feat(slash): add SlashModule and sub command support

src/models/client.ts

@@ -14,6 +14,7 @@ import { ClientEvents } from '../gateway/handlers/index.ts'
 import { Extension } from './extensions.ts'
 import { SlashClient } from './slashClient.ts'
 import { Interaction } from '../structures/slash.ts'
+import { SlashModule } from './slashModule.ts'
 
 /** OS related properties sent with Gateway Identify */
 export interface ClientProperties {
@@ -95,6 +96,8 @@ export class Client extends EventEmitter {
     handler: (interaction: Interaction) => any
   }>
 
+  _decoratedSlashModules?: SlashModule[]
+
   private readonly _untypedOn = this.on
 
   private readonly _untypedEmit = this.emit
@@ -206,18 +209,34 @@ export function event(name?: string) {
     const listener = ((client as unknown) as {
       [name: string]: (...args: any[]) => any
     })[prop]
+    if (typeof listener !== 'function')
+      throw new Error('@event decorator requires a function')
     if (client._decoratedEvents === undefined) client._decoratedEvents = {}
     client._decoratedEvents[name === undefined ? prop : name] = listener
   }
 }
 
 export function slash(name?: string, guild?: string) {
-  return function (client: Client, prop: string) {
+  return function (client: Client | SlashModule, prop: string) {
     if (client._decoratedSlash === undefined) client._decoratedSlash = []
-    client._decoratedSlash.push({
-      name: name ?? prop,
-      guild,
-      handler: (client as { [name: string]: any })[prop]
-    })
+    const item = (client as { [name: string]: any })[prop]
+    if (typeof item !== 'function') {
+      client._decoratedSlash.push(item)
+    } else
+      client._decoratedSlash.push({
+        name: name ?? prop,
+        guild,
+        handler: item
+      })
+  }
+}
+
+export function slashModule() {
+  return function (client: Client, prop: string) {
+    if (client._decoratedSlashModules === undefined)
+      client._decoratedSlashModules = []
+
+    const mod = ((client as unknown) as { [key: string]: any })[prop]
+    client._decoratedSlashModules.push(mod)
   }
 }

src/models/commandClient.ts

@@ -383,18 +383,26 @@ export class CommandClient extends Client implements CommandClientOptions {
 
 export function command(options?: CommandOptions) {
   return function (target: CommandClient | Extension, name: string) {
+    if (target._decoratedCommands === undefined) target._decoratedCommands = {}
+
+    const prop = ((target as unknown) as {
+      [name: string]: (ctx: CommandContext) => any
+    })[name]
+
+    if (prop instanceof Command) {
+      target._decoratedCommands[prop.name] = prop
+      return
+    }
+
     const command = new Command()
 
     command.name = name
-    command.execute = ((target as unknown) as {
-      [name: string]: (ctx: CommandContext) => any
-    })[name]
+    command.execute = prop
 
     if (options !== undefined) Object.assign(command, options)
 
     if (target instanceof Extension) command.extension = target
 
-    if (target._decoratedCommands === undefined) target._decoratedCommands = {}
     target._decoratedCommands[command.name] = command
   }
 }

src/models/slashClient.ts

@@ -7,6 +7,7 @@ import {
   APPLICATION_GUILD_COMMANDS
 } from '../types/endpoint.ts'
 import {
+  InteractionType,
   SlashCommandOption,
   SlashCommandPartial,
   SlashCommandPayload
@@ -199,9 +200,12 @@ export class SlashClient {
     return this
   }
 
-  process(interaction: Interaction): any {
+  /** Process an incoming Slash Command (interaction) */
+  private process(interaction: Interaction): void {
     if (!this.enabled) return
 
+    if (interaction.type !== InteractionType.APPLICATION_COMMAND) return
+
     let cmd
 
     if (interaction.guild !== undefined)

src/models/slashModule.ts

@@ -0,0 +1,18 @@
+import { SlashCommandHandler } from './slashClient.ts'
+
+export class SlashModule {
+  name: string = ''
+  commands: SlashCommandHandler[] = []
+  _decoratedSlash?: SlashCommandHandler[]
+
+  constructor() {
+    if (this._decoratedSlash !== undefined) {
+      this.commands = this._decoratedSlash
+    }
+  }
+
+  add(handler: SlashCommandHandler): SlashModule {
+    this.commands.push(handler)
+    return this
+  }
+}

src/structures/slash.ts

@@ -76,7 +76,7 @@ export class Interaction {
     return this.data.name
   }
 
-  option(name: string): any {
+  option<T = any>(name: string): T {
     return this.data.options.find((e) => e.name === name)?.value
   }
 
@@ -121,6 +121,16 @@ export class Interaction {
     return this
   }
 
+  async deleteResponse(): Promise<Interaction> {
+    const url = WEBHOOK_MESSAGE(
+      this.client.user?.id as string,
+      this.token,
+      '@original'
+    )
+    await this.client.rest.delete(url)
+    return this
+  }
+
   get url(): string {
     return `https://discord.com/api/v8/webhooks/${this.client.user?.id}/${this.token}`
   }

src/types/slash.ts

@@ -8,9 +8,9 @@ export interface InteractionOption {
 }
 
 export interface InteractionData {
-  options: InteractionOption[]
   name: string
   id: string
+  options: InteractionOption[]
 }
 
 export enum InteractionType {
@@ -50,6 +50,7 @@ export interface SlashCommandOption {
   type: SlashCommandOptionType
   required: boolean
   choices?: SlashCommandChoice[]
+  options?: SlashCommandOption[]
 }
 
 export interface SlashCommandPartial {