Add custom decorator to set default permissions (#12)

services/bots/src/discord/commands/ping.ts

@@ -1,7 +1,9 @@
 import { TransformPipe } from '@discord-nestjs/common';
-import { Command, DiscordTransformedCommand, UsePipes } from '@discord-nestjs/core';
+import { DiscordTransformedCommand, UsePipes } from '@discord-nestjs/core';
+import { PermissionFlagsBits } from 'discord.js';
+import { DiscordCommand } from '../discord.decorator';
 
-@Command({
+@DiscordCommand({
   name: 'ping',
   description: 'Returns pong',
 })

services/bots/src/discord/commands/versions.ts

@@ -1,13 +1,14 @@
 import { TransformPipe } from '@discord-nestjs/common';
-import { Command, DiscordTransformedCommand, UsePipes } from '@discord-nestjs/core';
+import { DiscordTransformedCommand, UsePipes } from '@discord-nestjs/core';
 import fetch from 'node-fetch';
 
 import { getVersionInfo } from '@lib/common';
 import { ChatInputCommandInteraction, EmbedBuilder } from 'discord.js';
+import { DiscordCommand } from '../discord.decorator';
 
 const version = getVersionInfo(__dirname);
 
-@Command({
+@DiscordCommand({
   name: 'versions',
   description: 'Returns version information',
 })

services/bots/src/discord/discord.decorator.ts

@@ -0,0 +1,17 @@
+import { CommandOptions, COMMAND_DECORATOR } from '@discord-nestjs/core';
+import { PermissionFlagsBits } from 'discord.js';
+
+export function DiscordCommand(options: CommandOptions): ClassDecorator {
+  return <TFunction extends Function>(target: TFunction): TFunction | void => {
+    Reflect.defineMetadata(
+      COMMAND_DECORATOR,
+      {
+        defaultMemberPermissions: [PermissionFlagsBits.UseApplicationCommands], // Sets default permissions on all commends
+        ...options,
+      },
+      target.prototype,
+    );
+
+    return target;
+  };
+}