fix: message builders (#10802)

* fix: message builders

- Added `clearParse`, `clearRoles`, and `clearUsers` methods to the `AllowedMentionsBuilder`, since passing an empty array and omitting the these fields behave differently
- Strictened assertions
- Removed `AttachmentBuilder#clearId`, as it is a required field
- Added missing `MessageBuilder#setEmbeds`
- Added missing `MessageReferenceBuilder#setFailIfNotExists`
- Improve/fix documentation
- Consistency™️

* fix: updater functions return type

---------

Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

packages/builders/__tests__/messages/message.test.ts

@@ -1,6 +1,6 @@
 import { AllowedMentionsTypes, MessageFlags } from 'discord-api-types/v10';
 import { describe, test, expect } from 'vitest';
-import { EmbedBuilder, MessageBuilder } from '../../src/index.js';
+import { AllowedMentionsBuilder, EmbedBuilder, MessageBuilder } from '../../src/index.js';
 
 const base = {
 	allowed_mentions: undefined,
@@ -24,13 +24,41 @@ describe('Message', () => {
 		expect(() => message.toJSON()).toThrow();
 	});
 
+	test('GIVEN parse: [users] and empty users THEN return valid toJSON data', () => {
+		const allowedMentions = new AllowedMentionsBuilder();
+		allowedMentions.setUsers();
+		allowedMentions.setParse(AllowedMentionsTypes.User);
+		expect(allowedMentions.toJSON()).toStrictEqual({ parse: [AllowedMentionsTypes.User], users: [] });
+	});
+
+	test('GIVEN parse: [roles] and empty roles THEN return valid toJSON data', () => {
+		const allowedMentions = new AllowedMentionsBuilder();
+		allowedMentions.setRoles();
+		allowedMentions.setParse(AllowedMentionsTypes.Role);
+		expect(allowedMentions.toJSON()).toStrictEqual({ parse: [AllowedMentionsTypes.Role], roles: [] });
+	});
+
+	test('GIVEN specific users and parse: [users] THEN it throws', () => {
+		const allowedMentions = new AllowedMentionsBuilder();
+		allowedMentions.setUsers('123');
+		allowedMentions.setParse(AllowedMentionsTypes.User);
+		expect(() => allowedMentions.toJSON()).toThrow();
+	});
+
+	test('GIVEN specific roles and parse: [roles] THEN it throws', () => {
+		const allowedMentions = new AllowedMentionsBuilder();
+		allowedMentions.setRoles('123');
+		allowedMentions.setParse(AllowedMentionsTypes.Role);
+		expect(() => allowedMentions.toJSON()).toThrow();
+	});
+
 	test('GIVEN tons of data THEN return valid toJSON data', () => {
 		const message = new MessageBuilder()
 			.setContent('foo')
 			.setNonce(123)
 			.setTTS()
 			.addEmbeds(new EmbedBuilder().setTitle('foo').setDescription('bar'))
-			.setAllowedMentions({ parse: [AllowedMentionsTypes.Role], roles: ['123'] })
+			.setAllowedMentions({ parse: [AllowedMentionsTypes.Role] })
 			.setMessageReference({ channel_id: '123', message_id: '123' })
 			.addActionRowComponents((row) =>
 				row.addPrimaryButtonComponents((button) => button.setCustomId('abc').setLabel('def')),
@@ -46,7 +74,7 @@ describe('Message', () => {
 			nonce: 123,
 			tts: true,
 			embeds: [{ title: 'foo', description: 'bar', author: undefined, fields: [], footer: undefined }],
-			allowed_mentions: { parse: ['roles'], roles: ['123'] },
+			allowed_mentions: { parse: ['roles'] },
 			message_reference: { channel_id: '123', message_id: '123' },
 			components: [
 				{

packages/builders/src/messages/AllowedMentions.ts

@@ -11,9 +11,9 @@ export class AllowedMentionsBuilder implements JSONEncodable<APIAllowedMentions>
 	private readonly data: Partial<APIAllowedMentions>;
 
 	/**
-	 * Creates new allowed mention builder from API data.
+	 * Creates a new allowed mentions builder from API data.
 	 *
-	 * @param data - The API data to create this attachment with
+	 * @param data - The API data to create this allowed mentions builder with
 	 */
 	public constructor(data: Partial<APIAllowedMentions> = {}) {
 		this.data = structuredClone(data);
@@ -29,6 +29,14 @@ export class AllowedMentionsBuilder implements JSONEncodable<APIAllowedMentions>
 		return this;
 	}
 
