feat: add ApplicationCommandRegistriesRegistered event (#587)

Co-authored-by: Vlad Frangu <kingdgrizzle@gmail.com>
Co-authored-by: Jeroen Claassens <support@favware.tech>

src/lib/types/Events.ts

@@ -20,6 +20,7 @@ import type {
 } from '../structures/Command';
 import type { InteractionHandler } from '../structures/InteractionHandler';
 import type { Listener } from '../structures/Listener';
+import type { ApplicationCommandRegistry } from '../utils/application-commands/ApplicationCommandRegistry';
 import type { PluginHook } from './Enums';
 
 export const Events = {
@@ -195,6 +196,12 @@ export const Events = {
 	 */
 	CommandApplicationCommandRegistryError: 'commandApplicationCommandRegistryError' as const,
 
+	/**
+	 * Emitted once the application command registries have been initialized.
+	 * @param {Map<string, ApplicationCommandRegistry>} registries The initialised registries
+	 */
+	ApplicationCommandRegistriesRegistered: 'applicationCommandRegistriesRegistered' as const,
+
 	// Piece store?
 	/**
 	 * Emitted after a piece is loaded.
@@ -541,6 +548,7 @@ declare module 'discord.js' {
 
 		[Events.ListenerError]: [error: unknown, payload: ListenerErrorPayload];
 		[Events.CommandApplicationCommandRegistryError]: [error: unknown, command: Command];
+		[Events.ApplicationCommandRegistriesRegistered]: [registries: Map<string, ApplicationCommandRegistry>];
 
 		[Events.PreMessageParsed]: [message: Message];
 		[Events.MentionPrefixOnly]: [message: Message];

src/lib/utils/application-commands/ApplicationCommandRegistries.ts

@@ -4,6 +4,7 @@ import type { ApplicationCommandManager } from 'discord.js';
 import type { Command } from '../../structures/Command';
 import type { CommandStore } from '../../structures/CommandStore';
 import { RegisterBehavior } from '../../types/Enums';
+import { Events } from '../../types/Events';
 import { ApplicationCommandRegistry } from './ApplicationCommandRegistry';
 import { emitRegistryError } from './emitRegistryError';
 import { getNeededRegistryParameters } from './getNeededParameters';
@@ -184,6 +185,8 @@ async function handleAppendOrUpdate(
 			}
 		}
 	}
+
+	container.client.emit(Events.ApplicationCommandRegistriesRegistered, registries);
 }
 
 interface BulkOverwriteData {