Rewrite emoji_mart_data_light as TS (#25138)

app/javascript/mastodon/features/emoji/emoji_compressed.d.ts

@@ -0,0 +1,51 @@
+import type { BaseEmoji, EmojiData, NimbleEmojiIndex } from 'emoji-mart';
+import type { Category, Data, Emoji } from 'emoji-mart/dist-es/utils/data';
+
+/*
+ * The 'search' property, although not defined in the [`Emoji`]{@link node_modules/@types/emoji-mart/dist-es/utils/data.d.ts#Emoji} type,
+ * is used in the application.
+ * This could be due to an oversight by the library maintainer.
+ * The `search` property is defined and used [here]{@link node_modules/emoji-mart/dist/utils/data.js#uncompress}.
+ */
+export type Search = string;
+/*
+ * The 'skins' property does not exist in the application data.
+ * This could be a potential area of refactoring or error handling.
+ * The non-existence of 'skins' property is evident at [this location]{@link app/javascript/mastodon/features/emoji/emoji_compressed.js:121}.
+ */
+export type Skins = null;
+
+export type FilenameData = string[] | string[][];
+export type ShortCodesToEmojiDataKey =
+  | EmojiData['id']
+  | BaseEmoji['native']
+  | keyof NimbleEmojiIndex['emojis'];
+
+export type SearchData = [
+  BaseEmoji['native'],
+  Emoji['short_names'],
+  Search,
+  Emoji['unified']
+];
+
+export interface ShortCodesToEmojiData {
+  [key: ShortCodesToEmojiDataKey]: [FilenameData, SearchData];
+}
+export type EmojisWithoutShortCodes = FilenameData[];
+
+export type EmojiCompressed = [
+  ShortCodesToEmojiData,
+  Skins,
+  Category[],
+  Data['aliases'],
+  EmojisWithoutShortCodes
+];
+
+/*
+ * `emoji_compressed.js` uses `babel-plugin-preval`, which makes it difficult to convert to TypeScript.
+ * As a temporary solution, we are allowing a default export here to apply the TypeScript type `EmojiCompressed` to the JS file export.
+ * - {@link app/javascript/mastodon/features/emoji/emoji_compressed.js}
+ */
+declare const emojiCompressed: EmojiCompressed;
+
+export default emojiCompressed; // eslint-disable-line import/no-default-export