+	/**
+	 * Clears the parse mention types.
+	 */
+	public clearParse(): this {
+		this.data.parse = undefined;
+		return this;
+	}
+
 	/**
 	 * Sets the roles to mention.
 	 *
@@ -65,7 +73,7 @@ export class AllowedMentionsBuilder implements JSONEncodable<APIAllowedMentions>
 	 * allowedMentions.spliceRoles(0, 1);
 	 * ```
 	 * @example
-	 * Remove the first n role:
+	 * Remove the first n roles:
 	 * ```ts
 	 * const n = 4;
 	 * allowedMentions.spliceRoles(0, n);
@@ -85,6 +93,14 @@ export class AllowedMentionsBuilder implements JSONEncodable<APIAllowedMentions>
 		return this;
 	}
 
+	/**
+	 * Clears the roles to mention.
+	 */
+	public clearRoles(): this {
+		this.data.roles = undefined;
+		return this;
+	}
+
 	/**
 	 * Sets the users to mention.
 	 *
@@ -120,7 +136,7 @@ export class AllowedMentionsBuilder implements JSONEncodable<APIAllowedMentions>
 	 * allowedMentions.spliceUsers(0, 1);
 	 * ```
 	 * @example
-	 * Remove the first n user:
+	 * Remove the first n users:
 	 * ```ts
 	 * const n = 4;
 	 * allowedMentions.spliceUsers(0, n);
@@ -141,7 +157,17 @@ export class AllowedMentionsBuilder implements JSONEncodable<APIAllowedMentions>
 	}
 
 	/**
-	 * For replies, sets whether to mention the author of the message being replied to
+	 * Clears the users to mention.
+	 */
+	public clearUsers(): this {
+		this.data.users = undefined;
+		return this;
+	}
+
+	/**
+	 * For replies, sets whether to mention the author of the message being replied to.
+	 *
+	 * @param repliedUser - Whether to mention the author of the message being replied to
 	 */
 	public setRepliedUser(repliedUser = true): this {
 		this.data.replied_user = repliedUser;

packages/builders/src/messages/Assertions.ts

@@ -5,19 +5,34 @@ import { pollPredicate } from './poll/Assertions.js';
 
 export const attachmentPredicate = z.object({
 	id: z.union([z.string(), z.number()]),
-	description: z.string().optional(),
-	duration_secs: z.number().optional(),
-	filename: z.string().optional(),
-	title: z.string().optional(),
-	waveform: z.string().optional(),
+	description: z.string().max(1_024).optional(),
+	duration_secs: z
+		.number()
+		.max(2 ** 31 - 1)
+		.optional(),
+	filename: z.string().max(1_024).optional(),
+	title: z.string().max(1_024).optional(),
+	waveform: z.string().max(400).optional(),
 });
 
-export const allowedMentionPredicate = z.object({
-	parse: z.nativeEnum(AllowedMentionsTypes).array().optional(),
-	roles: z.string().array().optional(),
-	users: z.string().array().optional(),
-	replied_user: z.boolean().optional(),
-});
+export const allowedMentionPredicate = z
+	.object({
+		parse: z.nativeEnum(AllowedMentionsTypes).array().optional(),
+		roles: z.string().array().max(100).optional(),
+		users: z.string().array().max(100).optional(),
+		replied_user: z.boolean().optional(),
+	})
+	.refine(
+		(data) =>
+			!(
+				(data.parse?.includes(AllowedMentionsTypes.User) && data.users?.length) ||
+				(data.parse?.includes(AllowedMentionsTypes.Role) && data.roles?.length)
+			),
+		{
+			message:
+				'Cannot specify both parse: ["users"] and non-empty users array, or parse: ["roles"] and non-empty roles array. These are mutually exclusive',
+		},
+	);
 
 export const messageReferencePredicate = z.object({
 	channel_id: z.string().optional(),
@@ -54,9 +69,9 @@ const basicActionRowPredicate = z.object({
 
 const messageNoComponentsV2Predicate = baseMessagePredicate
 	.extend({
-		content: z.string().optional(),
+		content: z.string().max(2_000).optional(),
 		embeds: embedPredicate.array().max(10).optional(),
-		sticker_ids: z.array(z.string()).min(0).max(3).optional(),
+		sticker_ids: z.array(z.string()).max(3).optional(),
 		poll: pollPredicate.optional(),
 		components: basicActionRowPredicate.array().max(5).optional(),
 		flags: z

packages/builders/src/messages/Attachment.ts

@@ -10,15 +10,17 @@ export class AttachmentBuilder implements JSONEncodable<RESTAPIAttachment> {
 	private readonly data: Partial<RESTAPIAttachment>;
 
