feat(Formatters): add formatEmoji (#20)

src/messages/formatters.ts

@@ -20,7 +20,7 @@ export function codeBlock(language: string, content?: string): string {
 }
 
 /**
- * Wraps the content inside an inline code.
+ * Wraps the content inside \`backticks\`, which formats it as inline code.
  * @param content The content to wrap.
  * @returns The formatted content.
  */
@@ -56,7 +56,7 @@ export function underscore<C extends string>(content: C): `__${C}__` {
 }
 
 /**
- * Formats the content into strikethrough text.
+ * Formats the content into strike-through text.
  * @param content The content to wrap.
  * @returns The formatted content.
  */
@@ -83,14 +83,14 @@ export function blockQuote<C extends string>(content: C): `>>> ${C}` {
 }
 
 /**
- * Formats the URL into `<>`, which stops it from embedding.
+ * Wraps the URL into `<>`, which stops it from embedding.
  * @param url The URL to wrap.
  * @returns The formatted content.
  */
 export function hideLinkEmbed<C extends string>(url: C): `<${C}>`;
 
 /**
- * Formats the URL into `<>`, which stops it from embedding.
+ * Wraps the URL into `<>`, which stops it from embedding.
  * @param url The URL to wrap.
  * @returns The formatted content.
  */
@@ -156,7 +156,7 @@ export function spoiler<C extends string>(content: C): `||${C}||` {
 }
 
 /**
- * Formats the user ID into a user mention.
+ * Formats a user ID into a user mention.
  * @param userId The user ID to format.
  * @returns The formatted user mention.
  */
@@ -165,7 +165,7 @@ export function userMention<C extends Snowflake>(userId: C): `<@${C}>` {
 }
 
 /**
- * Formats the user ID into a member-nickname mention.
+ * Formats a user ID into a member-nickname mention.
  * @param memberId The user ID to format.
  * @returns The formatted member-nickname mention.
  */
@@ -174,7 +174,7 @@ export function memberNicknameMention<C extends Snowflake>(memberId: C): `<@!${C
 }
 
 /**
- * Formats the channel ID into a channel mention.
+ * Formats a channel ID into a channel mention.
  * @param channelId The channel ID to format.
  * @returns The formatted channel mention.
  */
@@ -183,14 +183,39 @@ export function channelMention<C extends Snowflake>(channelId: C): `<#${C}>` {
 }
 
 /**
- * Formats the role ID into a role mention.
+ * Formats a role ID into a role mention.
  * @param roleId The role ID to format.
  * @returns The formatted role mention.
  */
 export function roleMention<C extends Snowflake>(roleId: C): `<@&${C}>` {
 	return `<@&${roleId}>`;
 }
 
+/**
+ * Formats an emoji ID into a fully qualified emoji identifier
+ * @param emojiId The emoji ID to format.
+ * @returns The formatted emoji.
+ */
+export function formatEmoji<C extends Snowflake>(emojiId: C, animated?: false): `<:_:${C}>`;
+
+/**
+ * Formats an emoji ID into a fully qualified emoji identifier
+ * @param emojiId The emoji ID to format.
+ * @param animated Whether the emoji is animated or not. Defaults to `false`
+ * @returns The formatted emoji.
+ */
+export function formatEmoji<C extends Snowflake>(emojiId: C, animated?: true): `<a:_:${C}>`;
+
+/**
+ * Formats an emoji ID into a fully qualified emoji identifier
+ * @param emojiId The emoji ID to format.
+ * @param animated Whether the emoji is animated or not. Defaults to `false`
+ * @returns The formatted emoji.
+ */
+export function formatEmoji<C extends Snowflake>(emojiId: C, animated = false): `<a:_:${C}>` | `<:_:${C}>` {
+	return `<${animated ? 'a' : ''}:_:${emojiId}>`;
+}
+
 /**
  * Formats a date into a short date-time string.
  * @param date The date to format, defaults to the current time.

tests/messages.test.ts

@@ -4,14 +4,15 @@ import {
 	channelMention,
 	codeBlock,
 	Faces,
+	formatEmoji,
 	hideLinkEmbed,
 	hyperlink,
-	spoiler,
 	inlineCode,
 	italic,
 	memberNicknameMention,
 	quote,
 	roleMention,
+	spoiler,
 	strikethrough,
 	time,
 	TimestampStyles,
@@ -107,7 +108,7 @@ describe('Messages', () => {
 			).toBe('[discord.js](https://discord.js.org/ "Official Documentation")');
 		});
 	});
-	
+
 	describe('spoiler', () => {
 		test('GIVEN "discord.js" THEN returns "||discord.js||"', () => {
 			expect<'||discord.js||'>(spoiler('discord.js')).toBe('||discord.js||');
@@ -140,6 +141,20 @@ describe('Messages', () => {
 		});
 	});
 
+	describe('formatEmoji', () => {
+		test('GIVEN static emojiId THEN returns "<:_:${emojiId}>"', () => {
+			expect<`<:_:851461487498493952>`>(formatEmoji('851461487498493952')).toBe('<:_:851461487498493952>');
+		});
+
+		test('GIVEN static emojiId WITH animated explicitly false THEN returns "<:_:[emojiId]>"', () => {
+			expect<`<:_:851461487498493952>`>(formatEmoji('851461487498493952', false)).toBe('<:_:851461487498493952>');
+		});
+
+		test('GIVEN animated emojiId THEN returns "<a:_:${emojiId}>"', () => {
+			expect<`<a:_:827220205352255549>`>(formatEmoji('827220205352255549', true)).toBe('<a:_:827220205352255549>');
+		});
+	});
+
 	describe('time', () => {
 		test('GIVEN no arguments THEN returns "<t:${bigint}>"', () => {
 			jest.useFakeTimers('modern');