name = 'eval'
+  ownerOnly = true
+
+  async execute(ctx: CommandContext): Promise<void> {
+    try {
+      // eslint-disable-next-line no-eval
+      let evaled = eval(ctx.argString)
+      if (evaled instanceof Promise) evaled = await evaled
+      if (typeof evaled === 'object') evaled = Deno.inspect(evaled)
+      await ctx.message.reply(
+        `\`\`\`js\n${`${evaled}`.substring(0, 1990)}\n\`\`\``
+      )
+    } catch (e) {
+      ctx.message.reply(`\`\`\`js\n${e.stack}\n\`\`\``)
+    }
+  }
+}

src/test/cmds/join.ts

@@ -0,0 +1,17 @@
+import { Command } from '../../../mod.ts'
+import { CommandContext } from '../../models/command.ts'
+
+export default class JoinCommand extends Command {
+  name = 'join'
+  guildOnly = true
+
+  async execute(ctx: CommandContext): Promise<void> {
+    const userVS = await ctx.guild?.voiceStates.get(ctx.author.id)
+    if (userVS === undefined) {
+      ctx.message.reply("You're not in VC.")
+      return
+    }
+    await userVS.channel?.join()
+    ctx.message.reply(`Joined VC channel - ${userVS.channel?.name}!`)
+  }
+}

src/test/cmds/leave.ts

@@ -0,0 +1,19 @@
+import { Command } from '../../../mod.ts'
+import { CommandContext } from '../../models/command.ts'
+
+export default class LeaveCommand extends Command {
+  name = 'leave'
+  guildOnly = true
+
+  async execute(ctx: CommandContext): Promise<void> {
+    const userVS = await ctx.guild?.voiceStates.get(
+      (ctx.client.user?.id as unknown) as string
+    )
+    if (userVS === undefined) {
+      ctx.message.reply("I'm not in VC.")
+      return
+    }
+    userVS.channel?.leave()
+    ctx.message.reply(`Left VC channel - ${userVS.channel?.name}!`)
+  }
+}