 	/**
-	 * Creates new attachment builder from API data.
+	 * Creates a new attachment builder from API data.
 	 *
-	 * @param data - The API data to create this attachment with
+	 * @param data - The API data to create this attachment builder with
 	 */
 	public constructor(data: Partial<RESTAPIAttachment> = {}) {
 		this.data = structuredClone(data);
 	}
 
 	/**
+	 * Sets the id of the attachment.
+	 *
 	 * @param id - The id of the attachment
 	 */
 	public setId(id: Snowflake): this {
@@ -26,16 +28,10 @@ export class AttachmentBuilder implements JSONEncodable<RESTAPIAttachment> {
 		return this;
 	}
 
-	/**
-	 * Clears the id of this attachment.
-	 */
-	public clearId(): this {
-		this.data.id = undefined;
-		return this;
-	}
-
 	/**
 	 * Sets the description of this attachment.
+	 *
+	 * @param description - The description of the attachment
 	 */
 	public setDescription(description: string): this {
 		this.data.description = description;
@@ -105,7 +101,7 @@ export class AttachmentBuilder implements JSONEncodable<RESTAPIAttachment> {
 	}
 
 	/**
-	 * Sets the waveform of this attachment.
+	 * Sets the waveform of this attachment (audio clips).
 	 *
 	 * @param waveform - The waveform of the attachment
 	 */

packages/builders/src/messages/Message.ts

@@ -1,3 +1,5 @@
+/* eslint-disable jsdoc/check-param-names */
+
 import type { JSONEncodable } from '@discordjs/util';
 import type {
 	APIActionRowComponent,
@@ -53,6 +55,9 @@ export interface MessageBuilderData
 	poll?: PollBuilder;
 }
 
+/**
+ * A builder that creates API-compatible JSON data for messages.
+ */
 export class MessageBuilder implements JSONEncodable<RESTPostAPIChannelMessageJSONBody> {
 	/**
 	 * The API data associated with this message.
@@ -81,19 +86,27 @@ export class MessageBuilder implements JSONEncodable<RESTPostAPIChannelMessageJS
 	}
 
 	/**
-	 * Creates new attachment builder from API data.
+	 * Creates a new message builder from API data.
 	 *
-	 * @param data - The API data to create this attachment with
+	 * @param data - The API data to create this message builder with
 	 */
-	public constructor(data: Partial<RESTPostAPIChannelMessageJSONBody> = {}) {
+	public constructor({
+		attachments = [],
+		embeds = [],
+		components = [],
+		message_reference,
+		poll,
+		allowed_mentions,
+		...data
+	}: Partial<RESTPostAPIChannelMessageJSONBody> = {}) {
 		this.data = {
 			...structuredClone(data),
-			allowed_mentions: data.allowed_mentions ? new AllowedMentionsBuilder(data.allowed_mentions) : undefined,
-			attachments: data.attachments?.map((attachment) => new AttachmentBuilder(attachment)) ?? [],
-			embeds: data.embeds?.map((embed) => new EmbedBuilder(embed)) ?? [],
-			poll: data.poll ? new PollBuilder(data.poll) : undefined,
-			components: data.components?.map((component) => createComponentBuilder(component)) ?? [],
-			message_reference: data.message_reference ? new MessageReferenceBuilder(data.message_reference) : undefined,
+			allowed_mentions: allowed_mentions && new AllowedMentionsBuilder(allowed_mentions),
+			attachments: attachments.map((attachment) => new AttachmentBuilder(attachment)),
+			embeds: embeds.map((embed) => new EmbedBuilder(embed)),
+			poll: poll && new PollBuilder(poll),
+			components: components.map((component) => createComponentBuilder(component)),
+			message_reference: message_reference && new MessageReferenceBuilder(message_reference),
 		};
 	}
 
