feat(command): add nsfw property and checks

src/models/command.ts

@@ -61,6 +61,8 @@ export interface CommandOptions {
   whitelistedChannels?: string | string[]
   /** Whitelisted Users. Command can be executed only by these Users (List or one of IDs) */
   whitelistedUsers?: string | string[]
+  /** Whether the Command can only be used in NSFW channel or not */
+  nsfw?: boolean
   /** Whether the Command can only be used in Guild (if allowed in DMs) */
   guildOnly?: boolean
   /** Whether the Command can only be used in Bot's DMs (if allowed) */
@@ -85,6 +87,7 @@ export class Command implements CommandOptions {
   whitelistedGuilds?: string | string[]
   whitelistedChannels?: string | string[]
   whitelistedUsers?: string | string[]
+  nsfw?: boolean
   guildOnly?: boolean
   dmOnly?: boolean
   ownerOnly?: boolean
@@ -253,6 +256,11 @@ export class CommandBuilder extends Command {
     return this
   }
 
+  setNSFW(value: boolean = true): CommandBuilder {
+    this.nsfw = value
+    return this
+  }
+
   setOwnerOnly(value: boolean = true): CommandBuilder {
     this.ownerOnly = value
     return this

src/models/commandClient.ts

@@ -1,4 +1,5 @@
 import { Message } from '../structures/message.ts'
+import { GuildTextChannel } from '../structures/textChannel.ts'
 import { awaitSync } from '../utils/mixedPromise.ts'
 import { Client, ClientOptions } from './client.ts'
 import {
@@ -277,6 +278,13 @@ export class CommandClient extends Client implements CommandClientOptions {
     )
       return this.emit('commandDmOnly', ctx, command)
 
+    if (
+      command.nsfw === true &&
+      (msg.guild === undefined ||
+        ((msg.channel as unknown) as GuildTextChannel).nsfw !== true)
+    )
+      return this.emit('commandNSFW', ctx, command)
+
     const allPermissions =
       command.permissions !== undefined
         ? command.permissions