feat(Message|TextChannel): inline replies

src/structures/message.ts

@@ -16,7 +16,6 @@ import { Embed } from './embed.ts'
 import { CHANNEL_MESSAGE } from '../types/endpoint.ts'
 import { MessageMentions } from './messageMentions.ts'
 import { TextChannel } from './textChannel.ts'
-import { DMChannel } from './dmChannel.ts'
 import { Guild } from './guild.ts'
 
 type AllMessageOptions = MessageOption | Embed
@@ -110,10 +109,9 @@ export class Message extends Base {
     return this.channel.editMessage(this.id, text, option)  
   }
 
+  /** These will **not** work in all servers, as this feature is coming slowly. */
   async reply(text?: string | AllMessageOptions, option?: AllMessageOptions): Promise<Message> {
-    // TODO: Use inline replies once they're out
-    if (this.channel instanceof DMChannel) return this.channel.send(text, option)
-    return this.channel.send(`${this.author.mention}, ${text}`, option)
+    return this.channel.send(text, Object.assign(option, { reply: this }))
   }
 
   async delete (): Promise<void> {

src/structures/textChannel.ts

@@ -1,6 +1,6 @@
 import { MessagesManager } from "../../mod.ts"
 import { Client } from '../models/client.ts'
-import { GuildTextChannelPayload, MessageOption, Overwrite, TextChannelPayload } from '../types/channel.ts'
+import { GuildTextChannelPayload, MessageOption, MessageReference, Overwrite, TextChannelPayload } from '../types/channel.ts'
 import { CHANNEL_MESSAGE, CHANNEL_MESSAGES } from '../types/endpoint.ts'
 import { Channel } from './channel.ts'
 import { Embed } from './embed.ts'
@@ -39,13 +39,24 @@ export class TextChannel extends Channel {
       embed: option
     }
 
-    const resp = await this.client.rest.post(CHANNEL_MESSAGES(this.id), {
+    const payload: any = {
       content: text,
       embed: option?.embed,
       file: option?.file,
       tts: option?.tts,
       allowed_mentions: option?.allowedMention
-    })
+    }
+
+    if (option?.reply !== undefined) {
+      const reference: MessageReference = {
+        message_id: option.reply.id,
+        channel_id: option.reply.channel.id,
+        guild_id: option.reply.guild?.id,
+      }
+      payload.message_reference = reference
+    }
+
+    const resp = await this.client.rest.post(CHANNEL_MESSAGES(this.id), payload)
 
     const res = new Message(this.client, resp, this, this.client.user as any)
     await res.mentions.fromPayload(resp)

src/types/channel.ts

@@ -106,7 +106,8 @@ export interface MessageOption {
     parse: ['everyone', 'users', 'roles']
     roles: string[]
     users: string[]
-  }
+  },
+  reply?: Message
 }
 
 export interface ChannelMention {