@@ -135,6 +148,8 @@ export class MessageBuilder implements JSONEncodable<RESTPostAPIChannelMessageJS
 
 	/**
 	 * Sets whether the message is TTS.
+	 *
+	 * @param tts - Whether the message is TTS
 	 */
 	public setTTS(tts = true): this {
 		this.data.tts = tts;
@@ -213,6 +228,15 @@ export class MessageBuilder implements JSONEncodable<RESTPostAPIChannelMessageJS
 		return this;
 	}
 
+	/**
+	 * Sets the embeds for this message.
+	 *
+	 * @param embeds - The embeds to set
+	 */
+	public setEmbeds(...embeds: RestOrArray<APIEmbed | EmbedBuilder | ((builder: EmbedBuilder) => EmbedBuilder)>): this {
+		return this.spliceEmbeds(0, this.embeds.length, ...normalizeArray(embeds));
+	}
+
 	/**
 	 * Sets the allowed mentions for this message.
 	 *
@@ -233,8 +257,8 @@ export class MessageBuilder implements JSONEncodable<RESTPostAPIChannelMessageJS
 	 *
 	 * @param updater - The function to update the allowed mentions with
 	 */
-	public updateAllowedMentions(updater: (builder: AllowedMentionsBuilder) => AllowedMentionsBuilder): this {
-		this.data.allowed_mentions = updater(this.data.allowed_mentions ?? new AllowedMentionsBuilder());
+	public updateAllowedMentions(updater: (builder: AllowedMentionsBuilder) => void): this {
+		updater((this.data.allowed_mentions ??= new AllowedMentionsBuilder()));
 		return this;
 	}
 
@@ -266,8 +290,8 @@ export class MessageBuilder implements JSONEncodable<RESTPostAPIChannelMessageJS
 	 *
 	 * @param updater - The function to update the message reference with
 	 */
-	public updateMessageReference(updater: (builder: MessageReferenceBuilder) => MessageReferenceBuilder): this {
-		this.data.message_reference = updater(this.data.message_reference ?? new MessageReferenceBuilder());
+	public updateMessageReference(updater: (builder: MessageReferenceBuilder) => void): this {
+		updater((this.data.message_reference ??= new MessageReferenceBuilder()));
 		return this;
 	}
 
@@ -451,8 +475,7 @@ export class MessageBuilder implements JSONEncodable<RESTPostAPIChannelMessageJS
 	 * @param stickerIds - The ids of the stickers to set
 	 */
 	public setStickerIds(...stickerIds: RestOrArray<Snowflake>): this {
-		this.data.sticker_ids = normalizeArray(stickerIds) as MessageBuilderData['sticker_ids'];
-		return this;
+		return this.spliceStickerIds(0, this.data.sticker_ids?.length ?? 0, ...normalizeArray(stickerIds));
 	}
 
 	/**
@@ -508,10 +531,7 @@ export class MessageBuilder implements JSONEncodable<RESTPostAPIChannelMessageJS
 	public setAttachments(
 		...attachments: RestOrArray<APIAttachment | AttachmentBuilder | ((builder: AttachmentBuilder) => AttachmentBuilder)>
 	): this {
-		const resolved = normalizeArray(attachments).map((attachment) => resolveBuilder(attachment, AttachmentBuilder));
-		this.data.attachments = resolved;
-
-		return this;
+		return this.spliceAttachments(0, this.data.attachments.length, ...normalizeArray(attachments));
 	}
 
 	/**
@@ -569,6 +589,8 @@ export class MessageBuilder implements JSONEncodable<RESTPostAPIChannelMessageJS
 
 	/**
 	 * Sets the flags for this message.
+	 *
+	 * @param flags - The flags to set
 	 */
 	public setFlags(flags: MessageFlags): this {
 		this.data.flags = flags;
@@ -584,7 +606,9 @@ export class MessageBuilder implements JSONEncodable<RESTPostAPIChannelMessageJS
 	}
 
 	/**
-	 * Sets `enforce_nonce` for this message.
+	 * Sets whether to enforce recent uniqueness of the nonce of this message.
+	 *
+	 * @param enforceNonce - Whether to enforce recent uniqueness of the nonce of this message
 	 */
 	public setEnforceNonce(enforceNonce = true): this {
 		this.data.enforce_nonce = enforceNonce;
@@ -606,8 +630,8 @@ export class MessageBuilder implements JSONEncodable<RESTPostAPIChannelMessageJS
 	 *
 	 * @param updater - The function to update the poll with
 	 */
-	public updatePoll(updater: (builder: PollBuilder) => PollBuilder): this {
-		this.data.poll = updater(this.data.poll ?? new PollBuilder());
+	public updatePoll(updater: (builder: PollBuilder) => void): this {
+		updater((this.data.poll ??= new PollBuilder()));
 		return this;
 	}
 
@@ -632,12 +656,12 @@ export class MessageBuilder implements JSONEncodable<RESTPostAPIChannelMessageJS
 		const data = {
 			...structuredClone(rest),
 			// Wherever we pass false, it's covered by the messagePredicate already
-			poll: this.data.poll?.toJSON(false),
+			poll: poll?.toJSON(false),
 			allowed_mentions: allowed_mentions?.toJSON(false),
 			attachments: attachments.map((attachment) => attachment.toJSON(false)),
-			embeds: this.data.embeds.map((embed) => embed.toJSON(false)),
+			embeds: embeds.map((embed) => embed.toJSON(false)),
 			// Here, the messagePredicate does specific constraints rather than using the componentPredicate
-			components: this.data.components?.map((component) => component.toJSON(validationOverride)),
+			components: components.map((component) => component.toJSON(validationOverride)),
 			message_reference: message_reference?.toJSON(false),
 		};
 

packages/builders/src/messages/MessageReference.ts

@@ -1,29 +1,25 @@
 import type { JSONEncodable } from '@discordjs/util';
-import type { APIMessageReference, MessageReferenceType, Snowflake } from 'discord-api-types/v10';
+import type { MessageReferenceType, RESTAPIMessageReference, Snowflake } from 'discord-api-types/v10';
 import { validate } from '../util/validation.js';
 import { messageReferencePredicate } from './Assertions.js';
 
-export interface MessageReferenceBuilderData extends Omit<APIMessageReference, 'message_id'> {
-	message_id: Snowflake;
-}
-
 /**
  * A builder that creates API-compatible JSON data for message references.
  */
-export class MessageReferenceBuilder implements JSONEncodable<MessageReferenceBuilderData> {
-	private readonly data: Partial<MessageReferenceBuilderData>;
+export class MessageReferenceBuilder implements JSONEncodable<RESTAPIMessageReference> {
+	private readonly data: Partial<RESTAPIMessageReference>;
 
 	/**
-	 * Creates new allowed mention builder from API data.
+	 * Creates a new message reference builder from API data.
 	 *
-	 * @param data - The API data to create this attachment with
+	 * @param data - The API data to create this message reference builder with
 	 */
-	public constructor(data: Partial<MessageReferenceBuilderData> = {}) {
+	public constructor(data: Partial<RESTAPIMessageReference> = {}) {
 		this.data = structuredClone(data);
 	}
 
 	/**
-	 * Sets the types of message reference this represents
+	 * Sets the type of message reference this represents
 	 *
 	 * @param type - The type of message reference
 	 */
@@ -86,6 +82,16 @@ export class MessageReferenceBuilder implements JSONEncodable<MessageReferenceBu
 		return this;
 	}
 
+	/**
+	 * Sets whether to fail the message creation if the referenced message does not exist
+	 *
+	 * @param failIfNotExists - Whether to fail the message creation if the referenced message does not exist
+	 */
+	public setFailIfNotExists(failIfNotExists = true): this {
+		this.data.fail_if_not_exists = failIfNotExists;
+		return this;
+	}
+
 	/**
 	 * Serializes this builder to API-compatible JSON data.
 	 *
@@ -93,10 +99,10 @@ export class MessageReferenceBuilder implements JSONEncodable<MessageReferenceBu
 	 *
 	 * @param validationOverride - Force validation to run/not run regardless of your global preference
 	 */
-	public toJSON(validationOverride?: boolean): MessageReferenceBuilderData {
+	public toJSON(validationOverride?: boolean): RESTAPIMessageReference {
 		const clone = structuredClone(this.data);
 		validate(messageReferencePredicate, clone, validationOverride);
 
-		return clone as MessageReferenceBuilderData;
+		return clone as RESTAPIMessageReference;
 	}
 }